Question

5% HCL treatment is not necessary for glass​

Answer 1

Explanation:

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Answer 2

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.