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olutions (8 pts: Show your calculations for full credit) MgCl2 has a formula weight of 95g.mo1,...
completely with units and show your work for full credit. Complete on this sheet or on...
completely with units and show your work for full credit. Complete on this sheet or on a separate piece of paper, but do not complete in your lab notehook For each question, clearly indicate the name and the amount of EACH solute AND the amount of solvent (using proper units gms or mls, unless otherwise indicated) that you would use to prepare the solution. Assume water is the solvent if not indicated. 2 pts will be earned for showing your...
4) Show your work to get full credit. (a) How much in g) sodium acetate (CH3COONa)...
4) Show your work to get full credit. (a) How much in g) sodium acetate (CH3COONa) must be added to 100 mL 0.1 M CH3COOH solution to prepare a buffer solution with pH 4.90? (assume no change in volume) (b) What will be the pH of the final solution if 2.50 x 10 mol HCl solution is added to the buffer solution above? (c) What will be the pH of the solution if 2.00 x 10 mol NaOH solution is...
Solution Calculations for Celecoxib / C17H14F3N3O2S Directions: Clearly show the setups for your calculations. 1. You...
Solution Calculations for Celecoxib / C17H14F3N3O2S Directions: Clearly show the setups for your calculations. 1. You wish to prepare 50.0 mL of 2.30 x 10–2 M solution of your drug. Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that your drug dissolves in water, at least to the extent necessary for this problem.) Show any required calculations you would need to make. 2. Calculate how...
Write legibly. Show your work for full credit. All calculations should be performed for an aqueous...
Write legibly. Show your work for full credit. All calculations should be performed for an aqueous solution at a temperature of 25 °C. 1. Calculate the pH after the addition of 0.00, 10.00, 25.00, 40.00, 45.00 ,50.00, 51.00, 55.00, 60.00, and 70.00 mL of 0.1000 M of HCl in the titration of 50.00 mL of 0.1000 M NaOH.. 2. Make a graph of pH versus the volume of HCl added. (Use Excel Spread Sheet)
Section: Due Date: 10/31/19 INSTRUCTION: Give your answers in the space provided. You MUST show your...
Section: Due Date: 10/31/19 INSTRUCTION: Give your answers in the space provided. You MUST show your calculations to get credit. ++++++ ++++++++++++++++++++++++++++++ +++++++++++++++++ 1. Calculate the mass (in g) of AgCl that can be formed from the reaction of 85.0 mL of 0.110 M MgCl, solution with 65.0 mL of a 0.150 M AgC,H,O, solution. (2 Pts.) MgCl2(aq) + AgC,H,O,(aq) AgCl(s) + Mg(C,H,02), (aq) 2. Calculate the molarity of a solution prepared by dissolving 2.500 g of Na2CO, in water...
please show work so: 1 ml stock 10 ml final -0.5 mL of stock -5 ml...
please show work
so: 1 ml stock 10 ml final -0.5 mL of stock -5 ml final volume While I have used 1:10 as a standard the same rules apply for all dilution factors. Try these problems: x 0.5 X0.5 1. You need to make a 1:25 dilution factor. If you final volume is 25 mL this means that you need_ _mL of stock and mL of solvent to make your final volume of 25 mL. 2. If you needed...
You must show your work to get full credit for the problem solving questions below. Partial...
You must show your work to get full credit for the problem solving questions below. Partial credit will be given for partial work. 1. A 150-ml solution contains 55 g of C,H,OH as a solute. What is the molarity of the solution? C2 points) 2. What is the molality of a solution prepared by dissolving 40.0 g of NaCl in 400 g of water? (2 points) 3. You are asked to prepare a 350 mL standard solution of 0.25M NaOH....
Name Solution Calculations Directions: Clearly show the setups for your calculations. 1. You wish to prepare 50.0 mL of 2.30x 102 M solution of your drug. Describe how to prepare this solution fr...
Name Solution Calculations Directions: Clearly show the setups for your calculations. 1. You wish to prepare 50.0 mL of 2.30x 102 M solution of your drug. Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that your drug dissolves in water, at least to the extent necessary for this problem.) Use complete sentences in your description of the solution preparation process. Show any required calculations you...
Question 21 6 pts Please show your work for full credit. Platinum-170 has a half-life of...
