Solutions Test Review

What is the molar mass of B₂(CO₃)₃?

• 81.632 g/mol
• 94.842 g/mol
• 38.822 g/mol
• 201.648 g/mol

What is the molar mass of NaOH?

• 39.997 g/mol
• 38.989 g/mol
• 23.998 g/mol
• 57.004 g/mol

What is the molar mass of Ca(OH)₂ to the ones place?

• 58
• 74
• 329
• 1360

What is the molar mass of NH₄NO₃

• 64.05 g/mol
• 80.05 g/mol
• 48.05 g/mol
• 79.04 g/mol

Describe an unsaturated solution

• Solvent can dissolve more solute
• Solvent cannot dissolve more solute
• Solute can start dissolving
• Solute can dissolve like substances

Carbon dioxide dissolved in soda is an example of which solute-solvent combination?

• gas-air
• liquid-gas
• gas-liquid
• liquid-air

Which of the following does not effect the rate of dissolution?

• temperature
• agitation
• speed
• surface area

Which of the following would have the slowest rate of dissolution?

• a sugar cube in hot water
• a sugar cube in cool water
• powdered sugar in cool water
• powdered sugar in hot water

Tags

NGSS.HS-PS1-5

Which of the following would have the fastest rate of dissolution?

• a sugar cube in hot water
• a sugar cube in cool water
• powdered sugar in hot water
• powdered sugar in cool water

Tags

NGSS.HS-PS1-5

The "like dissolves like" rule is the reason why water cannot dissolve

• salt
• sugar
• vinegar
• oil