It is pseudoscience because each metal is known to be a unique element alchemy is a science or pseudoscience.
What is a matter in chemistry?Matter is anything that occupies space and has mass; in other respects, matter is the "thing" that the cosmos is made of. The fundamental constituents of all stuff are called elements. These are not changed into other elements by conventional chemical processes and have distinct chemical and physical properties.
What does matter consist of?Matter can be solid, liquid, or gaseous on Earth. Solid particles, fluids, and gases are supported by the exceptionally small building components known as atoms and molecules. A solid's component particles are attracted to one another strongly. They are close to one another and vibrate en position without passing each other.
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The complete question is -
Alchemy is a branch of ancient knowledge that states that all matter is composed of air, fire, earth. Which of these best explains whether alchemy is a science or pseudoscience?
A-It is a science because all matter is known to be made of elements.
B-It is a science because air, fire, earth, and water all are forms of matter.
C-It is pseudoscience because all matter is known to be made of atoms.
D-It is pseudoscience because ancient knowledge is mystical yet reliable.
E-It is pseudoscience because each metal is known to be a unique element.
I need help with #2 please
Answer:
Third choice
Explanation
Because reactivity of the elements decrease across the periodic table and it depends on the number of protons it has. Hence low number of protons more reactive.
This graph shows the displacements and times for the winner of
a horse race.
What was the average speed of the horse that won the race?
O 0.05 m/s
O 20 m/s
O 45 m/s
Calculate Gibbs energy for the following condition K = 1.7 x 10^2, T = 25 c
The Gibbs free energy of the system is - 12.7 kJ/mol.
What is the Gibbs free energy?The term Gibbs free energy has to do with the amount of thermodynamic work that could be done by a system. We know that we can find the Gibbs free energy by the use of the equilibrium constant and the temperature of the system and that is what we have to do in this question as we do it.
We know that;
ΔG = -RTlnK
ΔG = The Gibbs free energy
R = gas constant
T = temperature
K = equilibrium constant
Thus;
R = 8.314 J/K/Mol
T = 25°C + 273 = 298 K
K = 1.7 x 10^2
When we substitute the values, we have;
ΔG =-(8.314 * 298 * ln 1.7 x 10^2)
ΔG =- 12.7 kJ/mol
We can see from the calculation that we are going to have the Gibbs free energy of the system thus described as - 12.7 kJ/mol.
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How many liters of water are produced from the combustion of 2.5 moles of methane gas?
Answer:
this is your answer 1234
What is a negative control?
A- Group that gives a result that disproves your hypothesis
B- Group in which no response is expected
C- Group that gives an unexpected result
D- Group in which a response is expected
According to the given information Group in which no response is expected is a negative control.
The correct option is C.
What is an example of a hypothesis ?A scientist may develop the hypothesis that a given type of tomato will be red if it carries the gene for the colour red. The scientist then discovers that every tomato of this variety is red during investigation.
What is the purpose of an hypothesis?Hypotheses are frequently employed to promote scientific research and enhance knowledge. These clear declarations serve as the cornerstone for all research experiments. Therefore, a problem in the creation of a hypothesis may lead to errors in the design of a whole experiment.
What is the main function of hypothesis?As previously said, a hypothesis serves as a response to the research question and directs the gathering and analysis of data. Researchers can use hypotheses to both identify relationships between variables and forecast relationships based on theoretical principles and/or empirical data.
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Part A What happens to the water molecules when heat is added?
When heat is added to the water molecules there is an increase in temperature causing the water molecules to gain kinetic energy and move more rapidly. The water molecules will then move further apart resulting in an increase in the water volume.
What are water molecules?The water molecule is said to be composed of two hydrogen atoms, each linked by a single chemical bond to an oxygen atom.
When heat is added to water molecules, it can result in;
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Copper metal plus zinc sulfate solution
Write the Molecular equation
Write the total ionic equation
Write the Net ionic equation
Is the reaction category replacement or metathesis?
Copper metal plus zinc sulfate solution : is not possible because the copper metal is less reactive than zinc and copper cannot displace the zinc.
The copper metal with zinc sulfate reaction is not possible because copper is less reactive than the zinc cant cannot displace the zinc. so, the reaction :
Cu + ZnSO₄ ----> no reaction
but the zinc plus copper sulfate is possible , copper is less reactive than zinc and zinc can displace the copper . and the reaction is called as displacement reaction the reacion is given as :
CuSO₄ + Zn -----> ZnSO₄ + Cu
Thus, Copper metal plus zinc sulfate solution : is not possible because the copper metal is less reactive than zinc and copper cannot displace the zinc.
