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Chapter 8: Q8 TY (page 171)

Write two mass balances for a 1.0Lsolution containing 0.100molof sodium acetate.

Short Answer

Expert verified

The mass balances areNa+=0.100M and CH3CO2-+CH3CO2H=0.100M.

Step by step solution

01

Concept used.

Mass balance:

All species in a solution containing a certain atom (or group of atoms) must be equal to the amount of that atom (or group) given to the solution.

02

Step 2: Calculate the two mass balances.

By definition, mass balance of the solution is given by

For sodium ion:

Na+=0.100M

For acetate ion:

CH3CO2-+CH3CO2H=0.100Mdissociatedproductundissociatedproductamountofaceticacidputintothesolution

Therefore, mass balance equation for 1.0L solution of 0.100molNa+CH3CO2-was given.

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