Chemistry, asked by aishaayo380, 9 months ago

4. When 5g of liquid water was formed by burning hydrogen gas. -65kJ of heat was given off. Calculate the standard heat of formation of water.

Answers

Answered by rottingham

2

Answer: 234 kJ/mol

Explanation:

Moles of water formed = (mass/ Molecular Mass)

= 5/18 moles

5/18 moles of water released -65kJ of energy

SO, 1 mol of water released = 65*(18/5) = 234kJ/mol

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