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Ch.3 - Molecules, Compounds & Chemical Equations

Chapter 3, Problem 96b

From the given molar mass and empirical formula of several compounds, find the molecular formula of each compound. b. CCl, 284.77 g/mol

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Hi everyone today, we have a question telling. A C H 20. Has a molar mass of 180.16 g per mole determine the molecular formula of this compound. So we need to find the mass of CH 20. So we have our carbon Which has a mass of 12.01. And then we have our hydrogen, which has a mass of 1.01 times two Equals 2.02. Then we have our oxygen. We have one of them and it has a molar mass of 16. So that gives us a total of 30.02. And now we want to take our Mueller mask that was given to us the .16 g per mole And divided by our 30.02. And that gives us six. So now we need to multiply everything in our empirical formula by six. And that gives us C six h. 12 oh six. And that is our molecular formula. Thank you for watching. Bye.