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Bonus points Solve the following problems and express the results in scientific notation with the correct...
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
1. Express the following numbers in correct scientific notation. 0.007230 -72800 308.70 2. How many significant figures are there in the following numbers? 650.00 102200 10. 45.034 2.60 x 1022 17.2010 3. Round off the following numbers to TWO significant figures. 34.459 0.07918227 700-2 6.854 x 10- 0.729
3. Express the following numbers and computed results in scientific notation, paying attention to significant figures a. 0.000000550 b. 3,200,000
the answers to problem number 3 please 2. Express the following numbers in correcet scientific notation. (Total 18 pts; 6 pts each) 293.43 3 9.30 o 0.00930 3. Round off the following numbers to three significant figures. (Total 20 pts; 4 pts each) 58240 5Raoo 0.07912 400.4 LOO 9.245 x 104 7.999
Express the following number in correct exponential (scientific) notation. 5000.5 x 103
It is often necessary to do calculations using scientific notation when working chemistry problems. For practice, perform each of the following calculations. (2.60 x 10") (4.85 x 104) = 8.65 x 10-4 7.95 x 106 - 4.85 x 104 (5.09 x 10") (5.50 x 10 ) 8.65 x 10- Converting between metric units is necessary to solve many chemistry problems. For practice, complete the following table. millimeters meters centimeters 93.2 14.6 56.7 Converting between metric units is necessary to solve...
USE CORRECT SIG FIGS AND SCIENTIFIC NOTATION Determine the molar (M) concentration of a solution made by dissolving 7.714E1 g of CaCl2 in sufficient water to make 250.0 mL of solution. Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimale.g. 2.5E5 for 2.5 x 105) Numeric Answer: Determine the number of grams of potassium permanganate present in 5.25E1 mL of a 0.250 M KMnO4(aq) solution. 0 Respond with the...
QUESTION 1 A. Change each of the following to scientific notation: 1. 0.000147 = 6.0.543 = 2. 648 = 7. 1.64= 3. 0.00343 = 8. 833= 4. 7530 = 9. 200.0 x 102 = 5.71,200 = 10. 0.014 x 102 = B. Change each of the following from scientific notation to standard decimal notation: 1.1.76 x 102 = 6. 1.6 x 100 = 2. 4.27 x 10-3 = 7. 9.85 x 10-6 = 3. 9.85 x 10-2 = 8. 3.49...
answer with two sig figs scientific notation QB 15.10 Level 1 Homework. Unanswered In an aqueous solution, if the [OH-] is 7.5E-9 M what is the [H30+)? 0 Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Numeric Answer: Unanswered . 2 attempts left Submit In an aqueous solution, if the [H3O+] is 7.1E-9 M what is the [OH-]? Respond with the correct...
Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter your answer with the correct number of significant figures.885.75 g + 10.151 g - 25.50 g Calculate the value of the following in exponential form, using standard scientific or "e" notation (for example, 105 = 1.05e2). Enter the correct number of significant figures. (2.700e2 cm)3 / (1.20e3 cm)2 Calculate the value of the following in exponential form, using standard...