Calculate the concentration of nitric acid in molarity in a sample which has a density, 1.41g/ml and contain 49% by mass of nitric acid

Given reasons: concentrated nitric acid renders aluminium passive.

Calculate the molarity of a solution containing 1g of NaOH in 250 mL of water.

Concentrated nitric acid turns yellow on exposure to sunlight, why?

Calculate the molar mass of the following substances. Hydrochloic acid, HCl

Concentrated nitric acid used in laboratory work is 68% nitric acid by mass in aqueous solution. What should be the molarity of such a sample of the acid if the density of the solution is 1.504 g mL^-1 ?

Determine the Empirical formulae of an oxide of iron which has 69.9% iron and 30.1% dioxygen by mass.

A sample of concentrated sulphuric acid used in the laboratory is 98% by mass in aqueous solution. If the density of the solution is 1.835 g mL^-1 . Calculate the molarity of the sulphuric acid sample.

Calculate the molar mass of the following substances. Nitric acid, HNO_3

Calculate the mass of a non-volatile solute of molar mass 40 which should be dissolved in 114g octane to reduce its vapour pressure to 60%

Calculate the mass of a non-volatile solute of molar mass 40gmol^(-1) which when disolved in 114g octane to reduce it vapour presure to 80%.