Question

What mass of sodium nitrate is required to prepare 100g of

sodium nitrate from its saturated solution at 800C. Its solubility at 800C

is 170g and at 200C is 32g​

Answer 1

Answer:

tak this

Explanation:

Explanation:

So, you know that potassium nitrate,

KNO

3

, has a solubility of

155 g

per

100 g

of water at

75

∘

C

and of

38.0 g

at

25

∘

C

.

What that means is that at

75

∘

C

, you can dissolve as much as

155 g

of solid potassium nitrate in water without the solution becoming saturated.

Once you hit that

155 g

mark, the solution becomes saturated, which means that the solution can't dissolve any more solid.

Now, the same thing can be said for the solution at

25

∘

C

. At this temperature, dissolving less than

38.0 g

of potassium nitrate per

100 g

of water will result in an unsaturated solution.

At the

38.0 g

mark, the solution will become saturated.