You mix 345 gallons of a mixture containing 4 wt% NaCl (sodium chloride) and 96 wt% water (solution density = 1.0253 g/cm³) with an unknown volume of solution that is 26 wt% NaCl and 74 wt% water...

Question 1 is just the details and question 2 is what I need help with.

Extracted text: You mix 345 gallons of a mixture containing 4 wt% NaCl (sodium chloride) and 96 wt% water (solution density = 1.0253 g/cm³) with an unknown volume of solution that is 26 wt% NaCl and 74 wt% water (solution density = 1.1944 g/cm³). You want to produce a mixture containing 15 wt% NaCl. Find the volume of the second feed solution by following the steps below. Label the flow chart of the mixing process. Drag the labels below to fill in the spaces next to each quantity. If you are not given a value for a quantity, place the word "unknown" in the space. DO NOT LEAVE ÁNY SPACES EMPTY. gallons 345 grams mixture unknown wt% NaCl 4 wt% water 96 unknown grams mixture Mixer wt% Naci 15 unknown gallons unknown wt% water unknown grams mixture 26 wt% NaCl unknown 74 wt% water


Extracted text: Which independent equations can you write to solve for the volume of the second feed solution. Check all that apply. Mass balance on water Volume balance on NaCl The sum of the weight fractions of the 26 wt% NaCl solution equals 1. The density of the 4 wt% NaCl solution relates the solution mass to volume. Volume balance on the total amount of fluid Volume balance on water The density of the 26 wt% NaCl solution relates the solution mass to volume. Mass balance on NaCl The sum of the weight fractions of the product solution equals 1. The sum of the weight fractions of the 4 wt% NaCl solution equals 1.