Solubility Curves

How many grams of KNO₃ will produce a saturated solution at 40 degrees?

• 75

• 55

• 65

• 85

How many grams ofCe₂(SO₄)₃ solute will produce a saturated solution at 80 degrees?

• 20

• 15

• 30

• 2

At what temperature can you fully dissolve 140g of NaNO₃?

• 62

• 73

• 81

• You cannot determine this

What type of a solution is 60g NaNO₃ at 40ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

• You cannot determine this

What type of a solution is 60 g KCl at 70ºC in 100g H₂O?

• Saturated

• Unsaturated

• Supersaturated

• You cannot determine this

How many grams of K₂Cr₂O₇, are soluble in 50 g of water at 90ºC?

• 70 grams

• 35 grams

• 140 grams

• 105 grams

Tags

NGSS.HS-PS1-5

Which substance is MOST soluble at 0 ºC?

• KI
• NaNO₃
• NaCl
• Ce₂(SO₄)₃

Tags

NGSS.HS-PS1-5

When 20 grams of potassium chlorate, KClO₃, is dissolved in 100 grams of water at 80 ºC, the solution can be correctly described as:

• supersaturated

• saturated

• unsaturated

• You cannot determine this

Tags

NGSS.HS-ESS2-5

20 grams of NaCl are dissolved in 100 mL of water at 60 ^0C. How many more grams need to be dissolved for the solution to be saturated?

• 15 grams

• 25 grams

• 6 grams

• 38 grams

Tags

NGSS.HS-PS1-5

A saturated solution of Pb(N0₃)₂ is prepared at 20°C using 100 grams of water. As this solution is cooled to 10°C, NaN0₃ precipitates (settles) out of the solution. The resulting solution is saturated. Approximately how many grams of NaN0₃ settled out of the original solution?

• 26 grams

• 10 grams

• 55 grams

• 126 grams

Tags

NGSS.HS-PS1-5