Download Name emp./mol. Problems pd. ______ 1. Find the empirical formula

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Name ____________________________ emp./mol. Problems
pd. ______
1. Find the empirical formula for a compound consisting of 63% Mn and 37% O
2. Bicarbonate of soda (sodium hydrogen carbonate) is used in many commercial
preparations. Its formula is NaHCO3. Find the mass percentages (mass %) of Na, H,
C, and O in sodium hydrogen carbonate.
3. What are the mass % of carbon and oxygen in carbon dioxide, CO2?
4. The simplest formula for vitamin C is C3H4O3. Experimental data indicates that the
molecular mass of vitamin C is about 180. What is the molecular formula of vitamin
C?
5. The simplest formula for butane is C2H5 and its molecular mass is about 60. What
is the molecular formula of butane?
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