Question

QUICK HELP PLEASE!!?? Need answer QUICK

What type of solution would you have if you dissolved 60g of Na2HAsO4 in 100g of 60oC water?



A. supersaturated

B. unsaturated

C. saturated

D. Cannot be determined

Answer 1

B

Step-by-step explanation:

Look on the x-axis for the tick marked "60". This indicates 60 degrees Celsius, which we want. Now, look on the y-axis for the tick marked "60". This indicates 60 grams of
`Na_2HAsO_4`. Trace along the graph to find where these two places meet at (60, 60).

Now, look for the solubility curve of
`Na_2HAsO_4`; it's the yellow-orange line. Find out what the y-coordinate of the point where x = 60 is on the line: it's around (60, 65).

So, since the point (60, 60) is below the line corresponding to this substance,
`Na_2HAsO_4` is unsaturated.

The answer is B.