Can you please help with these problems. Please do it on paper showing work so I can clearly see it and understand it. Thank you so much. Empirical Formula Practice Problems1) A compound is found to have (by mass) 48.38% carbon, 8.12% hydrogen and the restoxygen.What is its empirical formula?2) A compound is found to have 46.67% nitrogen, 6.70% hydrogen, 19.98% carbon and26.65% oxygen. What is its empirical formula?3) A compound is known to have an empirical formula of CH and a molar mass of 78.11g/mol. What is its molecular formula?4) Another compound, also with an empirical formula if CH is found to have a molarmass of 26.04 g/mol. What is its molecular formula?5) A compound is found to have 1.121 g nitrogen, 0.161 g hydrogen, 0.480 g carbon and0.640 g oxygen. What is its empirical formulal (Note that masses are given, NOTpercentages.)6) A compound containing only carbon, hydrogen and oxygen is found to be 48.38%carbon and 8.12% hydrogen by mass. What is its empirical formula?Cip

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1) A compound is found to have (by mass) 48.38% carbon, 8.12% hydrogen and the rest oxygen. What is its empirical formula?

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter10: The Mole

Section10.4: Empirical And Molecular Formulas

Problem 67SSC

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Question

Can you please help with these problems. Please do it on paper showing work so I can clearly see it and understand it. Thank you so much.

Empirical Formula Practice Problems
1) A compound is found to have (by mass) 48.38% carbon, 8.12% hydrogen and the rest
oxygen.
What is its empirical formula?
2) A compound is found to have 46.67% nitrogen, 6.70% hydrogen, 19.98% carbon and
26.65% oxygen. What is its empirical formula?
3) A compound is known to have an empirical formula of CH and a molar mass of 78.11
g/mol. What is its molecular formula?
4) Another compound, also with an empirical formula if CH is found to have a molar
mass of 26.04 g/mol. What is its molecular formula?
5) A compound is found to have 1.121 g nitrogen, 0.161 g hydrogen, 0.480 g carbon and
0.640 g oxygen. What is its empirical formulal (Note that masses are given, NOT
percentages.)
6) A compound containing only carbon, hydrogen and oxygen is found to be 48.38%
carbon and 8.12% hydrogen by mass. What is its empirical formula?
Cip

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