Table G Regents Chemistry

An unsaturated solution is formed when 80. grams of a salt is dissolved in 100. grams of water at 40.°C. This salt could be

• KCl

• KNO₃

• NaCl

• NaNO₃

A solution is formed by dissolving 30 grams of NaCl in 100 grams of H₂O at 50ºC. Which statement correctly describes this solution?

• NaCl is the solute and it is a saturated solution

• NaCl is the solute and it is an unsaturated solution

• NaCl is the solvent and it is a saturated solution

• NaCl is the solvent and it is an unsaturated solution

Tags

NGSS.HS-ESS2-5

NGSS.HS-PS1-5

A solution contains 35 grams of KNO₃ dissolved in 100 grams of water at 40°C. How much more KNO₃ would have to be added to make it a saturated solution?

• 29 g

• 24 g

• 12 g

• 4 g

Tags

NGSS.MS-PS1-2

What is the mass of KCl that must dissolve in 200. grams of water at 50.°C to make a saturated solution?

• 21 g

• 42 g

• 63 g

• 84 g

Tags

NGSS.HS-PS3-4

A saturated solution of NH₄Cl is prepared at 60.ºC using 100. grams of water. As this solution is cooled to 10.ºC, NH₄Cl precipitates out of the solution. The resulting solution is saturated. Approximately how many grams of NH₄Cl settled out of the original solution?

• 23 g

• 34 g

• 57 g

• 91 g

Tags

NGSS.HS-PS1-5