CHEMISTRY
2nd Edition
ISBN: 9781593995782
Author: OpenStax
Publisher: XANEDU PUBLISHING
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Textbook Question
Chapter 1, Problem 48E
How many significant figures are contained in each of the following measurements?
- 38.7 g
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A rectangular block of copper alloy has a mass of 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by
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402938 kg/m³3
2650 kg/m³
8922 kg/m³
5498 kg/m³
3
Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits.
mol
2.09
-x 2.45 L = Omol
L
200.7 g+37.6 mL =
411.81 m+0.85 s = 口
X
5
olo
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Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits.
Chapter 1 Solutions
CHEMISTRY
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Ch. 1 - How does a homogeneous mixture differ from a pure...Ch. 1 - How does an element differ from a compound? How...Ch. 1 - How do molecules of elements and molecules of...Ch. 1 - How does an atom differ from a molecule? In what...Ch. 1 - Many of the items you purchase are mixtures of...Ch. 1 - Classify each of the following as an element, a...Ch. 1 - Classify each of the following as an element, a...Ch. 1 - A sulfur atom and a sulfur molecule are not...Ch. 1 - How are the molecules in oxygen gas, the molecules...Ch. 1 - We refer to astronauts in space as weightless, but...Ch. 1 - As we drive an automobile, we don’t think about...Ch. 1 - Matter is everywhere around us. 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How many liters...Ch. 1 - The diameter of a red blood cell is about 3104 in....Ch. 1 - The distance between the centers of the two oxygen...Ch. 1 - Is a 197-lb weight lifter light enough to compete...Ch. 1 - A very good 197-Ib weight lifter lifted 192 kg in...Ch. 1 - Many medical laboratory tests are run using 5.0 L...Ch. 1 - If an aspirin tablet Contains 325 mg aspirin, how...Ch. 1 - Use scientific (exponential) notation to express...Ch. 1 - Complete the following conversions between SI...Ch. 1 - Gasoline is sold by the liter in many countries....Ch. 1 - Milk is sold by the liter in many Countries. What...Ch. 1 - A long ton is defined as exactly 2240 lb. 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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- A person weighed 15 pennies on a balance and recorded the following masses: 3.112 g 3.109 g 3.059 g 2.467 g 3.079 g 2.518 g 3.129 g 2.545 g 3.050 g 3.053 g 3.054 g 3.072 g 3.081 g 3.131 g 3.064 g Curious about the results, he looked at the dates on each penny. Two of the light pennies were minted in 1983 and one in 1982. The dates on the 12 heavier pennies ranged from 1970 to 1982. Two of the 12 heavier pennies were minted in 1982. a. Do you think the Bureau of the Mint changed the way it made pennies? Explain. b. The person calculated the average mass of the 12 heavy pennies. He expressed this average as 3.0828 g 0.0482 g. What is wrong with the numbers in this result, and how should the value be expressed?arrow_forwardExpress the measurements to the requested number of significant figures. (a) 96,485 J/C to three significant figures (b) 2.9979 g/cm3 to three significant figures (c) 0.0597 mL to one significant figure (d) 6.626 1034 kg to two significant figuresarrow_forwardHow many significant figures are contained in each of the following measurements? 53 cm 2.05108m 86,002 J 9.740104m/s 10.0613m3 0.17 g/mL 0.88400 sarrow_forward
- Perform the calculations below and give the results with correct significant figures. 27.8 g + 5.461 g − 3.89 g = 2.13 in × 0.96 in × 4.508 in = (1.751 × 42.2) − (8.02 × 103 ÷ 764) = g in3arrow_forwardMultiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 102.68 mol = 0.37 L = 898.8 g 41.2 mL = 2.09476 g mL X 2.3 mL = mol L g mL g x10 X Śarrow_forwardMultiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 2.09 cm X 4.125 cm = 0.934 mol L X 1.65 L = 227.41 m 0.50 s = cm 2 mol m S x10 Xarrow_forward
- Using the listed equalities, convert the following numbers to different units. Make sure that you have the correct number of significant figures. 1 inch = 2.54 cm, 1 foot = 12 inches, 1 mile = 5280 feet, 1 yard = 3 feet, 1 nautical mile = 1.852 kilometers, 1 oz = 28.35 grams, 1000 mg = 1 gram, 1000 grams = 1 kg, 1 m = 100 cm, 1 Km = 1000 m 1.825 x 105 ft = _________ Nautical miles 3.650 kg = ___________________ mgarrow_forwardMultiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. mol 290.2 mol 54.808 L = x10 mol 881.88 mol ÷ 0.39 L 78.08 cm x 41. cm %3D cm 2. IIarrow_forwardAdd or subtract the following measurements. Be sure each answer you enter contains the correct number of significant digits. 1.90 g - 0.9 g == g 0,8 g + 1.200 g = По g 2.777 g 1.50 g - = ☐ x10 X garrow_forward
- Multiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. mol 363.2 mol + 0.37 L = 0- L 375.67 m 33.69 7.81 cm x 2.20 cm = 0- D Xarrow_forwardWhen you perform the following operations, how many significant figures should your answer have? Assume these are measured quantities. 312.3415 + 0.0100 = 07 8. 1 3 6.arrow_forwardMultiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 960.89 m 0.59 s = 0.934 2.09 mol L g mL × 0.25 L = x 4.55 mL m S mol 8 x10 X Sarrow_forward
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