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An aqueous solution is 1.00 molalin KI. ...

An aqueous solution is 1.00 molalin KI. Which change will cause the vapour pressure of the solution to increase ?
a) addition of water
b) addtion of NaCl
c) addtion of `Na_(2)So_(4)`
d) Addition of 1.0 molal KI

A

addition of 1.00 molal KI

B

addition of water

C

addition of NaCl

D

addition of `Na_2SO_4`

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