Question

How much heat in kilojoules is evolved or absorbed in the reaction of 1.00g or Na with H2O?

Answer 1

2 moles Na produce 368.4 kJ heat (the minus sign means exothermic)
1 mole produces 184.2 kJ
1g is = 1/23 mole Na (with molecular mass = 23 g/mol)
1/23 mole produces 184.2/23 kJ = 8 kJ (= answer)

Answer 2

Thank you so much

Answer 3

no problem