Bundle: Introductory Chemistry: A Foundation, Loose-leaf Version, 9th + OWLv2 with MindTap Reader, 1 term (6 months) Printed Access Card
9th Edition
ISBN: 9780357000922
Author: Steven S. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 2, Problem 3QAP
When a large or small number is written in standard scientific notation, the number is expressed as the product of anumberbetween 1 and 10, multiplied by the appropriatepowerof 10. For each of the following numbers, indicate what number between 1 and 10 would be appropriate when expressing the numbers in standard scientific notation.
- 9651
- 0.003521
- 93,241
- 0.000001002
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Perform the operation and express your answer in scientific notation with the correct number of signif-
icant figures. If there are units, make sure that the units of the answer are correct.
1. 0.000123 + 0.239
dods
2. 9.457/0.23
3. 0.123 + 5.321/34.213
When 33.911 is added to 82.649, the result should be reported with
digit(s) after the decimal point.
When 10.2 is subtracted from 58.988, the result should be reported with
digit(s) after the decimal point.
When 33.911 is multiplied by 82.649, the answer should be reported to
significant digit(s).
When 58.988 is divided by 10.2, the answer should be reported to
significant digit(s).
Perform the calculation shown. What is the answer rounded to the correct number
of significant figures? Include the correct unit.
Be Careful!! BE SURE you only include the correct number of significant figures
based on this operation as that is what this question is really checking.
(3.336x10^8) g divided by (1.1x10^-1) mL
Note: Your answer is assumed to be reduced to the highest power possible.
Your Answer:
Answer
x10
units
Chapter 2 Solutions
Bundle: Introductory Chemistry: A Foundation, Loose-leaf Version, 9th + OWLv2 with MindTap Reader, 1 term (6 months) Printed Access Card
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