Chemistry, Books a la Carte Plus Mastering Chemistry with eText -- Access Card Package (7th Edition)
7th Edition
ISBN: 9780133900811
Author: John E. McMurry, Robert C. Fay, Jill Kirsten Robinson
Publisher: PEARSON
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Chapter 1, Problem 1.14A
APPLY 1.14 A sodium chloride solution was prepared in the fol- lowing manner:
• A 25.0 mL volumetric flask (Figure 1.8) was placed on an ana- lytical balance and found to have a mass Of 35.6783 g.
• Sodium chloride was added to flask and the mass of the solid + flask was 36.2365 g.
• The flask was filled to the mark with water and mixed well.
Calculate the concentration Of the sodium chloride solution in units of g/mL and give the answer in scientific notation with the correct number Of significant figures.
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4. A solution is prepared by taking a clean and dry 50.00 mL volumetric flask. Some sucrose (Mm 342.2 g/mol) is added to the flask with the following mass measurements recorded:
mass of empty volumetric flask: 142.88 g
mass of weighing dish + sucrose: 29.83 g
mass of weighing dish after adding sucrose to volumetric flask: 24.62 g
Some water is added to the flask, the solution stirred until all the sucrose is dissolved. Then water is added carefully to the mark on the flask. The filled flask is then weighed again.
mass of filled volumetric flask: 187.30 g
What is the mole fraction of water? Answer to 3 decimal places.
A chemistry student must write down in her lab notebook the concentration of a solution of sodium hydroxide. The concentration of a solution equals the mass
of what's dissolved divided by the total volume of the solution.
Here's how the student prepared the solution:
• The label on the graduated cylinder says:
empty weight: 6.20 g
• She put some solid sodium hydroxide into the graduated cylinder and weighed it. With the sodium hydroxide added, the cylinder weighed 34.241 g.
• She added water to the graduated cylinder and dissolved the sodium hydroxide completely. Then she read the total volume of the solution from the
markings on the graduated cylinder. The total volume of the solution was 61.69 mL.
What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant digits.
1
g mL
x10
A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. The concentration of a solution
equals the mass of what's dissolved divided by the total volume of the solution.
Here's how the student prepared the solution:
• The label on the graduated cylinder says:
empty weight: 1.55 g
• She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed
31.436 g.
• She added water to the graduated cylinder and dissolved the potassium chloride completely. Then she read the total volume of the solution
from the markings on the graduated cylinder. The total volume of the solution was 166.4 mL.
What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant digits.
-1
g.mL
x10
×
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Chapter 1 Solutions
Chemistry, Books a la Carte Plus Mastering Chemistry with eText -- Access Card Package (7th Edition)
Ch. 1 - PRACTICE 1.1 Express the following quantities in...Ch. 1 - APPLY 1.2 Express the following quantities in...Ch. 1 - PRACTICE 1.3 The melting point of table salt is...Ch. 1 - Prob. 1.4ACh. 1 - PRACTICE 1.5 Chloroform, a substance once used as...Ch. 1 - APPLY 1.6 You are beachcombing on summer vacation...Ch. 1 - PRACTICE 1.7 Some radioactive materials emit a...Ch. 1 - Prob. 1.8ACh. 1 - Prob. 1.9PCh. 1 - Prob. 1.10A
