Chemistry 5070/11 — October/November 2018
Cambridge O-Level · Multiple Choice · answer key with instant marking and worked solutions
Topics Atoms, Elements and Compounds · Organic Chemistry · Chemical Reactions · Metals · Experimental Techniques and Chemical Analysis · The Periodic Table · +6 more
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A student titrates aqueous sodium hydroxide from a burette with dilute hydrochloric acid in a conical flask.
After the titration is complete, the conical flask is emptied.
What is the correct procedure before the next titration?
Options
A Rinse out the conical flask with aqueous sodium hydroxide.
B Rinse out the conical flask with dilute hydrochloric acid.
C Rinse out the conical flask with distilled water.
D Use the conical flask again without rinsing.
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