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- Could Cr(s) react with Pb(NO3)2 ?Since the resolution of SrCO3 is a g/L, the resolution product of SrF2 is B, what happens [F -] when equilibrium is reached if solid SrF2 is boiled with a solution of Na2CO3 so that it is [CO32 -]= C Molar in the final solution?The deltaHs of cobalt (II) nitrate is +47.7 kJ/mol. What is the deltaHf of solid cobalt (II) nitrate? deltaHf(NO3-(aq)) = -205.00 kJ/mol deltaHf(Co2+(aq)) = -58.2 kJ/mol