Question 51 pts What is the final concentration of a solution if you have 120 mL of a 40% solution and the final volume is 240 mL? 20% 40% C 60% c 80% Question 41 pts What is the final concentration of a 25% solution diluted to 1/10? 0.25% 2.5% 25% 250% Question 26 If you need 1500 mL of a 34% bleach solution, and the stock solutions available are 18% and 42%, how much of each will be needed? Group of answer choices 400 mL of 18%; 1100 mL of 42% 500 mL of 18%; 1000 mL of 42% 1000 mL of 18%; 500 mL of 42% 1100 mL of 18%; 400 mL of 42% Question 27 A physician ordered an IV of 500 ml, 5% liquid solution. The pharmacy has a 20% solution. How many milliliters of sterile water are needed for this IV? Group of answer choices 100 mL of sterile water; 400 mL of 20 % 125 mL of sterile water; 375 mL of 20% 375 mL of sterile water; 125 mL of 20% 400 mL of sterile water; 100 mL of 20% Question 28 A physician ordered sodium chloride 500 mL, 0.45% liquid solution. The pharmacy technician makes this solution from 23.4% sodium chloride and sterile water. How many mL of each will be needed? 9.6 mL of sterile water; 490.4 mL of 23.4% 150 mL of sterile water; 350 mL of 23.4% 350 mL of sterile water; 150 mL of 23.4% 490.4 mL of sterile water; 9.6 mL of 23.4% Question 29 A physician ordered an IV of dextrose 12.5%, 500 ml. The pharmacy technician has only dextrose 10% W and 20% W. How many milliliters of each are needed? 100 mL of 10%; 400 mL of 20% 125 mL of 10%; 375mL of 20% 375 mL of 10%; 125 mL of 20% 400 mL of 10%; 100 mL of 20%