Concentration

Define dissolution.

Write the spectator ions of the given chemial reaction.

$2{{\mathrm{Na}}^{+}}_{\left(\mathrm{aq}\right)} +{{{\mathrm{CO}}_3}^{2-}}_{\left(\mathrm{aq}\right)} +{{\mathrm{Cu}}^{2+}}_{\left(\mathrm{aq}\right)} + {{{\mathrm{SO}}_4}^{2-}}_{\left(\mathrm{aq}\right)} \to {\mathrm{CuCO}}_3 +2{{\mathrm{Na}}^{+}}_{\left(\mathrm{aq}\right)} +{{{\mathrm{SO}}_4}^{2-}}_{\left(\mathrm{aq}\right)}$

Define spectator ions.

Dissolution of copper sulphate in water is a chemical process.

Write about the dissolution of copper sulphate crystals.

What do you mean by dilute solution?

The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is $1:4$. The ratio of the number of their moles is

$8 \mathrm{g}$ of ${\mathrm{O}}_2$ has the same number of moles as

Which has the maximum number of moles among the following?

$25.3 \mathrm{g}$ of sodium carbonate, $\left({\mathrm{Na}}_2{\mathrm{CO}}_3\right)$ is dissolved in enough water to make $250 {\mathrm{cm}}^3$ of solution. If the sodium carbonate dissociates completely, molar concentration of sodium ions, ${\mathrm{Na}}^{+}$ and carbonates ions, ${{\mathrm{CO}}_3}^{2-}$ are respectively (Molar mass of ${\mathrm{Na}}_2{\mathrm{CO}}_3=106 \mathrm{g} {\mathrm{mol}}^{-1}$).

What is the density of $3.60 \mathrm{mol} {\mathrm{dm}}^{-3}$ sulphuric acid, which is $29\% {\mathrm{H}}_2{\mathrm{SO}}_4$ by mass in $\mathrm{g} {\mathrm{cm}}^{-3}$?