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Correct any entries in the table that are wrong.QuantitySignificant Figures(a) 24 days

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 48P Chapter 2

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 48P

Problem 48P

Correct any entries in the table that are wrong.

Quantity

Significant Figures

(a) 24 days

              2

(b) 5.6 × 10−12 s

              3

(c) 3.14 m

              3

(d) 0.00383 g

             5

Step-by-Step Solution:
Step 1 of 3

Solution: Here, we are going to identify the wrong entry of the significant figures in the given table.

Step1:

The following rules are followed to count the number of significant figures in a particular number:

  1. All non-zero digits are significant.
  2. Zeroes between two non zero digits are significant.
  3. The zeroes preceding to the first non zero number(i.e., to the left of the first non zero number) are not significant.
  4. All zeroes placed at the end or to the right of a number are significant provided they are on the right side of the decimal point.
  5. In exponential notations, the numerical portion represents the number of significant figures.

Step2:

Based on the rules given above, we can say that two of the entries given in the table are wrong.

b)        5.6 x 10-12 s has two significant figures        [Rule 5]

d)        0.00383 g has three significant figures        [Rule 3]

                                                ------------------

Step 2 of 3

Chapter 2, Problem 48P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

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Correct any entries in the table that are wrong.QuantitySignificant Figures(a) 24 days