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The Mackenzie River in northern Canada contains, on average,
0.820 mM Ca2+
0.430 mM Mg2+
0.300 mM Na+
0.0200 mM K+
0.250 mM Cl–
0.380 mM SO42–
and
1.82 mM HCO3–.
What, on average, is the total mass of these ions in 4.75 L of Mackenzie River water?
On average, the total mass of ions in 4.75 liters of Mackenzie River water is 0.466 g grams.
What is the total mass of ions?The formula mass of an ionic compound is determined in the same manner as the formula mass of a covalent compound is determined: by adding the average atomic masses of all the atoms in the compound's formula.
Hence, the total mass is computed as follows:
(0.820 mM Ca 2⁺) X ( 2.25 L) = 1.845 mmoles at 40.0 g/mol = 73.8 mg
(0.430 mM Mg 2⁺) X ( 2.25 L) = 0.9675 mmoles at 24.3 g/mol = 23.51 mg
(0.300 mM Na⁺) X ( 2.25 L) = 0.675 mmol at 23.0 g/mol = 15.52 mg
(0.0200 mM K⁺) X ( 2.25 L) = 0.045 mmol at 39.1 = 1.75 mg
(0.250 mM Cl-) X ( 2.25 L) = 0.5625 mmol at 35.45 g/mol = 19.94 mg
(0.380 mM SO₄²-) X ( 2.25 L) = 0.855 mmol at 96.06 g/mol = 82.13 mg
(1.82 mM HCO₃ -) X ( 2.25 L) = 4.095 mmol at 61.02 g/mol = 249.87 mg
Thus, total mass = 73.8 + 23.51 + 15.52 + 1.75 + 19.94 + 82.13 + 249.87
= 466.52mg
Converted into grams we have:
466.52/1000
= 0.46652
Hence, on average, the total mass of these ions 4.75 L [tex]\approx[/tex] 0.47 grams.
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Consider an atom of Sulfur. Predict one atom in the same group which is larger than a sulfur atom, and one which is smaller. Using these trends and your understanding of Coulomb's Law, analyze how forces of attraction and repulsion affect the size of an atom.
Explanation:
as the number of shell increased the size of the atom increase but the same shell with different number of valence electron, as electron number increase the attraction between nucleus and valance electron increased then the atom becomes shrinks and so the size of it decreased.
Max Points, 4 Parts,
1. explain to John Dalton what his Solid Sphere Model got correct, and what it got incorrect
2. explain to Dmitri Mendeleev what his periodic table got correct, and what it got incorrect
3. explain to Ernest Rutherford what Niels Bohr's model of the atom would eventually improve compared to his own Nuclear Model
4. Isaac Newton was actually an avid alchemist (popular with the learned thinkers in the 17th century). He began studying chemistry but eventually grew bored of it for the perceived excitement of alchemy. In 1-2 paragraphs, convince Isaac Newton to toss aside his alchemy fixation for true chemistry
The assumption that an atom is indestructible is refuted by the fact that it can be further split into protons, neutrons, and electrons.
However, an atom is the smallest particle involved in chemical reactions. According to Dalton, every aspect of an element's atoms is the same.
The atom is the smallest unit of matter that may be divided without generating particles with an electrical charge. It is also the smallest material with properties resembling chemical elements. As a result, the atom acts as the basic building block of chemistry. Examine various electron configurations in the electron shells that enclose the atomic nucleus of an atom.
Examine various electron configurations in the electron shells that enclose the atomic nucleus of an atom. An atom is primarily made of space. The rest is made up of a positively charged nucleus made up of protons and neutrons that is surrounded by a cloud of negatively charged electrons. The nucleus is small and dense in comparison to electrons, which are the lightest charged particles in nature.
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A 135.0-g sample of a metal at 153.0 °C is added to 255.0 g of ethylene glycol (specific heat = 2.43 J/g･ °C) in a calorimeter at 25.7 °C. The temperature of the ethylene glycol rises to 38.2 °C. Calculate the specific heat capacity of the metal, assuming that all the heat lost by the metal is gained by the ethylene glycol.A 135.0-g sample of a metal at 153.0 °C is added to 255.0 g of ethylene glycol (specific heat = 2.43 J/g･ °C) in a calorimeter at 25.7 °C. The temperature of the ethylene glycol rises to 38.2 °C. Calculate the specific heat capacity of the metal, assuming that all the heat lost by the metal is gained by the ethylene glycol.
