Question

How many µl are there in 0,75ml?

a) 750
b) 75
c) 7.5
d)7500

Can anyone explain?

Answer 1

Do you know what the µ stands for in µl ?

Answer 2

yeah, it is micro, which means \[1000^{-2}*1000=1000\] ml?

Answer 3

ok, µ means micro, and micro means 1 millionth, 1 µl is
\[ \frac{ 1 \text{ liter}}{1000000} \]
it is tough to count the zeros, so people write it as
\[ \frac{ 1 \text{ liter}}{10^6} \]
or, "moving" the 10^6 up top (and changing the 6 to -6)
1 µl= \(10^{-6} \) liters

Answer 4

do you know m in ml stands for milli (one thousandth)
\[ 1 ml= \frac{1 \text{ liter }}{1000} = 10^{-3} \text{ liters} \]

Answer 5

oh,yeah. So now I need to convert 0,75ml into µl?

Answer 6

to solve, multiply
0,75ml by the number of µl in 1 ml (1000 or 10^3)

Answer 7

750, right!?

Answer 8

yes

Answer 9

THANKS! are you good at biochemistry, maybe? i desperately need help and none can help me with one question...