Ch. 1 - Prob. 1.11PCh. 1 - Prob. 1.12ACh. 1 - Prob. 1.13PCh. 1 - APPLY 1.14 A sodium chloride solution was prepared...Ch. 1 - PRACTICE 1.15 Gemstones are weighed in carats,...Ch. 1 - PRACTICE 1.15 Gemstones are weighed in carats,...Ch. 1 - Prob. 1.17PCh. 1 - APPLY 1.18 How large, in cubic centimeters, is the...Ch. 1 - Prob. 1.19PCh. 1 - PROBLEM 1.20 Calculate the percentage Of atoms on...Ch. 1 - Prob. 1.21PCh. 1 - Prob. 1.22PCh. 1 - Which block in each of the following drawings of a...Ch. 1 - Prob. 1.24CPCh. 1 - How many milliliters of water does the graduated...Ch. 1 - Assume that you have two graduated cylinders, one...Ch. 1 - The following cylinder contains three liquids that...Ch. 1 - The following statements pertain to the...Ch. 1 - The following statements pertain to the...Ch. 1 - Prob. 1.30SPCh. 1 - Prob. 1.31SPCh. 1 - Prob. 1.32SPCh. 1 - Prob. 1.33SPCh. 1 - Prob. 1.34SPCh. 1 - Prob. 1.35SPCh. 1 - 1.36 What is the difference between mass and...Ch. 1 - Prob. 1.37SPCh. 1 - Prob. 1.38SPCh. 1 - Prob. 1.39SPCh. 1 - Prob. 1.40SPCh. 1 - Prob. 1.41SPCh. 1 - Prob. 1.42SPCh. 1 - Prob. 1.43SPCh. 1 - Prob. 1.44SPCh. 1 - Prob. 1.45SPCh. 1 - Prob. 1.46SPCh. 1 - Prob. 1.47SPCh. 1 - Prob. 1.48SPCh. 1 - Prob. 1.49SPCh. 1 - How many picograms are in 1 mg? In 35 ng?Ch. 1 - Prob. 1.51SPCh. 1 - Prob. 1.52SPCh. 1 - Prob. 1.53SPCh. 1 - How many significant figures are in each of the...Ch. 1 - Prob. 1.55SPCh. 1 - Prob. 1.56SPCh. 1 - Prob. 1.57SPCh. 1 - Prob. 1.58SPCh. 1 - Prob. 1.59SPCh. 1 - Prob. 1.60SPCh. 1 - Prob. 1.61SPCh. 1 - Prob. 1.62SPCh. 1 - Prob. 1.63SPCh. 1 - Prob. 1.64SPCh. 1 - Prob. 1.65SPCh. 1 - Carry Out the following conversions: (a) How many...Ch. 1 - Prob. 1.67SPCh. 1 - Prob. 1.68SPCh. 1 - Prob. 1.69SPCh. 1 - Weights in England are commonly measured in...Ch. 1 - Prob. 1.71SPCh. 1 - Prob. 1.72SPCh. 1 - Prob. 1.73SPCh. 1 - The normal body temperature of a goat is 39.90C...Ch. 1 - Prob. 1.75SPCh. 1 - Prob. 1.76SPCh. 1 - Prob. 1.77SPCh. 1 - Suppose you were dissatisfied with both Celsius...Ch. 1 - Answer parts (a)-(d) of Problem 1.78 assuming that...Ch. 1 - Prob. 1.80SPCh. 1 - Prob. 1.81SPCh. 1 - Prob. 1.82SPCh. 1 - Prob. 1.83SPCh. 1 - Prob. 1.84SPCh. 1 - The density Of silver is 10.5 g/cm3. What is the...Ch. 1 - Prob. 1.86SPCh. 1 - Prob. 1.87SPCh. 1 - Prob. 1.88SPCh. 1 - An experiment is performed to determine if pennies...Ch. 1 - Which has more kinetic energy, a 1400 kg car...Ch. 1 - Prob. 1.91SPCh. 1 - Prob. 1.92SPCh. 1 - Prob. 1.93SPCh. 1 - Prob. 1.94SPCh. 1 - Prob. 1.95SPCh. 1 - Prob. 1.96CPCh. 1 - Lignum vitae is a hard, durable, and extremely...Ch. 1 - Prob. 1.98CPCh. 1 - Prob. 1.99CPCh. 1 - Prob. 1.100CPCh. 1 - Prob. 1.101CPCh. 1 - Answer the following questions: (a) An old rule of...Ch. 1 - A 1.0 ounce piece of chocolate contains 15 mg of...Ch. 1 - Prob. 1.104CPCh. 1 - Prob. 1.105CPCh. 1 - Prob. 1.106CPCh. 1 - Prob. 1.107CPCh. 1 - Prob. 1.108CPCh. 1 - Prob. 1.109CPCh. 1 - Prob. 1.110CPCh. 1 - Prob. 1.111CPCh. 1 - Brass is a copper—zinc alloy. What is the mass in...Ch. 1 - Prob. 1.113CPCh. 1 - The element gallium (Ga) has the second largest...Ch. 1 - Distances over land are measured in statute miles...
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