Answer:
q
=
−
176000
J
×
1
k
J
1000
J
=
−
176
k
J
The specific heat capacity of the metal can be calculated using calorimetric equation. The specific heat capacity of the metal is 0.499 J/g °C.
What is specific heat capacity?Specific heat capacity of a substance is the heat energy required to rise its temperature by one degree Celsius per one gram. It is an intensive property and thus constant for a substance.
The calorimetric equation connecting the mass m, specific heat capacity c, temperature difference ΔT with the heat energy q is written as :
q = m c ΔT .
Given the heat energy of the metal is lost to ethylene glycol. Hence the heat energy change for both of the substance are equal and can be written as follows:
135 g × (153 -38.2 °C ) × c = 255 g × 2.43 J/g °C × (38.2 -25.7 °C)
c = [ 255 g × 2.43 J/g °C × (38.2 -25.7 °C) ] / [ 135 g × (153 -38.2 °C ) ]
= 0.499 J/g °C.
Hence, the specific heat capacity of the metal is 0.499 J/g °C..
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Which practice is the most sustainable?
A. Using a combination of paper and plastic grocery bags only once
B. Using cloth grocery bags over and over again
C. Using paper grocery bags once and then recycling them
D. Using plastic grocery bags once and then recycling them
The practice is the most sustainable is using cloth grocery bags over and over again.
The sustainable practices are the practices which supports the ecological and economic health . the is of plastic bag , paper or cloth bag over and over again . we have to reuse for the shopping purpose. go for the paperless document. cloth bag are reusable and better than a plastic bags. cloth bag will reduces the plastic use and the pollution will also reduce caused by the plastic bags.
Thus, The practice is the most sustainable is using cloth grocery bags over and over again.
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This is the name of the variable in a scientific experiment that is controlled by the scientist
O Negative control
O Independent Variable
O Dependent Variable
O Positive control
Answer:
b.Independent variable
Explanation:
The independent variable is the one that is changed by the scientist. To insure a fair test, a good experiment has only one independent variable. As the scientist changes the independent variable, he or she records the data that they collect.
.
The girl in the picture is at the highest point in swinging and starts to come down. Which statement best describes the changes
in energy as she begins to descend?
(1 point)
O Kinetic and potential energy are increasing.
O Potential energy is increasing, and kinetic energy is decreasing.
O Kinetic and potential energy are decreasing.
O Kinetic energy is increasing, and potential energy is decreasing.
Kinetic energy is increasing, and potential energy is decreasing statement best describes the changes in energy as she begins to descend.
What energy is called kinetic energy?A particle or an object that is in motion has a sort of energy called kinetic energy. An item gains kinetic energy when work, which involves the transfer of energy, is performed on it by generating a net force. Kinetic energy refers to the energy that a moving thing has as a result of its motion.
What are sources of kinetic energy?Motion is kinetic energy. A object's velocity increases with pace. both the kinetic energy of water flowing (hydraulic energy) and the wind (wind energy), which can be used to produce energy. (Kinetic energy) is a type of energy.
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A 32.00 mL sample of an unknown H3PO4 solution is titrated with a 0.140 M NaOH solution. The equivalence point is reached when 25.24 mL of NaOH solution is added.
The neutralization reaction is
H3PO4(aq)+3NaOH(aq)→3H2O(l)+Na3PO4(aq)
What is the concentration of the unknown H3PO4 solution?
Express the molarity to three significant figures.
The concentration of the unknown [tex]H_3PO_4[/tex] solution would be 0.0368 M
Stoichiometric problemThe equation of the reaction is as follows:
[tex]H3PO_4(aq)+3NaOH(aq)--- > 3H_2O(l)+Na_3PO_4(aq)[/tex]
The mole ratio of the [tex]H_3PO_4[/tex] solution to the NaOH solution is 1:3.
But 0.140 M, 25.24 mL of NaOH was used.
Recall that: mole = molarity x volume (in Liters)
Mole of 0.140 M, 25.24 mL of NaOH = 0.140 x 25.24/1000
= 0.0035336 mol
Following the mole ratio, the equivalent mole of [tex]H_3PO_4[/tex] would be:
0.0035336 /3 = 0.00117786666
Recall that: molarity = mol/volume (in Liters)
Molarity of 0.00117786666 mol, 32.00 mL [tex]H_3PO_4[/tex] = 0.00117786666/0.032
= 0.0368 M
In other words, the molarity of the [tex]H_3PO_4[/tex] solution to 3 significant figures is 0.0368 M.
