The volume occupied by 1.58g of a gas at S.T.P is 500cm³. What is the relative molecular mass of the gas? [ G.M.V at S.T.P = 22.4dm³]
A. 28
B. 32
C. 44
D. 71
Correct Answer:
Option D = 71
Explanation
500cm³ of the gas weighed 1.58
: 22400cm³ of the gas weight
[22400 X 1.58g] ÷ [ 500 ]
= 71
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![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]")