Question

Chapter is over Equilibrium Chemistry and connecting to Gravimetric systematic solving.

6. Write a charge balance equation and mass balance equations
for the following solutions. Some solutions may have more than one
mass balance equation.

a. 0.1 M NaCL

b. 0.1 M HCl

c. 0.1 M HF

g. 0.10 M HCl and 0.05 M NaNO2

Answer #1

Charge balance NaCl -------->
Na^{+} +
Cl^{-} Mass
balance n_{NaCl} = n_{Na+} +
n_{Cl- }

HCl ---------> H^{+} +
Cl^{-} Mass balance n_{HCl} =
n_{H+} +
n_{Cl- }

HF ---------> H^{+} +
F^{-}
Mass balance n_{HF} =
n_{H+} +
n_{F- }

HCl + NaNO_{2} -------->
H^{+} + Cl^{-} + Na^{+} +
NO_{2}^{-1}

Mass balance n_{HCl} +n_{NaNO2} =
n_{H+} + n_{Cl-}+
n_{Na+}+ n_{NO2-1}

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