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Will three different liquids lose heat at the same rate?
Yes, because of the liquid's specific heat capacity or heat capacity, different liquids heat up at varying speeds.
What does the same quantity of heat gain or lose at the same temperature?Which amount of heat is needed to raise the liquid's temperature by one degree Celsius? When analyzing a mass of 1 kg, the term "heat capacity" or "specific heat capacity" refers to the amount of heat needed to raise the temperature of 1 kilogram of liquid or fluid by 1°C.
What aspects of a liquid's rate of heat loss are there?area of the body's surface. nature of the body's surface. the body's surface's composition (material effects conductivity through walls of the body).
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Solid potassium (K) conducts an electric current, whereas solid potassium iodide (KI) does not
because a. solid potassium is a nonmetal
b. solid potassium has a delocalized sea of electrons and KI has its cations and anions
too close together
c. KI has covalent bonds
d. Kl needs to be reacted with another compound first
Solid potassium (K) conducts an electric current, whereas solid potassium iodide (KI) does not because solid potassium has a delocalized sea of electrons and KI has its cations and anions.
How does potassium iodide work?Positively charged potassium and negatively charged iodine combine to form the straightforward inorganic ionic chemical potassium iodide. It is solid at room temperature and resembles sodium chloride or table salt in terms of crystalline structure.
The major uses of potassium iodide are to treat hyperthyroidism and as a dietary supplement for those who are iodine deficient. Additionally, it is utilized as an expectorant to treat asthma and other long-term respiratory disorders, as well as to shield the thyroid gland from radiation.
When potassium iodide is dissolved in water, it splits into cations and anions, enabling free electron movement across the solution. It does not conduct electricity when it is in a dry crystal state, though, like other ionic compounds.
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Fe(s) + 2 HNO3(aq) →Fe(NO3)2(aq) + H₂(g)
What is the total number of oxygen atoms represented in the formula of the iron
compound produced?
Answer: 6
Explanation:
If we are only looking at the number of oxygen atoms in the product then the answer is 6.
NO3 contains 3 oxygen atoms.
(NO3)2 means that we have 2 NO3 groups which means there are 6 oxygen atoms.
3.14 Lab: Reconstruct Geologic History Assignment k12
In order to reconstruct Geologic History, geological principles must be used. Some of the principles of Geology used are:
Principle of SuperpositionPrinciple of HoriztonalityPrinciple of InclusionPrinciple of Contact MetamorphismPrinciple of Cross- Cu.tt.ing RelationsWhat are the definitions of the above principles?Principle of Superposition: In a given vertical arrangement of undisturbed sedimentary layers of the flow of lava, the oldest layers are usually the first from the bottom up and the youngest are the first from top down. [See Image A]
Horizontality: Usually rock sediments are first deposited in an approximately horizontal manner. Where deformations such as folds and tilts are observed, it is a result of deformation which comes after deposition.
Inclusion: All Inclusions that are not part of the rock formation are deemed to be older that the rock formation.
Metamorphism: A hot magma intrusion "bakes" the somewhat colder surrounding rock. The rock that is cooked during this Contact Metamorphism procedure must be older.
Cross- Cu.tt.ing Relations: If one geological feature cuts over another, the cut feature is older.
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Blimps, which frequently fly over sporting events, hold approximately 1.85×10^5 ft3 of helium.
Part A
If the gas is at 23 ∘C and 1.0 atm, what mass of helium is in the blimp?
Express the answer in kilograms to two significant figures.
The mass of the Helium that is produced is 860 Kg.
What is the mass of the Helium?We know that we must first be able to obtain the number of moles of the Helium gas from the ideal gas equation and that is the first step in our solution.
Thus we have;
Volume of the gas = 1.85×10^5 ft3 or 5.23 * 10^6 L
Temperature of the gas = 23 ∘C + 273 = 296 K
Pressure of the gas = 1.0 atm
Number of moles of the gas = ??
