Calculate the molalities of some commercial reagents from the following data: (Assume 100 g of solution.)...
Calculate the molalities of some commercial reagents from the following data:
(Assume 100 g of solution.)
| Data | HCl(aq) | NH3(aq) |
| Formula weight (g/mol) | 36.465 | 17.03 |
| Density of solution (g/mL) | 1.19 | 0.90 |
| Weight % | 30.2 | 26.4 |
| Molarity | 11.3 | 14.4 |
Molality of HCl(aq)
Molality of NH3(aq)
Homework Answers
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Calculate the molalities of some commercial reagents from the
following data:
(Assume 100 g of
solution.)...
Calculate the molalities of some commercial reagents from the following data:
Calculate the molalities of some commercial reagents from the following data:
Commercial concentrated aqueous ammonia is 28.0% NH3 by mass. What volume of this solution contains 100.g...
Commercial concentrated aqueous ammonia is 28.0% NH3 by mass. What volume of this solution contains 100.g of NH3? (Density = 0.900 g/mL) 0 397 ml O 357 ml 0 28.0 mL 25.2 mL 321 ml 595 mL
2. Use the data of Part B for the reaction between NH3 (aq) and HCl (aq),...
2. Use the data of Part B for the reaction between NH3 (aq) and HCl (aq), and equation 2 to determine: AH for each run in kJ (AHA), AH per mole of limiting reagent for each run, and the average AH/mol of limiting reagent. Assume that the specific heat capacity of the solution is 4.184 J/gºC, the final volume is 100.0 mL, and the density is 1.03 g/mL. Show one sample calculation in the space below. Run # 1 Run...
71. A solution of nitric acid has a density of 1.5 g/mL and is 20% by...
71. A solution of nitric acid has a density of 1.5 g/mL and is 20% by weight HNO3. a. What is the molarity of this solution of HNO;? b. What volume of this solution should be taken in order to prepare of 5.0 L of a solution of 0.15 M nitric acid by dilution with water? In order to obtain a precise concentration, the 0.15 M HNO solution is standardized against pure Hgo (molar mass = 216.59 g/mol) by titrating...
- Based on your titration data and calculations for determination 1: (1) Calculate the volume of...
- Based on your titration data and calculations for determination 1: (1) Calculate the volume of Na2S2O3 solution required had you transferred commercial bleaching solution instead of diluted bleaching solution to Erlenmeyer flask 1. ANALON16: Determining the Percent Sodium Hypochleise in Commercial Bleaching Solutions Data Sheet brand name of commercial bleaching solution cost of commercial bleaching solution per gallon density of commercial bleaching solution, g mL-' clorca $2.25 7.05% 10mL olume of commercial bleaching solution diluted to 100 mL, mL...
29. You have the following concentrated commercial reagents on hand; make 1 L of a 6...
29. You have the following concentrated commercial reagents on hand; make 1 L of a 6 N reagent from each of them. What is the molarity of each concentrated reagent? How to make it? NFLOH sp. gr. = 0.90; 58% assay (V=1) H(CH3C00) sp. gr. = 1.05; 99% assay (v-1) 30. How much 0.02 N HSO, can you make from 200 mL of 4N HSO.? 31. How much Cuso, 8H20 will you need to weigh out to substitute for 120...
how do you determine the molarity of the diluted hcl solution from the data in the...
how do you determine the molarity of the diluted hcl
solution from the data in the table?
.1M Naoh
how do you determine the molarity of the original hcl solution from
the diluted solution?
Show one set of calculations for the determination of the molarity of the diluted HC Partner Name DATA-PARTI in the puce me the balanceschewiowywarin the machine HC with below 9 - - 1 in the table hele anul asterisk. Im maculated Trial 4 Show your calculation...
Given the following data: Solution Conc. (M) Volume (mL) Tinitial (ºC) Tfinal (ºC) NaOH 0.750 50.00...
Given the following data: Solution Conc. (M) Volume (mL) Tinitial (ºC) Tfinal (ºC) NaOH 0.750 50.00 19.84 23.18 HCl 0.500 50.00 19.84 Calculate ∆Hº for the reaction: HCl(aq) + NaOH(aq) → H2O(l) + NaCl(aq) You may assume all solutions to have the same density and specific heat as water (1.00 g/mL and 4.184 J/gºC) Answer in kJ/mol
help on number 3 here is lab we did EXPERIMENT 19 An Analysis of Commercial Antacids...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
I need it right now, please help me?? PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The...
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
Calculate the molalities of some commercial reagents from the following data:
Commercial concentrated aqueous ammonia is 28.0% NH3 by mass. What volume of this solution contains 100.g of NH3? (Density = 0.900 g/mL) 0 397 ml O 357 ml 0 28.0 mL 25.2 mL 321 ml 595 mL
2. Use the data of Part B for the reaction between NH3 (aq) and HCl (aq), and equation 2 to determine: AH for each run in kJ (AHA), AH per mole of limiting reagent for each run, and the average AH/mol of limiting reagent. Assume that the specific heat capacity of the solution is 4.184 J/gºC, the final volume is 100.0 mL, and the density is 1.03 g/mL. Show one sample calculation in the space below. Run # 1 Run...
71. A solution of nitric acid has a density of 1.5 g/mL and is 20% by weight HNO3. a. What is the molarity of this solution of HNO;? b. What volume of this solution should be taken in order to prepare of 5.0 L of a solution of 0.15 M nitric acid by dilution with water? In order to obtain a precise concentration, the 0.15 M HNO solution is standardized against pure Hgo (molar mass = 216.59 g/mol) by titrating...
- Based on your titration data and calculations for determination 1: (1) Calculate the volume of Na2S2O3 solution required had you transferred commercial bleaching solution instead of diluted bleaching solution to Erlenmeyer flask 1. ANALON16: Determining the Percent Sodium Hypochleise in Commercial Bleaching Solutions Data Sheet brand name of commercial bleaching solution cost of commercial bleaching solution per gallon density of commercial bleaching solution, g mL-' clorca $2.25 7.05% 10mL olume of commercial bleaching solution diluted to 100 mL, mL...
29. You have the following concentrated commercial reagents on hand; make 1 L of a 6 N reagent from each of them. What is the molarity of each concentrated reagent? How to make it? NFLOH sp. gr. = 0.90; 58% assay (V=1) H(CH3C00) sp. gr. = 1.05; 99% assay (v-1) 30. How much 0.02 N HSO, can you make from 200 mL of 4N HSO.? 31. How much Cuso, 8H20 will you need to weigh out to substitute for 120...
how do you determine the molarity of the diluted hcl
solution from the data in the table?
.1M Naoh
how do you determine the molarity of the original hcl solution from
the diluted solution?
Show one set of calculations for the determination of the molarity of the diluted HC Partner Name DATA-PARTI in the puce me the balanceschewiowywarin the machine HC with below 9 - - 1 in the table hele anul asterisk. Im maculated Trial 4 Show your calculation...
help on number 3 here is lab we did
EXPERIMENT 19 An Analysis of Commercial Antacids Rolaids Alka Seltzer OBJECTIVES: Determine the per gram neutralizing ability of a commercial antacio Determine the per gram neutralizing ability of sodium bicarbonate Compare the effectiveness of several antacids. INTRODUCTION: "How do you spell relief two hecimie The parietal cells in the stomach secrete sufficient hydrochloric aci 0.10 M The flow of HCl increases when food enters the stomach and so acid secrete sufficient...
I
need it right now, please help me??
PROCEDURE PART I: DILUTING THE VINEGAR SOLUTION The vinegar solution must be diluted by a factor of 5 to be suitable for titration. 1. Obtain - 20 ml of the stock vinegar solution from the fume hood. 2. Using the 10-ml. pipet, pipet" 10 mL of the stock solution to a 50-ml volumetric flask. 3. Fill the volumetric flask to the calibration line with distilled water. Be sure not to go over...
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