Mac's Solubility Questions

The compound which is MOST soluble at 20⁰C is

• KI

• NaNO₃

• KNO₃

• HCl

The compound which is the LEAST soluble at 10⁰C is

• SO₂

• NaCl

• KClO₃

• KNO₃

The compound which is LEAST soluble at 80^oC is

• NH₃

• SO₂

• NaCl

• KClO₃

Tags

NGSS.HS-PS1-5

The number of grams of potassium nitrate needed to saturate 100 mL of water at 70^oC is

• 135 g

• 125 g

• 140 g

• 63 g

One hundred mL of a sodium nitrate solution is saturated at 10^oC. How many additional grams are needed to saturate the solution at 50^oC?

• 80 g

• 55 g

• 110 g

• 35 g

One hundred mL of a saturated KCl solution at 80^oC will precipitate 10 g of salt when cooled to what temperature?

• 40^oC

• 50^oC

• 60^oC

• 70^oC

Tags

NGSS.HS-PS3-4

The two salts with the same degree of solubility at 70^oC are

• NaCl and KClO₃

• KNO₃ and NaNO₃

• KCl and HCl

• KCl and NH₄Cl

The salt least affected by a change in temperature is

• SO₂

• KI

• NH₃

• NaCl

Tags

NGSS.HS-PS1-5

NGSS.HS-PS3-4

The number of grams of sodium nitrate that must be added to 50 mL of water to produce a saturated solution at 50^oC is

• 52 g

• 68 g

• 58 g

• 62 g

A saturated solution of potassium chlorate is made at 10^oC by dissolving the correct mass of salt in 100 mL of water. When the solution is heated to 90^oC, how many grams must be added to saturate the solution?

• 35 g

• 50 g

• 40 g

• 45 g

Tags

NGSS.HS-PS3-4