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1. How many grams of a sample of NaNO3...
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Answer the questions completely with complete calculations.
1. How many grams of a sample of NaNO3 should be dissolved in a150.0 mL of water to give a 0.22 M solution?
2. A certain alcohol contains only three elements C, H & O.Combustion of 50.00 g sample of the alcohol produced 95.50 g of CO2and 58.70 g of H2O. What is the empirical formula of thealcohol?
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1 Let us find first molar mass of NaNO3 Na N O have atomic masses 23 14 16 respectively So molar mass of NaNO3 23 14 16 x 3 85 According to mole concept 85 g of NaNO3 1 mol NaNO3 NaNO3 is strong electrolyte hence 85 g NaNO3 1 M NaNO3 in 1000 mL solution Say A g NaNO3 022 M NaNO3 in 1000 mL solution
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