Problem: Exactly 10 mL, of gas A (MM = 15.0 g/mol) effuse through an opening in 2.0 sec. Exactly 10 mL of gas B effuse through the same opening in 8.0 sec. What is the molar mass of gas B? a) 60 g/mol b) 480 g/mol c) 240 g/mol d) 120 g/mol

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Exactly 10 mL, of gas A (MM = 15.0 g/mol) effuse through an opening in 2.0 sec. Exactly 10 mL of gas B effuse through the same opening in 8.0 sec. What is the molar mass of gas B?

a) 60 g/mol

b) 480 g/mol

c) 240 g/mol

d) 120 g/mol

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