Calculate the answer. Express it in scientific notation.?
Calculate the answer. Express it in scientific notation. (Make sure there are no extra spaces in the answer, the first number is between 1 and 10, and the exponent for 10 is preceded by an "e".) All answers should have the correct number of significant figures. (6.93 x 10^1)(2.0 x 10^-4) (386)(204)
Express in scientific notation. Write your answer with the proper number of significant figures.?
Group like terms together so you get (3 x 4) (10*4 x 10*23) = 12 x (10*4 x 10*23) To multiply numbers in sc. notation, you add their exponents together (by the way, to divide numbers, you would similarly subtract the exponent for the denominator from the exponent for the numerator). = 12 x 10*27 Or you could state this as 1 x 10*28 using one sig fig.
Express in scientific notation. Write your answer with the proper number of significant figures. ?
Question #10 Express in scientific notation. Write your answer with the proper number of significant figures. (Place your answers in the text box as 1.234e5 where the first number is between 1 and 10 and the number after the e is the exponent for 10.) (3 X 10^3) (4X10^23)= I put 1.2^28 or 1.2e28 or 12x10^27 but none of them came out right. #11 (9x10^9) / (4.5x10^1) I put 2^10 or 2e10. Question #12 1.24x10^6 / 6.2 x 10^3 Question #13 69,000,000,000 = I put 69e-9 Question #14 (4x10^5) (6x10^23) / 1.2x10^2 = I put 2^31 or 2e31. Question #15 (7x10^-8) / (3x10^4) (5x10^5) = I put 116.6666667 or 4.67e-18 Can you show me the answers or show me how to type them correctly in a calculator because I've been trying to figure this out for too long. Thanks.
Do you have to state all of the significant figures when writing in scientific notation?
When using scientific notation, you usually would report to the correct number of sig figs you figured out. In the 200.000 example, you would indeed answer as 2.00000 x 10^2. However, if it were 200, then it should be 2 x 10^2 (assuming you are familiar with the sig fig rules?). This all maintains the correct accuracy of your calculations.
Chem help on Significant figures, scientific notations?
1) 0.0015 Given a negative exponent the decimal is moved that many places to the left. 2) 2.0 x 10^1 In scientific notation the number must be less than 10. 3)7.09x10^-2 You wouldn't put a zero as the first number, but account for it in the exponent. 4)7.72x10^3 5) 1.110 is pretty much in scientific notation, but could be written, 1.11x10^0 6)5.12x10^-3 7)3082000000000 1) 4.70x10^-5