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How many grams of the weak acid HF (molar mass = 20.01 g/mole) does it take to prepare 705 mL of a solution that has pH = 3.33?

Ka (HF) = 7.1 x 10-4

Please give the answer to 2 decimal places.

Hoeveel gram van die swak suur HF (molêre massa = 20.01 g/mol) neem dit om 705 mL oplossing met pH = 3.33 voor te berei? 

Ka (HF) = 7.1 x 10-4

Gee asseblief die antwoord tot 2 desimale plekke.

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