Question

5./. HCL treatment is not necessary for glass
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Answer 1

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Answer 2

Answer:

30% HCL treatment is necessary for glass

Explanation:

Hydrochloric acid are used to clean glass .

It does this by mildly etching the surface of the glass.

Prepare the HCl bath during a polypropylene container by the subsequent recipe:

                  200ml of distilled water and 100ml HCL (add to water)

Pour the water into the container then add the acid.Be sure to label the container with the title"30% HCl solution".

Put the glass substrates into bath to soak for half-hour.For extra clean surfaces,soak for twenty-four hours.

Rinse in water then blow dry.

If the acid solution is clean and that we shall use it again,store it in an appropriately .

If not pour the acidic solution into the acid waste container.

Therefore,30% HCL treatment is necessary for glass.

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