Question

Help with another significant figure problem please?
Thanks. ^.^

Answer 1

0.0058 km * 0.228 km

Answer 2

The zeros are confusing me v.v

Answer 3

OMG THAT NOOB IS DOING IT AGAIN

Answer 4

Yeah...

Answer 5

>.<

Answer 6

So how many sig figs does 0.0058 have?

Answer 7

2?

Answer 8

yup so your final answer will have how many?

Answer 9

2?

Answer 10

@ganeshie8

Answer 11

yes, just multiply and round

Answer 12

When I multiply, I get
0.0013224

Answer 13

1.3x10^-3 keeping two s.g's from the lowest sg number

Answer 14

K103 and iambatman are right!

Answer 15

White, are you in AP Chem or Chem honors now?

Answer 16

I am in a Physics/Chemistry class.

Answer 17

you get the right answer but just needed to express differently ;)

Answer 18

Yaah. Makes sense. Here is the rule. When you multiply two things, look at the sig figs of the two and the final answer will have what ever is the lesser of the sig figs. And zeros after the decimal and before the number are NOT sig. Like .0028 is only 2 sig figs, 2 and 8. When you add things, line up the decimals, and the answer will have the least number of decimal places.

Answer 19

Ohhhh, makes sense!! Thanks Preetha! ^.^

Answer 20

So even any zeros before the decimal are not sig figs, such as in 0.0034?

Answer 21

@kl0723, where are you getting the 10^(-3) from?

Answer 22

Is it 1.32 km ?

Answer 23

ok, you got 0.0013224 and that is correct but since you need to express in two sig. figures ... you need to use scientific notation and move the point three places to the right giving you 1.3x10^-3...

Answer 24

\[1.3\times 10^{-3} km\]

Answer 25

Where are you getting the 10^-3?

Answer 26

thanks iambatman, went ahead of me :)