What is the total sample size (in grams) for a sample of aluminum acetate which contains...
What is the total sample size (in grams) for a sample of aluminum acetate which contains 2.71 g of oxygen?
What is the total sample size (in grams) for a sample of ethanol (CH3CH2OH) which contains 2.98 g of oxygen?
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Homework Answers
What is the total sample size (in grams) for a sample of aluminum acetate which contains 2.71 g of oxygen?
Answer :-
Molar mass Al(CH3COO)3 = 204.1 g/mol
moles O = 2.71 g/ 16 g/mol=0.169375
one mole of aluminium acetate contains 6 moles of O
0.169375 / 6 = 0.0282291667
mass = 0.0282291667x 204.1 = 5.7615729235 g
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