Instruction. Answer the following thoroughly and write your answers in a separate sheetof paper. SHOW YOUR SOLUTION. Write the (a)Given, (b)Required, and (c)Solution. Boxyour final answer/s and indicate the proper units.1. A solution is prepared by dissolving 25.47 g of K2Cr2O, in 100.00 g of water. The volume of theresulting solution 104.00 mL. Calculate the following:a. Mole fraction of K2Cr20,b. molarity of solutionc. molality if solutiond. mass percent of K2Cr2O,e. density of the solution2.Baking soda (NaHCO,) is often used as an antacid. It neutralizes excess hydrochloricacid secreted by the stomach:NaHCO, (9) + HCI (ag) → Nacl (a) + H20 (m + CO2 (o)Milk of magnesia, which is an aqueous suspension of magnesium hydroxide, is also used as anantacid:Mg(OH)2 19) + 2HCI to9) → 2H20 n + MgCl2 (9)Which is the more effective antacid per gram, NaHCO, or Mg(OH)2?3.A student carries out an experiment to standardize (determine the exactconcentration of) a sodium hydroxide solution. To do this, the student weighs out a 1.3009-gsample of potassium hydrogen phthalate (KHC,H,O4, often abbreviated as KHP). The studentdissolves the KHP in distilled water, adds phenolphthalein as an indicator, and titrates theresulting solution with the sodium hydroxide solution to the phenolphthalein endpoint. Thedifference between the final and initial burette readings indicates 41.20 mL of the sodiumhydroxide solution is required to react exactly with the 1. 3009 g KHP. Calculate theconcentration of the sodium hydroxide solution.

Answered: Image /qna-images/answer/5f56887a-f960-4a3e-af80-ae9da15844af.jpg

1. A solution is prepared by dissolving 25.47 g of K:Cr20; in 100.00 g of water. The volume of the resulting solution 104.00 mL. Calculate the following: a. Mole fraction of K¿Cr2O7 b. molarity of solution c. molality if solution d. mass percent of K¿Cr2O7 e. density of the solution

1. A solution is prepared by dissolving 25.47 g of K:Cr20; in 100.00 g of water. The volume of the resulting solution 104.00 mL. Calculate the following: a. Mole fraction of K¿Cr2O7 b. molarity of solution c. molality if solution d. mass percent of K¿Cr2O7 e. density of the solution

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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