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Prepare 100 ml of 1:100 bleach solution from a 1:10 bleach solution a. How much volume of bleach solution will you need? b. How much volume of water is needed? c. Determine the percentage of chlorine concentration from the solution

Prepare 100 ml of 1:100 bleach solution from a 1:10 bleach solution a. How much volume of bleach solution will you need? b. How much volume of water is needed? c. Determine the percentage of chlorine concentration from the solution

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Prepare 100 ml of 1:100 bleach solution from a 1:10 bleach solution a. How much volume of bleach solution will you need? b. How much volume of water is needed? c. Determine the percentage of chlorine concentration from the solution Note: show all solutions
Activity 2: PREPARING DISINFECTANT SOLUTIONS AT HOME Chlorine is one of the best disinfectant for use against virus contamination because it is cheap and easily available. Also, it has the ability to fragment the Nucleic Acid of Polymerase Chain Reaction (www.lentech.com) The best compound for the preparation of chlorine solutions for disinfection is household bleach (also known by other names such as Chlorox®, Eau-de-Javel). Household bleach is a solution of sodium hypochlorite which generally contains 5% (50 g/liter or 50 000 ppm) available chlorine. Note that: 1. different products may contain different concentrations of available chlorine and the concentration should be checked before use; 2. household bleach preparations can lose some of their chlorine over time. Use newly manufactured bleach if possible. If the bleach does not smell strongly of chlorine it may not be satisfactory for the purpose and should not be used; 3. thick bleach solutions should never be used for disinfection purposes (other than in toilet bowls) as they contain potentially poisonous additives. When preparing chlorine solutions for use note that: 1. chlorine solutions gradually lose strength, and freshly diluted solutions must therefore be prepared daily; 2. clear water should be used because organic matter destroys chlorine; 3. 1:10 bleach solution is caustic. Avoid direct contact with skin and eyes; 4. bleach solutions give off chlorine. Prepare them in a well ventilated area; 5. use plastic containers for mixing and storing bleach solutions as metal containers are corroded rapidly and also affect the bleach. Two different dilutions of bleach are used for disinfection. • 1:10 bleach solution, a strong disinfectant that is used to disinfect: - Excreta - Bodies - Seit of blood/body fluids - Vehicles and tires - It is also used to prepare 1:100 bleach solution • 1:100 bleach solution, which is used to disinfect: - Surfaces - Medical equipment - Beddie Reusable protective clothing before it is laundered * Also recommended for: - Rinsing glovee between contact with different patients (if new gloves are not available - Rinsing aloves aprons, boots before leaving a patient's room - Disinfecting contaminated waste before disposal Supposed groceries ran out of stock for disinfectant products and you found out that there is still 1L household bleach left in your home. Apply your learnings from this material to perform the needed calculations in order for you to produce your own home made disinfectant. 1. From 1 L of household bleach available, a. How much volume of 1:10 house hold bleach solution will you be able to prepare ? b. How much volume of water is needed? c. It has been mentioned earlier that household bleach is a solution of sodium hypochlorite which generally contains 5% (50 g/liter or 50 000 ppm) available chlorine, how many percent of chlorine is present in this solution? 2. Prepare 100 mL of 1:100 bleach solution from a 1:10 bleach solution a. How much volume of bleach solution will you need? b. How much volume of water is needed? c. Determine the percentage of chlorine concentration from the solution
Transcribed Image Text:Activity 2: PREPARING DISINFECTANT SOLUTIONS AT HOME Chlorine is one of the best disinfectant for use against virus contamination because it is cheap and easily available. Also, it has the ability to fragment the Nucleic Acid of Polymerase Chain Reaction (www.lentech.com) The best compound for the preparation of chlorine solutions for disinfection is household bleach (also known by other names such as Chlorox®, Eau-de-Javel). Household bleach is a solution of sodium hypochlorite which generally contains 5% (50 g/liter or 50 000 ppm) available chlorine. Note that: 1. different products may contain different concentrations of available chlorine and the concentration should be checked before use; 2. household bleach preparations can lose some of their chlorine over time. Use newly manufactured bleach if possible. If the bleach does not smell strongly of chlorine it may not be satisfactory for the purpose and should not be used; 3. thick bleach solutions should never be used for disinfection purposes (other than in toilet bowls) as they contain potentially poisonous additives. When preparing chlorine solutions for use note that: 1. chlorine solutions gradually lose strength, and freshly diluted solutions must therefore be prepared daily; 2. clear water should be used because organic matter destroys chlorine; 3. 1:10 bleach solution is caustic. Avoid direct contact with skin and eyes; 4. bleach solutions give off chlorine. Prepare them in a well ventilated area; 5. use plastic containers for mixing and storing bleach solutions as metal containers are corroded rapidly and also affect the bleach. Two different dilutions of bleach are used for disinfection. • 1:10 bleach solution, a strong disinfectant that is used to disinfect: - Excreta - Bodies - Seit of blood/body fluids - Vehicles and tires - It is also used to prepare 1:100 bleach solution • 1:100 bleach solution, which is used to disinfect: - Surfaces - Medical equipment - Beddie Reusable protective clothing before it is laundered * Also recommended for: - Rinsing glovee between contact with different patients (if new gloves are not available - Rinsing aloves aprons, boots before leaving a patient's room - Disinfecting contaminated waste before disposal Supposed groceries ran out of stock for disinfectant products and you found out that there is still 1L household bleach left in your home. Apply your learnings from this material to perform the needed calculations in order for you to produce your own home made disinfectant. 1. From 1 L of household bleach available, a. How much volume of 1:10 house hold bleach solution will you be able to prepare ? b. How much volume of water is needed? c. It has been mentioned earlier that household bleach is a solution of sodium hypochlorite which generally contains 5% (50 g/liter or 50 000 ppm) available chlorine, how many percent of chlorine is present in this solution? 2. Prepare 100 mL of 1:100 bleach solution from a 1:10 bleach solution a. How much volume of bleach solution will you need? b. How much volume of water is needed? c. Determine the percentage of chlorine concentration from the solution
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