Concept explainers
a)
Interpretation:
Concept introduction:The general and normal method to write numbers is called standard notation. It is written with help of numerical digits. This notation is generally used in everyday maths. For example, 546000, 983000 and 70000000 are expressed in standard notations.
b)
Interpretation:
Concept introduction:The general and normal method to write numbers is called standard notation. It is written with help of numerical digits. This notation is generally used in everyday maths. For example, 546000, 983000 and 70000000 are expressed in standard notations.
c)
Interpretation:
Concept introduction:The general and normal method to write numbers is called standard notation. It is written with help of numerical digits. This notation is generally used in everyday maths. For example, 546000, 983000 and 70000000 are expressed in standard notations.
d)
Interpretation:
Concept introduction:The general and normal method to write numbers is called standard notation. It is written with help of numerical digits. This notation is generally used in everyday maths. For example, 546000, 983000 and 70000000 are expressed in standard notations.
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Check out a sample textbook solutionChapter 1 Solutions
Principles of General Chemistry
- Perform the following calculations and report each answer with the correct number of significant figures. (a) 635 ✕ 335 (b) (5.23 ✕ 102) ✕ (6.8 ✕ 103) (c) 27.2/13.383 (d) 8179 ✕ 0.000051 (e) 14.23 + 27360 + 84.5721 (f) 47.2 + 0.291arrow_forwardIndicate how many significant figures there are in (a) 0.305 0 (b) 0.003 050 (c) 1.003 X 104arrow_forwardExpress the results of the following additions and subtractions to the proper number of significant figures. All of thenumbers are measured quantities.(a) 245.876+ 4.65+ 0.3678 =(b) 798.36 - 1005.7 + 129.652 =(c) 7.98 × 1017 + 6.472 × 1019 =(d) (4.32 × 10-15) - (6.257 × 10-14) - (2.136 × 10-13) =arrow_forward
- How 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_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_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_forward
- Express the results of the following additions and subtractions to the proper number of significant figures. All of thenumbers are measured quantities.(a) 67.314+8.63 - 243.198=(b) 4.31 +64 +7.19 =(c) 3.1256 × 1015 - 4.631 × 1013 =(d) 2.41 × 10-26 -7.83 × 10-25 =arrow_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_forward2. Report the answers of these calculations to the correct number of significant figures: (a) 5.354 x 4.812 x 6.8312 = ? (b) 29.4464 + 10.395 +5.20853= ? (c) (5.7268 x 10¹) (6.9 x 10¹0)/1.0= ? (Report answer in exponential notation.)arrow_forward
- Express the following numbers as decimals:(a) 1.52 × 10−2 , (b) 7.78 × 10−8 , (c) 1 × 10−6, (d) 1.6001 × 103.arrow_forwardPerform 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_forwardConvert the following from scientific notation to decimalform.(a) 5.37 × 10-4(b) 9.390 × 106(c) -2.47 × 10-3(d) 6.020 × 10-3(e) 2 × 104arrow_forward
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