Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
13th Edition
ISBN: 9780134421353
Author: Karen C. Timberlake
Publisher: PEARSON
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Textbook Question
Chapter 2.5, Problem 2.43PP
Why can two conversion factors be written for an equality such as 1m = 100 cm?
2.44 How can you check that you have written the correct conversion factors for an equality?
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Why can two conversion factors be written for an equality such as 1 m = 100 cm?
A bike has a 56 cm frame. What is this frame size equal to inches? (1.00 in = 2.54 cm. Not that this equivalence does not limit significant figures in the final answer)
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…
Chapter 2 Solutions
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
Ch. 2.1 - Write the abbreviation for each of the following:...Ch. 2.1 - Write the abbreviation for each of the following:...Ch. 2.1 - State the type of measurement in each of the...Ch. 2.1 - Prob. 2.4PPCh. 2.1 - Prob. 2.5PPCh. 2.1 - Prob. 2.6PPCh. 2.1 - Prob. 2.7PPCh. 2.1 - On a typical day, medical personnel may encounter...Ch. 2.2 - 2.9 How many significant figures are in each of...Ch. 2.2 - How many significant figures are in each of the...
Ch. 2.2 - 2.11 In which of the following pairs do both...Ch. 2.2 - 2.12 In which of the following pairs do both...Ch. 2.2 - 2.13 Indicate if the zeros are significant in each...Ch. 2.2 - 2.14 Indicate if the zeros are significant in each...Ch. 2.2 - 2.15 Write each of the following in scientific...Ch. 2.2 - 2.16 Write each of the following in scientific...Ch. 2.2 - Identify the numbers in each of the following...Ch. 2.2 - Prob. 2.18PPCh. 2.2 - Prob. 2.19PPCh. 2.2 - Prob. 2.20PPCh. 2.2 - Identify each of the following as measured or...Ch. 2.2 - Prob. 2.22PPCh. 2.3 - Round off each of the following calculator answers...Ch. 2.3 - Prob. 2.24PPCh. 2.3 - Prob. 2.25PPCh. 2.3 - Prob. 2.26PPCh. 2.3 - Prob. 2.27PPCh. 2.3 - Prob. 2.28PPCh. 2.3 - Prob. 2.29PPCh. 2.3 - Prob. 2.30PPCh. 2.4 - 2.31 Write the abbreviation for each of the...Ch. 2.4 - Write the abbreviation for each of the following...Ch. 2.4 - Prob. 2.33PPCh. 2.4 - Prob. 2.34PPCh. 2.4 - Write the numerical value for each of the...Ch. 2.4 - Prob. 2.36PPCh. 2.4 - Prob. 2.37PPCh. 2.4 - Use a prefix to write the name for each of the...Ch. 2.4 - Complete each of the following metric...Ch. 2.4 - Prob. 2.40PPCh. 2.4 - Prob. 2.41PPCh. 2.4 - Prob. 2.42PPCh. 2.5 - Why can two conversion factors be written for an...Ch. 2.5 - Prob. 2.44PPCh. 2.5 - Prob. 2.45PPCh. 2.5 - Prob. 2.46PPCh. 2.5 -
2.47 Write the equality and two conversion...Ch. 2.5 - Write the equality and two conversion factors, and...Ch. 2.5 - Write the equality and two conversion factors, and...Ch. 2.5 - Prob. 2.50PPCh. 2.5 - Write the equality and two conversion factors, and...Ch. 2.5 - Write the equality and two conversion factors, and...Ch. 2.5 - Prob. 2.53PPCh. 2.5 -
2.54 Write an equality and two conversion...Ch. 2.6 - Perform each of the following conversions using...Ch. 2.6 - Perform each of the following conversions using...Ch. 2.6 -
2.57 Perform each of the following conversions...Ch. 2.6 - Perform each of the following conversions using...Ch. 2.6 - Use metric conversion factors to solve each of the...Ch. 2.6 - Use metric conversion factors to solve each of the...Ch. 2.6 - Prob. 2.61PPCh. 2.6 - Solve each of the following problems using one or...Ch. 2.6 - Using conversion factors, solve each of the...Ch. 2.6 - Prob. 2.64PPCh. 2.6 - Prob. 2.65PPCh. 2.6 - Using conversion factors, solve each of the...Ch. 2.7 -
2.67 Determine the density (g/mL) for each of the...Ch. 2.7 - Determine the density (g/mL) for each of the...Ch. 2.7 - Prob. 2.69PPCh. 2.7 - What is the density (g/mL) of each of the...Ch. 2.7 - Prob. 2.71PPCh. 2.7 - Prob. 2.72PPCh. 2.7 - Prob. 2.73PPCh. 2.7 - Prob. 2.74PPCh. 2.7 - Prob. 2.75PPCh. 2.7 - Prob. 2.76PPCh. 2.7 - Prob. 2.77PPCh. 2.7 - Solve each of the following problems: a. A glucose...Ch. 2.7 - Prob. 2.79PPCh. 2.7 - Prob. 2.80PPCh. 2 - In which of the fo1losing pairs do both numbers...Ch. 2 - In which of the following pairs do both numbers...Ch. 2 - Indicate if each of the following is answered with...Ch. 2 - Prob. 2.84UTCCh. 2 - State the temperature on the Celsius thermometer...Ch. 2 - Prob. 2.86UTCCh. 2 - Prob. 2.87UTCCh. 2 - A shipping box has a length of 7.00 in., a width...Ch. 2 - Prob. 2.89UTCCh. 2 - Prob. 2.90UTCCh. 2 - Prob. 2.91UTCCh. 2 - Prob. 2.92UTCCh. 2 - Prob. 2.93UTCCh. 2 - Prob. 2.94UTCCh. 2 - Prob. 2.95APPCh. 2 - Prob. 2.96APPCh. 2 - Prob. 2.97APPCh. 2 - Prob. 2.98APPCh. 2 - Prob. 2.99APPCh. 2 - Prob. 2.100APPCh. 2 - Prob. 2.101APPCh. 2 - Prob. 2.102APPCh. 2 - Prob. 2.103APPCh. 2 - Prob. 2.104APPCh. 2 - Prob. 2.105APPCh. 2 - Prob. 2.106APPCh. 2 - Prob. 2.107APPCh. 2 - Prob. 2.108APPCh. 2 - Prob. 2.109APPCh. 2 - Prob. 2.110APPCh. 2 - Prob. 2.111APPCh. 2 - Prob. 2.112APPCh. 2 - Prob. 2.113APPCh. 2 - Prob. 2.114APPCh. 2 - Prob. 2.115CPCh. 2 - Prob. 2.116CPCh. 2 -
2.117 A car travels at 55 mi/h and gets 11 km/L...Ch. 2 - A sunscreen preparation contains 2.50% benzyl...Ch. 2 - Prob. 2.119CPCh. 2 - Prob. 2.120CPCh. 2 - Prob. 2.121CPCh. 2 - Prob. 2.122CP
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