The mass of but-1,3-diene which contains 1 mole of double bonds is
a) 54 g b) 27 g c) 108 g d) 9 g

Calculate Delta G (in joule) for the reaction 2A(g) to B(g)+C(g) when mixture contains 1 mole of A, 2 moles of B and 1 mole of C at total pressure of 10 atm and 300 K. [Given : G_(m)^(@),A(g)=40 "kJ mol"^(-1) , G_(m)^(@),B(g)=60 "kJ mol"^(-1) , G_(m)^(@),C(g)=20 "kJ mol"^(-1) , R=8.3 JK^(-1)mol^(-1) and "In " 2=0.7 ]

K_(c) for the reaction A_((g)) + B_((g)) harr C_((g)) + D_((g)) ,is "20" at 25^(@)"C .If a container contains "1,2,4,5" moles per litre of A_((g)) , B_((g)) , C_((g)) and D_((g)) respectively at 25^(@)C ,then the reaction shall

Calculate the total pressure in a 10.0 L cylinder which contains 0.4 g helium, 1.6 g oxygen and 1.4 g nitrogen at 27°C.

The mass of AgCl precipitated when a solution containing 11.70 g of NaCl is added to a solution containing 3.4 g of AgNO_3 is [Atomic mass of Ag = 108, Atomic mass of Na = 23]

The G.C.D. of 1.08, 0.36 and 0.9 is (a) 0.03 (b) 0.9 (c) 0.18 (d) 0.108

Fil in the blanks a. The mass of 1 molecule of water (H_(2) O) is ……… b. The number of molecules in 16 g of sulphur dioxide (SO_(2)) are ………. c. The weight of one mole of sodium carbonate (Na_(2) CO_(3)) is…………….. d. Moles and g equivalent in 196 g of Ca (OH)_(2) are ...... and ....... e. Moles and g equivalent in 196 g of H_(3) PO_(4) are ............. and ............ f. g atoms in 62 g of P_(4) are ....... f. g atoms in 24 g of magnesium are...........