The Question Is: "A student weighs 0.347 g of KHP on a laboratory balance
"A student weighs 0.347 g of KHP on a laboratory balance. The KHP was titrated with NaOH and the concentration of the NaOH determined to be 0.110 M. For the second titration, the student correctly diluted 6 M HCl from the reagent shelf using a graduated cylinder to obtain approximately 0.6 M HCl. This solution was titrated with the original NaOH solution. The student calculated the concentration of NaOH from the experiment to be 0.099 M. In which experiment should the student be more confident of the concentration of the NaOH solution? Why?"
I believe the second titration would be more accurate due to it being titrated with the original amount of NaOH and so im assuming that its concentration would yield a better result. Would that be the case, is there anything im neglecting?
Homework Answers
Add Answer to:
The Question Is:
"A student weighs 0.347 g of KHP on a laboratory balance
EXPERIMENT 10 ACID AND BASE TITRATION 2 Post - Laboratory Questions 1. Student A weighs 0.747...
EXPERIMENT 10 ACID AND BASE TITRATION 2 Post - Laboratory Questions 1. Student A weighs 0.747 g of KHP on a laboratory balance. The KHP was titrated with an unknown NaOH solution and the concentration of the NaOH was determined to be 0.113 M. Student B diluted 6 M HCl from the reagent shelf using a volumetric flask to obtain 0.6 MHCI. This solution was titrated with the same unknown NaOH solution and found to be 0.104 M. Which student...
A student weighs a sample of potassium hydrogen phthalate (KHP) to prepare a primary standard for...
A student weighs a sample of potassium hydrogen phthalate (KHP) to prepare a primary standard for a titration. She later discovers that the KHP was contaminated with sugar. To determine the amount of KHP in the mixture, she takes 5.942 g of the mixture and make a 100.0 mL solution. The student then titrates 10.00 mL of this solution with a 0.1491 M sodium hydroxide solution. She finds that 13.12 mL of the NaOH solution is needed to reach the...
A student weighs out 0.605g of KHP, dissolves it in 50ml of water and titrates it...
A student weighs out 0.605g of KHP, dissolves it in 50ml of water and titrates it with NaOH, using phenolphalein to determine the end point. If the initial buret reading for the NaOH is 3.50ml and the final buret reading is 27.32ml, What is the concentration of the NaOH solution (in M).
Chemistry I Laboratory Manual, 2019 Revision Questions: 1) What mass of KHP would you need in...
Chemistry I Laboratory Manual, 2019 Revision Questions: 1) What mass of KHP would you need in order to use titrate it? would you need in order to use 35.00 mL of 0.500 M NaOH to 2) A student weighs out 1.051 g of impure KHP, dissolves the sample in deionized water and titrates it with 0.1101 M NaOH solution. If the titration requires 26.10 mL of the NaOH solution, and none of the impurities react with NaOH, what is the...
1. A student carries out a back titration to determine the concentration of ammonium chloride in a solution. The student...
1. A student carries out a back titration to determine the concentration of ammonium chloride in a solution. The student collects 10.80 mL of the original NH4Cl solution and dilutes it to 250.0 mL (we will refer to this as the dilute NH4Cl solution). Then 25.00 mL of the dilute NH4Cl solution are transferred to an Erlenmeyer flask and 25.00 mL of 0.1963 M NaOH are added. Calculate the moles of NaOH added to this Erlenmeyer flask. 2. In the...
105 Chemistry I Laboratory Manual, 2017 Revision Questions: 1) What mass of KHP would you need in order to use 3...
105 Chemistry I Laboratory Manual, 2017 Revision Questions: 1) What mass of KHP would you need in order to use 35.00 mL of 0.400 M NaOH to titrate it? 2) A student weighs out 1,000 g of impure KHP, dissolves the sample in deionized water and titrates it with 0.1101 M NaOH solution. If the titration requires 22.10 mL of the NaOH solution, and none of the impurities react with NaOH, what is the percent KHP in the sample?
2) If a student weighs out 0.500 g o tudent weighs out 0.500 g of KHP...
2) If a student weighs out 0.500 g o tudent weighs out 0.500 g of KHP and titrates it with sodium hydroxide solution, the molarity of the sodium hydroxide solution if it takes 31.21 mL of it to titrate the KHP? It takes 26.61 mL of 0.228 M sodium hydroxide solution to titrate 10.00 mL of sulfuric acid solution. What is the molarity of the sulfuric acid?
The standardization of a sodium hydroxide solution against potassium hydrogen phthalate (KHP) yielded the accompanying results....
The standardization of a sodium hydroxide solution against potassium hydrogen phthalate (KHP) yielded the accompanying results. Mass KHP/g 0.7987 0.8365 0.8104 0.8039 Volume NaOH/mL 38.29 39.96 38.51 38.29 a. Write the balanced equation occurring between HCl(aq) and NaOH(aq). b. It takes 15 mL of 0.125M NaOH to reach the end point of the reaction. How many moles of NaOH have you added? c. What is the mole ratio between HCl and NaOH? How many moles of HCl were in the...
