Question

Please help, I'm not sure about my answer 2.281x10^-1 ml
Calculate the volume of a cylinder in milliters. Use the correct number of significant figures. diameter = 5.11mm height = 11.12mm

Answer 1

i believe its 2.281x10^2

Answer 2

because its v=n(2.555^2)11.12

v=228.1

Answer 3

2.281x10^-1 = 0.2281

Answer 4

remember, you use negative exponent when you want to put it back into a decimal number

Answer 5

try on this calculator http://www.google.ca/search?client=safari&rls=en&q=calculator&ie=UTF-8&oe=UTF-8&redir_esc=&ei=z7ZOUL-uB6e9igKtwIHgDQ

Answer 6

I'm using the factor label method to convert
228.1mm^3 * (1cm)/(10mm)^3, I get 2.281 x 10^-1

Answer 7

@Andrey what formula did you use?

Answer 8

for the volume i mean

Answer 9

v = (pi*diameter^2 * height)/4

Answer 10

yep you're right. 0.281 mL

Answer 11

http://www.google.com/search?q=228.1+mm%5E3+%3D+%3F+mL&sugexp=chrome,mod=8&sourceid=chrome&ie=UTF-8

Answer 12

oh, thanks. I didn't know google had that lol

Answer 13

it's proven to be very effective