0.00326 kg
Explanation
you can easily solve this by using a rule of three.
remember
[tex]1\text{ Kilogram}\rightarrow1000\text{ grams}[/tex]Step 1
let x represents the total of kilograms in 3.26 grams
if
[tex]1000\text{ grams}\rightarrow1\text{ Kilogram}[/tex]then
[tex]3.26\text{ grams}\rightarrow x\text{ Kilogram}[/tex]the proportion is
[tex]\begin{gathered} \frac{1000\text{ gr}}{1\text{ kg}}=\frac{3.26}{x} \\ \end{gathered}[/tex]Step 2
solve for x
[tex]\begin{gathered} \frac{1000\text{ gr}}{1\text{ kg}}=\frac{3.26}{x} \\ 1000x=3.26\cdot1 \\ 1000x=3.26 \\ \text{divide both sides by 1000} \\ \frac{1000x}{1000}=\frac{3.26}{100} \\ x=0.00326\text{ kg} \end{gathered}[/tex]so, the answer is 0.00326 kg
as you can see, to convert from grams to kilograms you have to divide by 1000
I hope this helps you