A sample of phosphorous trichloride (PCl3) contains 1.4 moles of the substance. How many atoms are there is the sample?
What will be the volume of the mixture after the reaction?
(g)NH3 (1L) + (g) HCl (1.5L) → NH4Cl (s)
A compound has haemoglobin like structure. It has one Fe. It contain4.6% of Fe. The approximate molecular mass is
In Haber process, 30 litre of dihydrogen and 30 litres of dinitrogen were taken for reaction which yielded only 50% of the expected product. What will the composition of the gaseous mixture under the aforesaid condition in the end?
What volume of hydrogen gas at 273 K and 1 atm pressure will be consumed in obtaining 21.6 g elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen?
Which has maximum number of atoms?
The maximum number of molecules is present in
4 g of copper was dissolved in concentrated nitric acid. The copper nitrate on strong heating gave 5 g of its oxide. The equivalent weight of copper is
Number of atom of oxygen present in 10.6 g Na2CO3 will be
A gas mixture contains 50% helium and 50% methane by volume. What is the percent by weight of methane in the mixture?
116 mg of a compound on vaporisation in a victor Meyer’s apparatus displace 44.8 mL of air measured at STP. The molecular weight of the compound is