Exploring Chemical Analysis
Exploring Chemical Analysis
5th Edition
ISBN: 9781429275033
Author: Daniel C. Harris
Publisher: Macmillan Higher Education
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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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