Gas constant = 0.082 atmLK-1mol-1
Then;
PV = nRT
P = pressure of the gas
V = volume of the gas
n = Number of moles of the gas
R = gas constant
T = temperature
n = PV/RT
n = 1.0 atm * 5.23 * 10^6 L/0.082 atmLK-1mol-1 * 296 K
n = 5.23 * 10^6/24.27
n = 2.15 * 10^5 moles
Mass of the Helium = 2.15 * 10^5 moles * 4 g/mol = 860 Kg
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An arctic weather balloon is filled with 30.6 L of hellum gas inside a prep shed. The temperature inside the shed is 12. °C. The balloon is then taken outside,
where the temperature is -28. °C. Calculate the new volume of the balloon.
You may assume the pressure on the balloon stays constant at exactly 1 atm. Be sure your answer has the correct number of significant digits.
The new volume of the balloon is 26.307L. This can be solved with the help of Charles' law.
What is Charles' law?
According to the Charles' law, the volume of the gas is directly proportional to the temperature at constant pressure.
Here we assume that the pressure is constant in both the cases.
V1/T1 = V2/T2
30.6L/285.15K = V2/245.15K
V2= 26.307L.
Therefore, the new volume at -28 degree Celsius and constant 1 atm pressure is 26.307L according to Charles' law.
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10. Help, question is in picture below!
The set of reactions that best represents the diagram of a precipitation reaction is given below:
Li₂SO₄ (aq) + AgNO₃ (aq) ---->
The net ionic equation is given below:
SO₄²⁺ (aq) + 2 Ag⁺ (aq) ----> Ag₂SO₄ (s) (a precipitate)
What are precipitation reactions?Precipitation reactions are reactions in which two soluble solutions when they are mixed result in the formation of an insoluble precipitate.
Precipitation reactions rea usually double replacement reactions.
Double replacement reactions also known as double displacement reactions are reactions in which an exchange of radicals occurs between two metallic cations resulting in the formation of an insoluble compound that forms the precipitate observed.
Considering the given reactions and the products obtained:
NH₄Br (aq) + Pb(C₂H₃O₂)₂ (aq) ---> forms no precipitate
KNO₃ (aq) + CuCl₂(aq) ----> forms no precipitate
Li₂SO₄ (aq) + 2 AgNO₃ (aq) ----> 2 LiNO₃ (aq) + Ag₂SO₄ (s) (forms a precipitate)
NaClO₄ (aq) + CaCl₂ (aq) ----> forms no precipitate
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If you had 1.0 L of 0.25 M LiOH - how many moles of OH- ions were produced when LiOH was dissolved in water?
a) How many moles of LiOH do you have in 1.0 L of 0.25 M LiOH?
b) What is the mole to mole ratio of LiOH to OH- in the balanced chemical equation?
c) How many moles of OH- are in 1.0 L of 0.25 M LiOH?
d) Bonus: What is the pH?
a) The number of moles of LiOH in 1.0L of 0.25M LiOH is 0.25.
b) The mole-to-mole ratio of LiOH to OH⁻ is 1:1.
c) The number of moles of OH⁻ ions in 1.0L of 0.25M LiOH is 0.25.
d) The pH is equal to 13.39.
What is a mole?A mole can be defined as a unit for the measurement of a huge number of entities of atoms, molecules, ions, or other particular particles. The number of entities constitute in one mole is equal to 6.023 × 10 ²³ which is known as Avogadro’s constant.
The dissociation of LiOH in water is as:
LiOH (aq) → Li⁺(aq) + OH⁻(aq)
The mole-to-mole ratio of LiOH to OH- in the balanced chemical equation is 1 : 1 as one mole of LiOH produces one mole of OH⁻ ions.
Given, the number of concentrations of LiOH solution = 0.25 M
The volume of the solution = 1.0 L
The number of moles of LiOH = Molarity ×Volume
n = 0.25 × 1
n = 0.25 mol of LiOH
The number of moles of ions of OH⁻ from LiOH = 0.25 mol
We know that pH + pOH = 14
pH = 14 -pOH
pH = 14 - (-log [OH⁻])
pH = 14 + log (0.25)
pH = 13.39
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The atomic weight of element A is 88.7 if the element consist of two Isotopes that have mass number 88 and 92. what is the approximate % natural abundance of the heaviest Isotope?
Answer: 17.5 %
Write the equation for relative Atomic mass in terms of an ( 'a' being one isotope's mass) and solve for x:
88.7 = [tex]\frac{(a * 88) + ((100 - a) * 92)}{100}[/tex]
8870 = 88*a + 9200 - 92 * a
4*a = 330
a = 82.5
Find the value of b using a,
100 - a = b
100 - 82.5 = b
b = 17.5
So, the % abundance for the isotope with mass number 88 is 82.5% and the % abundance for the isotope with mass number 92 is 17.5% .
