1. Round the following numbers to the number of significant figures indicated: a) 345 (2 s.f.) _350 d) 8.005 (3 s.f) 8.01 b) 7850 (1 s.f.) 8000 e) 0.005758 (3 s.f) _0.00576_ c) 24.68 (3 s.f) f) 1.25x1012 (2 s.f) 24.7 2. Express the answer to each of the following calculations with the correct number of significant figures. а) 3.42 + 8.132 f) 3.882 2.1 b) 4.9 +3.822 g) 4.894 - 2.03 c) 17.8 + 12.115 h) 15.6600 12.838 d) 4.55 + 3.45 i) 11.22 - 8.8 e) 1.966 + 3.4422 j) 133 - 20 3. Express the answer to each of the following calculations with the correct number of significant figures. a) 1.2 x 1.3 f) 32.88 / 4.38 b) 2.16 х 1.8 g) 16.590 / 1.8
1. Round the following numbers to the number of significant figures indicated: a) 345 (2 s.f.) _350 d) 8.005 (3 s.f) 8.01 b) 7850 (1 s.f.) 8000 e) 0.005758 (3 s.f) _0.00576_ c) 24.68 (3 s.f) f) 1.25x1012 (2 s.f) 24.7 2. Express the answer to each of the following calculations with the correct number of significant figures. а) 3.42 + 8.132 f) 3.882 2.1 b) 4.9 +3.822 g) 4.894 - 2.03 c) 17.8 + 12.115 h) 15.6600 12.838 d) 4.55 + 3.45 i) 11.22 - 8.8 e) 1.966 + 3.4422 j) 133 - 20 3. Express the answer to each of the following calculations with the correct number of significant figures. a) 1.2 x 1.3 f) 32.88 / 4.38 b) 2.16 х 1.8 g) 16.590 / 1.8
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:1. Round the following numbers to the number of significant figures indicated:
a) 345 (2 s.f.)
_350
d) 8.005 (3 s.f)
8.01
b) 7850 (1 s.f.)
8000
e) 0.005758 (3 s.f)
_0.00576_
c) 24.68 (3 s.f)
f) 1.25x1012 (2 s.f)
24.7
2. Express the answer to each of the following calculations with the correct number of
significant figures.
а) 3.42
+ 8.132
f) 3.882
2.1
b) 4.9
+3.822
g) 4.894 - 2.03
c) 17.8
+ 12.115
h) 15.6600
12.838
d) 4.55 + 3.45
i) 11.22 - 8.8
e) 1.966
+ 3.4422
j) 133
- 20
3. Express the answer to each of the following calculations with the correct number of
significant figures.
a) 1.2 x 1.3
f) 32.88 / 4.38
b) 2.16 х 1.8
g) 16.590 / 1.8
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