answer 38 37. What is the molarity of a solution that contains 20g of CaBr2 in 0.50 Lof solution? *a. 0.50 MO b. 0.20 MO c. 5.0 MO d.10 M38. What is the total number of grams of KCI (molar mass = 74.6g/mol) in%3D1.00 L of 0.200 molar solution? *a. 7.46O b. 14.9O c. 22.4O d 29.8

Question 38) To find mass of KCl, we need to use the formula of molarity which is given as follows:-…

Answered: 38. What is the total number of grams…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

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Chapter13: Titrations In Analytical Chemistry

Section: Chapter Questions

Problem 13.7QAP

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What mass of HCl is contained in 45.0 mL of an aqueous HCl solution that has a density of 1.19 g cm-3 and contains 37.21% HCl by mass?
The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In general, 1 ppm means 1 part of solute for every 106 parts of solution. Mathematically, by mass: ppm=gsolutegsolution=mgsolutekgsolution In the case of very dilute aqueous solutions, a concentration of 1.0 ppm is equal to 1.0 g of solute per 1.0 mL, which equals 1.0 g solution. Parts per billion is defined in a similar fashion. Calculate the molarity of each of the following aqueous solutions. a. 5.0 ppb Hg in H2O b. 1.0 ppb CHCl3 in H2O c. 10.0 ppm As in H2O d. 0.10 ppm DDT (C14H9Cl5) in H2O
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?
Determine the molarity of each of the following solutions: (a) 1.457 mol KCl in 1.500 L of solution (b) 0.515 g of H2SO4 in 1.00 L of solution (c) 20.54 g of Al( NO3)3 in 1575 mL of solution (d) 2.76 kg of CuSO45H2O in 1.45 L of solution (e) 0.005653 mol of Br2 in 10.00 mL of solution (f) 0.000889 g of glycine, C2H5NO2, in 1.05 mL of solution
When a solution is diluted by adding additional solvent, the concentration of solute changes hut the amount of solute present does not change. Explain. Suppose 250. mL of water is added to 125 mL of 0.55 1 M NaCl solution. Explain how you would calculate the concentration of the solution after dilution.
A solution is prepared by diluting 0.7850 L of 1.262 M potassium sulfide solution with water to a final volume of 2.000 L. (a) How many grams of potassium sulfide were dissolved to give the original solution? (b) What are the molarities of the potassium sulfide, potassium ions, and sulfide ions in the diluted solution?
Calculate the number of moles and the mass of the solute in each of the following solutions: (a) 2.00 L of 18.5MH2SO4, concentrated sulfuric acid (b) 100.0 mL of 3.8105MNaCN, the minimum lethal concentration of sodium cyanide in blood serum (c) 5.50 L of 13.3 MH2CO, the formaldehyde used to fix tissue samples (d) 325 mL of 1.8106MFeSO4, the minimum concentration of iron sulfate detectable by taste in drinking water
Insulin is a hormone that controls the use of glucose in the body. How many moles of insulin are required to make up 28 mL of 0.0048 M insulin solution?
What is the molarity of the diluted solution when each of the following solutions is diluted to the given final volume? (a) 1.00 L of a 0.250-M solution of Fe( NO3)3 is diluted to a final volume of 2.00 L (b) 0.5000 L of a 0.1222-M solution of C3H7OH is diluted to a final volume of 1.250 L (c) 2.35 L of a 0.350-M solution of H3PO is diluted to a final volume of 4.00 L (d) 22.50 mL of a 0.025-M solution of C12H22O11 is diluted to 100.0 mL

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38. What is the total number of grams of KCI (molar mass = 74.6g/mol) in 1.00 L of 0.200 molar solution? %3D a. 7.46 O D. 14.9 O c. 22.4 O d 29.8