5. How many kJ of energy are required to change 1.00 m^3 of pure water by...

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Chemistry

5. How many kJ of energy are required to change 1.00 m^3 of purewater by 1.0C? Assume a perfect system. The specific heat of thewater is 4.184 J/gC. The density of water is 1.000 g/mL.
6. 2.500 grams of metal X (molar mass 65.39 g/mole) was reactedwith 100.0 mL of a 1.500 M HCl solution in a coffee cupcalorimeter. The temperature went from 12.50 C to 40.50 C.Determine the reaction enthalpy per mole of metal X. The specificheat of the solution is 4.184 J/ gC. Assume a solution density of1.00 g/mL and a perfect system.
7. 20.12 grams of butane, C4H10, was combusted with oxygen in abomb calorimeter. The temperature of .500 kg of water went from5.00 C to 25.89 C. The specific heat of the water is 4.184 J/gC.Assume a solution density of 1.00 g/mL. Determine the heat (kJ)evolved per mole of butane. Assume a perfect bomb calorimeter.

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4.4 Ratings (667 Votes)

Answer 5 We are given volume 100 m3 t 10 oC First we need to convert the volume m3 to cm3 We know m3 10106 cm3 1 cm3 1 mL So volume 10106 mL We are given density 100 gmL So mass of water 10106 g We know formula for See Answer

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