Without making any assumptions and using only information from the following diagram (Figure 1), set
up mass balances for the Washing Unit for TiO2, salt, water, and total mass, using the General Balance
Equation. Setting up mass balances requires four things (as shown in class examples): 1. A title
explaining the balance; 2. A line giving the General Balance Equation (Acc = In – Out + Gen – Con) and
demonstrating which terms will be zero; 3. A line where all relevant terms from the General Balance
Equation are substituted for variables from Figure 1; and 4. A line where all possible variables are
substituted for values from Figure 1. You only have to set up these balances. You do not have to solve
any of them. Given/Find/Assumptions/Analysis/Conclusion sections are not required for Question 1.
Figure 1. Pigment washing process.