a) =0.6274×1.00×103/36.13 (36.13347612.... rounds upto 36.13 as 2.205 has 4 significant figures)
=0.02×103 =2.0×10 (0.017365...... rounds upto 2 significant figures)
Note: Exact number has infinite number of significant figures
b) = 70×10-15 (72 rounds upto one significant figure )
c) = 5.70×10-23 ( 5.701268....... rounds upto 3 significant figures)
d) =35.8×10-4 (35.83735.......rounds upto 3 significant figures)
Note: Multiplication and Division- consider the lowest number of significant figures
Perform each of the following calculations and express the answer with the correct number of significant...
1.72. Perform each of the following calculations, and express the answer with the correct number of significant figures (only the highlighted values are exact): a. [(12 × 60.0) + 55.3)/(5.000 × 103) = b. (2.00 × 1839)/[(6.02 × 1023) × (1.61 × 10-8)3] = c. 0.8161/2.205 × (2.54)3] = d. (9.00 × 60.0) + (50.0 × 60.0) + (3.00 × 101) =
Perform the following calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of significant figures. To avoid rounding errors, do not round your answers until the very end of your calculations. Perform the following calculations and determine the absolute and percent relative uncertainty. Express each answer with the correct number of significant figures. To avoid rounding errors, do not round your answers until the very end of your calculations Absolute Uncertainty Number Percent...
Perform the following operations and express your answers using the appropriate number of significant figures. 60.0 kg + 22.1 kg + 0.52 kg 8.75 ms − 750.0 μ s ( 1.50 × 10 4 m/s ) × 120.0 s π ( 0.22 m 2 + 220 cm 2 ) sin 65.0 ∘ × cos 25.05
Need answer for D only on question 26 with explanation Review Measurement and Calculations in Chemistry 27c a. Th 26. Perform the following mathematical operations, and express the result to the correct number of significant figures. a. 6.022 × 1023× 1.05 × 102 b. 6.6262 × 10-34 × 2.998 × 108 2.54 × 10-9 32. Al is b. c. 1.285 × 10-2 + 1.24 × 10-3 + 1.879 × 10-1 (1.00866-1.00728) d. 6.02205 × 1023 9.875 × 102-9.795 × 102...
Perform each of the following conversions. 303 Cal to kilowatt-hours. (Express your answer using three significant figures) 21 J to calories (cal). (Express your answer using two significant figures)
Calculate and express your answer to the correct number of significant figures (1.00866 - 1.00728)/6.02205 x 10^23
Perform the following calculations to the correct number of significant figures. Part A (22.4856×2.55)+378.20 Part B (86.5−22.060)÷0.0055 Part C (582÷905.0)+5.35 Part D [(2.68×106)÷53.589]+135.65
Express the following numbers in scientific notation. Make sure you use the correct number of significant figures. Part 1 out of 4 (a) 145.75 + (2.3 times 10^-1) = times 10
Perform each of the indicated operations and report the answer to the proper number of significant figures. 1. 10.052-9.8742 2. 6.75 x 10^-8 + 5.43 x 10^-7 3. 0.01953 + (7.32 x 10^-3) 4. (3.84 x 10^-2)^3 5. (0.000738 - 8.3 x 10^-5) / (6.298 x 10^-8) 6. (8.52 + 4.1586) x (18.73 + 153.2) 7. √8.32 x 10^-3
1. Perform the following and express the answer in scientific notation with proper significant figures. 1. 10.6 cm_______________ =____________ m 2. 450,000 ug_______________ =____________ g 3. 12 mL_______________ =____________ cL 4. 50 Mton_______________ =____________ ton 5. 4,600 nm_______________ =____________ um 6. 0.058 kg_______________ =____________ dg 7. 2460 uL_______________ =____________ dL 8. 0.015 s_______________ =____________ ms 9. 0.66 um_______________ =____________ mm 10. 0.062 g_______________ =____________ cg 11. 12,500 cL_______________ =____________ L 12. 61,500 nm_______________ =____________ cm 13. 0.0520 kg_______________ =____________ dag...