Solution Chemistry

What is the molar concentration of a 100 mL aqueous solution that contains 1.00 g KCl?

• 1.34 M KCl
• 0.134 M KCl
• 0.0134 M KCl
• 0.00134 M KCl

Tags

NGSS.HS-PS1-7

To determine the molarity of an HCl solution, you need to know the number of: 

• g of HCl in 100000 g of solution
• moles of HCl dissolved in the total moles of solution
• moles of HCl in 1 L of solution
• moles of HCl dissolved in 1 kg of solvent

What is the molarity of a solution that contains 0.202 mol KCl in 7.98 L of solution

• 0.0132 M KCl
• 0.0253 M KCl
• 0.459 M KCl
• 1.36 M KCl

what is the molarity of a solution that contains 125 g NaCl in 4.00 L of solution?

• 0.535 M NaCl
• 2.14 M NaCl
• 8.56 M NaCl
• 31.3 M NaCl

Which of the following is soluble in water?

• potassium nitrate
• silver
• carbon tetrachloride
• benzene (C₆H₆)

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS1-3

A dissolved solute that does not form ions is:

• a nonelectrolyte
• a weak electrolyte
• a strong electrolyte
• insoluble

If the temperature stays the same, the solubility of gases in liquids 

• increases with increasing pressure
• cannot reach equilibrium
• decreases with increasing pressure
• does not depend on pressure

Which does not affect the rate at which a solid solute dissolves?

• the vapor pressure of the solvent
• the temperature of the solvent
• the surface area of the solid
• the speed at which the solution is stirred

Tags

NGSS.HS-PS1-5

What is the molality of an aqueous NaOH solution made with 5.00 kg of water and 3.6 mol of NaOH?

• 3.6 m NaOH
• 1.4 m NaOH
• 0.72 m NaOH
• 0.090 m NaOH

What mass of NaCl is needed to make a 1.5 m solution using 300 g of solvent?

• 26.3 g NaCl
• 11.7 g NaCl
• 1.50 g NaCl
• 0.0877 g NaCl