Question

Calcium oxide (CaO) is the major component of cement mix. Manufacturers produce this compound by decomposition of calcium hydroxide (Ca(OH)2), shown below. Using the reaction enthalpy, how many kJ of energy is required to produce 945 g of CaO by this process? Show the calculation. Ca(OH)2 (s) ? CaO (s) + H2O (g) ?Hrxn = +108.5 kJ

          Calcium oxide (CaO) is the major component of cement mix. Manufacturers produce this compound by decomposition of calcium hydroxide (Ca(OH)2), shown below. Using the reaction enthalpy, how many kJ of energy is required to produce 945 g of CaO by this process? Show the calculation.

Ca(OH)2 (s) ? CaO (s) + H2O (g) ?Hrxn = +108.5 kJ

Calcium oxide (CaO) is the major component of cement mix. Manufacturers produce this compound by decomposition of calcium hydroxide (Ca(OH)2), shown below. Using the reaction enthalpy, how many kJ of energy is required to produce 945 g of CaO by this process? Show the calculation.

Ca(OH)2 (s) ? CaO (s) + H2O (g) ?Hrxn = +108.5 kJ

Added by Christopher P.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Ronald Prasad

05/30/2022

Step 1

Given: - Molar mass of CaO = 56.1 g/mol - Mass of CaO = 945 g Number of moles = Mass / Molar mass Number of moles = 945 g / 56.1 g/mol Number of moles = 16.85 mol Show more…

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Calcium oxide (CaO) is the major component of cement mix. Manufacturers produce this compound by decomposition of calcium hydroxide (Ca(OH)2), shown below. Using the reaction enthalpy, how many kJ of energy is required to produce 945 g of CaO by this process? Show the calculation. Ca(OH)2 (s) → CaO (s) + H2O (g) ΔHrxn = +108.5 kJ