What is the mass of 455 mL of ethane gas,C₂H₆,at STP?

Name: What is the mass of 455 mL of ethane gas,C₂H₆,at STP?
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Question

Quizplus · Accepted Answer

At STP, 1 mole of any gas occupies 22.4 L. The molar mass of ethane (C₂H₆) is 30.07 g/mol. First, convert 455 mL to liters (0.455 L). Then, use the molar volume to find moles: 0.455 L / 22.4 L/mol = 0.0203 mol. Finally, multiply by the molar mass: 0.0203 mol * 30.07 g/mol = 0.611 g.

What Is the Mass of 455 ML of Ethane Gas,C₂H₆,at