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mario62 [17]
4 years ago
8

The chemical standard for the quantity of a mole is based on which substance?

Chemistry
1 answer:
alexandr402 [8]4 years ago
3 0
A mole is mean the atomic number of 12 grams of carbon 12.
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If 9.2 g of calcium react completely with excess aluminum chloride how many grams of aluminum would be produced?
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Explanation:

3Ca(s) + 2AlCl3(aq) -> 3CaCl2(aq) + 2Al(s)

According to the question, Ca is the limiting reactant.

Therefore, we equate Ca to Aluminium which is the product whose mass we want to find

Molar mass of Ca- 40g/mol

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9.2 --> x

x = 9.2×2×27= 496.8÷120=4.14

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