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steposvetlana [31]
3 years ago
11

If you have 730 moles of a gas at 304 Kelvin in a 4.50 Liter container what

Chemistry
1 answer:
vova2212 [387]3 years ago
3 0

Answer:

4046atm

Explanation:

For this question you can use the ideal gas law,

<em />PV=nRT<em />

Where P is pressure, V is volume, n is moles of substance, R is the constant, and T is the temperature.

Because of the units given, R will equal .08026P=4046 atm

<h3>Rearrange the equation to solve for pressure:</h3>

P=\frac{nRT}{V}

Then, plug in the values (I'll be excluding units for simplicity, but they all cancel out for pressure in atm):

P=\frac{(730)(.08206)(304)}{4.5}

This will give you:

P=4046atm

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How is stoichiometry used to calculate energy released when a mass of liquid freezes?
kati45 [8]

Answer:

D. Grams liquid x mol/g x delta Hf​reezing

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to reason that the stoichiometry used to calculate energy released when a mass of liquid freezes, involves the grams of the liquid, the molar mass of the liquid, as given in all the group choices, and the enthalpy of freezing because that is the process whereby a liquid goes solid.

In such a way, we infer that the correct factor would be D. Grams liquid x mol/g x delta Hf​reezing which sometimes is the negative of the enthalpy of fusion as they are contrary processes.

Regards!

6 0
3 years ago
Read 2 more answers
The chemical formula of bromomethane is BrCH3. Which correctly describes the number of atoms of each element in bromomethane?
Anit [1.1K]

The number of atoms of each element :

C : 1 atom

H : 3 atoms

Br = 1 atom

<h3>Further explanation</h3>

Given

Bromomethane-CH₃Br

Required

The number of atoms

Solution

The empirical formula is the smallest comparison of atoms of compound forming elements.  

A molecular formula is a formula that shows the number of atomic elements that make up a compound.  

The number of atoms in a compound is generally indicated as a subscript after the atom

C : 1 atom

H : 3 atoms

Br = 1 atom

Total 5 atoms

4 0
3 years ago
I need help with this question please someone tell me the answer for this
Andrej [43]
Aueyeowosy yo this is my answer

5 0
2 years ago
How many moles are in 50 g of CO2
murzikaleks [220]

Answer:

1.1 mol

Explanation:

n=m/M, where n is moles, m is mass, and M is molar mass.

M of CO2 = 12.01+16.00+16.00 = 44.01g/mol

n=50g/44.01g/mol

n = 1.13610543 mol

n ≈ 1.1 mol

Hope that helps

8 0
2 years ago
An exothermic reaction __________ energy.
qwelly [4]
It releases energy (what I am saying in other words that "D. Releases" would be your answer)
8 0
3 years ago
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