A stock solution of concentration 0.197 M is diluted in a two-step serial dilution. In the first step,56.00 mL of the stock solution is diluted to a final volume of 113.77 mL, and in the second step50.00 mL of the resulting solution is diluted to a final volume of 55.00 mL. What is theconcentration of the solution after the second dilution? Give your answer with 3 significant figures.

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Answered: A stock solution of concentration 0.197…

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter1: Basic Concepts Of Chemistry

Section: Chapter Questions

Problem 39RGQ

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1.87 A solution of ethanol in water has a volume of 54.2 mL and a mass of 49.6 g. what information would you need to look up and how would you determine the percentage of ethanol in this solution?
What is the difference between (a) mass and density? (b) an extensive and an intensive property? (c) a solvent and a solution?
Beakers (a), (b), and (c) are representations of tiny sections (not to scale) of mixtures made from pure benzene and pure water. Select which beaker gives proper representation of the result when the two pure substances are mixed.
A 124-g sample of a pure liquid, liquid A, with a density of 3.00 g/mL is mixed with a 40.8-mL sample of a pure liquid, liquid B, with a density of 2.00 g/mL. What is the total volume of the mixture? (Assume there is no reaction upon the mixing of A and B, and volumes are additive.)
Exactly 1 liter of a solution contains 31.4 grams of a certain dissolved substance. What mass in grams is in exactly 2 liters? How about 7.37 liters? Express the results in the proper number of significant figures.
What mass of solid NaOH (97.0% NaOH by mass) is required to prepare 1.00 L of a 10.0% solution of NaOH by mass? The density of the 10.0% solution is 1.109 g/mL.
A 25.0 mL aqueous stock solution of 3.7 M NaF is diluted to a final concentration of 1.8 M. What is the diluted volume (in mL) of the NaF solution? Express your answer to the correct number of significant figures and include the unit with your answer.
Solution 1 is diluted by combining 6 mL of Solution 1 with 64 mL of Solution 2. What is the dilution of solution 1? Report your answer in standard decimal notation rounded to two decimal places. For example, 4 mL added to 16 mL would be a 0.20 dilution. Include trailing zeros if necessary so your answer has two decimal places.
16.0 mL water
1. You have a stock solution of 14.2 M NH3. How many milliliters of this solution should you dilute to make 1000 mL of 0.210 M NH3? Express your answer using three significant figures. 2. If you take a 15.0-mL portion of the stock solution and dilute it to a total volume of 0.700 L, what will be the concentration of the final solution? Express your answer using three significant figures.
A) Calculate the molarity 12.21 mg KI in 107.6 mL of solution Express your answer using four significant figures. B) A chemist wants to make 6.0 L of a 0.310 MCaCl2 solution. What mass of CaCl2 (in g) should the chemist use? Express your answer in grams using two significant figures.
Objective KTIO A chemistry student weighs out 0.0434 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1800M NAOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Round your answer to 3 significant digits. mt. I Don't Know Submit 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility Launcher Lenovo

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