Give me number of significant figures in the number 40
1 answer:
1 significant figure, because there is no decimal after the zero the zero doesn't count.
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A.)Calculate the mass of ammonium sulfate that would be obtained by reacting with ammonia acid.
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Explanation:
ncl2 = 454.4x1/(71.0 g/mol) = 6.40 mols cl2
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