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8) A liquid is available in a 1:350 concentration. Prepare a pint of 1:500 solution. How many milliliters of stock solution (solute) are needed? How many milliliters of solvent are needed? 10) A physician orders 250 mL of 15% dextrose in water. The stock solution is 50% dextrose in 10-ml ampules. How many milliliters of stock solution are needed? How many milliliters of sterile water are needed? How many ampules of dextrose are needed to complete the order? 12) Prepare 250 mL of 3% hydrogen peroxide solution from 12% hydrogen peroxide solution. How many milliliters of stock solution (solute) are needed? How many milliliters of solvent are needed?

8) A liquid is available in a 1:350 concentration. Prepare a pint of 1:500 solution. How many milliliters of stock solution (solute) are needed? How many milliliters of solvent are needed? 10) A physician orders 250 mL of 15% dextrose in water. The stock solution is 50% dextrose in 10-ml ampules. How many milliliters of stock solution are needed? How many milliliters of sterile water are needed? How many ampules of dextrose are needed to complete the order? 12) Prepare 250 mL of 3% hydrogen peroxide solution from 12% hydrogen peroxide solution. How many milliliters of stock solution (solute) are needed? How many milliliters of solvent are needed?

Introductory Chemistry: A Foundation
Introductory Chemistry: A Foundation
9th Edition
ISBN:9781337399425
Author:Steven S. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Donald J. DeCoste
Chapter15: Solutions
Section: Chapter Questions
Problem 27CR
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7 8) A liquid is available in a 1:350 concentration. Prepare a pint of 1:500 solution. How many milliliters of stock solution (solute) are needed? How many milliliters of solvent are needed? 10) A physician orders 250 mL of 15% dextrose in water. The stock solution is 50% dextrose in 10-mL ampules. How many milliliters of stock solution are needed? How many milliliters of sterile water are needed? How many ampules of dextrose are needed to complete the order? 12) Prepare 250 mL of 3% hydrogen peroxide solution from 12% hydrogen peroxide solution. How many milliliters of stock solution (solute) are needed? How many milliliters of solvent are needed? 14 On hand are 5% sodium hypochlorite solution and 20% sodium hypochlorite solution. How many milliliters of each solution need to be combined to prepare 1 L of 12% sodium hypochlorite solution? (Round to whole numbers and label your answers.) 16. Prepare 1.5 L of 6% Lysol solution using 5% Lysol and 8% Lysol. How many milliliters of each solution need to be combined to fill this order? Check your answers using alligation medial.
Transcribed Image Text:7 8) A liquid is available in a 1:350 concentration. Prepare a pint of 1:500 solution. How many milliliters of stock solution (solute) are needed? How many milliliters of solvent are needed? 10) A physician orders 250 mL of 15% dextrose in water. The stock solution is 50% dextrose in 10-mL ampules. How many milliliters of stock solution are needed? How many milliliters of sterile water are needed? How many ampules of dextrose are needed to complete the order? 12) Prepare 250 mL of 3% hydrogen peroxide solution from 12% hydrogen peroxide solution. How many milliliters of stock solution (solute) are needed? How many milliliters of solvent are needed? 14 On hand are 5% sodium hypochlorite solution and 20% sodium hypochlorite solution. How many milliliters of each solution need to be combined to prepare 1 L of 12% sodium hypochlorite solution? (Round to whole numbers and label your answers.) 16. Prepare 1.5 L of 6% Lysol solution using 5% Lysol and 8% Lysol. How many milliliters of each solution need to be combined to fill this order? Check your answers using alligation medial.
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