1 vanillin is an organic compound containing ch and o, Ask an Expert

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1) Vanillin is an organic compound containing C,H and O. Combustion of 1.05g of vanillin produces 2.43g CO2 and 0.50 of H2O. The Molar mass of vanillin is 152.16g/mol. What is the molecular formula for vanillin?

2) Copper has two isotopes, copper-63 and copper-65. Copper-63 has an abundance of 69.17% and a mass of 62.9296Amu.

A. What is the percent abundance of copper-65?
B. What is the mass of copper-65 ?

3)how many water molecules are in 3.00g?

4) 2C8H18 + 25 O2 = 16 CO2 + 18 H2O
A. How many moles of oxygen are needed to fully oxidize 3.90 of C8H18?

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Category:- Chemistry
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