5) Converting liquid water to solid ice releases 1.44 kcal/mol. How many kilocalories are absorbed by melting 50 grams of ice?
When liquid water is converted to ice, it releases 1.44kcal/mol
When ice is converted to liquid water it absorbs 1.44kcal/mol
Moles of ice = Mass of ice / Molar Mass of ice
Moles of ice = 50g / 18 g/mol
Moles of ice = 2.78 mol
1 mol of ice needs 1.44kcal of energy for it to melt
2.78 mol of ice needs (1.44 x 2.78) kcal of energy for it to melt
2.78 mol of ice needs 4 kcal of energy for it to melt
4 kcal is absorbed
5) Converting liquid water to solid ice releases 1.44 kcal/mol. How many kilocalories are absorbed by...
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