Question

Solution

Correct option is

15 L of H2 gas S.T.P.        = SIMILAR QUESTIONS

Q1

How many moles of electrons weight one kilogram?

Q2

Number of atoms in 558.6 g Fe (molar mass Fe = 55.86 g mol–1)is

Q3

3 g of an oxide of a metal is converted to chloride completely and it yielded 5 g of chloride. The equivalent weight of the metal is

Q4

What will be the volume of the mixture after the reaction?

(g)NH3 (1L) + (g) HCl (1.5L) → NH4Cl (s)

Q5

A compound has haemoglobin like structure. It has one Fe. It contain4.6% of Fe. The approximate molecular mass is

Q6

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?

Q7

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?

Q8

Which has maximum number of atoms?

Q9

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

Q10

Number of atom of oxygen present in 10.6 g Na2CO3 will be