Question

Calculate the volume of 817.5g of CH4 at STP.

Answer 1

Answer:

The volume is 1143,78 L

Explanation:

We use the formula PV=nRT. The conditions STP are 1 atm of pressure and 273K of temperature. We calculate the weight of 1 mol of CH4.

Weight 1 mol CH4= weight C+ (weight H)x4= 12 g + 1 g x4= 16 g/mol

16 g----1 mol CH4

817,5g--x=(817,5gx1 mol CH4)/16g= 51, 1 mol CH4

PV=nRT V=(nRT)/P  

V= (51,1 mol x 0,082 l atm/K mol x 273 K)/1 atm

V= 1143,78 liters