Answer:
The volume of the gas will be 78.31 L at 1.7 °C.
Explanation:
We can find the temperature of the gas by the ideal gas law equation:
[tex] PV = nRT [/tex]
Where:
n: is the number of moles
V: is the volume
T: is the temperature
R: is the gas constant = 0.082 L*atm/(K*mol)
From the initial we can find the number of moles:
[tex] n = \frac{P_{1}V_{1}}{RT_{1}} = \frac{1 atm*62.65 L}{(0.082 L*atm/K*mol)*(0 + 273)K} = 2.80 moles [/tex]
Now, we can find the temperature with the final conditions:
[tex] T_{2} = \frac{P_{2}V_{2}}{nR} = \frac{612.0 mmHg*\frac{1 atm}{760 mmHg}*78.31 L}{2.80 moles*0.082 L*atm/(K*mol)} = 274.7 K [/tex]
The temperature in Celsius is:
[tex] T_{2} = 274.7 - 273 = 1.7 ^{\circ} C [/tex]
Therefore, the volume of the gas will be 78.31 L at 1.7 °C.
I hope it helps you!
Help!!!!!!!! Please
Answer:d stay the same as well
Explanation:
sorry if im
wrong
Lana balanced an equation so that the result was 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr. Which most likely represents the starting equation?
Answer:
C2H3Br + O2 → CO2 + H2O + HBr
Explanation:
The term balancing of chemical reaction equation has a unique meaning in chemistry. What it actually means is to ensure that the number of atoms of each element on the left hand side of reaction equation becomes equal to the number of atoms of the same element on the right hand side of the reaction equation.
When we look at the equation; C2H3Br + O2 → CO2 + H2O + HBr, the number of atoms of each element on the left and right hand sides of the given equation are not the same hence the equation is unbalanced.
If we look at the equation; 2C2H3Br + 5O2 → 4CO2 + 2H2O + 2HBr, the number of atoms of each element on both sides of the reaction equation are now equal, thus the later equation is the balanced version of the former.
Answer:
C2H3Br + O2 → CO2 + H2O + HBr
Explanation:
What form of energy does a monkey hanging on a tree have?
Answer:
Potential energy
Explanation:
Hanging objects have (gravitational) potential energy
Answer:
Explanation:
Every cell in the monkey's body (and ours) is constantly converting the stored solar energy in glucose into work and heat. The work is used to carry on cell processes like growing, reproducing, moving molecules around, and getting rid of waste. The heat is a byproduct of the fuel "burning" process.
Introduction to food chains and food webs
Answer:
All food chains start with the sun, which is the ultimate source of energy for all living organisms on Earth. A food web shows the connections between two or more food chains. A food web shows the connections, or overlaps, between two or more food chains.
Explanation:
What are the materials that good conductors and insulators?
Conductors
Silver
Gold
Copper
Aluminum
Mercury
Steel
Iron
Seawater
Concrete
Mercury
___________________
insulators
Aluminum foil
Glass
Air
Plastic
Rubber
Porcelain
Wood
PLEASE HELP!
See picture
Answer:
See Explanation
Explanation:
The equation of the reaction;
KHSO4(aq) + KOH(aq) -------> K2SO4(aq) + H2O(l)
Number of moles of KHSO4 = 49.6 g/136.169 g/mol = 0.36 moles
Since the reaction is in a mole ratio of 1:1, 0.36 moles of K2SO4 is produced.
Number of moles of KOH = 25.3 g/56.1056 g/mol = 0.45 moles
Since the reaction is 1:1, 0.45 moles of K2SO4 is produced
Hence K2SO4 is the limiting reactant.
Mass of K2SO4 formed = 0.36 moles of K2SO4 * 174.26 g/mol = 62.7 g
So;
1 mole of KHSO4 reacts with 1 mole of KOH
0.36 moles of KHSO4 reacts with 0.36 * 1/1 = 0.36 moles of KOH
Amount of excess KOH = 0.45 moles - 0.36 moles = 0.09 moles
Mass of excess KOH = 0.09 moles * 56.1056 g/mol = 5 g of excess KOH
11. What is the force between two electrons
Answer:
The attractive force between the electrons and the nucleus is called the electric force.
Explanation:
Answer:
Electric force
Explanation:
The attractive force between the electrons and the nucleus is called the electric force.Experiments have shown that the electric force between two objects is proportional to the inverse square of the distance between the two objects.
You're provided a 0.50 M solution of HCl. How many moles of HCl are present in 25 ml of this solution?
Answer:
0.0125 moles of HCl
Explanation:
(0.50 mol/L)(0.025 L) = 0.0125 moles of HCl
The initial temperature of a reaction is 24.7 °C. The temperature decreases by 3.2 °C. What is the new temperature of the reaction? Someone help
Answer:
I think it's 21.5 *C
Explanation:
If the rate-determining step limits the speed of a reaction, which statement is correct?
A.
Even if one or more fast steps occur in a reaction, the overall reaction cannot proceed any faster than the slowest step.
B.
If the first step is slow and the second step is fast, then the second step should determine the rate of the overall reaction.
C.
Increasing the concentration of a molecule that occurs in a fast step after a slow step will increase the overall rate of the reaction.
D.
In a unimolecular reaction where A decomposes to B and C, the rate of the reaction will decrease if the concentration of A is increased.
Answer:
A:Even if one or more fast steps occur in a reaction, the overall reaction cannot proceed any faster than the slowest step.
Answer:
A
Explanation:
Edge 2020
hope this helps :)))))
An object has an actual mass of 34.85 grams. Johnny measures the object to have a mass of 35 grams after rounding. What is Johnny's percent error of the object?
