u/Different_End_7464

Small dark insect, 3-4 mm in length
6 legs, 2 antennas
Side profile seems rather high compared to thin profile from the top
Has a small body in front and a bigger one on the back
Walks and jumps short distance 10 cm or so (or flies but wasn’t able to detect wings)
Was pretty dark brown or even black
Wasn’t easy to catch and sedate this one in the freezer, came back to life after a short while and catching it again ended in his death. Showed red blood while it died.
Location: Germany

excuse the awful handwriting

this is ocr a level chemistry paper 1 2022 and it’s question 21bi

I wrote down what the mark scheme said and I understood it until the underlined part. Why do I have to divide 0.0329 by 2?