2.-Round up the following numbers to the designated significant figuresto 2 significant figure32445.34to 1 significant figure85518to 4 significant figures526544

Given number is 32445.34 and has to round up to two significant figures.Since the third digit in…

Answered: 2.-Round up the following numbers to…

World of Chemistry, 3rd edition

3rd Edition

ISBN:9781133109655

Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCoste

Chapter5: Measurements And Calculations

Section5.2: Uncertainty In Measurement And Significant Figures

Problem 2RQ

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3. The number of significant figures in 0.090900 * 10^-4 is
between significant digits are always significant. figures. Example: 5,007 has 4 significant figures. 3) Trailing zeros in a number are significant only If the number contalns a decimal polnt. Example: 100.0 has 4 significant figures. 100 has 1 significant figure. 4) Zeros in the beginning of a number whose only function Is to place the decimal polnt are not significant. Example: 0.0025 has 2 significant figures. 5) Zeros following a decimal significant figure are significant. Example: 0.000470 has 3 significant figures. 0.47000 has 5 signlficant figures. Determine the number of significant figures in the following numbers. 1. 0.02 6. 5,000. 4. 2. 0.020 2. 7. 6,051.006 3. 501 3 8. 0.0005 1. 4. 501.0 9. 0.1020 5. 5,000 10. 10,001 5 Determine the location of the last significant place value by placing a bar over the digit. Example: 1.700) 9,010.0 4.7x10-8 10,8 00,000 3.0Tx 1021 0.00410 1. 8040 6. 90,100 0.0300 699.5 2,000X162 0.90100 2. 0.0300 7. 4.7 x 108 3. 699.5 8. 10,800,000. 3.…
Write 3.280x104 J as a normal, decimal number without any scientifc notation. Pay attetion to significant figures. 0.003280 J O 0.03280 J O 0.000328O J O 328000 J 32800 J
55. Round the number on the left to the number of significant figures indicated by the example in the first row. (Use scientific notation as needed to avoid ambiguity.) Rounded to Rounded to Rounded to 4 Significant 2 Significant 1 Significant Figures Number Figures Figure 1.45815 1.458 1.5 8.32466 84.57225 132.5512
3. Perform the following calculations reporting your answer to the correct number of significant figures and with the correct units. a) 25.4 mL 21.4 mL = 1 1 kg b) 123.4 g * 1000 g c) 120.5 g + 32.567 g = conversion factors & calculations | EXP 2
Calculate to the correct number of significant figures. (24.6681 x 2.38) + 332.58
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
The number 31.00065 rounded to 4 significant figures is
Question 1 Give the correct number of significant figures for 2500, 2500. ,0.0043, 0.06050 Question 2 Give the answer to the correct number of significant figures: 7964 + 86.94 + 760 =? Question 3 Give the answer to the correct number of significant figures: 4.596 - 2.81 =? Question 4 Give the answer to the correct number of significant figures: (4.58 x 10) x (4.3198 x 10-19) =? Question 5 Give the answer in scientific notation and to the correct number of significant figures: (7860) / (0.00001)=?
How many significant figures in each number? ~3.14159 ~0.0202 ~320.0 ~3.0x10^-3 ~500
How many significant figures are shown in each ofthe following? If this is indeterminate, explain why.(a) 450; (b) 98.6; (c) 0.0033; (d) 902.10; (e) 0.02173;(f) 7000; (g) 7.02; (h) 67,000,000
None

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2.-Round up the following numbers to the designated significant figures to 2 significant figure 32445.34 to 1 significant figure 85518 to 4 significant figures 526544