EBK EXPLORING CHEMICAL ANALYSIS
EBK EXPLORING CHEMICAL ANALYSIS
5th Edition
ISBN: 8220101443908
Author: Harris
Publisher: MAC HIGHER
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Chapter 2, Problem 2.1P
Interpretation Introduction

Interpretation:

The purpose of the internal calibration mass at the upper left in the electronic balance has to be explained.

Expert Solution & Answer
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Explanation of Solution

  • The force of gravity differs from place to place and at different elevations above Earth's surface.
  • For the compensation of unknown local gravitational force, an internal calibration mass at the upper left is required.
  • In the automatic calibration step, the balance measures how much current is required to balance the known mass.

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6. Consider the following exothermic reaction below. 2Cu2+(aq) +41 (aq)2Cul(s) + 12(aq) a. If Cul is added, there will be a shift left/shift right/no shift (circle one). b. If Cu2+ is added, there will be a shift left/shift right/no shift (circle one). c. If a solution of AgNO3 is added, there will be a shift left/shift right/no shift (circle one). d. If the solvent hexane (C6H14) is added, there will be a shift left/shift right/no shift (circle one). Hint: one of the reaction species is more soluble in hexane than in water. e. If the reaction is cooled, there will be a shift left/shift right/no shift (circle one). f. Which of the changes above will change the equilibrium constant, K?
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