Do you know how to solve #2???? buret is calibrated to deliver in one filling.2. A sample is reported to contain 44.0% by weight KHP. If you weigh 1.272 g of sample and diluteto 50.0 mL with DI water, what is the molarity of KHP in the final solution?3. Let's say you prepared the solution in question 2, but you didn't use a pipet to transfer DI waterto the Erlenmeyer flask. Instead, you just poured from your DI wash bottle to the 50 mL line onyour flask. Is this a problem? Justify your answer.

A sample is reported to contain 44.0% by weight KHP. If you weigh 1.272 g of sample and dilute to 50.0 mL with DI water, what is the molarity of KHP in the final solution? Let's say you prepared the solution in question 2, but you didn't use a pipet to transfer DI water to the Erlenmeyer flask. Instead, you just poured from your DI wash bottle to the 50 mL line on your flask. Is this a problem? Justify your answer.

A sample is reported to contain 44.0% by weight KHP. If you weigh 1.272 g of sample and dilute to 50.0 mL with DI water, what is the molarity of KHP in the final solution? Let's say you prepared the solution in question 2, but you didn't use a pipet to transfer DI water to the Erlenmeyer flask. Instead, you just poured from your DI wash bottle to the 50 mL line on your flask. Is this a problem? Justify your answer.

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 121AP: Calcium carbonate, CaCO3, can be obtained in a very pure state. Standard solutions of calcium ion...

See similar textbooks

Similar questions

Twenty-five milliliters of a solution (d=1.107g/mL)containing 15.25% by mass of sulfuric acid is added to 50.0 mL of 2.45 M barium chloride. (a) What is the expected precipitate? (b) How many grams of precipitate are obtained? (c) What is the chloride concentration after precipitation is complete?
Lead poisoning has been a hazard for centuries. Some scholars believe that the decline of the Roman Empire can be traced, in part, to high levels of lead in water from containers and pipes, and from wine that was stored in leadglazed containers. If we presume that the typical Roman water supply was saturated with lead carbonate, PbCO3 (Ksp = 7.4 1014), how much lead will a Roman ingest in a year if he or she drinks 1 L/day from the container?
Calcium carbonate, CaCO3, can be obtained in a very pure state. Standard solutions of calcium ion are usually prepared by dissolving calcium carbonate in acid. What mass of CaCO3 should be taken to prepare 500. mL of 0.0200 M calcium ion solution?
A 10.00-mL sample of a 24.00% solution of ammonium bromide (NH4Br) requires 23.41 mL of 1.200 molar silver nitrate (AgNO3) to react with all of the bromide ion present. (a) Calculate the molarity of the ammonium bromide solution. (b) Use the molarity of the solution to find the mass of ammonium bromide in 1.000 L of this solution. (c) From the percentage concentration and the answer to part b, find the mass of 1.000 L ammonium bromide solution. (d) Combine the answer to part c with the volume of 1.000 L to express the density of the ammonium bromide solution (in g/mL).
On Easter Sunday, April 3, 1983, nitric acid spilled from a tank car near downtown Denver, Colorado. The spill was neutralized with sodium carbonate: 2HNO3(aq)+Na2CO3(aq)2NaNO3(aq)+H2O(l)+CO2(g) a. Calculate H for this reaction. Approximately 2.0 104 gal nitric acid was spilled. Assume that the acid was an aqueous solution containing 70.0% HNO3 by mass with a density of 1.42 glcm3. What mass of sodium carbonate was required for complete neutralization of the spill, and what quantity of heat was evolved? (Hf for NaNO3(aq) = 467 kJ/mol) b. According to The Denver Post for April 4, 1983, authorities feared that dangerous air pollution might occur during the neutralization. Considering the magnitude of H, what was their major concern?