I'm having trouble with these questions from the lab: polyprotic acids: titration of phosphoric acid and...
I'm having trouble with these questions from the lab: polyprotic acids: titration of phosphoric acid and determination of the molar concentration of phosphoric acid in cola.
3.A student titrated 25.00 mL of cola and it required 18.27 mL of 0.0100 M NaOH to reach the 1st equivalence point. Calculate the molar concentration of phosphoric acid in this brand of cola.
4. If the density of the "Cola" drink is 1.00 g/mL. What is the mass percent of phosphoric acid in a can of Cola. Show calculations.
The volume of the soda in the can is 1L
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I'm having trouble with these questions from the lab: polyprotic
acids: titration of phosphoric acid and...
Acid-base titration questions. Please help! Thanks. 2. Given that 20.00 mL of phosphoric acid solution required...
Acid-base titration questions. Please help! Thanks.
2. Given that 20.00 mL of phosphoric acid solution required 15.50 mL of 0.200M NaOH for the first equivalent point. What is the molarity of the phosphoric acid? 3. A student titrated 25.00 mL of cola and it required 18.27 mL of 0.0100 M NaOH to reach the 1'equivalence point. Calculate the molar concentration of phosphoric acid in this brand of cola. 4. If the density of the "Cola" drink is 1.00 g/mL. What...
Titration Curves of Polyprotic Acids Pre-lab Questions Before beginning this experiment in the laboratory, you should...
Titration Curves of Polyprotic Acids Pre-lab Questions Before beginning this experiment in the laboratory, you should be able to answer the following questions. 1. What is a polyprotic acid? 2. If 10.70 mL of 0.105 M NaOH is required to reach the first equivalence point of a solution of citric acid (H,C H307), how many milliliters of NaOH are required to completely neutralize this solution? 3. How many millimoles of NaOH will react completely with 50 mL of 1.5 MH,C20,?...
Name Desk Date, Laboratory Instructor Titration Curves of 26 Pre-lab Polyprotic Acids Questions t...
Name Desk Date, Laboratory Instructor Titration Curves of 26 Pre-lab Polyprotic Acids Questions tory, you should be able to answer the Before beginning this experiment in the labora following questions. 1. What is a polyprotic acid? If 10.7 mL of 0.105 M NaOH is required to reach the first equivalence point of a solution of citric acid (H,CH,O,), how many milliliters of NaOH are required to completely neutralize this solution? 2. 3. How many millimoles of NaOH will react completely...
1. A student is performing a titration in lab. A sample of phosphoric acid with a...
1. A student is performing a titration in lab. A sample of phosphoric acid with a volume of 12.05 mL requires 33.21 mL of 0.173 M potassium hydroxide to reach the equivalence point. a. Write the balanced equation for this reaction, including phase labels. b. What is the concentration of the phosphoric acid?
Homework Acids and Bases Name: 1) Write in the products for this acid-base neutralization reaction, then...
Homework Acids and Bases Name: 1) Write in the products for this acid-base neutralization reaction, then balance the equation. HBr(aq) + Ca(OH)2(aq) → 2) A 8.00-ml sample of an H.PO, solution of unknown concentration is titrated with a 0.2090 M NaOH solution. A volume of 6.12 mL of the NaOH solution was required to reach the equivalence point. What is the concentration of the unknown H3PO4 solution? 3 NaOH + H3PO4 → Na3PO4 + 3 H20 3) What volume in...
Part 3: Working with the Titration Curve for a Polyprotic Acid and Strong Base Consider carbonic...
Part 3: Working with the Titration Curve for a Polyprotic Acid and Strong Base Consider carbonic acid, H.CO, (which is polyprotic) - a) Write the multi-step dissociation equilibrium for this acid in water (ie, there should be three chemical dissociation stages connected by two equilibrium arrows, given below): b) Below is an idealized titration curve showing the exhibited pH for 25.00 mL of a 0.100 M aqueous carbonic acid solution as a function of added 0.100 M NaOH in units...
Please here is my lab questions for titration of weak acid. The questions are very short....
Please here is my lab questions for titration of weak acid. The
questions are very short. You have to determine the answers by just
looking at the graph based on the data points. Please give me the
answers of all of them. I would really appreciate. Please calculate
the molar mass question #7 as well. It will be of great help to
me.
Mass of the unknown acid: 0.2grams
Concentration of NaOH = 0.0500M
Formuld Bal pH of weak acid...
Titration of 25.00 mL of an unknown diprotic acid solution required 15.09 mL of 0.10 M...
Titration of 25.00 mL of an unknown diprotic acid solution required 15.09 mL of 0.10 M NaOH to reach the first equivalence point and 29.82 mL of 0.10 M NaOH to reach the second equivalence point. What is the concentration of the diprotic acid solution?
