Question #3: Fill in the number or 1/[S] in the table below. Round to the nearest hundredth. Remember to enter two digits after the decimal point even if the number is 0 (ex. 2.40). Rate 1/ [S] 0.13 0.200 X 0.28 0.100 0.48 0.05 X 0.64 0.033 X 0.73 0.025 X 0.77 0.020 X X * X

Question #3: Fill in the number or 1/[S] in the table below. Round to the nearest hundredth. Remember to enter two digits after the decimal point even if the number is 0 (ex. 2.40). Rate 1/ [S] 0.13 0.200 X 0.28 0.100 0.48 0.05 X 0.64 0.033 X 0.73 0.025 X 0.77 0.020 X X * X

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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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.…
320.28 - (6107.5/2.8). Express your answer to the appropriate number of significant digits. [(289.8 x 105 ) - (1.100 x 103 )] x 2.8974. Express your answer to the appropriate number of significant digits. (0.0041×20000.0)+(2817×14). Express your answer to the appropriate number of significant digits. 865×[1259−(3.98×106)]. Express your answer to the appropriate number of significant digits.
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…
Need help with this textbook question thats been giving me hard time. Please show steps. calculate x to the correct number of significant figures: Should be in standard notation or scientific notation. ln(3.86 / 1.00) = 362.8 x 10^3 / 8.314 (((298.1)^-1) - x^-1) Here are choices: 300.9 301 3.0 x 102 300.88 300.8
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
A Moving to another question will save this response. Question 21 Make the following calculation and report your answer to the correct number of significant figures rounding the result if necessary. (8.811 +3.1379)/48.61 meaning add 8.811 to 3.1379 and then divide by 48.61 A Moving to another question will save this response. 2 W #3 20 E F3 54 4 DOD DOD F4 R % 5 F5 MacBook Pro T & Y 7 *00
% error = (experimental value - accepted value) x 100 Accepted value Siver 10.06cm^3 -10.49cm^3 *100 / 10.49 Is this correct ?
||| O MEASUREMENT Counting significant digits when measurements are multiplied o... Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 945.8 m 0.85 s = 569.1 mol 0.41 L 7.8084 g mL = X 3.45 mL = 07 S mol L x10 X Ś
1. Perform the following calculations and give the answer rounded to the correct number of significant figures: [(3.35 x 1.06) + (21 1.773)] The answer is
56. 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 4 Rounded to 2 Rounded to 1 Significant Figures Significant Figures Significant Figure Number 9 × 101 94.52118 94.52 95 105.4545 0.455981 0.009999991
When writing a number in scientific notation you must move the decimal point (assumed or actual) to the right (negative exponent) or the the left (positive exponent) in order to have the digit term written correctly (1> digit term<10). 0.000034555 move the decimal point to the right 5 times to have the digit term less than 10 but greater than 1! in proper notation 3.4555 x 10-5 60349500000 move assumed decimal in proper notation 6.03495 x 1010 Write the numbers represented by the the following: Number 6,000.345 5003450000000 0.0000000005768909 2222200000999999 0.00690 this means that the digit term must be divided by 10 five times to arrive at the number represented in sci. not. point 10 times to the left this means that the digit term must be multiplied by 10 ten times to arrive at the number represented in sci. not. (A x 10%) (B x 10²) (5.1 x 105) (1.2 x 10²) = Scientific Notation You will need to multiply and divide numbers in scientific notation this semester. It is easy to do! To…