Answered: significant figure

Science

Chemistry

significant figure

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter2: Analyzing Data

Section: Chapter Questions

Problem 90A

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Concept explainers

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.

Question

Do the following calculations to the correct number of significant figures:

a.) 453/2.031

b.) 432/7.3-28.523

c.) 5.01 x 10⁵/ 7.8 x 10²

^{d.) 1459.3 + 9.77/ 4.32}

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Exactly 1 liter of a solution contains 31.4 grams of a certain dissolved substance. What mass in grams is in exactly 2 liters? How about 7.37 liters? Express the results in the proper number of significant figures.
What is the difference between reporting the quantity nine inches as 9 inches and 9.00 inches?
Do the following calculations to the correct number of significant figures: MUST follow the rules of SIGNIFICANT figures a.) 432/7.3-28.523 b.) 0.004 + 0.09879 c.)87.6 + 9.888 +2.3 + 100.77 d.) 5.01 x 105/7.8 x 102
Do the following calculations to the correct number of significant figures: a.) 89.3 x 77.0 x 0.08 b.) 4.005 x 74 x 0.007 c.) 9.5 x 103/34.56 d.) 87.6 + 9.888+ 2.3 + 100.77
.Perform the following calculations and express each answer to the correct number of significant figures. a) 0.0467 × 64 = b) 1780 + 3500 + 21.77 =
Do the following calculations to the correct number of significant figures: a.) 3.8 x 105-8.45 x 104 b.) 0.004 + 0.09879 c.) 1459.3 + 9.77/ 4.32 d.) 432/7.3-28.523
2. Do the following calculations and use the correct number of significant figures in your answers. Assume all numbers are the results of measurements. a. 0.208 + 4.9 + 1.11 b. 228 + 0.999 + 1.02 c. 8.543 − 7.954 d.(3.2 × 10−2) + (5.5 × 10−1) (hint: Write in the decimal form first, then add.) e. 336.86 − 309.11 f. 21.66 − 0.02387
2. Report the answers of these calculations to the correct number of significant figures: (a) 5.354 x 4.812 x 6.8312 = ? (b) 29.4464 + 10.395 +5.20853= ? (c) (5.7268 x 10¹) (6.9 x 10¹0)/1.0= ? (Report answer in exponential notation.)
Do the indicated arithmetic and give the answer to the correct number of significant figures. I. II. 0.71 + 92.2 III. 934 × 0.00435 + 107 IV. (847.89 - 847.73) + 14673
Perform the following calculations, and report your answer to the correct number of significant figures. 1) 2.45 + 18.920 2) 4.009 + 0.0024 - 2.12 3) 1.0042/ 0.00621 4) (9.187*0.182)/3.1
3.) Perform the following calculations. Express your answers in scientific notation (1 pt each) using the correct number of significant figures. a) (0.000414000) + (7.80 x 10-11) 40 14×1054 7.8 X 10-11 = 0.53 077X10 [5.3077x10 c) (9.612 x 5.00)- 35.20 -4+11 9612x5-35.2 48.06-35.20 $12.95 - (1.286 X10' b) 118 +3020.760 3020.760 + 118.000 13138.760 |scientific No *13138.761 C 7 -0.03906 11 3.906x10
part A: Sort the following numbers according to whether they should be rounded up or down when rounding to the nearest tenth (the first digit after the decimal). 3.1760, 4.319, 19.47, 5.82, 66.9214, 8878.2010, 7.084, 124.76 part B: Drag the answers that have been correctly rounded to the appropriate number of significant figures to their place in the table. To avoid rounding errors, start with the unrounded value before conducting each manipulation. Drag the appropriate labels to their respective targets. View Available Hint(s)for Part B Reset Help 14.93 Group 3 14.93 12 Group 1 12 14.92 Group 3 14.92 3.62 Group 4 3.62 14 Group 3 14 3.7 Group 4 3.7 15 Group 3 15 3.6 Group 4 3.6 15.0 Group 3 15.0 3.63 Group 4 3.63 14.9 Group 3 14.9 3.623 Group 4 3.623 12.47 Group 1 12.47 7.97 Group 2 7.97 12.46 Group 1 12.46 7.966 Group 2 7.966 12.4 Group 1 12.4 7.0 Group 2 7.0 13 Group 1 13 7.96 Group 2 7.96 12.5 Group 1 12.5 8.0 Group 2 8.0 3.622 Group 1…