You threw away two perfectly good numbers for the first two.
80.0/39.997 = 2.000 which rounds to 2.00 to three significant figures (you are allowed 3 from the 80.0).
12.0/74.093 = 0.16196 which rounds to 0.162 to three s.f. (3 s.f. allowed by the 12.0)
The other two are ok.
Could you please tell me if these are right?
How many moles are in the following.
A.) 80.0 g of NaOH I got 2.0 moles.
B.) 12.0 g of Ca(OH)2 I got 0.16 moles.
Write the simplest formula for each of the following compounds.
A.) 0.200 mole Al and 0.600 Cl. I got AlCl3
B.) 0.080 mole Ba, 0.080 mole S, 0.320 mole O. I got BaSO4
2 answers
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