General Chemistry (4th Edition)

Published by University Science Books
ISBN 10: 1891389602
ISBN 13: 978-1-89138-960-3

Chapter 1 Chemistry and the Scientific Method - Problems: 5

Answer

(a) $2.77 × 10^{-8}$ (b) $1.82 × 10^{-3}$ (c) $1.23 × 10^{8}$ (d) $1.254 × 10^{3}$

Work Step by Step

(a) 0.000 000 0277 Find the first numbers that arent 0's 277 Next add a decimal after the first number 2.77 Multiply it by 10 to the power of how many 0's were before/after the decimal place 2.77 x $10^{-8}$ The power is -8 because there were 8, 0's in the original number that were before the decimal place (b) 0.001 82 Find the first numbers that arent 0's 182 Add a decimal after the first number 1.82 Multiply it by 10 to the power of how many 0's were before/after the decimal place 1.82 × $10^{-3}$ The power is -3 because there were 3, 0's in the original number that were before the decimal place (c) 123 000 000 Find the first numbers that arent 0's 123 Add a decimal after the first number 1.23 Multiply it by 10 to the power of how many 0's were before/after the decimal place 1.23 × $10^{8}$ The power is 8 because there were 8, 0's in the original number that were before the decimal place (d) 1254 Find the first numbers that arent 0's 1254 Add a decimal after the first number 1.254 Multiply it by 10 to the power of how many 0's were before/after the decimal place 1.254 × $10^{3}$ The power is 3 because there were 3, 0's in the original number that were before the decimal place
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.