Posted by john on Sunday, April 20, 2008 at 12:34pm.
a)because reactions occur by mols.
b) You have the equation.
Convert g Na to mols.
Convert mols Na to mols H2 gas using the coefficients in the balanced equation.
Convert mol H2 to molecules remembering that 1 mol of a gas contains 6.02 x 10^23 molecules. Post your work if you need addition help.
i still dont get what to do for b
John--I have worked several of these problems for you over the last 2-3 weeks. You need to learn to do these. I gave you instructions in my first response. Tell me what it is about the first step; i.e., convert g Na to mols Na.
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