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Norma-Jean [14]
3 years ago
12

An ionic compound has a very positive heat of solution in water. Would you expect it to be very soluble or insoluble in water?

Chemistry
1 answer:
sammy [17]3 years ago
4 0
Ionic hydrogen is very easy to soluble metrial in the water
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PLEASE HELP I NEED THIS ANSWERED IN 10 MINS PLEASE
elena-14-01-66 [18.8K]
We are given the equation to use which is:
ΔG = ΔH - TΔS

We are also given that:
ΔG = 173.3 kJ
T = 303 degrees kelvin
ΔH = 180.7 kJ

Substitute with these givens in the above equation to get ΔS as follows:
ΔG = ΔH - TΔS
173.3 = 180.7 - 303ΔS
303ΔS = 180.7 - 173.3 
303ΔS = 7.4
ΔS = 7.4 / 303 = 0.02442 kJ/K which is equivalent to 24.42 J/k

Based on the above calculations, the correct choice is:
D. 24.42 J/K
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3 years ago
When electrons gain energy, what can they do?
beks73 [17]

B. When electrons gain energy, they have the power to move up to a higher energy level in an atom.

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What is the percentage of lithium in lithium carbonate (Li2CO3)?
ale4655 [162]
Molar mass Li2CO3 = 73.89 g/mol
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% LI = 13.88/73.89*100 = 18.78% perfectly correct.
6 0
2 years ago
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Liula [17]
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Answer:

D

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