1.Calculate the amount of water at its boiling point that would be vaporized by
ID: 1054153 • Letter: 1
Question
1.Calculate the amount of water at its boiling point that would be vaporized by 152.0 calories.2.Calculate the amount of gasoline at its boiling point that would be vaporized by 152.0 calories.
3. how much heat required to convert 42.6g of ice at 0 degree to steam at 100 degree 4.a 15.6 gam sample of an unknown metal, initially at 225 degree, heated 100.0g of water from 21.2 degree to 25.3 degree upon being submerged in the water. determine the specific heat of the unknown metal, given that the specific heat of water is 4.184 1.Calculate the amount of water at its boiling point that would be vaporized by 152.0 calories.
2.Calculate the amount of gasoline at its boiling point that would be vaporized by 152.0 calories.
3. how much heat required to convert 42.6g of ice at 0 degree to steam at 100 degree 4.a 15.6 gam sample of an unknown metal, initially at 225 degree, heated 100.0g of water from 21.2 degree to 25.3 degree upon being submerged in the water. determine the specific heat of the unknown metal, given that the specific heat of water is 4.184
2.Calculate the amount of gasoline at its boiling point that would be vaporized by 152.0 calories.
3. how much heat required to convert 42.6g of ice at 0 degree to steam at 100 degree 4.a 15.6 gam sample of an unknown metal, initially at 225 degree, heated 100.0g of water from 21.2 degree to 25.3 degree upon being submerged in the water. determine the specific heat of the unknown metal, given that the specific heat of water is 4.184
Explanation / Answer
Q1.
water at 100°C will be vaporized with
Q = 152 calories
Q = 152 cal * 4.184 J/cal = 635968 J
Hvaporization = 44.0 kJ/mol
MW of Water = 18 g /mol
so..
Hvap = 44 kJ / mol * 1 mol / 18g = 2.44444 kJ/g = 2444.44 J/g
so..
mass = Q/Hrxn = 635968 /2444.44 = 260.169 grams of water will vaporize
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