What is the volume at STP of 2.66 mol of methane gas?

2 Answers
Jul 29, 2016

Answer:

#V= 59.6L#

Explanation:

Because we are at standard temperature and pressure and are given only one set of conditions, we have to use the ideal gas law equation:
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I should mention that the pressure does not always have units of atm, it depends on the units of pressure given in the gas constant.

List your known and unknown variables.

#color(purple)("Knowns:"#
- Number of moles
- Temperature
- Pressure

#color(blue)("Unknowns:"#
Volume of #CH_4(g)#

At STP, the temperature is 273K and the pressure is 1 atm.

Let's rearrange the equation to solve for V:

# (nxxRxxT)/P#

#V = (2.66cancel"mol"xx0.0821Lxxcancel(atm)/cancel(molxxK)xx273cancelK)/(1cancel(atm)#

#V = 59.6 L#

Aug 6, 2016

Answer:

Because the temperature and pressure are given as STP, all that is need is to use the molar volume.

Explanation:

1 mole = 22.4 liters.

so # 2.66 moles / 1.00 mole =

 #V/ 22.4#

2.66 x 22.4 = 59.58 liters.