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Oliga [24]
3 years ago
7

A compound with the empirical formula CH2 was found to have a molar mass of approximately 112 g. Write the molecular formula of

the compound.
2Points
Show all your work. Please use correct formatting for subscripts and exponents. The math formula editor makes it easier to show work.
Chemistry
1 answer:
san4es73 [151]3 years ago
6 0

Answer:

C8H10

Explanation:

n (CH2) = 112

n (12 + 1 + 1) = 112

n (14) = 112

n = 8

Molecular Formula: C8H10

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First of all, think the reaction:

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You have to add a 2, in the HCl to get ballanced.

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Notice that volume is in mL, so I must convert to L.

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My limiting reactant is the HCl, for 0.764 moles of Zinc, I need 1.528 (0.764 .2) of HCl, and I only have 0.2 moles.

Ratio between HCl and H₂ is 1:1, so 0.2 HCl make 0.2 moles of gas

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4 0
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slavikrds [6]

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