Dulcie501 Dulcie501

03-06-2015
Chemistry

Answered

A compound has a gram formula mass of 56 grams per mole. What is the molecular formula for this compound?
(1) CH2 (3) C3H6
(2) C2H4 (4) C4H8

Answer :

stephenlee0912 stephenlee0912

03-06-2015

The answer is (4). Since you are given choices, you just need to calculate the molecular mass of each choice and see which one corresponds to the given molecular mass. The molecular mass of C4H8 is 12.01(4) + 1.01(8) = 48.04 + 8.08 = 56.12g/mole, so rounded to the nearest whole, it's 56 g/mole

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yeskidyes101 yeskidyes101

08-03-2020

Answer: 4

Explanation: check the previous guy answer

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