A geochemist in the field takes a 46.0 mL sample of water from a rock pool lined with crystals of a certain mineral compound X. He notes the temperature of the pool, 21°C, and caps the sample carefully. Back in the lab, the geochemist filters the sample and then evaporates all the water under vacuum. Crystals of X are left behind. The researcher washes, dries and weighs the crystals. They weigh 0.87 g. Required:
Using only the information above, can you calculate the solubility of X in water at 21°C? If yes, calculate it.

The solubility of X in water is g/ml.

Explanation:

The given data is as follows.

Volume of sample water = 46 ml

Temperature =

After vaporization, washes and then drying the weight of mineral X = 0.87 g

This means that 46.0 ml of water contains 0.87 g of X. Therefore, grams present in 1 ml of water will be calculated as follows.

          1 ml of water =

                                = g/ml

Therefore, we can conclude that solubility of X in water is g/ml.

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