A certain ionic compound X has a solubility in water of 40.7gL at 20.°C. Calculate the greatest mass of X that could be dissolved in 8.0L of water at this temperature. You may assume the volume of the solution doesn't change as the X is dissolved.Be sure your answer has the correct unit symbol and 2 significant digits.
Question
A certain ionic compound X has a solubility in water of 40.7gL at 20.°C. Calculate the greatest mass of X that could be dissolved in 8.0L of water at this temperature. You may assume the volume of the solution doesn't change as the X is dissolved.Be sure your answer has the correct unit symbol and 2 significant digits.
Solution
To solve this problem, we need to use the given solubility of the ionic compound X in water. The solubility is given as 40.7 g/L, which means that 40.7 grams of compound X can be dissolved in 1 liter of water.
We are asked to find the greatest mass of X that could be dissolved in 8.0 liters of water.
To find this, we simply multiply the solubility of X by the volume of water.
So, 40.7 g/L * 8.0 L = 325.6 g
However, we are asked to give our answer with 2 significant digits. So, we round 325.6 to 330 (since 5 is in the tens place of 325.6, we round up).
Therefore, the greatest mass of X that could be dissolved in 8.0 liters of water at 20°C is 330 g.
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