the concentration of a 2.0 M NaOH solution as a mass/volume percent(%). Your answer: 4.0 % (m/v) NaOH solution 2.0 % (m/v) NaOH solution 8.0 % (m/v) NaOH solution 40% (m/v) NaOH solution Quiz 8 Solutions Answers 1) Hydrogen bonds between water molecules Correct Answer: all of the above 2) A solution is made of 85.0 g of water and 5.0 g of NaCl. Correct Answer: The solute is NaCl and the solvent is water. 3) A strong electrolyte is a solute that Correct Answer: dissolves in water as ions only 4) The number of equivalents in 1.0 mole of Fe3+ is Correct Answer: 3 equivalents 5) At 40oC,KI has a solubility of 160 g KI per 100 g of water. How many grams of KI are needed to prepare a saturated solution using 25g of water? Correct Answer: 40 g KI 6) A solution contains 15 g sucrose (table sugar) and 60 g of water. What is the mass/mass % of the sucrose solution? Correct Answer: 20 % (m/m) sucrose solution 7) How many grams of NaOH are needed to prepare 400. mL of a 15%(m/v) NaOH solution? Correct Answer: 60. g NaOH 8) How many mL of a 5.0% glucose solution provide 80.0 g of glucose?
the concentration of a 2.0 M NaOH solution as a mass/volume percent(%). Your answer: 4.0 % (m/v) NaOH solution 2.0 % (m/v) NaOH solution 8.0 % (m/v) NaOH solution 40% (m/v) NaOH solution Quiz 8 Solutions Answers 1) Hydrogen bonds between water molecules Correct Answer: all of the above 2) A solution is made of 85.0 g of water and 5.0 g of NaCl. Correct Answer: The solute is NaCl and the solvent is water. 3) A strong electrolyte is a solute that Correct Answer: dissolves in water as ions only 4) The number of equivalents in 1.0 mole of Fe3+ is Correct Answer: 3 equivalents 5) At 40oC,KI has a solubility of 160 g KI per 100 g of water. How many grams of KI are needed to prepare a saturated solution using 25g of water? Correct Answer: 40 g KI 6) A solution contains 15 g sucrose (table sugar) and 60 g of water. What is the mass/mass % of the sucrose solution? Correct Answer: 20 % (m/m) sucrose solution 7) How many grams of NaOH are needed to prepare 400. mL of a 15%(m/v) NaOH solution? Correct Answer: 60. g NaOH 8) How many mL of a 5.0% glucose solution provide 80.0 g of glucose?
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