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Questions and Answers
What is the unit of concentration that represents grams of solute per 100 grams of solution?
What is the unit of concentration that represents grams of solute per 100 grams of solution?
- %V/V
- %w/w (correct)
- %w/V
- ppm
What is the concentration unit that represents milliliters of solute per 100 milliliters of solution?
What is the concentration unit that represents milliliters of solute per 100 milliliters of solution?
- ppb
- %V/V (correct)
- %w/V
- ppm
What is the concentration unit that represents grams of solute per 100 milliliters of solution?
What is the concentration unit that represents grams of solute per 100 milliliters of solution?
- %V/V
- mg/mL
- g/L
- %w/V (correct)
What is the unit of concentration that represents milligrams of solute per liter of solution?
What is the unit of concentration that represents milligrams of solute per liter of solution?
What is the concentration unit that represents parts per billion?
What is the concentration unit that represents parts per billion?
A 5 g alloy contains 10 mg of copper. What is the concentration of copper in ppm?
A 5 g alloy contains 10 mg of copper. What is the concentration of copper in ppm?
What is the difference between physical and chemical methods of expressing concentration?
What is the difference between physical and chemical methods of expressing concentration?
How many milligrams of a substance are required to prepare 500 mL of a 2000 ppb solution?
How many milligrams of a substance are required to prepare 500 mL of a 2000 ppb solution?
A 2% w/v solution of a substance means 2 grams of solute per 100 mL of solution.
A 2% w/v solution of a substance means 2 grams of solute per 100 mL of solution.
The physical method of expressing concentration uses chemical units.
The physical method of expressing concentration uses chemical units.
A solution with a concentration of 10 ppm has 10 milligrams of solute per liter of solution.
A solution with a concentration of 10 ppm has 10 milligrams of solute per liter of solution.
In a volume percent (%V/V) solution, the volume of solute is specified per 100 mL of solution.
In a volume percent (%V/V) solution, the volume of solute is specified per 100 mL of solution.
A 5% w/w solution of a substance means 5 grams of solute per 100 grams of solution.
A 5% w/w solution of a substance means 5 grams of solute per 100 grams of solution.
The concentration of a solution can be expressed in ppm, but not in ppb.
The concentration of a solution can be expressed in ppm, but not in ppb.
A solid-liquid solution is an example of a physical method of expressing concentration.
A solid-liquid solution is an example of a physical method of expressing concentration.
The physical method of expressing concentration is used to express the quantity of solute in chemical units.
The physical method of expressing concentration is used to express the quantity of solute in chemical units.
