Asked by Lindsey

I need to convert 0.17mg of NaCl to formula mass units. How would I go about that?
Answered by DrBob222
0.17mg = 1.7E-4g
formula mass units = grams/formula mass.
Answered by Lindsey
The answer I got is 2.9X10^-6. I converted 0.17mg to 0.00017g and the divided this number by the formula mass, which would be 23+35.45=58.45g/mol NaCl.
Is my math wrong? The computer says it's not the right answer.
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