Biotechnology 3.3 HW

What happens to the ratio of solute molecules to solvent as a solution becomes more concentrated?

• The ratio decreases

• The ratio increases

• The ratio remains the same

• The ratio fluctuates

Tags

NGSS.HS-PS1-5

Which of the following are concentration units?

• mM/hr

• gr/mL

• mM

• °F/°C

Tags

NGSS.HS-PS1-5

What is the concentration of a protein solution if 10 g of protein is dissolved in 10 mL of solvent?

• 0.1 g/mL

• 1 g/mL

• 10 g/mL

• 100 g/mL

What is the Mass/Volume Concentration Equation used for?

• To determine the mass of solute in a given volume of solution

• To determine the volume of solvent needed for a given mass of solute

• To determine the concentration of a solution

• To determine the temperature of a solution

How many grams of hemoglobin are needed to make 100 mL of a 0.05 g/mL hemoglobin solution?

• 5 g

• 0.5 g

• 50 g

• 0.05 g

If you need to make 100 mL of a 50 µg/mL hemoglobin solution, how many grams of hemoglobin are required?

• 0.005 g

• 0.05 g

• 0.5 g

• 5 g

What is the correct conversion factor from micrograms (µg) to milligrams (mg)?

• 1 mg = 1000 µg

• 1 mg = 100 µg

• 1 mg = 10 µg

• 1 mg = 0.1 µg

What does the term "percent" represent in the context of making solutions?

• A proportion of something out of 100 parts

• A proportion of something out of 10 parts

• A proportion of something out of 1000 parts

• A proportion of something out of 50 parts

What is the decimal value of a 10% solution?

• 0.1

• 0.5

• 0.01

• 1.0

How many grams of solute are needed to make 500 mL of a 10% NaCl solution?

• 50 g

• 5 g

• 0.5 g

• 100 g