Solubility curve and molarity

How many grams of NaCl are needed to 100 grams of water at 50⁰C? Hover over the graph to see it better.

• 25

• 15

• 38

• 50

Tags

NGSS.MS-PS1-4

Which substance is MOST soluble at 0 ºC?

• KI
• NaNO₃
• NaCl
• Ce₂(SO₄)₃

Tags

NGSS.MS-PS1-4

Which solute is the most soluble at 10 ⁰C?

• KI
• KClO₃
• NH₄Cl
• NH₃

Tags

NGSS.HS-PS1-5

Which solute does not increase in solubility as temperature rises?

• NH₃
• NaNO₃
• KNO₃
• NaCl

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

Tags

NGSS.HS-PS1-5

Which sweet tea would you expect to taste the sweetest?

• 1M
• 3M
• 3.1M
• 2.5M

Tags

NGSS.HS-PS1-5

True or False? The higher the concentration of a solution the less solutes it has in it.

• True
• False

Tags

NGSS.HS-PS1-5

Calculate the molarity of a solution containing 1.5 moles of NaCl in 0.5 L of solution

• 1.5

• 0.33 M

• 30 M

• 3 M

What is the molarity of a solution made by adding 1.565 moles of PbNO₃ to 500 mL?

• 300. M
• 31.3 M
• 3.13 M
• 1.56 M

Tags

NGSS.HS-PS1-7

What happens when you decrease the amount of water in this solution?

• the molarity increases; dark solution

• the molarity decreases; light solution

Tags

NGSS.HS-PS1-5