Question: For question b , the answer is 0.15=[HNO2]+[NO2-] that the [NaNO2] does not include . Is it because the complete ionization of NaNO2? 9-5. Write
9-5. Write the mass-balance expressions for a solution that is *(a) 0.10M in H3PO4. (b) 0.10M in Na2HPO4. *(c) 0.100M in HNO2 and 0.0500M in NaNO2. (d) 0.25M in NaF and saturated with CaF2. *(e) 0.100M in NaOH and saturated with Zn(OH)2 (which undergoes the reaction Zn(OH)2+2OH2 Zn(OH)42) (f) saturated with MgCO3. (g) saturated with CaF2
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