NORTHERN MICHIGAN UNIVERSITY CH112: Acid-Base Titration: Determining the Concentration of an Acid Solution Student Name: PRE-LAB...
NORTHERN MICHIGAN UNIVERSITY CH112: Acid-Base Titration: Determining the Concentration of an Acid Solution Student Name: PRE-LAB (to be checked by the instructor before beginning the lab) 1. A 10.0 mL sample of hydrochloric acid is diluted by adding 50 mL of deionized water, and then titrated with a 0.1245 M solution of sodium hydroxide. If 26.75 mL of the sodium hydroxide solution are required to reach the equivalence point, what is the concentration of the original hydrochloric acid solution? 2....
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1....
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1. What is a diprotic acid? (1 pt) 2. Give the balanced chemical reaction for the titration of oxalic acid with NaOH. (1 pts) OH HO- 3. When titrating 25.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the first equivalence point? How many mL of NaOH will you have added to reach...
Acid-base titration questions. Please help! Thanks.
2. Given that 20.00 mL of phosphoric acid solution required 15.50 mL of 0.200M NaOH for the first equivalent point. What is the molarity of the phosphoric acid? 3. A student titrated 25.00 mL of cola and it required 18.27 mL of 0.0100 M NaOH to reach the 1'equivalence point. Calculate the molar concentration of phosphoric acid in this brand of cola. 4. If the density of the "Cola" drink is 1.00 g/mL. What...
Titration Curves of Polyprotic Acids Pre-lab Questions Before beginning this experiment in the laboratory, you should be able to answer the following questions. 1. What is a polyprotic acid? 2. If 10.70 mL of 0.105 M NaOH is required to reach the first equivalence point of a solution of citric acid (H,C H307), how many milliliters of NaOH are required to completely neutralize this solution? 3. How many millimoles of NaOH will react completely with 50 mL of 1.5 MH,C20,?...
Name Desk Date, Laboratory Instructor Titration Curves of 26 Pre-lab Polyprotic Acids Questions tory, you should be able to answer the Before beginning this experiment in the labora following questions. 1. What is a polyprotic acid? If 10.7 mL of 0.105 M NaOH is required to reach the first equivalence point of a solution of citric acid (H,CH,O,), how many milliliters of NaOH are required to completely neutralize this solution? 2. 3. How many millimoles of NaOH will react completely...
Homework Acids and Bases Name: 1) Write in the products for this acid-base neutralization reaction, then balance the equation. HBr(aq) + Ca(OH)2(aq) → 2) A 8.00-ml sample of an H.PO, solution of unknown concentration is titrated with a 0.2090 M NaOH solution. A volume of 6.12 mL of the NaOH solution was required to reach the equivalence point. What is the concentration of the unknown H3PO4 solution? 3 NaOH + H3PO4 → Na3PO4 + 3 H20 3) What volume in...
Part 3: Working with the Titration Curve for a Polyprotic Acid and Strong Base Consider carbonic acid, H.CO, (which is polyprotic) - a) Write the multi-step dissociation equilibrium for this acid in water (ie, there should be three chemical dissociation stages connected by two equilibrium arrows, given below): b) Below is an idealized titration curve showing the exhibited pH for 25.00 mL of a 0.100 M aqueous carbonic acid solution as a function of added 0.100 M NaOH in units...
Please here is my lab questions for titration of weak acid. The
questions are very short. You have to determine the answers by just
looking at the graph based on the data points. Please give me the
answers of all of them. I would really appreciate. Please calculate
the molar mass question #7 as well. It will be of great help to
me.
Mass of the unknown acid: 0.2grams
Concentration of NaOH = 0.0500M
Formuld Bal pH of weak acid...
NORTHERN MICHIGAN UNIVERSITY CH112: Acid-Base Titration: Determining the Concentration of an Acid Solution Student Name: PRE-LAB (to be checked by the instructor before beginning the lab) 1. A 10.0 mL sample of hydrochloric acid is diluted by adding 50 mL of deionized water, and then titrated with a 0.1245 M solution of sodium hydroxide. If 26.75 mL of the sodium hydroxide solution are required to reach the equivalence point, what is the concentration of the original hydrochloric acid solution? 2....
PRE-LABORATORY QUESTIONS TITRATION OF A DIPROTIC ACID Name Laboratory Instructor Day and time lab meets 1. What is a diprotic acid? (1 pt) 2. Give the balanced chemical reaction for the titration of oxalic acid with NaOH. (1 pts) OH HO- 3. When titrating 25.0 mL of 0.10 M H2SO4 with 0.10 M NaOH, how many mL of NaOH will you have added to reach the first equivalence point? How many mL of NaOH will you have added to reach...
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