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Problem: Calculate the density of CH4 gas at STP.
How to solve the problem: Density is mass over volume. (D = M/V), this is what we need to find.
Information you will need:
Molecular weight of CH4 = 16.05 g/mol
STP = Pressure (P) = 1 atm (unit of pressure) and Temperature (T) à 273 K (unit of temperature)
Use the ideal gas law. PV = nRT
n = mass/ mw (molecular weight- "The molecular weight is essentially the same thing as the molar mass except that, as the name implies, it refers to molecules rather than just elements. The molar mass and molecular weight is typically given in units of grams per mole." - Answers.com)
n = unit of mass
V = unit of volume
PV = (mass/mw) RT
Steps:
Re-arrange the ideal gas law equation, so that you get M/V (which is density).
Mass/V = mw (molecular weight) x P/ RT
Mass/V = (16.05 g/mol) x 1 atm / [0.08206 (L)(atm)/ (mol)(K)] (273 degrees K)
Because of the gas law constant, atm (unit of pressure), K (unit of temperature) and mol (numerical unit) cancel out, and we are left with units of grams per L (unit of volume), which is what we want. Thus, our answer will be in units of g/L.
Plug the equation into your scientific calculator.
I got 7.16 x 10^-1 g/L
Wiki User
∙ 11y ago
Wiki User
∙ 14y agothe density of methane is 0.717 kg/cubic metre
Wiki User
∙ 13y agoUse PM = DRT
so 1atm * 30.08 molecular mass = D * .0821 constant * 273
D = 1. 34 g/L
Wiki User
∙ 7y agoAt STP, one moles will occupy 22.4 liters.
Wiki User
∙ 11y ago1.34
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What volume does 1 mole of gas particles occupy at stp?
molar volume
What is a volume in liters of one mole of gas at STP first letter is a c?
Not sure what you mean by "first letter is a c", but the volume of one mole of an ideal gas at STP is 22.4 Liters.
What is the volume at STP of a 49.6 gram sample of acetylene gas?
Acetylene is C2H2, with a molar mass of 26g/mol. 49.6g of it = 1.9 moles. At STP, 1 mole of any gas occupies a volume of 22.4 liters, so 1.9 moles at STP would have a volume of 42.56 liters.
What volume in milliliters will 0.00919 g H2 gas occupy at STP?
The volume is 102 mL.
What is the volume in milliliters of 0.0100 mol of ch4 gas at stp?
One mole has a volume of 22.4l.So the volume is 224ml
What volume will 3.56 moles of methane occupy at STP?
This volume is 79,79 litres.
How many grams of methane gas CH4 are contained in a volume of 144 liters at STP?
One mole has amass of 16g.There are 6.428mol.Its mass is 102.85g
How many moles of methane are presentin 5.6L of the gas at stp?
0.25 moles
What does avagadros law say about a gas at STP?
1 mol of any gas has a volume of 22.4 L at STP
What is meant by a volume of STP?
Most commonly, this refers to the volume of a gas at Standard conditions of Temperature and Pressure (often abbreviated, STP). This standard allows accurate comparisons of volumes. The volume of a gas (any gas) at STP is 22.4 liters per mole.
What does avogadros law say about a gas at STP?
1 mole of gas at STP occupies 22.4 liters.
How do i calculate the volume of 41.6 mol of a methane gas at STP.?
The volume of any gas at STP is 22.4 liters/mole. Thus, 41.6 moles x 22.4 L/mole = 931.84 liters, or932 liters (to 3 sig figs).
What volume does 0.685 moles of gas occupy at stp?
The volume is approx. 15,35 litres.
What volume does 1 mole of gas particles occupy at stp?
molar volume
What is a volume in liters of one mole of gas at STP first letter is a c?
Not sure what you mean by "first letter is a c", but the volume of one mole of an ideal gas at STP is 22.4 Liters.
Does gas possess definite volume at a definite temperature?
Of course. But at STP, any gas has a standard volume of 22.4 Liters.
A chemical reaction produces 0.884 mol of H2S gas What volume will that gas occupy at STP?
The volume is 22,1 L.
