List of top Chemistry Questions on Stoichiometry and Stoichiometric Calculations

The maximum number of molecules is present in

Calculate the concentration of $NaOH$ solution in g/ml. which has the same normality as that of a solution of $HCl$ of concentration $0.04 \,g/ml$

An aqueous solution of 6.3 g of oxalic acid dihydrate is made upto 250 mL. The volume of $ \text{0}\text{.1}\,\text{N}\,\text{NaOH} $ required to completely neutralize 10 mL of this solution is

What is the stoichiometric coefficient of $Ca$ in the reaction? $Ca + Al^{3+} \to Ca^{2+} + Al$

$ 4.6\times {{10}^{22}} $ atoms of an element weigh $13.8\,g$. The atomic weight of that element is

Which of the following has the smallest number of molecules?

Value of $x$ in potash alum, $K_2SO_4\cdot Al_x(SO_4)_3\cdot 24H_2O$ is

$ \text{C}{{\text{H}}_{\text{3}}}\text{COCl} $ does not react with:

The decomposition of a certain mass of $CaCO_3$ gave $11.2\, dm^3$ of $CO_2$ gas at $STP$. The mass of $KOH$ required to completely neutralise the gas is

4 g of hydrocarbon $ ({{C}_{x}}{{H}_{y}}) $ on complete combustion gave 12 g of $ \text{C}{{\text{O}}_{\text{2}}}\text{.} $ What is the empirical formula of the hydrocarbon? (C=12,H=1)

The oxygen obtained from $72\,kg$ of water is:

An organic compound having molecular mass 60 is found to contain C = 20%, H = 6.67% and N = 46.67% while rest is oxygen. On heating it gives $NH_3$ alongwith?? solid residue. The solid residue give violet colour with alkaline copper sulphate solution. The compound is :

What amount of water is added in $40\, mL$ of $NaOH (0.1\, N )$ which is neutralized by $50 \,mL$ of $HCl (0.2 N ) ?$

$1\, mol$ of $H _{2} SO _{4}$ is mixed with $2$ moles of $NaOH$. The heat evolved will be

$4\, g$ of copper was dissolved in concentrated nitric acid. The copper nitrate solution on strong heating gave $5\, g$ of its oxide. The equivalent weight of copper is :

The amount of $H_{2}S$ , required to precipitate $1.69\,g.\, BaS$ from $BaCl_{2}$ solution is:

Vapour density of a volatile substance is $4 \left( CH _{4}=1\right)$. Its molecular weight would ho.

In an organic compound of molar mass $108 g$ $mol ^{-1} C , H$ and $N$ atoms are present in 9: 1: 3.5 by weight. Molecular formula can be :

Vapour density of a metal chloride is 47.5. If the valency of metal is 2, the metal is:

For $14\, g$ of $CO$ the wrong statement is :

The molecular weight of $O_2$ and $SO_2$ are 32 and 64 respectively. At $15^{\circ}C$ and 150 mmHg pressure, 1L of $O_2$ contains -N - molecules. The number of molecules in 2L of $SO_2$ under the same conditions of temperature and pressure will be

How many moles are there in 18 grams of water ($ \text{H}_2\text{O} $)? (Atomic masses: H = 1, O = 16)

The mass of 60% HCl by mass required for the neutralisation of 10 L of 0.1 M NaOH is