Question

unit conversions tutor
unit conversion tutorial
look at how the two units in the starting value are arranged. start with the unit on top, then do the one on the bottom. long - distance unit cancelling is fine.
1 g = 100 cg 1 l = 1,000 ml
how many g/ml are in 12 cg/l?
= g/ml

Explanation:

Step1: Convert centigrams to grams

We know that $1\ g = 100\ cg$, so $12\ cg=\frac{12}{100}g = 0.12g$.

Step2: Convert liters to milliliters

We know that $1\ L=1000\ mL$.

Step3: Calculate the ratio in g/mL

The original quantity is $\frac{12\ cg}{1\ L}$, substituting the converted - values, we get $\frac{0.12\ g}{1000\ mL}=1.2\times10^{-4}\ g/mL$.

Answer:

$1.2\times 10^{-4}$