How many moles of hydrogen gas are contained in 21.3 l at stp?

To get the moles of hydrogen gas, we will use the molar volume equation, where 1 mole of any ideal gas occupies a volume of 22.4 L. This was derived using the ideal gas law equation;

PV=nRT , where

P - Pressure of the gas

V - Volume occupied by the gas 

n - number of moles of gas present

R - universal gas constant, usually given as 0.0821atm⋅Lmol⋅

T - absolute temperature of the gas

STP conditions are defined as a pressure of 1 atm and a temperature of 273.15 K.

PV=nRT

Here, the moles of hydrogen gas was contained in 21.3 L at STP. To determine the number of moles of hydrogen gas, the 21.3 L must be divided to 1 mole/22.4 L and we then get the moles of hydrogen gas, which is 0.951 moles. 

Is the first question on the pretest. 

1. Which artists produced work during the Italian Renaissance? Select all that apply.