Question 21 6 pts Please show your work for full credit. Platinum-170 has a half-life of 14.0 ms. How long in milliseconds) would it take for a sample of 170Pt to become 75.0 % decayed? D Question 22 9 pts Please show your work for full credit. For the following reaction: + HBr = ? A. (4 pts) Name the organic reactant. B. (5 pts) Provide the structure of the product (Note: You must clearly draw this on your paper...
Important equations for making up solutions Weight of solute (g) = formula weight of solute (g/mole)...
Important equations for making up solutions Weight of solute (g) = formula weight of solute (g/mole) x molarity (mol/l) x final volume (L) C1V1 = C2V2 How to make solutions Choose the correct formula from above. Please show all the steps and be sure to clearly show what values are being using relating to the formula. Serial Dilution Technique: Starting with your solution of 2mM KMnO4, make 6 ml of each of the following concentrations: 1.0 mM, 0.5mM, 250 µM,...
completely with units and show your work for full credit. Complete on this sheet or on a separate piece of paper, but do not complete in your lab notehook For each question, clearly indicate the name and the amount of EACH solute AND the amount of solvent (using proper units gms or mls, unless otherwise indicated) that you would use to prepare the solution. Assume water is the solvent if not indicated. 2 pts will be earned for showing your...
4) Show your work to get full credit. (a) How much in g) sodium acetate (CH3COONa) must be added to 100 mL 0.1 M CH3COOH solution to prepare a buffer solution with pH 4.90? (assume no change in volume) (b) What will be the pH of the final solution if 2.50 x 10 mol HCl solution is added to the buffer solution above? (c) What will be the pH of the solution if 2.00 x 10 mol NaOH solution is...
Write legibly. Show your work for full credit. All calculations should be performed for an aqueous solution at a temperature of 25 °C. 1. Calculate the pH after the addition of 0.00, 10.00, 25.00, 40.00, 45.00 ,50.00, 51.00, 55.00, 60.00, and 70.00 mL of 0.1000 M of HCl in the titration of 50.00 mL of 0.1000 M NaOH.. 2. Make a graph of pH versus the volume of HCl added. (Use Excel Spread Sheet)
Section: Due Date: 10/31/19 INSTRUCTION: Give your answers in the space provided. You MUST show your calculations to get credit. ++++++ ++++++++++++++++++++++++++++++ +++++++++++++++++ 1. Calculate the mass (in g) of AgCl that can be formed from the reaction of 85.0 mL of 0.110 M MgCl, solution with 65.0 mL of a 0.150 M AgC,H,O, solution. (2 Pts.) MgCl2(aq) + AgC,H,O,(aq) AgCl(s) + Mg(C,H,02), (aq) 2. Calculate the molarity of a solution prepared by dissolving 2.500 g of Na2CO, in water...
please show work
so: 1 ml stock 10 ml final -0.5 mL of stock -5 ml final volume While I have used 1:10 as a standard the same rules apply for all dilution factors. Try these problems: x 0.5 X0.5 1. You need to make a 1:25 dilution factor. If you final volume is 25 mL this means that you need_ _mL of stock and mL of solvent to make your final volume of 25 mL. 2. If you needed...
You must show your work to get full credit for the problem solving questions below. Partial credit will be given for partial work. 1. A 150-ml solution contains 55 g of C,H,OH as a solute. What is the molarity of the solution? C2 points) 2. What is the molality of a solution prepared by dissolving 40.0 g of NaCl in 400 g of water? (2 points) 3. You are asked to prepare a 350 mL standard solution of 0.25M NaOH....
Name Solution Calculations Directions: Clearly show the setups for your calculations. 1. You wish to prepare 50.0 mL of 2.30x 102 M solution of your drug. Describe how to prepare this solution from the pure drug and deionized water. Analytical balances and volumetric flasks are available to you. (Assume that your drug dissolves in water, at least to the extent necessary for this problem.) Use complete sentences in your description of the solution preparation process. Show any required calculations you...
Question 21 6 pts Please show your work for full credit. Platinum-170 has a half-life of 14.0 ms. How long in milliseconds) would it take for a sample of 170Pt to become 75.0 % decayed? D Question 22 9 pts Please show your work for full credit. For the following reaction: + HBr = ? A. (4 pts) Name the organic reactant. B. (5 pts) Provide the structure of the product (Note: You must clearly draw this on your paper...
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