Q.6 Which of the following concentration units does not vary with temperature?
a) mass-mass percentage
b) mass-volume percentage
c) volume-volume percentage
d) all of the above
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Answer:
d) all of above
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Answer:Molarity =
Volume of solution (L)
no. of moles
When temperature increases the volume of the solution decreases assuming the solution is in constant pressure conditions.
Tα V1
Therefore when temperature increases volume decreases and molarity increases.
Mass percentage,ppm,mole fraction and molality are solely dependant on mass which is independent of temperature.
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