Answer:
The final pressure is approximately 0.78 atm
Explanation:
The original temperature of the gas, T₁ = 263.0 K
The final temperature of the gas, T₂ = 298.0 K
The original volume of the gas, V₁ = 24.0 liters
The final volume of the gas, V₂ = 35.0 liters
The original pressure of the gas, P₁ = 1.00 atm
Let P₂ represent the final pressure, we get;
[tex]\dfrac{P_1 \cdot V_1}{T_1} = \dfrac{P_2 \cdot V_2}{T_2}[/tex]
[tex]P_2 = \dfrac{P_1 \cdot V_1 \cdot T_2}{T_1 \cdot V_2}[/tex]
[tex]P_2 = \dfrac{1 \times 24.0 \times 298}{263.0 \times 35.0} = 0.776969038566[/tex]
∴ The final pressure P₂ ≈ 0.78 atm.
Cuántos gramos de cloruro de magnesio se pueden obtener si se hacen reaccionar 354,9g de cloruro de titanio (IV) y 285g de magnesio puro, Recuerde que como productos obtiene titanio y cloruro de magnesio.
a. escriba la ecuación balanceada
b. determine el reactivo limite
c. La cantidad de reactivo en exceso
Answer:
sorry I dont speak Spanish
Which might cause someone to be exempt from soccer practice? *
a. an injury
b. a previous absence
Answer:
injury
Explanation:
because get hurt we can say injury
How many formula units are there in 7.55 moles potassium chloride?
Answer:
mole is equal to 1 moles Potassium Chloride, or 74.5513 grams.
Anyone do this worksheet? Answers?
Answer:
1. Moles of oxygen required to react with 5 moles of C₈H₁₈ = = 62.5 moles of oxygen
2. Mass of oxygen required = 2000 g of oxygen
3. Moles of CO₂ that will be produced = 40 moles of CO₂
4. Mass of CO₂ that will be produced = 1760 g of CO₂
5. Moles of H₂O that will be produced = 45 moles of H₂O
Explanation:
Balanced equation of the reaction : 2 C₈H₁₈ + 25 O₂ ---> 16 CO₂ + 18 H₂O
1. Mole ratio of Oxygen and C₈H₁₈ = 25 : 2
Moles of oxygen required to react with 5 moles of C₈H₁₈ = 5 × 25/2 moles
Moles of oxygen required to react with 5 moles of C₈H₁₈ = = 62.5 moles of oxygen
2. Mass of oxygen required = number of moles of oxygen × molar mass of oxygen
Molar mass of oxygen = 32.0 g/mol
Mass of oxygen required = 62.5 moles × 32.0 g/mol
Mass of oxygen required = 2000 g of oxygen
3. Mole ratio of CO₂ and C₈H₁₈ = 16 : 2
Moles of CO₂ that will be produced = 5 × 16/2 moles
Moles of CO₂ that will be produced = 40 moles of CO₂
4. Mass of CO₂ that will be produced = number of moles of CO₂ × molar mass of CO₂
Molar mass of CO₂ = 44.0 g/mol
Mass of CO₂ that will be produced = 40 moles × 44 g/mol
Mass of CO₂ that will be produced = 1760 g of CO₂
5. Mole ratio of H₂O and C₈H₁₈ = 18 : 2
Moles of H₂O that will be produced = 5 × 18/2 moles of H₂O
Moles of H₂O that will be produced = 45 moles of H₂O
What would be the pH of a solution of a solution with a hydrogen ion concentration of 0.001 M?
0001 M HCl is the same as saying that 1 *10-4 moles of H+ ions have been added to solution. The -log[. 0001] =4, so the pH of the solution =4.
A compound has an empirical formula of CH20. What is its molecular formula, if its molar mass is 360 g/mol?
a. C6H12O6
b. C12H24O12
Answer:
a
Explanation:
A actual molecule of glucose contains six carbon atoms, twelve hydrogen atoms, and six oxygen atoms.
Answer:
B.
Explanation:
Crude oil is a liquid kind of what?
Answer:
Crude oil is a mixture of comparatively volatile liquid hydrocarbons (compounds composed mainly of hydrogen and carbon), though it also contains some nitrogen, sulfur, and oxygen. Those elements form a large variety of complex molecular structures, some of which cannot be readily identified.
URGENT PLEASE HELP ILL MARK BRAINLIST Please someone look at the graph and tell me how to fill in the blank like you don't need to do it jsut tell me how and I'll do it myself I jsut don't understand how
the instructions are using your periodic table fill in the chart below to show how many elements combine ironically to form neutral compounds remebr that each compound needs to have a total charge of zero
Answer:
Filled below
Explanation:
#v.e means number of valence electrons.
