Question

Use the graph of the solubility of ammonia, NH3, and sodium chloride, NaCl, to identify the number or word that completes each statement.

The solubility of __________ decreases as temperature increases.
A. Ammonia
B. Sodium Chloride

At 40°C, the solubility of NaCl is __________ than the solubility of NH3.
A. Less
B. Greater

At 10°C, a saturated solution of ammonia would contain about
____ g of ammonia for every mililiter of water.

At 90°C, the solubility of NaCl is ______ g/mL.

Answer 1

Solubility curve is a plot of solubility of a solute against temperature.

Ammonia

NH3

70 g

40 g/mL

The solubility curve shows the relationship between the solubility of a solute and temperature.

If we look at the solubility curve, the solubility of ammonia falls as temperature increases hence, the solubility of ammonia decreases with increase in temperature.

If we study the solubility curve, we will notice that at 40°C, the solubility of NaCl is greater than the solubility of ammonia.

At 10°C, a saturated solution of ammonia contains about 70g of ammonia per 100 mL of water from the graph.

The solubility of NaCl does not vary with temperature and remains 40 g/mL

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Answer 2

Answer:

Ammonia.

Greater.

70 g.

40g.

Explanation:

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