Assignment:
Q1. What quantity of a 60% acid solution must be mixed with a 30% solution to produce 300 mL of a 50% solution?
Q2. A pot contains 6L of brine at a concentration of 120g/L. How much of the water should be boiled off to increase the concentration to 200 g/L?
Q3. A merchant blends tea that sells for $3.00 a pound with tea that sells for $2.75 a pound to produce 80 lbs of a mixture that sells for $2.90 a pound. How many pounds of each type of tea does the merchant use in the blend?
Provide complete and step by step solution for the question and show calculations and use formulas.