Mixture of two bivalent metals A and B having mass 2g when dissolved in HCl at STP, 2.24 . `H_(2)` is evolved. What is the mass of A persent in mixture (Atomic mass of `A=15u,B=30u`)-

Mixture of two metals having mass 2 gm (A = 15, B = 30) and are bivalent and dissolve in HCl and evolve 2.24 L H_(2) at STP . What is mass of A present in mixture ?

What is the molecular mass of HNO_3 . ( Atomic masses, H=1u,N=14u,0=16u)

What is the mass of 0.5 mole of wate (H_(2)O) . (Atomic masses : H = 1 u, O = 16 u )

A mineral consists of an equimolar mixture of the carbonates of two bivalent metals. One metal is present to the extent of 12.5% by mass.2.8 g of the mineral on heating loat 1.32g of CO_(2) . What is the % by mass of the other metal ?

A mineral consists of an equimolar mixture of the carbonates of two bivalent metals. One metal is present to the extent of 12.5% by mass.2.8 g of the mineral on heating loat 1.32 of CO_(2) . What is the % by mass of the other metal ?

A mixture of MgO and Mg weighing 10 g is treated with excess of dil HCl . Then 2.24 lit of H_(2) gas was liberated under STP conditions . The mass of MgO present in the sample is

A mineral consists of an equimolar mixture of the carbonates of two bivalent metals. One metal is present to the extent of 12.5% by mass 2.8g of the mineral on heating lost 1.32g of CO_2 . What is the % by mass of the other metal ?