Question

A zeolite softener is 80% exhausted when 5000L of hard water was passed through it. The softener required 20 L of NaCl solution of strength 150 g/L of solution. Calculate the hardness of water sample.

Answer 1

Answer:

Language arts is the study and improvement of the arts of language. Traditionally, the primary divisions in language arts are literature and language, where language in this case refers to both linguistics, and specific languages. Wikipedia

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Answer 2

Explanation:

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