Question

SAQ : What is the volume of 11 g of CO2 at STP?

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Answer

Question

What is the volume of 11 g of CO2 at STP? [Ans. 5.6 L]

Answer

Given mass = 11 g

Molar mass = 12 + 16 × 2 = 44

Step 1: Calculation of number of moles

Moles of CO2 = Given\ mass \over Molar\ mass

= 11 \over 44  = 0.25 mol

Step 2: Calculation of number of moles

volume of CO2 = number of moles of CO2 × molar volume at STP

= 0.25 × 22.4 = 5.6 L

Therefore, the volume of 11 g of CO2 at STP is 5.6 L.

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