Also, the column total v.e is gotten by adding the v.e of the metal to the v.e of the non metal based on the chemical formula of both of the 2 elements combined.
K: Cl: 5; KCl; 1 + 5 = 6
Be: S: 6; BeS; 2 + 6 = 8
Na: F: 7; NaF; 1 + 7 = 8
Mg: Se: MgSe; 2 + 6 = 8
Al; N; AlN; 1 + 5 = 6
Be; F; BeF2; 2 + 2(7) = 16
Mg; N; Mg3N2; 3(2) + 2(7) = 20
Why does increasing the temperature of water increase the rate of chemical reaction in the graph
Answer:
Explanation:
Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions.
Plz mark me brainliest.
Make up a short story to explain jays speed and acceleration change throughout his walk. Make sure to address parts A-D
Answer:
Speed of jays increases first, again increases, decreases and then increases.
Explanation:
The speed of jays increases while moving from rest to point A and no acceleration due to constant speed. From point A to point B, the speed is continues to increase and no acceleration. From point B to point C, the speed of jays decreases and acceleration is produced in the journey due to change of speed and from point C to point D, the speed of jays again increases and acceleration is produced due to increasing the speed.
Answer:
The speed of jay's walk increases first, again increases, then it decreases and then increases due to his acceleration walk during parts A-D.
Explanation:
What are the 2 common uses for Polonium?
what is a balanced chemical equation in chemistry
A gas of certain mass occupies volume of 1.2 L at 37°C and 3 atm. At what temperature will the volume and pressure of this gas become one-third of their initial values?
Answer: At a temperature of 34.44 K the volume and pressure of this gas become one-third of their initial values.
Explanation:
Given : [tex]V_{1}[/tex] = 1.2 L, [tex]T_{1} = 37^{o}C = (37 + 273) K = 310 K[/tex]
[tex]P_{1}[/tex] = 3 atm, [tex]V_{2} = \frac{1.2}{3} = 0.4 L[/tex] , [tex]P_{2} = \frac{3}{3} = 1 atm[/tex]
Formula used to calculate the final temperature is as follows.
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}[/tex]
Substitute the values into above formula as follows.
[tex]\frac{P_{1}V_{1}}{T_{1}} = \frac{P_{2}V_{2}}{T_{2}}\\\frac{3 atm \times 1.2 L}{310 K} = \frac{1 atm \times 0.4 L}{T_{2}}\\T_{2} = \frac{1 atm \times 0.4 L \times 310 K}{3 atm \times 1.2 L}\\= \frac{124}{3.6} K\\= 34.44 K[/tex]
Thus, we can conclude that the final temperature is 34.44 K.
how do you answer #5?
Answer:
Percentage Yield is calculated by doing -> experimental/theoretical x 100% = percentage yield.
I THINK that if your questions are connected it should be 14/16.89 x 100% = 82.889%
Explanation:
how many formula units are present in 0.354 moles of copper (III) chloride, CuCl2
Answer:
47.596008
Explanation:
How many flourine atoms are present in 5.3 grams of flourine sample? (note that you have to use the 3 step method)
Answer:
1.7x10²³ Fluorine atoms are present
Explanation:
To solve this question we must know that, to find the amount of atoms of a substance from its mass, we have, as first, to convert this mass to moles using molar mass of the substance. With the moles we can find the amount of molecules using Avogadro's number. And with the formula we can know the atoms presents:
Moles Fluorine (F₂, Molar mass: 37.997g/mol)
5.3g * (1mol / 37.997g) = 0.139 moles F₂
Molecules F₂:
0.139 moles F₂ * (6.022x10²³molecules / mol) = 8.4x10²² molecules F₂
As 1 molecule of F₂ contains 2 atoms of Fluorine:
8.4x10²² molecules F₂ * 2 =
1.7x10²³ Fluorine atoms are presentState of Matter
Can someone help me ?
Answer:
HBrO forms hydrogen bonds with each other and with water
Acetic acid forms hydrogen bonds with each other and with water
Formaldehyde can't form hydrogen bonds to each other but do form hydrogen bonds with water.
Explanation:
The hypohalous acids are polar molecules hence they form intermolecular hydrogen bonds. They also form hydrogen bonds with water. This enables it to dissolve in water.
Acetic acid can form dimmers with each other due to hydrogen bond formation. Also, acetic acid is capable of forming hydrogen bonds with water. This enables acetic acid to dissolve in water.
