Some Basic Concepts of Chemistry

The mass of precipitate formed when 50 mL of $16.9 \%$ aqueous solution of $\mathrm{AgNO}_3$ is mixed with 50 mL of $5.8 \% \mathrm{NaCl}$ solution is-----------$[\mathrm{Ag}=107.8, \mathrm{~N}=14, \mathrm{O}=16, \mathrm{Na}=23, \mathrm{Cl}...

500 mL of an aqueous solution of glucose $\mathrm{C}_6 \mathrm{H}_{12} \mathrm{O}_6$ (Molar mass $180 \mathrm{gmol}^{-1}$ ) contains $6.02 \times 10^{22}$ molecules.
The concentration of the solution will be:

How many molecules of $\mathrm{CO}_2(\mathrm{~g})$ are obtained on reaction of 24 grams of methane with 4 moles of oxygen?

If X is a haloalkane with a single Chlorine atom per molecule and the percentage of Cl is 55 , what would be the number of Cl atoms present in 0.1 g of the haloalkane?
Atomic mass of $\mathrm{Cl}=35.5 \mathrm{~g} / \mathrm{mol}$

The mole fraction of an unknown solute in 1560 g of Benzene is 0.5 . What is the molality of the solution? (M. M of Benzene:78 amu)

A given mass of a hydrocarbon on complete combustion produced \(176 \mathrm{~g}\) of \(\mathrm{CO}_2\) and \(90 \mathrm{~g}\) of \(\mathrm{H}_2 \mathrm{O}\). What is the Molecular formula of the compound?

What mass of Silver chloride, in grams, gets precipitated when \(150 \mathrm{~ml}\) of \(32 \%\) solution of Silver nitrate is reacted with \(150 \mathrm{ml}\) of \(11 \%\) Sodium chloride solution? Atomic mass in $$\mathrm{g} / \mathrm{mol...

Sulphuric acid used in Lead Storage battery has a concentration of \(4.5 \mathrm{~M}\) and a density of \(1.28 \mathrm{~g} / \mathrm{~ml}\). The molality of the acid is __________.

When 1 mole of \(\mathrm{O}_2\) and 1 mole of ammonia are made to react in the reaction,
\(4 \mathrm{NH}_3(\mathrm{~g})+5 \mathrm{O}_2(\mathrm{~g}) \rightarrow 4 \mathrm{NO}(\mathrm{g})+6 \mathrm{H}_2 \mathrm{O}(\mathrm{g})\)

\(\mathrm{Mg}(\mathrm{OH})_2\) is used as an antacid. If a person, suffering from acidity, produces \(2.5 \mathrm{~L}\) of Gastric juice in a day, approximately how many antacid tablets, each containing \(600 \mathrm{~mg}\) of $$\mathrm{Mg}...

\(15 \mathrm{~g}\) of \(\mathrm{CaCO}_3\) completely reacts with

What would be the molarity of one litre solution of 22.2 g of CaCl\(_2\) ?

The mass of a metal, with equivalent mass 31.75, which would combine with 8 g of oxygen is

Molarity of a given orthophosphoric acid
solution is 3M. It’s normality is

Which one of the following has maximum
number of atoms of oxygen?

The number of gram molecules of chlorine in \(6.02\times10^{25}\) hydrogen chloride molecules is