Concept explainers
(a)
Interpretation:
Concept Introduction:
For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.
(b)
Interpretation:
Concept Introduction:
For addition, the number with minimum number of significant figures is chosen and in the final answer same number of significant number is kept. The answer should not be more precise than the number with minimum number of significant figures.
(c)
Interpretation:
Concept Introduction:
For addition, the number with minimum number of significant figures after decimal point is chosen and in the final answer same number of significant number is kept after decimal point. The answer should not be more precise than the number with minimum number of significant figures.
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Introduction To General, Organic, And Biochemistry
- 1-78 The kinetic energy possessed by an object with a mass of 1 g moving with a velocity of 1 cm/s is called 1 erg. What is the kinetic energy, in ergs, of an athlete with a mass of 127 lb running at a velocity of 14.7 mi/h?arrow_forward1-76 If the density of air is 1.25 10-3 g/cc, what is the mass in kilograms of the air in a room that is 5.3 m long, 4.2 m wide, and 2.0 m high?arrow_forward1-67 If 168 g of an unknown liquid requires 2750 cal of heat to raise its temperature from 26oC to 74oC, what is the specific heat of the liquid?arrow_forward
- 1-89 Consider butter, density 0.860 g/mL, and sand, density 2.28 g/mL. (a) If 1.00 mL of butter is thoroughly mixed with 1.00 mL of sand, what is the density of the mixture? (b) What would be the density of the mixture if 1.00 g of the same butter were mixed with 1.00 g of the same sand?arrow_forwardQ1: Fill the below situations in the table Chemical change Physical change Melting of wax • Evaporation of alcohol • Burning a paper • Dissolving salt in water • Grinding a salt, then reacting it with another • Rusting of iron Q2: Find the answer according significant figures? • 1.00021+ 0.112 - 0.0032 • 10. × 15 2.07+0.031 7.001(1.9–0.04)arrow_forwardPerform each of the following calculations, and give an answer with the correct number of significant figures. (7 × 10-5) (6.30 × 104) (7.76 × 10-8) Express your answer using the correct number of significant figures. ΨΕ ΑΣΦ 6.10 Submit 8 Part F ? Previous Answers Request Answer X Incorrect; Try Again; 5 attempts remaining (6.15 × 10²) (1.98 × 10-³) (2.516 × 10-³)(68.0) Express your answer using the correct number of significant figures. ΨΠ ΑΣΦ ?arrow_forward
- Q: (4.80 x 10^{-107}) X (5.00 x 10^{-11})= a 2.40 x 10^{-96} b 24.0 x 10^{-96} c 2.40 x 10^{-118} d 2.40 x 10^{-117}arrow_forward(3.41 × 10-1 - 5.7 × 10-3)*[(6.8 × 10-2)/(1.82 × 10-3)]arrow_forwardChemistry It is often necessary to do calculations using scientific notation when working chemistry problems. For practice, perform each of the following calculations. (2.30 x 10-) 10-) (1.00 (1.00 x 10) = [ 1.10 x 10-5 6.98 x 10¹ (2.30 × 10-5) (1.15 × 10-) X (1.00×10*) (1.10× 10-5)arrow_forward
- Perform the following calculations and report each answer with the correct number of significant figures. (a) 60.9 x 35 4.0 2100 (b) 0.144 +0.0070 + 0.011 4.0 X (c) 37 x 92 x 1.857 4.0 6400 (d) 16 4.0 (e) 8.63 x (f) 4.0 (h) 0.18 0.6410 4.0 180 + 7.40 + 0.013 0.0350 0.502 (g) 28.7 0.0483 4.0 4.0 (92.4 91.46) 44.70 X X Check the number of significant figures.arrow_forwardSignificant Figures 1-25 How many significant figures are in the following? (a) 0.012 (b) 0.10203 (c) 36.042 (d) 8401.0 (e) 32100 (f) 0.0402 (g) 0.000012arrow_forwardBoxes 1-4 box 1 answer choices: 0, 3, 1, 2, or 4. box 2 answer choices: 2, 1, 3, 0, or 4. box 3 answer choices: 10.7, 0.241. 0.482, 0.804, 5.36, 0.121, 3.21, or 1.61. Box 4 answer choices: L^2/mol^2•s, L^3/mol^3•s, L/mol•s, 1/s, or L^4/mol^4•sarrow_forward
- Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning