Answered

For each salt, determine how much will remain undissolved if 500 g is mixed into a liter of pure water at 40 ∘c. One significant figure is sufficient in each answer.



Answer :

The amount of the salts left undissolved at 40 °C is Lead II nitrate = 300 g and Potassium chloride = 100 g and Potassium dichromate = 0 g.

What is the undissolved salt mass?

We are aware that the mass of a solute that may dissolve at a specific temperature is related to the solubility. The absorption is temperature dependant, it must be said.

Briefing:

Let's consider how much of each salt would absorb at 40 °C;

Pb(NO3)₂ : 0.0g

KCl : 100.0g

K₂Cr₂O₇ : 300.0g

For any salt, we may calculate the amount that can be dissolved at 40 °C by dissolving 500 g and subtracting its solubility at that temperature.

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The complete question is-

For each salt, determine how much will remain undissolved if 500 g is mixed into a liter of pure water at 40 °C. One significant figure is sufficient in each answer.

Pb(NO3)₂:

KCI:

K₂Cr₂O7:

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