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The temperature of a solution can change the solubility of a substance. The chart shows the solubility of the same solute at different temperatures in water.

\begin{tabular}{|c|c|c|}
\hline
Solution & Temperature [tex]$[^\circ C]$[/tex] & [tex]$g / 100 g$[/tex] water \\
\hline
W & 40 & 50 \\
\hline
X & 59 & 200 \\
\hline
Y & 55 & 150 \\
\hline
Z & 48 & 80 \\
\hline
\end{tabular}

Based on the chart, which solution was at the optimal temperature to allow for the greatest solubility?

A. W
B. X
C. Y
D. Z

Sagot :

GinnyAnswer
To determine which solution was at the optimal temperature for the greatest solubility, let's carefully analyze the given information:

1. We have the solubilities at various temperatures for each solution:

- For solution W: at 40°C, the solubility is 50 g/100 g water.
- For solution X: at 59°C, the solubility is 200 g/100 g water.
- For solution Y: at 55°C, the solubility is 150 g/100 g water.
- For solution Z: at 48°C, the solubility is 80 g/100 g water.

2. To find the optimal temperature for the greatest solubility, we need to identify the maximum value of solubility from the given data.

- Compare the solubility values:
- Solution W: 50 g/100 g water
- Solution X: 200 g/100 g water
- Solution Y: 150 g/100 g water
- Solution Z: 80 g/100 g water

3. From these values, the greatest solubility is 200 g/100 g water, which corresponds to solution X.

4. Therefore, the solution that was at the optimal temperature to allow for the greatest solubility is solution X, which had a solubility of 200 g/100 g water at 59°C.

So the solution X was at the optimal temperature to allow for the greatest solubility.
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