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Chemistry
Stoichiometry
Mass calculations
a 7.83g sample of hydrocyanic acid contains 0.290g and 4.06g of nitrogen. Find the mass of carbonin a sample of HCN with a mass of 3.37g.
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a 7.83g sample of hydrocyanic acid contains 0.290g and 4.06g of nitrogen. Find the mass of carbonin a sample of HCN with a mass
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Some thing is omitted in this problem.
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A 78.9g sample of HCN contains 0.290g of H and 4.06g of N. Find the mass of carbon in a sample of HCN with a mass of 3.37 g
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%H = 0.290/78.9*100 = ? %N = 4.06/78.9*100 = ? %C = 100-%H-%N = ? Then mass C in 3.37 g sample HCN =
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See my response above.
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Consider 1.00 L of the buffer system that contains 0.200 M hydrocyanic acid(HCN) and 0.150 M sodium cyanide (NaCN). The pKa of
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