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Sagot :
Answer:
I know this is very late I am sorry, but
I believe your answer would be C) 4.00 mol.
Correct me if I am wrong.
Explanation:
9040 divided by 2260= 4
0.222 moles of water released 9040 J of energy.
The heat of vaporization is defined as the heat required to convert 1 g of a substance from liquid to vapor. We are told that the heat of vaporization of water is 2260 J/g.
Hence;
1g of water releases 2260 J of heat
xg of water releases 9040 J of heat
x = 1g × 9040 J /2260 J
x = 4 g
1 mole of water contains 18 g
x moles of water contains 4 g
x = 1 mole × 4 g/18 g
x = 0.222 moles
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