Mixtures and Alligation

How much water must be added in $900\ ml$ of $0.1\ M\ CH_{3}COOH$ solution to triple its degree of dissociation (Assume $\alpha < 5\%$ is negligible ) : ($K_{a}=1.8 \times 10^{-5}$)

The total weight of the gas mixture which contains $11.2$ litres of carbon dioxide, $5.6$ litres of oxygen, $22.4$ lit of Nitrogen, $44.8$$ l of helium at zero degree Celsius and $760$ mm of Mercury pressure is

250 ml of a solution contains 6.3 grams of oxalic acid(mol. wt. =126). What is the volume (in litres) of water to be added to this solution to make it a 0.1 N solution?

A mixture of ideal gasses $N_{2}$ and $He$ are taken in the mass ratio of $14 : 1$ respectively. Molar heat capacity of the mixture at constant pressure is.

$125\ ml$ of gas A at $0.06$ atmosphere and $150 ml$ of gas B at $0.8$ atmosphere pressure at the same temperature is filled in the vessel of 1-litre. What will be the total pressure of the mixture at the same temperature?

Same volume of hydrogen and oxygen at the same temperature and pressure are mixed together so that the volume of the mixture is same as the initial volume of the either gas If the initial pressure be $p$, then the pressure of the mixture will be:

A mixture contains milk and water in the ratio of $4 : 3$ respectively. If $6$ L of water is added to this mixture the respective ratio of milk and water becomes $8 : 7$. What is the quantity of milk in the original mixture?

How many liters of a solution that is 15 percent salt must be added to 5 liters of a solution that is 8 percent salt so that the resulting solution is 10 percent salt?

A bowl is half full of water. Four cups of water are then added to the bowl, filling the bowl to 70% of its capacity. How many cups of water are now in the bowl?

Alexandra needs to mix cleaning solution in the ratio of 1 part bleach for every 4 parts water. When mixing the solution, Alexandra makes a mistake and mixes in half as much bleach as she ought to have. The total solution consists of 27 mL. How much bleach did Alexandra put into the solution?

Jackie has two solutions that are $2$ percent sulphuric acid and $12$ percent sulphuric acid by volume respectively. If these solutions are mixed in appropriate quantities to produce $60$ litres of a solution that is $5$ percent sulphuric acid, approximately how many litres of the $2$ percent solution will be required?

$85$ L of a mixture contains milk and water in the ratio $ 27: 7$ How much more water is to be added to get a new mixture containing milk and water in the ratio $ 3:1 $?

The vapour density of a mixture containing ${\rm{N}}{{\rm{O}}^2}\,\,{\rm{and}}\,\,{N_2}{O_4}\,\,{\rm{is}}\,\,30.$ The mole function of ${N_2}{O_4}$ in mixture is $\underline {\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,} $

A gas mixture contains $24\%$ nitrogen, $32\%$ oxygen and remaining is hydrogen by volumes at a given temperature and pressure then what is the mole fraction of hydrogen? (assume there is no reaction between the gases)