Calculate the formula mass of a gas if 0.2091 g of the gas takes up 150.2...

Question

Question

Calculate the formula mass of a gas if 0.2091 g of the gas takes up 150.2 mL at 90.7 °C and 0.8 atm.

Hint: Remember to convert mL to L and °C to K, R = 0.08206 L·atm/mol·K

Hint: Answer includes 2 decimal places.

science chemistry

Answer 1

Answer #1

Using ideal gas equation

PV = nRT

0.80 × 0.1502 =( 0.2091/M) × 0.08206×363.7

M = 51.94 g/mol

So, formula mass of gas = 51.94

Answer 2

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