1,O2 gas contributes 21 % partial pressure in the atmosphere. What is the solubility of O2 in sea water
at sea level and 25 o
C, if kH of O2 at 25 o
C is 1.20 x 10 β3 M atm.?
2, A. The solubility of AgNO3 at 10 o
C is 170 g and at 20 o
C is 222 g. Is the dissolution of AgNO3
exothermic or endothermic? Give reason for your answer.
B. ΞH solution of NaI is β 7.50 kJ / mol. Is NaI more soluble at 20 o
C or at 60 o
C? Why?
3, Assign each lattice energy value to the appropriate ionic compound.
MgI2 / LiI / NaI / MgF2 / MgO 2327 kJ / 757 kJ / 2957 kJ / 3923 kJ / 707 kJ
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1,O2 gas contributes 21 % partial pressure in the atmosphere. What is the solubility of O2 in sea wa...
Computers and Technology, 13.12.2019 23:31