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Boric acid, H3 BO3 is a mild antiseptic ...

Boric acid, `H_3 BO_3` is a mild antiseptic and is often used as an eye wash. A sample contains 0.543 mol `H_3 BO_3`. What is the mass of boric acid in the sample?.

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Verified by Experts

Molecular mass of `H_(3)BO_(3)=(1xx3)+(Hxx1)+(16xx3)`
= 62
Boric acid sample contains 0.543 mole.
Mass of 0.543 mole of Boric acid = Molecular mass `xx` mole
= `62xx0.543` = 33.66 g
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