1. What is the morality of a solution in which 1.50 x 10^2g (10 to power of 2) of Magnesium Nitrate, Mg(NO3)2, are dissolved in 400.0g of warm water? 2. How many grams CaCl2 are needed to make a solution a concentration of 3.0 m from 2.25 kg of water? 3. What is the molality of a solution made from 1.56 moles of KCI and 1.22 kg of water at 200°F? 4. For the reaction KOH+HCB--> H2O+KCN, what volume of HCN at 2.00 M would be required in order to make 33.0 g of KCN, when there is more HCN than needed?
1. What is the morality of a solution in which 1.50 x 10^2g (10 to power of 2) of Magnesium Nitrate, Mg(NO3)2, are dissolved in 400.0g of warm water? 2. How many grams CaCl2 are needed to make a solution a concentration of 3.0 m from 2.25 kg of water? 3. What is the molality of a solution made from 1.56 moles of KCI and 1.22 kg of water at 200°F? 4. For the reaction KOH+HCB--> H2O+KCN, what volume of HCN at 2.00 M would be required in order to make 33.0 g of KCN, when there is more HCN than needed?
Chapter7: Solutions And Colloids
Section: Chapter Questions
Problem 7.45E
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Transcribed Image Text:Question:
1. What is the morality of a solution in which 1.50 x 10^2g (10 to power of 2) of Magnesium Nitrate, Mg(NO3)2, are
dissolved in 400.0g of warm water? 2. How many grams CaCl2 are needed to make a solution a concentration of 3.0
m from 2.25 kg of water? 3. What is the molality of a solution made from 1.56 moles of KCI and 1.22 kg of water at
200°F? 4. For the reaction KOH+HCB--> H2O+KCN, what volume of HCN at 2.00 M would be required in order to
make 33.0 g of KCN, when there is more HCN than needed?
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