Biotechnology 3.2 HW

Which of the following is NOT a type of balance used to measure the mass of a solute?

• Tabletop/portable balance

• Analytical balance

• Electronic balance

• Displacement balance

What is the standard unit of mass in the biotechnology lab?

• Kilogram (kg)

• Gram (g)

• Milligram (mg)

• Microgram (µg)

What is the term for a substance that is dissolved in water to form a solution?

• Solvent

• Solute

• Aqueous

• Balance

What is the term for a solution in which one or more substances are dissolved in another substance?

• Solvent

• Solute

• Aqueous

• Solution

What is the substance that dissolves the solute called?

• Solvent

• Solute

• Solution

• Suspension

What type of water is recommended for laboratory solutions to avoid impurities?

• Tap water

• Deionized water or distilled water

• Spring water

• Mineral water

What is the term used to describe the amount of solute added to a solvent?

• Solubility

• Concentration

• Dilution

• Saturation

Tags

NGSS.HS-PS1-5

What should be used to rinse glassware after washing with laboratory soap?

• Tap water

• Ethanol

• Deionized water or distilled water

• Chloroform

What is the common unit for measuring mass/volume concentration in biotechnology labs?

• g/L

• % (percent)

• M (molarity)

• μM (micromolarity)

Which of the following is an example of a solution measured in % (percent) concentration?

• 2 g/L albumin solution

• 10% NaOH solution

• 1 M NaCl

• 50 mM Tris buffer