Part A A calorimeter contains 18 0 mL of water at 13 5C When2 30 g o...

Part A: A calorimeter contains 18.0 mL of water at 13.5âˆ˜C. When 2.30 g of X...

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Chemistry

Part A: A calorimeter contains 18.0 mL of water at 13.5âˆ˜C. When2.30 g of X (a substance with a molar mass of 69.0 g/mol) is added,it dissolves via the reaction X(s)+H2O(l)â†’X(aq) and the temperatureof the solution increases to 30.0âˆ˜C. Calculate the enthalpy change,Î”H, for this reaction per mole of X. Assume that the specific heatof the resulting solution is equal to that of water [4.18J/(gâ‹…âˆ˜C)], that density of water is 1.00 g/mL, and that no heat islost to the calorimeter itself, nor to the surroundings. Part B:the reaction C12H22O11(s)+12O2(g)â†’12CO2(g)+11H2O(l) in which 10.0 gof sucrose, C12H22O11, was burned in a bomb calorimeter with a heatcapacity of 7.50 kJ/âˆ˜C. The temperature increase inside thecalorimeter was found to be 22.0âˆ˜C. Calculate the change ininternal energy, Î”E, for this reaction per mole of sucrose.

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Part A18 ml water 18 gm density of water 1gmml 18 gm 230 gm 2030 gmT 30 135 165 0 Cq mass of solution specific heat ofH2OlT 2030 418 165q 1400091 Jmolar mass of X 69gmmole then 230 gm 23069 003333moleH See Answer

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