List of top Chemistry Questions on Molality and Molarity asked in TS EAMCET

Concentrated \(\mathrm{HNO_3}\) used in the laboratory is \(68\%\) by mass and its density is \(1.5\ \mathrm{g\,mL^{-1}}\). If \(x\) mL of this acid was taken into a 5 L standard flask and filled up to the mark with distilled water to prepare \(5\) L of \(0.5\ \mathrm{M}\ \mathrm{HNO_3}\) solution. What is the value of \(x\) in mL?

A water sample is contaminated with compound X (molar mass \(=120g~mol^{-1}\)). Its molality is \(10^{-4}m\). What is its concentration in ppm?

100 g of a mixture of $NaOH$ and $Na_{2}SO_{4}$ is neutralized by 100 ml of 0.5M $H_{2}SO_{4}$. What is the amount of $Na_{2}SO_{4}$ present in the mixture?}