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Questions and Answers
What is the correct molarity of a solution containing 0.225 moles of sodium chloride in 2.80 liters?
What is the correct molarity of a solution containing 0.225 moles of sodium chloride in 2.80 liters?
- 0.320 M
- 0.0406 M
- 0.100 M
- 0.0804 M (correct)
In Problem 2, what is the molar mass of sodium chloride?
In Problem 2, what is the molar mass of sodium chloride?
- 35.45 g/mole
- 22.99 g/mole
- 45.21 g/mole
- 58.44 g/mole (correct)
What is the correct molarity of a solution with 158 grams of sodium chloride in a volume of 2.50 liters?
What is the correct molarity of a solution with 158 grams of sodium chloride in a volume of 2.50 liters?
- 3.00 M
- 0.63 M
- 1.08 M (correct)
- 0.125 M
How many moles of sodium chloride are in a solution containing 298 grams in a volume of 175 milliliters?
How many moles of sodium chloride are in a solution containing 298 grams in a volume of 175 milliliters?
What is the correct molality of a solution with 298 grams of sodium chloride in a solvent weighing 1.20 kilograms?
What is the correct molality of a solution with 298 grams of sodium chloride in a solvent weighing 1.20 kilograms?
What is the molarity formula based on?
What is the molarity formula based on?
How is the molar mass of a substance calculated?
How is the molar mass of a substance calculated?
In the molecular formula N2 O5, what is the molar mass of this substance?
In the molecular formula N2 O5, what is the molar mass of this substance?
How can the moles of a substance be determined if given the grams of the substance?
How can the moles of a substance be determined if given the grams of the substance?
What does successful problem solving in chemistry require?
What does successful problem solving in chemistry require?
What is the molality of a solution containing 298 grams of sodium chloride in a solvent weighing 375 grams?
What is the molality of a solution containing 298 grams of sodium chloride in a solvent weighing 375 grams?
When preparing solutions in a laboratory, which concentration unit is typically used?
When preparing solutions in a laboratory, which concentration unit is typically used?
What is the drawback of using molarity as a concentration unit?
What is the drawback of using molarity as a concentration unit?
Which technique would most likely require the use of molality over molarity?
Which technique would most likely require the use of molality over molarity?
How does a change in temperature affect molality compared to molarity?
How does a change in temperature affect molality compared to molarity?
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