1. You made a 0.3% KCl solution in Professor Fiorni’s lab but need to determine the...
1. You made a 0.3% KCl solution in Professor Fiorni’s lab but need to determine the Molarity of it for a paper. (MW of KCl is 74.55 g/mol)
2. You are working as a research technician for Pfizer and in your lab, one solution of hydrochloric acid has a pH of 3.2, while another solution of sodium hydroxide has a pH of 9.7. Calculate the concentration of hydrogen ions in each solution.
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1. You made a 0.3% KCl solution in Professor Fiorni’s lab but
need to determine the...
Two solutions of sodium hydroxide are in storage at a lab. One has a concentration of...
Two solutions of sodium hydroxide are in storage at a lab. One has a concentration of hydrogen ions of 3.5x10-11, while the other has a concentration of 7.8x10-10. What are their pHs and which solution is more basic? You made a 0.3% KCl solution in Professor Forni’s lab but need to determine the Molarity of it for a paper. (MW of KCl is 74.55 g/mol)
Page 12 of 12 BG10.2 Acid-Base Titration s part of a lab exam, your instructor gives...
Page 12 of 12 BG10.2 Acid-Base Titration s part of a lab exam, your instructor gives you a sample of hydrochloric acid and asks you to ermine its concentration using the procedure in this lab. You make up a solution of sodium hydroxide droxide by dissolving 2.0 g of sodium hydroxide pellets in water and diluting it to exactly 500 me. You then titrate your sodium hydroxide solution three times with a hydrochloric acid solution with a molarity of 0.1024...
Standardization of a Sodium Hydroxide Solution Section Name Score Date Post-lab Assignment 1. Calculate the molarity...
Standardization of a Sodium Hydroxide Solution Section Name Score Date Post-lab Assignment 1. Calculate the molarity of a barium hydroxide solution if you used 41.65 mL of it to neutralize 1.190 g of potassium hydrogen phthalate. Ba(OH)2(aq) + 2 KHC4H6O4(aq) + BaC,H,O4(aq) + K2CH4O4(aq) + 2 H300) 2. Write a balanced chemical equation for the reaction of hydrochloric acid with sodium hydroxide. 3. Calculate the molarity of a hydrochloric acid solution if 34.21 mL of 0.0431M sodium hydroxide neutralizes 25.00...
Page 12 of 12 BG10.2 Acid-Base Titration As part of a lab exam, your instructor gives...
Page 12 of 12 BG10.2 Acid-Base Titration As part of a lab exam, your instructor gives you a sample of hydrochloric acid and asks you to determine its concentration using the procedure in this lab. You make up a solution of sodium hydroxide by dissolving 2.0 g of sodium hydroxide pellets in water and diluting it to exactly 500 mL You then titrate your sodium hydroxide solution three times with a hydrochloric acid solution with a molarity of 0.1024 molliter....
Titration: Acids and Bases 2. How can you determine which acid is diprotic? 3. using the...
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
You need to neutralize a solution of an unknown concentration of sodium hydroxide before you can...
You need to neutralize a solution of an unknown concentration of sodium hydroxide before you can dispose of it. In the lab, you have a 5.0M bottle of hydrochloric acid, however, you want to dilute that first to use a less concentrated (and less dangerous) solution. So, you decide to use a 0.1M solution of hydrochloric acid solution and to make 2.0 litres of it. (a) Show all calculations for how you would do this. (b) Once you have your...
Standardization of NaOH: Acid Base Titration Objective: In this lab, you will accurately determine the concentration...
Standardization of NaOH: Acid Base Titration Objective: In this lab, you will accurately determine the concentration of a solution of sodium hydroxide (NaOH) using a 0.500M potassium hydrogen phthalate (KHP) standard solution. Background: Acid–Base Titrations When an acid reacts with a base, a neutralization reaction occurs. The H+ ions from the acid and the HO– ions from the base combine to form water and are therefore neutralized. The other product of reaction is a salt. For example, hydrochloric acid reacts...
Need help calculating molatity if the solution in the lab listed below. 4. Place a weigh...
