Question

Why should acetone not be used to rinse quartz uv cells?

Answer 1

Explanation:

The coordinates of Vertices A , B , C of a triangle ABC are (0 , -2) , (4 , 1) and (0 , 4) respectively. Find the length of median through B.

(a) 4

(b) 5

(c) 6

(d) None of these

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Answer 2

The Use of Acetone should be avoided to ensure accuracy.

Explanation:

• Acetone should not be used to rinse quartz, UV cells because if the traces of acetone remains there in the cuvette it will affect the readings of the experiments.
• In order to avoid inaccuracy, the cuvette should be first washed with the acid, then acetone followed by distilled water, and at last rinse with the solution that is to be analyzed.
• Finally, it should be air-dried for getting proper results.
• Acetone not be used to rinse quartz UV cells to avoid accuracy in reading and maintaining proper results.