Concept explainers
(a)
Interpretation:
The number
Concept introduction:
The scientific notation is the standard method of representation of a long or tedious measurement. The number is expressed as number times ten raised to some power.
For instance, mass of a proton is conveniently expressed as
While a number is written in scientific notations it is scaled down to some digit between 1 to10 ten and the places that previously contain zeroes are changed to ten raised to some power.
(b)
Interpretation:
The number
Concept introduction:
The scientific notation is the standard method of representation of a long or tedious measurement. The number is expressed as number times ten raised to some power.
For instance, mass of a proton is conveniently expressed as
While a number is written in scientific notations it is scaled down to some digit between 1 to10 ten and the places that previously contain zeroes are changed to ten raised to some power.
(c)
Interpretation:
The number
Concept introduction:
The scientific notation is the standard method of representation of a long or tedious measurement. The number is expressed as number times ten raised to some power.
For instance, mass of a proton is conveniently expressed as
While a number is written in scientific notations it is scaled down to some digit between 1 to10 ten and the places that previously contain zeroes are changed to ten raised to some power.
(d)
Interpretation:
The number
Concept introduction:
The scientific notation is the standard method of representation of a long or tedious measurement. The number is expressed as number times ten raised to some power.
For instance, mass of a proton is conveniently expressed as
While a number is written in scientific notations it is scaled down to some digit between 1 to10 ten and the places that previously contain zeroes are changed to ten raised to some power.
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General, Organic, & Biological Chemistry
- Question 1: Determine whether the answer to each calculation has the correct number of significant figures. If not, correct it: 1A) 89.763 + 22.4581 = 3.997 1B) 4.32x1012 ÷ 3.1x104 = 1.4x1016 Question 2: Perform this calculation to the correct number of significant figures 9443 + 45 – 9.9 x 8.1x106 Question 3: Perform the following conversions: 3A) 78.3 cm to inches 3B) 22.5 lbs. to micrograms 3C) 396 in to L 4A) A new penny has a mass of 2.49g and a volume of 0.349cm³. Is the penny pure copper?arrow_forwardDetermine the number of significant figures. 1. 100432.6783 / 2 2. 0.000004523 x 2.34 + 10.00000 3. 0.000004523 x 2.34 + 10arrow_forwardMultiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits.arrow_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_forwardWhat decimal power does the abbreviation pico represent? 1 x 106 1 × 10⁹ 1 x 10-1 1 x 10-12 1 x 10-15arrow_forwardMultiply or divide the following measurements. Be sure each answer you enter contains the correct number of significant digits. 145.4 m 0.81 s = 696.9 mol 0.59 L 7.8084 mol L X 0.95 L m mol L mol 0 x10 Xarrow_forward
- Add 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_forwardAssuming all of the numbers are measured quantities, perform the following arithmetic setups and give the answer to correct number of significant figures. 9.750 – 9.015 a. 1.811 9.345 + 3.005 b. 8.811 с. (7.50 + 8.53) х 7.71 d. 0.81 × 0.86 + 12.36arrow_forwardHow many significant figures are in 3.05481727x10^4?arrow_forward
- Multiply 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_forwardWhat decimal power does the abbreviation f represent? 1 x 106 O 1 × 10³ 1 x 10-1 O 1x 10-15 O 1 x 10-12arrow_forwardWhich of the measurements contain four significant figures? 5.0×10^4 3957 1.000×10–3 0.01000.0100 0.00010.0001 5000arrow_forward
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