Question

How much water, in grams, can be made from

2.44 × 10^24 hydrogen molecules?
Answer in units of g.

Answer 1

`m_(H_2O)=73.0gH_2O`

Step-by-step explanation:

Hello there!

In this case, since the formation of water from hydrogen and oxygen is:

`2H_2+O_2\rightarrow 2H_2O`

Whereas we find a 2:2 mole ratio of hydrogen to water. In such a way, by using the Avogadro's number, the aforementioned mole ratio and the molar mass of water (18.02 g/mol), we obtain the following grams of water product:

`m_(H_2O)=2.44x10^(24)molec*(1molH_2)/(6.022x10^(23)molec)*(2molH_2O)/(2molH_2)*(18.02gH_2O)/(1molH_2O)\\\\ m_(H_2O)=73.0gH_2O`

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