Concept explainers
(a)
Interpretation:
For the given set of numbers the decimals has to be given.
Concept Introduction: The exponential number
To give: the decimals for the given number.
(b)
Interpretation:
For the given set of numbers the decimals has to be given.
Concept Introduction: The exponential number
To give: the decimals for the given number
(c)
Interpretation:
For the given set of numbers the decimals has to be given.
Concept Introduction: The exponential number
To give: the decimals for the given number
(d)
Interpretation:
For the given set of numbers the decimals has to be given.
Concept Introduction: The exponential number
To give: the decimals for the given number
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CHEMISTRY:ATOMS FIRST (LL)>CUSTOM PKG.<
- (a) To three decimal places, what is the volume of a cube (cm3) with an edge length of 0.843 cm?(b) If the cube in part (a) is copper and has a mass of 5.34 g, what is the density of copper to two decimal places?arrow_forwardHow many significant figures are there in the following numbers? (a)0.00740 (b)609.20 (c)9.005 x 1011arrow_forwardFor each of the following numbers, determine the number ofsignificant figures it contains, rewrite it without using scientific notation, and determine thenumber of significant figures in the result. (a) 3.050 × 10–4 , (b) 4.3200 × 102 , (c) 8.001 × 10–7, (d) 2.006080 × 105 , (e) 1.503 × 10–5 , (f) 6.07510 × 104arrow_forward
- Perform 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_forwardCarry 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_forwardHow many significant figures are there in each of the following?(a) 81.0 ± 0.8 (b) 3.827 ✕ 109 (c) 2.94 ✕ 10−6 (d) 0.0015arrow_forward
- Precious metals and gems are measured in Troy weights in the English system. Use the unit relationship given below to perform the requested calculations (A) what is the mass of 1.0 Troy ounces in grams? (B) The density of gold is 19.3g/cm^3. What is the volume of 12.5 carats of gold in mL? (C) a thief steals 531 pennyweights of silver. How many moles is that? (D) A wedding ring contains 2.56 x 10^22 atoms of diamond. How much are the diamonds in the ring worth if a 1-carat diamond costs $7600.0 ?arrow_forwardLight travels in a vacuum at a speed of 3.00 × 108 m s-1 .(a) Convert this speed to miles per second.(b) Express this speed in furlongs per fortnight, a littleused unit of speed. (A furlong, a distance used in horse racing, is 660 ft; a fortnight is exactly 2 weeks.)arrow_forwardGive the name and symbol of the prefixes used with SI units to indicate multiplication by the following exact quantities.(a) 103(b) 10−2(c) 0.1(d) 10−3(e) 1,000,000(f) 0.000001arrow_forward
- Calculate these masses.(a) What is the mass of 6.00 cm3 of mercury, density = 13.5939 g/cm3?(b) What is the mass of 25.0 mL octane, density = 0.702 g/cm3?arrow_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_forwardThe world’s oceans have a combined volume of 3.204 x 10^8 miles^3. (A) If the average density of ocean water is 1.029 g/mL, what is the combined mass of the world’s oceans?arrow_forward
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