Need help calculating molatity if the solution in the lab listed below. 4. Place a weigh boat on the scale. Tare the scale and then weigh out approximately 4.1 g of sodium acetate. 5. Record the exact mass (if you were slightly off from 4.1, that’s fine…just write down the actual value so the math is not incorrect later) of the sodium acetate in your lab notes. 6. Transfer the sodium acetate into a 100 mL beaker. 7. Use a...
how many milliequivalents? what is the osmolarity of this solution? A 66 kg patient is in need of intravenous ir...
how many milliequivalents?
what is the osmolarity of this solution?
A 66 kg patient is in need of intravenous iron supplementation. She was ordered to receive a single intravenous 5 mg/kg dose of iron (III) sulfate (ferric sulfate - Fe2(SO4)3 - MW=399.88 g/mol). Iron (III) sulfate was prepared as a stabilized aqueous solution for this patient by dissolving 750 mg of stabilized iron sulfate salt in water to produce 25 mL of solution. How many milliequivalents of iron (Fe 3+)...
Worksheet 2 2. Calculate the concentration of each of the following solutions. Determine the molarity (mol/L)...
Worksheet 2 2. Calculate the concentration of each of the following solutions. Determine the molarity (mol/L) of a solution made by diluting 5.880 g of barium chloride to a final volume of 525.0 mL a. b. What is the molarity of a solution that dilutes 12.50 mL of 6.00 M HCI (hydrochloric acid) to a final volume of 1.50 L? If you combine 1.55 g of NH CI (ammonium chloride) with 2.38 g of CaCl, (calcium chlo- ride) and dilute...
Page 12 of 12 BG10.2 Acid-Base Titration s part of a lab exam, your instructor gives you a sample of hydrochloric acid and asks you to ermine its concentration using the procedure in this lab. You make up a solution of sodium hydroxide droxide by dissolving 2.0 g of sodium hydroxide pellets in water and diluting it to exactly 500 me. You then titrate your sodium hydroxide solution three times with a hydrochloric acid solution with a molarity of 0.1024...
Standardization of a Sodium Hydroxide Solution Section Name Score Date Post-lab Assignment 1. Calculate the molarity of a barium hydroxide solution if you used 41.65 mL of it to neutralize 1.190 g of potassium hydrogen phthalate. Ba(OH)2(aq) + 2 KHC4H6O4(aq) + BaC,H,O4(aq) + K2CH4O4(aq) + 2 H300) 2. Write a balanced chemical equation for the reaction of hydrochloric acid with sodium hydroxide. 3. Calculate the molarity of a hydrochloric acid solution if 34.21 mL of 0.0431M sodium hydroxide neutralizes 25.00...
Page 12 of 12 BG10.2 Acid-Base Titration As part of a lab exam, your instructor gives you a sample of hydrochloric acid and asks you to determine its concentration using the procedure in this lab. You make up a solution of sodium hydroxide by dissolving 2.0 g of sodium hydroxide pellets in water and diluting it to exactly 500 mL You then titrate your sodium hydroxide solution three times with a hydrochloric acid solution with a molarity of 0.1024 molliter....
Titration: Acids and Bases
2. How can you determine which acid is diprotic?
3. using the answers to questions one and two, which acid is
diprotic?
4. Which base has more hydroxide ions per molecule?
Acid Volume Base Base Initial Volume (mL) Base Final Volume (mL) Volume of Base Used (mL) Acid: Base Ratio Acid 1 20 mL Base 1 50 mL 34.5 15.5 4:3 Acid 2 20 mL Base 1 Acid 1 20 mL Base 2 Acid 2 20...
how many milliequivalents?
what is the osmolarity of this solution?
A 66 kg patient is in need of intravenous iron supplementation. She was ordered to receive a single intravenous 5 mg/kg dose of iron (III) sulfate (ferric sulfate - Fe2(SO4)3 - MW=399.88 g/mol). Iron (III) sulfate was prepared as a stabilized aqueous solution for this patient by dissolving 750 mg of stabilized iron sulfate salt in water to produce 25 mL of solution. How many milliequivalents of iron (Fe 3+)...
Worksheet 2 2. Calculate the concentration of each of the following solutions. Determine the molarity (mol/L) of a solution made by diluting 5.880 g of barium chloride to a final volume of 525.0 mL a. b. What is the molarity of a solution that dilutes 12.50 mL of 6.00 M HCI (hydrochloric acid) to a final volume of 1.50 L? If you combine 1.55 g of NH CI (ammonium chloride) with 2.38 g of CaCl, (calcium chlo- ride) and dilute...
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