Homework Answers
Dilution law is
M1V1 = M2V2
Given that
molarity of stock solution = M1 = 6 M
Molarity of diluted solution = 0.2 M
Volume of the diluted solution = 500 mL
We know that
M1V1 = M2V2
V1 = 0.2 M * 500 mL / 6 M = 16.67 mL
Volume of stock NaOH solution required = 16.67 mL
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Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1. Consider the reaction of sulfuric acid, H,SO., with sodium hydroxide, NaOH. H2SO (aq) + 2NaOH(aq) → 2 H2O(l) + Na:SO (aq) Suppose a beaker contains 35.0 ml of 0.175 MH SO. How many moles of NaOH are needed to react completely with the sulfuric acid? 2. In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36,03 mL of 0.0980...
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Show ALL your calculations and the respective dissociation equations for each step. Assignments without calculations or...
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To receive credit, you must show your work. STAPLE all pages before submitting your homework. Problems will be selected at random for grading, but a full answer key will be posted to Blackboard. 1 solids, liquids, and solutions, and intermolecular forces. 1. For each pair of substances, identify which has the highest melting point. For each, briefly explain your reasoning. more molecules combine Joneller, so higher the meltins potht b. dispersion s dpole dipole Hydrogon bond dipola Hydrogen bond Mole...
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please answer 23 and 24
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how much HCL is needed? please show calculations Prepare 500 mL of a 0.1 M HCl...
how much HCL is needed? please show calculations
Prepare 500 mL of a 0.1 M HCl (conc. HCl stock is approx. 12.1 M) solution by diluting the appropriate quantity of conc. HCl with distilled water. Show your instructor the calculation before making the solution. Fill your burette with the HCl solution and standardize it against sodium carbonate as follows.
Experiment 11: Titration Pre-Lab Report Sheet Name Lab Section: Show your work for any calculations. 1. Consider the reaction of sulfuric acid, H,SO., with sodium hydroxide, NaOH. H2SO (aq) + 2NaOH(aq) → 2 H2O(l) + Na:SO (aq) Suppose a beaker contains 35.0 ml of 0.175 MH SO. How many moles of NaOH are needed to react completely with the sulfuric acid? 2. In the titration of total acid with sodium hydroxide, NaOH, it was determined that 36,03 mL of 0.0980...
Show ALL your calculations and the respective dissociation equations for each step. Assignments without calculations or assignments that are submitted late are not going to be graded 1) Calculate the pH in the titration of 50,00 ml of 0.060 M hypochlorous acid (HCIO) with a 0.120 M sodium hydroxide, NaOH solution after the addition of the following volumes of base: Ka for hypochlorous acid = 2.9 x 10-8 A) 0 mL pH = B) 12.5 mL pH = C) 25.0...
Show ALL your calculations and the respective dissociation equations for each step. Assignments without calculations or assignments that are submitted late are not going to be graded. 1) Calculate the pH in the titration of 50.00 mL of 0.060 M hypochlorous acid (HCIO) with a 0.120 M sodium hydroxide, NaOH solution after the addition of the following volumes of base: Ka for hypochlorous acid = 2.9 x 10-8 A) 0 mL pH = pH = _ 7.5 B) 12.5 mL...
To receive credit, you must show your work. STAPLE all pages before submitting your homework. Problems will be selected at random for grading, but a full answer key will be posted to Blackboard. 1 solids, liquids, and solutions, and intermolecular forces. 1. For each pair of substances, identify which has the highest melting point. For each, briefly explain your reasoning. more molecules combine Joneller, so higher the meltins potht b. dispersion s dpole dipole Hydrogon bond dipola Hydrogen bond Mole...
please answer 23 and 24
*please show all work and calculations *
given temperature foart em to reach equilibrium e con 15) Pure Solic and pure liquide are excluded from equilibrium constant pre Cheric £69 kg 19) If a reaction is endothermic, the reaction temperature results in an ineren 20) A solution of ammonia is 2.0% ionized at 25.0 °C. What was the original concentration in M) of the ammonia solution? The Kb at 25.0 °C for ammonia is 1.8...
How
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320899 1 To receive credit, you must show your work. STAPLE all pages before submitting your hamework Problems will be selected at random for grading, but a full answer key will be posted to Blackboard. 1. Below is a nanodragster. YES, we can make machines-cars, even-at the nano- scale, the sizes of molecules. This little nanodragster has some nifty features. Its chassis is rigid like the chassis of a real car....
Calculations The following calculations are necessary to complete your Report Sheet. Consult the table on page 119 for appropriate K and K, values. Complete these calculations on your Report Sheet for complete credit. I. pH of Strong and Weak Acids 1. Calculate the pH of a 0.10 M hydrochloric acid solution, HCl(aq). 2. Calculate the pH of a solution prepared by diluting 5.00 mL of 0.10 M hydrochloric acid, HCl (aq), in enough water to make a 50.0 mL solution....
Show All Your Work NEATLY!! With EXPLAINATIONS! CARE MORE ABOUT
YOUR WORK THAN THE ANSWERS! Answers are 12.61, 2.16, and 3.91
respectively!
5. Calculate the pH of 250. mL of a 0.0205 M barium hydroxide solution at 25°C. 6. What mass of NaOH should be added to 745 mL of water at 25°C to produce a solution with pH = 9.86? 7. 100.0 mL of a strong acid solution has pH = 3.665. What is the pH of the solution...
QUESTIONS (Show your work) 1. 1, In a titration experiment, 0.250 M KOH is added from a buret to 27.4 mL of a 0.154 M HSO, solution and reacts according to the equation: H;SO. (aq)- 2 KOH (aq) -- K.SO. (aq)+ 2 HO (aq) How many milliliters of potassium hydroxide solution have been added at the equivalence point (end point)? 2. In a titration experiment,, 0.375 M NaOH is added from a buret to 31.2 mL of a 0.482 M...
how much HCL is needed? please show calculations
Prepare 500 mL of a 0.1 M HCl (conc. HCl stock is approx. 12.1 M) solution by diluting the appropriate quantity of conc. HCl with distilled water. Show your instructor the calculation before making the solution. Fill your burette with the HCl solution and standardize it against sodium carbonate as follows.
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