A. 0.89 mol
B. 1.90 mol
C. 3.80 mol
D. 5.70 mol
Correct Answer:
Option A – 0.89 mol
A given amount of gas occupies 10.0dm³ at 4atm and 273°C. The number of moles of the gas present is [Molar volume of gas at s.t.p = 22.4dm³]
![The mass of 800cm³ of a gas X at s.t.p. is 1.0g. What is the molar mass of X? [1 mole of a gas at s.t.p occupies 22.4dm³]](https://erudites.ng/wp-content/plugins/contextual-related-posts/default.png "The mass of 800cm³ of a gas X at s.t.p. is 1.0g. What is the molar mass of X? [1 mole of a gas at s.t.p occupies 22.4dm³]")
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