Determine how to prepare ten milliliters (mL) each of a 5%, 10%, and 20% (by volume) solutions of ethanol in H2O.
Calculate the volume of ethanol and the volume of water that you will need to mix to make a 5% (by volume) solution.
The correct answer with calculation given below...
Determine how to prepare ten milliliters (mL) each of a 5%, 10%, and 20% (by volume)...
Determine the initial volume, in milliliters, required to prepare each of the following: 8.00×10−2 L of a 0.150 MKCl solution using an 7.50 M KCl solution
Five milliliters of 5% alcohol are added to 5 mL of urine. Two milliliters of this solution is diluted to 50 mL with water, and 5 mL of this are used for analysis. How many milliliters of urine are in the analysis sample? You are doing a procedure that calls for 5 mL of undiluted urine. You use 3 mL of a 1/5 dilution of urine instead. The answer obtained is 50 mg/dL. What result should be reported? A procedure...
1.) How many milliliters of water are needed to prepare Amoxicillin solution 250mg/ml if you had an Amoxicillin vial of 1g. Assume each 1g Amoxicillin have a volume of 1mL.
Problem 9.67 Determine the initial volume, in milliliters, required to prepare each of the following: Part A 258 mL of a 0.200 M HNO, solution using a 4.50 M HNO, solution Express your answer with the appropriate units. ANSWER: VE Part B 716 mL of a 0.100 M MgCl, solution using a 6.50 M MgCl, solution
2. How many ml of a 50% w/v acetic acid solution are required to prepare 1 L of 5% w/v acetic acid? 3. How many ml of concentrated HNOs are required to prepare 2L of 0.15N HNOs? 4. How many milliliters of a stock solution of 20% w/v NaOH are required to prepare 800 ml of a 2.5% w/v solution? 5. Suppose that you start with a 5X solution A and you want a final volume of 10 microliters of...
Calculate the volume, in milliliters, for each of the following that provides the given amount of solute: a. 12.5 g of Na2CO, from a 0.120 M Na CO, solution b. 0.850 mol of NaNO, from a 0.500 M NaNO, solution c. 30.0 g of LiOH from a 2.70 M LiOH solution Calculate the final concentration of each of the following: a. 2.0 L of a 6.0 M HCl solution is added to water so that the final volume is 6.0...
Prepare dilute acid and base solutions and buffered acid and base solutions to observe how buffering affects the pH. Use four clean, dry 50 ml beakers. Put these pH measurments in the Data Sheet Dilute NaOH Beaker 3 1. add 25 mL distilled H2O Buffered NaOH Beaker 4 1. add 25 mL of original buffer solution Dilute HCI Buffered HCI Beaker 1 Beaker 2 1. add 25 mL distilled 1. add 25 mL of H2O original buffer solution 2. Measure...
How many milliliters each of purified water and an isotonic sodium chloride solution should be used to prepare 30 mL of a 1% w/v isotonic solution of fentanyl citrate (E= 0.11)? Separate each volume by a comma. I need help with this problem. Can you please show me step by step on how to solve this. Thank you.
prepare a 3.5 M ammonium sulfate solution in a final volume of 20 ml. how will you make it. show your calculations
How many milliliters of 10.5 M HCl(aq) are needed to prepare 740.0 mL of 1.00 M HCl(aq)? A 61.0 mL aliquot of a 1.20 M solution is diluted to a total volume of 238 mL. A 119 mL portion of that solution is diluted by adding 113 mL of water. What is the final concentration? Assume the volumes are additive. concentration: