calculate the number of moles of each substance in samples with the following masses, (a) 2.4 g of he (b) 250 mg of carbon (c) 15 g of sodium chloride
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11
Answer:
(1) 2.4/4=0.6mol
(2) 250*10^-6/12=2.8*10^-6mol
(3) 15/23=0.65
Explanation:
Answered by
2
Answer:
B
Explanation:
calculate the number of moles of each substance in sample with the following masses
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