Ten grams of an unknown acid was added to 50.0 mL of distilled water. The molarity...
Ten grams of an unknown acid was added to 50.0 mL of distilled water. The molarity of the resulting solution was found to be 8.0 M. What is the moral mass of the unknown acid?
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Ten grams of an unknown acid was added to 50.0 mL of distilled
water. The molarity...
The student dissolved 2.050 grams of acid in 50 mL of distilled water. He then titrated...
The student dissolved 2.050 grams of acid in 50 mL of distilled water. He then titrated the unknown acid with a standardized NaOH solution. Unfortunately, the student over shot the end point and had to back titrate the solution with 2.17 mL of 0.98861 M HCl. Once the final end point was determined, the student had added a total of 29.15 mL of a 1.0324 M NaOH solution. A) How many moles of OH- were used to reach the end...
The student dissolved 2.050 grams of acid in 50 mL of distilled water. He then titrated...
The student dissolved 2.050 grams of acid in 50 mL of distilled water. He then titrated the unknown acid with a standardized NaOH solution. Unfortunately, the student over shot the end point and had to back titrate the solution with 2.17 mL of 0.98861 M HCl. Once the final end point was determined, the student had added a total of 29.15 mL of a 1.0324 M NaOH solution. A) How many moles of OH- were used to reach the end...
A sample of KHP weighing 0.503 grams was placed in an Erlenmeyer flask and 100 m distilled water was added to disso...
A sample of KHP weighing 0.503 grams was placed in an Erlenmeyer flask and 100 m distilled water was added to dissolve the acid. Two drops phenolphthalein were added and a light pink endpoint was observed after the addition of 27.3 ml NaOH. What is the Molarity of the NaOH solution? Select one: O a. 0.09 M O b. 0.06 M O C. 0.07 M O d. 0.02 M
A 0.898 grain sample of an unknown monoprotic acid is dissolved in 50.0 mL of water...
A 0.898 grain sample of an unknown monoprotic acid is dissolved in 50.0 mL of water and titrated with a 0.372 M aqueous sodium hydroxide solution. It is observed that after 15.0 milliliters of sodium hydroxide have been added, the pH is 5.053 and that an additional 6.90 mL of the sodium hydroxide solution is required to reach the equivalence point. What is the molecular weight of the acid? g/mol What is the value of K_a for the acid?
6. A student titrated 50.0 mL of the 0.10 M unknown diprotic H2A with 0. 10 M NAOH. After 25.0 mL of NaOH was added...
6. A student titrated 50.0 mL of the 0.10 M unknown diprotic H2A with 0. 10 M NAOH. After 25.0 mL of NaOH was added, the pH of the resulting solution was 6.70. After 50.0 mL of NaOH was added, the pH of the solution was 8.00. What are the values of Ka1 and Ka2?
6. A student titrated 50.0 mL of the 0.10 M unknown diprotic H2A with 0. 10 M NAOH. After 25.0 mL of NaOH was added,...
If 2.0 mL of distilled water is added to 3.0 mL of a 0.150 M solution...
If 2.0 mL of distilled water is added to 3.0 mL of a 0.150 M solution of CoCly, what is the concentration of the resulting solution? Show your work. (a) What is a calibration curve? (b) Why do we use a calibration curve to determine the concentration of our unknown 5. A colored sample with a concentration of 0.160 M has an absorbance of 0.80 in a 1.0 cm path length cuvette. (a) What would be the absorbance expected if...
b) Write a statement of Lambert's Law. If 2.0 mL of distilled water is added to...
b) Write a statement of Lambert's Law. If 2.0 mL of distilled water is added to 3.0 mL of a 0.150 M solution of Cocl, what is the concentration of the resulting solution? Show your work.
1) 43.9 mL of 1.19 M perchloric acid is added to 48.5 mL of sodium hydroxide,...
1) 43.9 mL of 1.19 M perchloric acid is added to 48.5 mL of sodium hydroxide, and the resulting solution is found to be acidic. 24.2 mL of 0.541 M barium hydroxide is required to reach neutrality. What is the molarity of the original sodium hydroxide solution? 2) 56.3 mL of 1.35 M hydroiodic acid is added to 43.6 mL of calcium hydroxide, and the resulting solution is found to be acidic. 15.6 mL of 2.03 M sodium hydroxide is...
0.1081 g of an unknown compound containing CO3^2- was added into 50 mL of distilled water....
0.1081 g of an unknown compound containing CO3^2- was added into 50 mL of distilled water. It took 14.05 mL of 0.1 M HCl to reach equivalence point 2 from titration. What is the percent carbonate CO3^-2 of the unknown compound?
Data i got: 1g of solid acid=0.51706 ml 50 ml of water used to dissolve 0.5...
Data i got:
1g of solid acid=0.51706 ml
50 ml of water used to dissolve
0.5 ml of indicator added to acid solution
8.52 ml of 1M NaOH titrated from burrete into acid
solution.
The virtual lab stockroom contains NaOH, water and an unknown solid weak acid. Perform experiments to identify the pka and molar mass of the bottle of unknown solid acid. You may enter your answer in the form below the Virtual Lab NOTE: You can submit your...
A sample of KHP weighing 0.503 grams was placed in an Erlenmeyer flask and 100 m distilled water was added to dissolve the acid. Two drops phenolphthalein were added and a light pink endpoint was observed after the addition of 27.3 ml NaOH. What is the Molarity of the NaOH solution? Select one: O a. 0.09 M O b. 0.06 M O C. 0.07 M O d. 0.02 M
A 0.898 grain sample of an unknown monoprotic acid is dissolved in 50.0 mL of water and titrated with a 0.372 M aqueous sodium hydroxide solution. It is observed that after 15.0 milliliters of sodium hydroxide have been added, the pH is 5.053 and that an additional 6.90 mL of the sodium hydroxide solution is required to reach the equivalence point. What is the molecular weight of the acid? g/mol What is the value of K_a for the acid?
6. A student titrated 50.0 mL of the 0.10 M unknown diprotic H2A with 0. 10 M NAOH. After 25.0 mL of NaOH was added, the pH of the resulting solution was 6.70. After 50.0 mL of NaOH was added, the pH of the solution was 8.00. What are the values of Ka1 and Ka2?
6. A student titrated 50.0 mL of the 0.10 M unknown diprotic H2A with 0. 10 M NAOH. After 25.0 mL of NaOH was added,...
If 2.0 mL of distilled water is added to 3.0 mL of a 0.150 M solution of CoCly, what is the concentration of the resulting solution? Show your work. (a) What is a calibration curve? (b) Why do we use a calibration curve to determine the concentration of our unknown 5. A colored sample with a concentration of 0.160 M has an absorbance of 0.80 in a 1.0 cm path length cuvette. (a) What would be the absorbance expected if...
b) Write a statement of Lambert's Law. If 2.0 mL of distilled water is added to 3.0 mL of a 0.150 M solution of Cocl, what is the concentration of the resulting solution? Show your work.
Data i got:
1g of solid acid=0.51706 ml
50 ml of water used to dissolve
0.5 ml of indicator added to acid solution
8.52 ml of 1M NaOH titrated from burrete into acid
solution.
The virtual lab stockroom contains NaOH, water and an unknown solid weak acid. Perform experiments to identify the pka and molar mass of the bottle of unknown solid acid. You may enter your answer in the form below the Virtual Lab NOTE: You can submit your...
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