Aldehydes do not form intermolecular hydrogen bonds with each other because there is no hydrogen atom attached directly to oxygen in aldehydes. As such, they can only form hydrogen bonds with water. This accounts for the water solubility of low molecular weight aldehydes. Hence, formaldehyde can't form hydrogen bonds to each other but do form hydrogen bonds with water.
List three strategies for answering questions that you don't know anything
about?
Help please I'll give brainless no links, please I've been asking this question from this morning, and no one answer
How much energy is released if a sample loses 0.025 kg mass through
radioactive decay?
Answer:
C
Explanation:
The amount of energy in radio active decay will be released 2.25 × [tex]10^{17}[/tex]J.
What is radioactive decay?The process of radioactive decay is the loss of energy through radiation from an unstable atomic nucleus. The term "radioactive" refers to a substance that contains unstable nuclei.
Calculation of energy which released in radioactive decay.
Given data:
M = 0.025 kg
E = ?
Energy of the radioactive decay can be determined by using the formula:
E= m[tex]c^{2}[/tex]
where, E is energy , m is mass and c is speed of light.
Put the value of given data in above equation.
E = (0.025) ×(3×[tex]10^{8}[/tex])∧2J
E = 0.025 × 9 × [tex]10^{18}[/tex].J
E = 0.225 × [tex]10^{18}[/tex].J
E= 2.25 × [tex]10^{17}[/tex]J
Therefore, The amount of energy in radio active decay will be released 2.25 × [tex]10^{17}[/tex]J.
To know more about radioactive decay.
https://brainly.com/question/1770619.
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Which of the following represents an alpha particle?
O A. je
B. He
O C. Y
O D.B
Answer:
Alpha particle- B. He (Helium 4 atom )
He represents an alpha particle and the correct option is option B.
What is an alpha particle?Alpha particles are alternatively known as Alpha radiation or Alpha rays. It is a positively charged particle emitted from the decay of various radioactive materials.
They are emitted from the nucleus of some radionuclides during a form of radioactive decay, called alpha-decay.
Alpha particle mass is due to the two protons and two neutrons bonding.
An alpha-particle is identical to the nucleus of a normal (atomic mass four) helium atom i.e. a doubly ionised helium atom.
Therefore, He represents an alpha particle and the correct option is option B.
Learn more about Alpha particles, here:
https://brainly.com/question/2288334
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Look at the picture to answer
Answer:
True; Water is stored in reservoirs.
some one help me with this please
Answer:
no pics sorry. v vc. gkfgildhrmsykesetksyekuxrux
Which of these is the BEST definition of "civilization" for a history class? A) the way people talk B) a group that has a culture C) the ability to walk upright D) how sophisticated people behave
Answer:
Is C
Explanation:
How is chemical equilibrium achieved?
Question 15 options:
When the concentrations of reactants and products are constantly changing.
When the concentrations of reactants and products are constant.
When the concentrations favor the reactants.
When the concentrations favor the products.
Answer:
Explanation:
Equilibrium is achieved in a chemical reaction when there is a steady state with no change in concentrations.
So the answer is "When the concentrations of reactants and products are constant."
Which type of star has the greatest temperature on the HR diagram? Question 7 options: Red Supergiants Main Sequence White Dwarfs Red Giants
Answer:
Red supergiant
Explanation:
Their core is the hottest.
plz mark me as brainliest.
A 2.76 g ingot of silver metal absorbs 78 J of energy. What is the final temperature of the metal if it is initially at 47 C?
Answer:
The initial temperature of the ... What is the specific heat capacity of silver metal if 55.00 g of the metal.
Explanation:
1
According to the text, what is reduction?
which is the correct answer
Answer:
3
Explanation:
Answer:
3. 0.50 mol
Explanation:
so2+o2 = so3 método de tanteo
Answer:
I dont understand
Explanation:
818191919
The pressure of a gas is 750 torr when its volume is 400. ml. Calculate the
pressure in atm if the gas is allowed to expand to 600.0 mL at a constant
temperature.
a. 0.66 atm
b. 1.5 atm
c. 500. atm
d. 1130 atm
Answer:
a. 0.66 atm
Explanation:
Pi = 750 torr = 0.99 atm. Pf = ?
Vi = 400 ml Vf = 600ml
Using PiVi = PfVf
Then 400ml × 0.99atm = Pfatm × 600ml
Solving for Pf, we have,
Pf = (400ml × 0.99atm)/600ml
Pf = 0.66atm