Answered

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3. A sample of gas at STP has a volume of 5.0 L. How many
moles of gas are in the sample of gas?
(A) 0.22 mol (B) 5.0 mol (C) 22.4 mol (D) 112 mol
(E) There is not enough information to determine moles of gas.

Sagot :

Answer:

A. 0.22 mol

Explanation:

Use the conversion factor 1 mol / 22.4 L of gas, which is true at STP.

5.0 L • (1 mol / 22.4 L) = 0.22 mol

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