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Nancy Drew 27: The Deadly Device Hints

Mixing Chemicals, Amateur

  • The formula is 3 units HF, 1 unit HNO3, and 4 units H2O.

    -- Pick up the HF bottle and click it on the 3-unit flask; empty it into the beaker.
    -- Pick up the HNO3 bottle and click it on the 4-unit flask. Pick up the flask and click it on the 3-unit flask. Pour the one unit remaining in the larger flask into the beaker.
    -- Pick up the H2O pitcher and click it on the 4-unit flask; empty it into the beaker.

    Pick up the beaker and click it on the brown bottles at the left. The filled bottle goes into your inventory.