Chemistry Assessment1. Equal numbers of moles of two soluble substances; A & B, are dissolved into 1 L of waterseparately. Explain the following:a) The Water samples are cooled down. Solution A freezes at -0.5°C and B at -1°C. Howthese solutions can have different freezing points?b) Compare the freezing point of 500 mL of solution B with the 1 L of solution A.c) Calculate the molality of the solution A & B assuming i=1 for substance A.d) Describe the change of freezing point if you add 1 Kg of water into solution B.e) What would be the concentrations of A & B if they have the freezing point of -0.05°C?f) Compare the all-other colligative properties of the original solutions of A & B.2. Ammonium hydrogen sulfide, NH,HS, is unstable at room temperature and decomposes:NH,HS(s) + NH3(3) + H2S(3)If you place some solid Ammonium hydrogen sulfide in the closed flask, in which of thefollowing case it will produce less hydrogen sulfide gas-a) Removing some ammoniab) Adding some ammoniac) Removing some Ammonium hydrogen sulfided) Increasing the pressure in the flaskExplain your answer in each case.

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Chemistry Assessment 1. Equal numbers of moles of two soluble substances; A & B, are dissolved into 1 L of water separately. Explain the following: a) The Water samples are cooled down. Solution A freezes at -0.5°C and B at -1°C. How these solutions can have different freezing points? b) Compare the freezing point of 500 mL of solution B with the 1 L of solution A. c) Calculate the molality of the solution A & B assuming i=1 for substance A.

Chemistry Assessment 1. Equal numbers of moles of two soluble substances; A & B, are dissolved into 1 L of water separately. Explain the following: a) The Water samples are cooled down. Solution A freezes at -0.5°C and B at -1°C. How these solutions can have different freezing points? b) Compare the freezing point of 500 mL of solution B with the 1 L of solution A. c) Calculate the molality of the solution A & B assuming i=1 for substance A.

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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