Answer:
1.15.........................
help me get this right no links
Answer:
The gravitational pull of the moon and the rotational force of the Earth cause tides to rise and fall across the planet. The species living in coastal areas most affected by changing tides have unique ways of surviving.
So, the answer is B.
2. All metals are good conductors because their electrons can
move easily through the metal.
What do you think will be true about electrons in an insulator?
Help me please
This is for my science homework
Answer: An insulator would be made out of material unable to conduct electricity due to lack of fluid movement for electrons, such as rubber. Rubber properties not only prevents them from freely moving, but also helps electrons stay tightly bound to each other.
Hope this helps ^_^
Help please !!!!!!!!!!!!
the answer to your question is a increase
Al +CUO=Al203 +Cu
type the coefficients to balance the equation.
Answer:
2AL + 3CUO = AL2O3 + 3CU
hope it helps
How many grams are in 5.4 moles of K2SO4
Answer:
The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles K2SO4, or 174.2592 grams.
Explanation:
The potassium sulphate( [tex]K_{2} SO_{4}[/tex] )contain 940.95 gram in 5.4 moles.
What is mole?A mole is described as the quantity of a material that includes precisely 6.02214076 X [tex]10^{23}[/tex] of the substance's elementary constituents.
Given data:
Mole = 5.4
Molar mass = 174.25 g/mol
Mass = ?
Mole can be calculated by using the formula:
Mole = mass / molar mass
Put the value of given data in above equation.
Mass = Mole × molar mass
Mass = 5.4 mole × 174.25 g/mol
Mass = 940.95 gram
Therefore, there are 940.95 gram in [tex]K_{2} SO_{4}[/tex]
To know more about mole.
https://brainly.com/question/26416088
#SPJ3
how does H3O+ and OH- relate to acids, bases, and the pH scale?
Answer:
For pure water, the values of [H3O+] and [OH-] are equal and thus their values are both 1.0 x 10-7. If there is an equal amount of acid and base present in any solution, the solution is called "neutral" and the pH of the solution is 7. ... The sum of the pH and pOH must always equal 14.
Explanation:
Which influences line form
Answer:
Line form is influenced by how fast we are writing and the pressure and also what writing instrument is used
given a mixture of lead to oxide ammonium chloride and sodium chloride describe how a mixture can be separated to obtain a sample each
Answer:
There are way in separating mixtures of chloride salts such as that of sodium chloride and ammonium chloride. It can be done by crystallization, filtration, and sublimation. The easiest method among the three is separation by sublimation.
Determine the number of atoms that are in 1.15 mol of Cl 2.
Answer:
Explanation: I think its 4.91 x 10^25. Im not very sure, i just multipled 1.15 mol by the molar mass of Cl 2, which was 70.9 g. Then I multiplied that by avogadro's number. sorry if im wrong
Convert 623g of Fe to grams
Answer: The answer is 11.15587787626466 or rounded up it will be 11.2 mol.
Explanation: By converting Grams of any element it will be in moles which is grams in philosiphical terms. But by converting Fe(or iron) It is called a Convertment of measurement units.
Which description applies to all atoms of an element? flammable visible under a microscope different alike
Answer:
I think its alike.... Pretty sure actually
What is the concentration of a solution made by dissolving 0.99mol of acetic acid in enough water to make 0.58L of solution?
Answer:
[CH₃COOH] = 1.70 M
Explanation:
When we talk about concentration we can determine Molarity
Molarity determines the moles of solute that are contained in 1L of solution.
In this case our solute is the acetic acid.
M = mol/L
M = 0.99 mol /0.58L → 1.70 M
We can also make a rule of three
In 0.58 L of solution we have 0.99 moles of solute
In 1 L of solution we may have (1 . 0.99) / 0.58 = 1.70 moles
Acetic acid is a weak acid, partially dissociated in water.
CH₃COOH + H₂O ⇄ CH₃COO⁻ + H₃O⁺ Ka
Which of the following best represents the properties of an acid?
Answer:
they r water soluble and sour in taste.hope it helps.
stay safe healthy and happy.
I need the answer by 12❤️
Answer:
answer number 3? ac
Explanation:
what happens to the food as it undergoes this stage
The first step in the digestive process happens before we even taste food. Just by smelling that homemade apple pie or thinking about how delicious that ripe tomato is going to be, you start salivating — and the digestive process begins in preparation for that first bite.
Almost all animals have a tube-type digestive system in which food:
enters the mouth
passes through a long tube
exits the body as feces (poop) through the anus
Along the way, food is broken down into tiny molecules so that the body can absorb nutrients it needs:
Protein must be broken down into amino acids.
Starches break down into simple sugars.
Fats break down into into fatty acids and glycerol.
Explain the Anchoring Phenomenon (summary)
A ball rolls from a to point B the total energy of the ball at point a is the same as the sum of its potentlal Energ and kinetic energy at point B which statement best explains the situation 
Does the half life of oxygen-18 impacts its use ( explain)
Answer:
O-18 is used as a tracer in many hydrologic studies. It is most often used as a component in a mixing-model and hydrograph separation, as O-18 acts conservatively and is applied naturally and uniformly over broad areas. O-18 can be used when different sources (old water/new water) have different isotopic values.
Can someone please help me with this one?
Plants manufacture molecules of glucose and use the glucose as a source of energy.
What percentage (%) does a plant use for itself?
What is this % of energy used for in plants?
Answer:
to my own understanding I think it's 65 percent