Calculate Molar Mass of Gas: 0.6536 g/L @ 37C & 787 torr

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In summary, the molar mass of the gas is 16.0548g/mol and the possible molecular formula is CH4 based on the given density, temperature, and pressure.
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chemistry4all
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Calculate the molar mass of a gas that has a density of 0.6536 g/L at 37C and 787 torr. What do you think the?

My attempt:

I used n= PV/RT and calculated the number of moles to be 16.0548g/mol.

The second part is where I am confused. Anyone help?
 
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  • #2


chemistry4all said:
Calculate the molar mass of a gas that has a density of 0.6536 g/L at 37C and 787 torr. What do you think the?

My attempt:

I used n= PV/RT and calculated the number of moles to be 16.0548g/mol.

The second part is where I am confused. Anyone help?

Second part? Eh?
 
  • #3


oops didnt finish the last sentence. It is "What do you think you think the molecular formula of the gas is?


I think its CH4 because that's the only molecule I can find that has a MM close to 16g.
 

FAQ: Calculate Molar Mass of Gas: 0.6536 g/L @ 37C & 787 torr

What is molar mass?

Molar mass is the mass of one mole of a substance, expressed in grams per mole.

How do you calculate molar mass?

To calculate molar mass, you need to know the mass of the substance and the number of moles present. Then, you can use the formula M=m/n, where M is the molar mass, m is the mass of the substance, and n is the number of moles.

What is the unit of molar mass?

The unit of molar mass is grams per mole (g/mol).

How does temperature affect molar mass?

Temperature has a negligible effect on molar mass. The molar mass of a substance remains constant regardless of the temperature.

How do you convert molar mass to density?

To convert molar mass to density, you can use the formula d=M/V, where d is the density, M is the molar mass, and V is the molar volume. Molar volume can be calculated using the ideal gas law, PV=nRT, where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

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