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Lessons 9.3 & 9.4

Last updated 6 months ago

5 Nsɛmmisa

Ɛhia

1

Ɛhia

1

Asemmisa {{asɛmmisaAhyɛnsode}}

1.

If a 7.0M solution was diluted to 2.5 M 40 mL solution, what was the initial volume of the solution?

100 mL

14.3 mL

3.8 mL

112 mL

Asemmisa {{asɛmmisaAhyɛnsode}}

2.

If 100mL of water is added to 300 mL of acid that has a molarity of 2.0M, what is the concentration of the new mixture ?

1.5 M

2.5 M

6 M

3 M

Ɛhia

1

Asemmisa {{asɛmmisaAhyɛnsode}}

3.

How much KCl must be dissolved in 100 g of water at 40C to create a saturated solution?

60

25

80

40

Ɛhia

1

Ɛhia

1

Asemmisa {{asɛmmisaAhyɛnsode}}

4.

Dissolving 60 g of HCl into 100 g of water at 40C will yield what type of solution?

unsaturated

saturated

supersaturated

Asemmisa {{asɛmmisaAhyɛnsode}}

5.

Which compounds solubility is least affected by temperature changes?

KI

NaCl

KClO₃

KNO₃