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?.

What is the basicity of H_(3)PO_(2) acid and why?

CS_2 is a colourless, highly inflammable liquid used in the manufacture of rayon and cellophane. A sample contains 0.0205 mol CS_2 . Calculate the mass of CS_2 in the sample.

A sample of AlF_3 contains 3.0 xx 10^24 F^(-) ions. The number of formula units of this sample is :

Calculate the molar mass of Nitric acid , HNO_(3)

A sample of phosphorus trichloride (PCl_3) contains 1.4 moles of the substance. How many atoms are there in the sample ?

Why is boric acid ( H_(3) BO_(3)) a monobasic acid ?

Exactly 20.0 cm^(3) of nitric acid neutralized 28.4 cm^(3) of 0.25 M NaOH. What is the molarity of the acid?

Igniting MnO_(2) in air converts it quantitatively to Mn_(3)O_(4) . A sample of pyrolusite is of the following composition: MnO_(2) = 80% , SiO_(2) and other inert constituents = 15%, and rest bearing H_(2) O . The sample is ignited to constant weight. What is the percent of Mn in the ingnited sample?