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Get Full Access to Introductory Chemistry - 5 Edition - Chapter 2 - Problem 4q
Get Full Access to Introductory Chemistry - 5 Edition - Chapter 2 - Problem 4q

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# If a measured quantity is written correctly, which digits are certain? Which are

ISBN: 9780321910295 34

## Solution for problem 4Q Chapter 2

Introductory Chemistry | 5th Edition

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Problem 4Q

If a measured quantity is written correctly, which digits are certain? Which are uncertain?

Step-by-Step Solution:
Step 1 of 3

Solution 4Q

A measured quantity is called significant figures (correct) when it consists of certain and uncertain digits.

Rules for significant figures: A significant figures = certain digit +  first uncertain digit

Therefore, the last digit of significant figures are always uncertain.

For example:

Let us consider a measured quantity 30.28

Here, (3), (0) and (2) are certain digit and (8) is uncertain digit.

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321910295

This full solution covers the following key subjects: correctly, digits, measured, quantity, uncertain. This expansive textbook survival guide covers 19 chapters, and 2046 solutions. The answer to “?If a measured quantity is written correctly, which digits are certain? Which are uncertain?” is broken down into a number of easy to follow steps, and 14 words. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. The full step-by-step solution to problem: 4Q from chapter: 2 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. Since the solution to 4Q from 2 chapter was answered, more than 1139 students have viewed the full step-by-step answer. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295.

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