Question: which apparatus would be used to measure 10cm3 of dilute hydrochloric acid?
Answer: Using a measuring cylinder, add 50 cm 3 of dilute sodium thiosulfate solution to a conical flask. Place the conical flask on a piece of paper with a black cross drawn on it. Using a different measuring cylinder, add 10 cm 3 of dilute hydrochloric acid to the conical flask.