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emmycherry09

Answer: 12.61 g of H2O

Explanation:

0.700 mol H2O  x  __18.016 g__  =  12.6112 g of H2O

                                 1 mol H2O

Personally, I would round to 12.61 g of H2O, but round to however many significant figures asked for.

My chemistry teacher gave us this map (image attached) to teach us how to do conversions. Just follow the map. I think it's pretty straight forward. I hope this helps.

Ver imagen emmycherry09
boffeemadrid

The mass of the given amount of moles of water is required.

The mass of water is [tex]12.61\ \text{g}[/tex]

Moles of water = 0.7

Molar mass of water [tex](H_2O)[/tex] = 18.015 g/mol

Mass of object is given by

[tex]m=\text{Moles of the sample}\times \text{Molar mass of the compound}[/tex]

[tex]\Rightarrow m=0.7\times 18.015[/tex]

[tex]\Rightarrow m=12.61\ \text{g}[/tex]

The mass of water is [tex]12.61\ \text{g}[/tex]

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