A mixture of CaCO3CaCO_3CaCO3 and MgCO3MgCO_3MgCO3 weighing 1.84 g on heating leaves a residue weighing 0.96 g. If the percentage by mass of CaCO3CaCO_3CaCO3 in the original mixture is x%, what is the value of x/2?
27.18
32.50
41.25
54.35
Related Questions
The number of molecules present in 1 mL of gas or vapour at STP is:
6.02 x 10²³
2.68 x 10¹⁹
1.68 x 10²²
22.4 x 10²⁰
7.5 gr of a gas occupy 5.8 L of volume at STP, the gas is
CO2
O2
Air (approximately)
H2
