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Answer:
0.3656 g/ml of unknown gas
Step-by-step explanation:
Given:
rate of effusion of unknown gas = 2.3ml/min
rate of effusion of known gas = 19.5 ml/min
density of known gas = 3.1 g/ml
Required: density of unknown liquid
Sol'n : use ratio and proportion
(19.5 ml/min ÷ 3.1 g/ml) = (2.3ml/min ÷ density of unknown gas)
density if unknown gas = 0.3656 g/ml