Okay, supposedly I got this one wrong on a test:
0.0123 g = ___________ pg
(pg is picograms, which is 10^-12 grams).
I said it was 1.23 x 10^-10. Isn't my answer correct?
THANKS
2006-10-04 11:00:39 · 3 answers · asked by sarahg 3 in Education & Reference ➔ Homework Help
OK, yeah. So my answer was wrong?
What IS the right answer? (And how did you get it?)
2006-10-04 11:07:46 · update #1
No. Your decimal needs to go the other way.
If it's 0.0123 g, it's 12 decimal places to the right if going down in the scale.
1.23 x 10^10 pg
Now, take that value and look again at what pico means, it means go left 12 decimal places to get to gram.
2006-10-04 11:06:03 · answer #1 · answered by Mee 4 · 0⤊ 0⤋
0.0123 g ( 1 pg / 10^-12 g)=
1.23 x 10^10pg
Think logically.....there are 10^12 picograms for every gram
so the answer should be a pretty big number.
To make sure u never make mistakes while converting....write units into ur equations and cancel them out like what i did in my equation
i divided 0.0123 g by 10^ -12 g.....because g is in the numerator as well as the denominator, i can cancel them out and im left with pg.
2006-10-04 18:06:34 · answer #2 · answered by Mr.Moo 4 · 0⤊ 0⤋
i don't think so..i think you went backwards in your decimal places there for making your answer a larger quantity than it was supposed to be....i mean isn't pg a smaller amount than g
picogram, an SI unit of mass (10-12 gram)
Base Unit Kilogram
Multiple of Base 10-3 = g
2006-10-04 18:04:00 · answer #3 · answered by strwrs7772000 3 · 0⤊ 0⤋