Evaluate: 27.30 g + 12.755 g + 0.055 g =Report answer to the correct number of decimal places and include units.

When addition operation is performed, the final answer have least number of digits after the decimal…

Answered: Evaluate: 27.30 g + 12.755 g + 0.055 g…

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 42E: Perform the following mathematical operations, and express the result to the correct number of...

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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…
perform the following calculation, reporting your answer to the correct number of significant figures and with the correct unit. 120.5 g + 32.567 g =
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References Use the References to access important values if needed for this question. When 58.43 is added to 90.66, the result should be reported with the decimal point. When 32.96 is subtracted from 37.4, the result should be reported with after the decimal point. When 58.43 is multiplied by 90.66, the answer should be reported to digit(s). When 37.4 is divided by 32.96, the answer should be reported to digit(s). Submit Answer digit(s) after digit(s) significant significant

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Evaluate: 27.30 g + 12.755 g + 0.055 g = Report answer to the correct number of decimal places and include units.