Homework Help: chem

Posted by mel on Friday, November 16, 2007 at 4:13pm.

a 2.747g sample of manganese metal is reacted with excess HCl gas to produce 3.24L of H2 at 366K and .927atm and a manganese chloride compound(MnCl0. What is the formula of the manganese chloride compound produced in the reaction?

chem - DrBob222, Friday, November 16, 2007 at 4:21pm
I hope you made a typo and the (MnCl0 you wrote you intended to be (MnCl). Otherwise, where is the oxygen coming from?
- chem - mel, Friday, November 16, 2007 at 4:23pm
  i did have a typo sorry it is MnCl
chem - DrBob222, Friday, November 16, 2007 at 4:52pm
Convert g Mn in the reaction to mols.

Use PV = nRT to calculate mols H2.

Use those two numbers to determine the formula. You should obtain MnCl2.
- chem - DrBob222, Friday, November 16, 2007 at 5:10pm
  Scratch that answer of MnCl2. It may not be that at all.

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