Top topic this week
Back to FAQs
Related FAQs
Frequently Asked Question
Questions asked by users might not always be phrased in the clearest way.
The chemical formulae for the three compounds are ; rnwax C25H52rnrnEthanol C2H5OHrnrnCoconut oil. C3H5( C18H30O2)3rnrna). Calculate the molar masses of each of these compounds.rnb). For each compound give a balanced equation for its complete combustion in a stream of air.
Accepted Answer
a) Molar Masses:
Wax (C25H52): (25
12.01 g/mol) + (52
1.01 g/mol) = 352.67 g/mol
Ethanol (C2H5OH): (2
12.01 g/mol) + (6
1.01 g/mol) + (16.00 g/mol) = 46.07 g/mol
Coconut Oil (C3H5(C18H30O2)3): (3
12.01 g/mol) + (5
1.01 g/mol) + (3
(18
12.01 g/mol + 30
1.01 g/mol + 2
16.00 g/mol)) = 864.53 g/mol
b) Combustion Equations:
Wax: C25H52 + 38 O2 → 25 CO2 + 26 H2O
Ethanol: C2H5OH + 3 O2 → 2 CO2 + 3 H2O
Coconut Oil: 2 C3H5(C18H30O2)3 + 81 O2 → 54 CO2 + 34 H2O
Articles you might like