Making Solutions Lab Quiz (Unit 9 Lab)

___________ refers to the amount of solute dissolved in a given amount per volume of solution

• Concentration

• Dilution

• Precipitation

• None of the above

Tags

NGSS.HS-PS1-5

__________ is to break a substance into cations and anions.

• solvation

• ionization

• dissolution

• saturation

As you put in more solute in the solution, the concentration of the solution will...

• increase

• decrease

• stay the same

Tags

NGSS.HS-PS1-5

What is the molarity of a solution containing 4 moles of KCl in 2.5 L of solution?

• 1.6 M

• 0.63 M

• 10 M

• 2.6 M

What is the molarity of 4 grams of sodium chloride (NaCl) in 3,800 mL of solution?

• 0.018 M
• 0.018 m
• 1.052 M
• 1.052 m

How many moles of solute are contained in 3.0 L of a 1.5 M solution?

• 4.5 moles
• 1.5 moles
• 2.0 moles
• 0.5 moles

You need to make 200 mL of a 0.20 M aqueous solution of sodium chloride. The only available solution is 1.0 M. Determine how to make the needed dilution.

• Add 160 mL to the initial volume

• Add 160 grams to the initial volume

• Evaporate 160 mL from the initial volume

• the experiment cannot be conducted with the materials provided

Tags

NGSS.HS-ETS1-2

A dilution is when

• solute is added to the volume of stock solution

• water is added to the volume of stock solution

• solute is removed from the volume of stock solution

• water is removed from the volume of stock solution

What volume, in milliliters, of 10.0 M NaOH is needed to prepare 300 mL of 2.00 M NaOH by dilution?

• 0.067 mL

• 60.0 mL

• 100 mL

• 125 mL

What is the molarity of 4 g of NaCl (MM=58.45g/mol) in 3,800 mL of solution?

• 0.018 M

• 0.0011 M

• 1.052 M

• 0.062 M

Tags

NGSS.HS-PS1-7