Pour the remaining 1 ml of water in the graduated cylinder into the white beaker.Īmateur: Go F, F, F, L, F (173), R, L (121), L, R, R, L, R, R (005), L, and F to the vent on the floor. Pour the 4 ml water in graduated cylinder on to the 3 ml cylinder. Take the water (H2O) on the sink and pour some on the 4 ml graduated cylinder. Take this 2 ml acid and empty it on the white beaker. Pour the 3 ml again into the 4 ml cylinder leaving 2 ml in the 3 ml cylinder. Pour the 3 ml into the 4 ml graduated cylinder.įill the 3 ml cylinder HNO3 again.

Take Nitric acid (HNO3) and pour it on 3 ml graduated cylinder. Take this 2 ml acid and empty it on the white beaker.Įmpty the 4 ml cylinder into the Hazardous waste disposal at right.ĭo the same for the Nitric acid. Pour the 3 ml into the 4 ml graduated cylinder.įill the 3 ml cylinder HF again. Take Hydrofluoric acid (HF) and pour some on the 3 ml graduated cylinder. If an error is made, pour it in the Hazardous waste disposal at the right.Ģ parts of Hydrofluoric acid (HF) + 2 parts Nitric Acid (HNO3) + 1 part Water (H2O) for silicon base wafers. Take the mixture in the white beaker and pour it into one of the brown bottle on the top shelf at left to get formula. Pour the 4 ml water into the white beaker. Take the water (H2O) on the sink and pour some into the 4 ml graduated cylinder. Pour the remaining 1 ml of Nitric acid in the graduated cylinder into the white beaker. Pour the 4 ml Nitric acid in graduated cylinder on to the 3 ml cylinder. Take Nitric acid (HNO3) and pour some on the 4 ml graduated cylinder.

Take the poured acid and empty it on the white beaker. Press for Master: pink, blue, green, green, blue, pink, green, blue, pink.ģ parts of Hydrofluoric acid (HF) + 1 part Nitric Acid (HNO3) + 4 parts Water (H2O) for silicon base wafers.

Press for Amateur: blue, brown, brown, blue, brown, blue, blue.

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