Anonymous
Anonymous asked in Science & MathematicsChemistry · 1 month ago

13.9 Some lithium bromide, LiBr, is dissolved in 100 mL of water in one beaker, and some......?

Some lithium bromide, LiBr, is dissolved in 100 mL of water in one beaker, and some Li2CO3 is dissolved in 100 mL of water in another beaker. Both are at 10 °C, and both are saturated solutions; some solid remains undissolved in each beaker. Describe what you would observe as the temperature is raised. The following data are available to you from a handbook of chemistry:

                         Solubility (g/100 mL)

Compound       10°C        40°C

Li2CO3             1.54.        1.17

LiBr                   166          205

(Select all that apply.)

1. As temperature increases the solubility of Li2CO3 decreases; additional solid should appear in the beaker.

2. As temperature increases the solubility of LiBr increases; additional solid should dissolve.

3. As temperature increases the solubility of LiBr decreases; additional solid should appear in the beaker.

4. As temperature increases the solubility of Li2CO3 increases; additional solid should dissolve.

1 Answer

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  • Bobby
    Lv 7
    1 month ago
    Favorite Answer

    As temperature increases the solubility of Li2CO3 decreases; additional solid should appear in the beaker. The solubility goes from 1.54 to 1.17 g/100 ml so the excess appears in the  beaker

    As temperature increases the solubility of LiBr increases from 166 to 205 g / 100 mL any additional solid we see in th ebeaker will dissolve should dissolve.

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