A student prepared a base solution using 7 mL of 6M NaOH diluted with distilled water...
A student prepared a base solution using 7 mL of 6M NaOH diluted with distilled water to a final volume of approximately 400 mL. The student titrated a standardized solution of HCl to determine the exact concentration of the prepared base solution. In the first titration, she found that it took 22.47 mL of the base solution to neutralize 20.00 mL of a 0.98861 M HCl solution. In the second titration, she found that it took 20.12 mL of the...
i need help with these three questions Incorrect Question 2 0/1.25 pts 0.678 g of KHP...
i need help with these three questions
Incorrect Question 2 0/1.25 pts 0.678 g of KHP is used to standardize a NaOH solution. If it took 31.55 mL of NaOH to neutralize the KHP, what is the concentration of the NaOH solution? The molar mass of KHP is 204.22 g/mol. KHP + NaOH --> NaKP + H2O Give the answer to 3 sig figs and use units of M 0.0214 Unanswered Question 3 0/1.25 pts A 25.00 mL HCl sample...
EXPERIMENT 10 ACID AND BASE TITRATION 2 Post - Laboratory Questions 1. Student A weighs 0.747 g of KHP on a laboratory balance. The KHP was titrated with an unknown NaOH solution and the concentration of the NaOH was determined to be 0.113 M. Student B diluted 6 M HCl from the reagent shelf using a volumetric flask to obtain 0.6 MHCI. This solution was titrated with the same unknown NaOH solution and found to be 0.104 M. Which student...
A student weighs a sample of potassium hydrogen phthalate (KHP) to prepare a primary standard for a titration. She later discovers that the KHP was contaminated with sugar. To determine the amount of KHP in the mixture, she takes 5.942 g of the mixture and make a 100.0 mL solution. The student then titrates 10.00 mL of this solution with a 0.1491 M sodium hydroxide solution. She finds that 13.12 mL of the NaOH solution is needed to reach the...
Chemistry I Laboratory Manual, 2019 Revision Questions: 1) What mass of KHP would you need in order to use titrate it? would you need in order to use 35.00 mL of 0.500 M NaOH to 2) A student weighs out 1.051 g of impure KHP, dissolves the sample in deionized water and titrates it with 0.1101 M NaOH solution. If the titration requires 26.10 mL of the NaOH solution, and none of the impurities react with NaOH, what is the...
105 Chemistry I Laboratory Manual, 2017 Revision Questions: 1) What mass of KHP would you need in order to use 35.00 mL of 0.400 M NaOH to titrate it? 2) A student weighs out 1,000 g of impure KHP, dissolves the sample in deionized water and titrates it with 0.1101 M NaOH solution. If the titration requires 22.10 mL of the NaOH solution, and none of the impurities react with NaOH, what is the percent KHP in the sample?
2) If a student weighs out 0.500 g o tudent weighs out 0.500 g of KHP and titrates it with sodium hydroxide solution, the molarity of the sodium hydroxide solution if it takes 31.21 mL of it to titrate the KHP? It takes 26.61 mL of 0.228 M sodium hydroxide solution to titrate 10.00 mL of sulfuric acid solution. What is the molarity of the sulfuric acid?
i need help with these three questions
Incorrect Question 2 0/1.25 pts 0.678 g of KHP is used to standardize a NaOH solution. If it took 31.55 mL of NaOH to neutralize the KHP, what is the concentration of the NaOH solution? The molar mass of KHP is 204.22 g/mol. KHP + NaOH --> NaKP + H2O Give the answer to 3 sig figs and use units of M 0.0214 Unanswered Question 3 0/1.25 pts A 25.00 mL HCl sample...
Most questions answered within 3 hours.
-
What major physiological changes account for electrodermal
activity (as in during a lie-detector test)?
asked 28 minutes ago -
You are going to sell fruits & vegetables at a local
roadside market. List separately and...
asked 1 hour ago -
Hows does water affect the digestion of fats ?
asked 3 hours ago -
A buffer that contains 0.41 M of a base, B and 0.21 M of its
conjugate...
asked 3 hours ago -
Pleaaaaaaaasssssse help me please please it's more important
:((((((((((((((((((((
CASE STUDY
Nissan Company
Nissan Motor Company,...
asked 3 hours ago -
Calculate the concentration of hydronium and hyroxide ions in 1)
2.0 mol/L HNO3 2) 0.5 mol/L...
asked 3 hours ago -
In a loop-the-loop ride a car goes around a vertical, circular
loop at a constant speed....
asked 3 hours ago -
50 grams each of water (18.015 g/mol) and ethylene glycol
(C2H6O2) (62.07 g/mol) are mixed. At...
asked 4 hours ago -
The life expectancy of sport utility vehicles follows a normal
distribution with a mean of 145.8...
asked 4 hours ago -
If an object with mass of 5 kg is pushed with a force of 552 N,...
asked 4 hours ago -
Suppose your program already has a list called nums, which
contains several numbers. Write a for...
asked 4 hours ago -
A spherical shell with a finite thickness just barely floats in
water. If the shell is...
asked 4 hours ago