Embibe Experts Solutions for Chapter: Stoichiometry (Mole Concept), Exercise 1: AP EAPCET Medical 2021 (6-Sep Afternoon)

Calculate the number of sulphate ions present in $100 \mathrm{ml}$ of $0.001 \mathrm{M} {\mathrm{H}}_2{\mathrm{SO}}_4?$

Calculate the percentage by weight of oxygen in a mole of water?

In a non-stoichiometric sample of cuprous sulphide, with the composition ${\mathrm{Cu}}_{1.8}\mathrm{S},$ cupric ions are also present in the lattice. What mole percent of ${\mathrm{Cu}}^{2+}$ is present in the copper content of the crystal?

Calculate the concentration of the $2\%(\mathrm{w}/\mathrm{w})\mathrm{NaCl}$ solution in terms of molality.

$6.0$ litres of a gaseous mixture containing propane and butane on complete combustion at $25°\mathrm{C}$ produced $20$ litres of ${\mathrm{CO}}_2.$. Then the composition of the given mixture is __________

$50 \mathrm{mL}$ of $0.2 \mathrm{N} \mathrm{HCl}$ is titrated against $0.1 \mathrm{N} \mathrm{NaOH}$ solution. The titration is discontinued after adding $50 \mathrm{mL}$ of $\mathrm{NaOH}$ solution. The remaining titration is completed by adding $0.5 \mathrm{N} \mathrm{KOH}$ solution. What is the volume of $\mathrm{KOH}$ solution required for completing the titration ?