Concept explainers
(a)
Interpretation:
The given power of
Concept introduction:
The numbers are written as the power of
(b)
Interpretation:
The given power of
Concept introduction:
The numbers are written as the power of
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Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
- 1-85 In Japan, high-speed “bullet trains” move with an average speed of 220. km./h. If Dallas and Los Angeles were connected by such a train, how long would it take to travel nonstop between these cities (a distance of 1490. miles)?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_forwardPerform the following calculations and report each answer with the correct number of significant figures.(a) 628 × 342(b) (5.63 × 102) × (7.4 × 103)(c) (28.0)/(13.483)(d) 8119 × 0.000023(e) 14.98 + 27,340 + 84.7593(f) 42.7 + 0.259arrow_forward
- Underline the significant zeros in the following numbers:(a) 0.41 (b) 0.041 (c) 0.0410 (d) 4.0100×104arrow_forwardRound off each of the following numbers to two significant figures:(a) 0.436(b) 9.000(c) 27.2(d) 135(e) 1.497 × 10−3(f) 0.445arrow_forwardWhich of the following include exact numbers?(a) The speed of light in a vacuum is a physical constant; to six significant figures, it is 2.99792×108 m/s.(b) The density of mercury at 25°C is 13.53 g/mL.(c) There are 3600 s in 1 h.(d) In 2010, the United States had 50 states.arrow_forward
- Which of the following include exact numbers?(a) The speed of light in a vacuum is a physical constant; to six significant figures, it is 2.99792X10⁸m/s.(b) The density of mercury at 25°C is 13.53 g/mL.(c) There are 3600 s in 1 h.(d) In 2003, the United States had 50 states.arrow_forwardPerform each of the following operations, using your calculator where possible:(a) Write the number 0.0054 in standard exponential notation. (b) (5.0 x 10-2) + (4.7 x 10-3) (c) (5.98 x 1012) (2.77 x 10-5) (d) 4√1.75 x 10-12arrow_forwardExpress each of the following products in exponential form: (a) 2 × 2 × 2 (b) 1/2 × 1/2 × ½arrow_forward
- How many significant figures are there in each of the following measurements? (a) 4.380 x 10-8 m = (b) 9.100 x 10 4 cm = (c) 5.10 x 10-7 m =arrow_forwardEvaluate each of the following mathematical expressions, and express the answer to the correct number of significant digits. (a) 45.3468 + 0.85 + 7.468 (b) 9.4458 + 3.7675 - 2.71 (c) 0.8294 + 0.217 + 4.96 (d) (7.611 + 9.81 + 3.6117) / 3.0arrow_forwardBe sure to answer all parts. Carry out the following operations as if they were calculations of experimental results and express each answer in standard notation with the correct number of significant figures and with the correct units. Enter both the answer and the units in the answer field. (a) 7.2129 m + 0.6 m + 4.33 m (b) 3.70 g-4.0933 g (c) 4.51 cm x 5.9233 cmarrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning