Respuesta :
Answer:
333.46 J/g
Explanation:
To convert from kiloJoules per mole to kiloJoules per gram, first we convert to Joules per mole:
6.009 kJ/mol * 1000 = 6009 J/mol
1 mole of water contains 18.02 grams of water, hence:
(1 J/mol) / (1 mol) * (1 mol) / (18.02g)
Therefore:
(6009 J/mol) / (1 mol) * (1 mol) / (18.02g)
= 333.46 J/g
Another way of seeing this is, to convert from Joule per mole to Joules per gram, divide by the number of grams in one mole. In the case of water, it's 18.02 grams in one mole.
Answer:
333.8J/g
Explanation:
Let's convert them separately.
1kJ = 1000J
mole = mass/molar mass
molar mass of water = 18g/mole
mass = mole × 18g/mole
mass = 18g
Overall conversion is
[6.009KJ × (1000J/1KJ)]/[mole × 18g/mole]
6009J/18g
= 333.8J/g
The closest answer is 400.3J/g
