Problem: Calculate K at 298 K for the following reaction:(b) SrSO4(s) ⇌ Sr2+(aq) + SO42−(aq)

FREE Expert Solution

SrSO4(s) ⇌ Sr2+(aq) + SO42−(aq)


Recall that ΔG˚rxn and K are related to each other:


ΔG°rxn=-RTlnK


We can use the following equation to solve for ΔG˚rxn:


ΔG°rxn=ΔG°f, prod-ΔG°f, react



Solving for ΔG˚rxn:


ΔG°rxn=ΔG°f, prod-ΔG°f, react


ΔG°rxn=(1 mol Sr2+)-559.5 kJ1 mol Sr2++(1 mol SO42-)(-744.5 kJ1 mol SO42-)           -(1 mol SrSO4)-1340.9 kJ1 mol NH3

ΔG˚rxn = 36.90 kJ/mol


We also need to convert ΔG˚rxn from kJ to J:

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Problem Details

Calculate K at 298 K for the following reaction:

(b) SrSO4(s) ⇌ Sr2+(aq) + SO42−(aq)

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.