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olganol [36]
3 years ago
9

How much water, in grams, can be made from 1.03 x

4}" alt="10^{24}" align="absmiddle" class="latex-formula"> hydrogen molecules? Answer in units of g.
Chemistry
1 answer:
krok68 [10]3 years ago
5 0

Answer:

30.8 g of water are produced

Explanation:

First of all we need the equation for the production of water:

2H₂ + O₂ → 2H₂O

2 moles of hydrogen react with 1 mol of oxygen in order to produce 2 moles of water.

As we assume, the oxygen in excess, we determine the moles of H₂.

1.03ₓ10²⁴ molecules . 1 mol/ 6.02ₓ10²³ molecules = 1.71 moles

Ratio is 2:2, so 1.71 moles will produce 1.71 moles of water

Let's convert the moles to mass: 1.71 mol . 18g / 1mol = 30.8 g of water are produced

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