Some Basic Concepts of Chemistry Quiz-4

One litre of N/2 HCl solution was heated in a beaker. When volume was reduced to 600 mL, 3.25 g of HCl was given out. The new normality of solution is :

The hydrated salt $Na_2SO_4.nH_2O$, undergoes 55% loss in weight on heating and becomes anhydrous. The value of n will be :

The total ionic strength (total molarity of all ions) of a solution which is 0.1M of $CuSO_4$ and 0.1M of $Al_2(SO_4)_3$ is :

The isotopic abundance of C-12 and C-14 is 98% and 2% respectively. What would be the number of C-14 atoms in 12g carbon sample :

500 mL of $NH_3$ contains $6.00 \times 10^{23}$ molecules at N.T.P. How many molecules are present in 100 mL of $CO_2$ at N.T.P.?

What will be the volume of the mixture after the reaction? $NH_3(g,1L) + HCl (g,1.5L)\longrightarrow NH_4Cl(s)$

What volume of hydrogen gas at 273K and 1atm pressure will be consumed in obtaining 21.6g of elemental boron (atomic mass = 10.8g) from the reduction of boron trichloride by hydrogen

The number of water molecules present in a drop of water (volume 0.0018 mL) at room temperature is :

7.5 grams of gas occupy 5.6 litres of volume at NTP. The gas is :

For the formation of 3.65g of hydrogen chloride gas, what volumes of hydrogen gas and chlorine gas are required at N.T.P. conditions?