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Please help I have been stuck for a week Which of the following reactions is BALANCED and shows INCOMPLETE combustion
A. 2C5H12 + 1102--> 12CO+ 10H2O
B. 2C5H12 + 1102--> 10CO +12H20
C. C5H12 + 802--> 5CO2+6H20
D. C5H12 + 802--> 6CO2 5H20
The reaction given below shows a balanced incomplete combustion reaction:
B. 2 C₅H₁₂ + 11 O₂--> 10 CO + 12 H₂O
What is a combustion reaction?A combustion reaction is a reaction that involves substances reacting exothermically with oxygen to release large amounts of heat and light energy.
Hydrocarbons are compounds that contain only hydrogen and carbon.
Hydrogen combusts completely in oxygen to produce carbon(iv) oxide and water.
However, the incomplete combustion of hydrocarbons produces carbon (ii) oxide and water instead carbon(iv) oxide and water.
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3. Look at the positions of calcium, beryllium, and magnesium on the periodic table. Based on
their locations, predict how many valence electrons these elements have and predict what
the reactivity of these elements will generally be.
Answer:
Reactivity of these elements as follow
Calcium > Magnesium > Beryllium
What is valance electron?
A valence electron is an electron connected with an atom and capable of participating in the formation of a chemical bond; in a single covalent connection, both atoms contribute one valence electron to form a shared pair. The existence of valence electrons can affect the element's chemical characteristics and ability to bind with other elements: a valence electron can only be in the outermost electron shell of a main group element.
The valence shell, also known as the valence orbital, is the orbital found in the atom's outermost area. These valence shells contain electrons known as valence electrons, which are responsible for the chemical process. When one electron is withdrawn or added to this valence shell, the basic goal is to complete the element's octet.
The elements beryllium (Be), magnesium (Mg), calcium (Ca), have two electrons in their valence shells, giving them an oxidation state of +2
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10^-2 M NH3 in water Kb=1.8*10^-5, conc. of all species=?
1.34 x 10^{-3} is the concentration of NH4 .
What is pH ?
pH, a quantitative measure of the acidity or basicity of aqueous or other liquid solutions. Widely used in chemistry, biology, and agriculture, this term translates the concentration value of hydrogen ions. This typically ranges from about 1 to 10-14 gram equivalents per liter. Converted to a number between 0 and 14. At neutral (neither acidic nor alkaline), the concentration of hydrogen ions is 10−7 gram equivalents per liter, which corresponds to a pH of 7. Solutions below pH 7 are considered acidic. Solutions with a pH greater than 7 are considered basic or alkaline.
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How many grams of sodium iodide, Nal, must be used to produce 90.2 g of iodine, 1₂?
mass:
g Nal
300 grams of sodium iodide, Nal, must be used to produce 90.2 g of iodine, I₂
Sodium iodide is the ionic compound formed from the chemical reaction of sodium metal and iodine
Here given data is
I₂ has the molar mass = 253.8g/mol
So how many moles of I₂ we want to produce = 90.2 g I₂ ×1mol I₂ /253.8g/mol = 0.35 mole of I₂
Then the conversion of NaI to I₂ are
2 NaI → 2Na + I₂
0.35 mole of I₂ × 2 mole of NaI/mole of I₂ = 2 mole of NaI are needed
covert this value into gram
2 mole of NaI ×150. g NaI / mole NaI = 300 gram NaI would be needed
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How many grams of HCl are in 1 L of 6 M HCl
16 grams of HCl are in 1 L of 6 M HCl
Number of moles of a substance is actually the ratio of the given mass in the chemical reaction to the mass of one mole of substance. One mole of any substance equals Avogadro's number. It is also used to express concentration units such as mole per liter or molecular weight
Formula for molarity of solute is given as:
Molarity = moles of solute
Volume of solution in liter
moles of solute = Volume of solution × Molarity
moles of solute = 1L × 6M ⇒ 6moles
Mass of HCl = Number of moles × Molecular weights
= 6 × 36.5 ⇒ 16 grams
Therefore the 16 grams of HCl are in 1 L of 6 M HCl
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Which of the following is/are correct about molar mass?
A. Can be calculated using the elements’ atomic mass in the periodic table
B. It is the mass in grams of one mole of any pure substance
C. Has the unit of mol/g
D. A and B