None How many significant figures do the following numbers contain?1.001 43.45 33.450 40.01 1.010 21.230e-04 40.11e-04 21.233.131.233.1 11.233/.01 1show work. don'tgive Ai generatedsolution. don't copyanswer anywhere

First, we state the simple rules for number of significant figures to solve the first few parts…

Answered: How many significant figures do the…

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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Determine the number of significant figures. 1. 100432.6783 / 2 2. 0.000004523 x 2.34 + 10.00000 3. 0.000004523 x 2.34 + 10
Express each result to the proper number of significant figures 0.00071+0.002+0.00008 0.9827-0.06 14.9164-10.08+3282 8.13 x 102+8.13 x 103 1.784 x 104-3.6738 x 103 5.4989 x 10-3-1.5300 x 10-2
I. How many significant figures does each number contain? 1 ] 0.00 2] 160 3] 0.00160 4 ] 1,600,000 5] 1.06 II. Round off each number to three significant figures. 1] 25,401 2] 1,248,486 3] 123456 4] 371 5] 0.012695982 III. Write each quantity in scientific notation. 1] 1,234 g 2] 44,000 km 3] 0.000162 m 4] 5,244,000 L 6] 4,440 s III. Convert each number to its standard form. 1] 4 x 10⁸ 2] 3 x 10² 3] 822 x 10⁻⁵ 4] 0.2 x 10¹0 5] 200 x 10⁻⁷
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.…
No need to explain. Just give the answers directly. Thank you. 1. Round off 1.274 to one (1) significant figure 2. Round off 1653 to one (1) significant figure 3. Round off 534.5 to three (3) significant figures
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13. The mass of water delivered by a buret is 11.8159 g at 15 °C. What is the calculated actual volume based on significant figures? NOTE: You will report the actual volume deliver in Expt 1 to two decimal places since all class A 50 mL buret readings are to two decimal places. 11.827 11.792 11.805 11.840
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Find the difference between the value of x2 and the sum of x1 plus x3.; let x4 be equivalent to the sum of x1 and x3 and let x5 be the difference between x2 and x5. This calculation scheme is shown below. Make notes about any similarities or differences between the values in your notes. x4 = x1 + x3 x5 = x2 – x4 Data Analyis This section will include all data collected during the lab. Thermochemical Data Tinitial (°C) Tfinal (°C) ΔT (°C) moles NaOH qreaction (kJ) ΔHrxn Reaction 1 25.0 30.3 +5.3 0.025 -1.11 -44.4 Reaction 2 25.0 37.0 +12.0 0.025 -2.51 -100.4 Reaction 3 25.0 31.7 +6.7 0.025 -1.40 -56.1 Reaction 1: NaOH(s) → Na+(aq) + OH-(aq) + x1 kJ 1g /39.977g/mol = 0.025 moles Moles NaOH = 0.025 qsolution = (4.184 J/g °C) (50.0g) (30.3°C -25.0°C) = -1108.76 J/ 1000 qreaction (kJ) = -1.11 kJ ΔH = -1.11 kJ/ 0.025 moles ΔHrxn = -44.4 kJ/mol…
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
Assuming all of the numbers are measured quantities, perform the following arithmetic setups and give the answer to correct number of significant figures. 9.750 – 9.015 a. 1.811 9.345 + 3.005 b. 8.811 с. (7.50 + 8.53) х 7.71 d. 0.81 × 0.86 + 12.36
5 nyoor X A the p X Spoti x A Chap x E * Par X Netfli X Goo 53. Calculate Make the following conversions. Express your answers in scientific notation. a. 14.8 g = ? ug b. 3.72 g = ? kg C. 66.3 L ? cm³ d. 7.5 x 104 J = ? kJ e. 3.9 × 10° mg = ? dg f. 2.1 X 10 dL = ? µL %3D %3D

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How many significant figures do the following numbers contain? 1.001 4 3.45 3 3.450 4 0.01 1 .010 2 1.230e-04 4 0.11e-04 2 1.233.13 1.233.1 1 1.233/.01 1 show work. don't give Ai generated solution. don't copy answer anywhere