Concept explainers
(a)
Interpretation:
The given measurement is to be subtracted and the answer is rounded off to the proper significant digit.
Concept introduction:
During the addition or subtraction of measurements, the answer is found to be limited by the value with the greatest uncertainty that is the answer by the decimal place is limited. The final unit in addition and subtraction remains the same as the unit in each single data.
(b)
Interpretation:
The given measurement is to be subtracted and the answer is rounded off to the proper significant digit.
Concept introduction:
During the addition or subtraction of measurements, the answer is found to be limited by the value with the greatest uncertainty that is the answer by the decimal place is limited. The final unit in addition and subtraction remains the same as the unit in each single data.
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Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
- Perform the following arithmetic operations and report the result to the proper number of significant figures: (a) 317.5 mL + 0.675 mL,(b) 47.80 L − 2.075 L, (c) 13.5 g ÷ 45.18 L, (d) 6.25 cm × 1.175 cm, (e) 5.46 × 102 g + 4.991 × 103g.arrow_forward3. Solve the following problems, stating answers to the proper number of significant figures:(a) 12.62 + 1.5 + 0.25 = (b) (2.25 x 103) (4.80 x 104) = (c) 10.4 + 3.75 (1.5 x 104) =arrow_forward3. Solve the following problems, stating answers to the proper number of significant figures: (a) 12.62 + 1.5 + 0.25 = (b) (2.25 x 10³) (4.80 x 104) = (c) 10.4 + 3.75 (1.5 x 104) =arrow_forward
- Carry out the following conversions: (a) 1.42 lightyears to miles (a light-year is an astronomical measure of distance—the distance traveled by light in a year, or 365 days; the speed of light is 3.00x10^8 m/s), (b) 32.4 yd to centimeters, (c) 3.0 3x10^10 cm/s to ft/s.arrow_forwardExpress the results of the following multiplications and divisions to the proper number of significant figures. All of the numbers are measured quantities. (a) 129.587 × 32.33 = 4.7791 (b) 3.21 × 5.793 10566.9 (c) 3.584 × 1029 (d) (5.247 × 10'3) × (1.3 × 10-17) =arrow_forward(282.7×105)−(1.100×103)]×2.8990 Express your answer to the appropriate number of significant digits.arrow_forward
- An empty Erlenmeyer flask weighs 235.6 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 571.3 g. (a) What is the volume of water in the flask? Enter your answer in scientific notation. (b) How much does the flask weigh when filled with the same volume of chloroform (d = 1.48 g/cm3)?arrow_forwardAn individual weighs 81.4 kg and is 1.78 m tall. (a) What is the person's equivalent measurement in pounds? (b) What is the person's equivalent measurement in feet?arrow_forwardPerform the following calculations and report each answer with the correct number of significant figures.(a) 62.8 × 34(b) 0.147 + 0.0066 + 0.012(c) 38 × 95 × 1.792(d) 15 – 0.15 – 0.6155(e) 8.78 × ((0.0500)/(0.478))(f) 140 + 7.68 + 0.014(g) 28.7 – 0.0483(h) ((88.5 − 87.57)/(45.13))arrow_forward
- Calculate these volumes.(a) What is the volume of 35 g iodine, density = 4.93 g/cm 3 ?(b) What is the volume of 33.28 g gaseous hydrogen, density = 0.089 g/L?arrow_forward2. Carry out the following operations and express the answer with the appropriate number of significant figures and units: (a) (5.231 mm)(6.1 mm), (b) 72.3 g/1.5 mL, (c) 12.21 g+0.0132 g, and (d) 31.03 g+ 12 mg.arrow_forwardGive only typing answer with explanation and conclusion An empty Erlenmeyer flask weighs 215.8 g. When filled with water (d = 1.00 g/cm3), the flask and its contents weigh 571.1 g. (a) What is the volume of water in the flask? Enter your answer in scientific notation. × 10 cm3 (b) How much does the flask weigh when filled with the same volume of chloroform (d = 1.48 g/cm3)?arrow_forward
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