Given chart Temp (C) Solubility of A in 100mL of water (g) 0 1.5 20 3.0 40 6.5 6

Question

Given chart
Temp (C)         Solubility of A in 100mL of water (g)
0                             1.5
20                           3.0
40                           6.5
60                           11
80                           17

a) suppose 0.1g of A and 1.0mL of water were mixed and heated to 80°C. would all the substance A dissolve?
b) the solution prepared in (b) is cooled. at whta temperature willcrystals of A appear?
c) Suppose the cooling descibed in (c) were continued to 0 °C.how many grams of A would come out of solution? explain how youobtained your answer.

please help! thank you!

Explanation / Answer

this problem u need to look at the solubility chart so a) if its 17 g / 100 ml then its .17g/1 ml so in that case .1 isless than .17 so yes it would disolve at 80 all of it woulddissolve b) if the solution is cooled you want to look at what temperaturethe .1 is greater than solubility at a temperature in this case atsome temperature less than 60 degrees very close to there. c) if it were cooled to 0 degrees at 0 degrees solubilit os .015per ml and since you have 1 ml and .1 g of stuff. take .1-.015 andthats the amount you would have as crystals.

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