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Solved: Round each number to three significant figures.(a) 10,776.522(b) 4.999902 ×

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

Solution for problem 51P 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 51P

Problem 51P

Round each number to three significant figures.

(a) 10,776.522

(b) 4.999902 × 106

(c) 1.3499999995

(d) 0.0000344988

Step-by-Step Solution:

Problem 51P

Round each number to three significant figures.

(a) 10,776.522

(b) 4.999902 × 106

(c) 1.3499999995

(d) 0.0000344988

                                                               Step by step solution

Step 1 of 4

a)

The following rules can be followed to round up the final answer to the significant figures.

          * Round down if the last digit dropped is 4 or less

          * Round up if the last digit dropped is 5 or more.

The given value - 10,776.522.

We have to move the decimal point to the left 4 decimal places to obtain a number between 1 and 10.

Hence, we have moved the decimal point to 4 places, the exponent used here is 4.

The last digit is less than five. We have to round it up.

Therefore rounded to three significant figures.

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Step 2 of 4

Chapter 2, Problem 51P is Solved
Step 3 of 4

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

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Solved: Round each number to three significant figures.(a) 10,776.522(b) 4.999902 ×