Find the number of stereosiomers of 1,2 - dihydroxycyclopentane-

Find the number of terms if- 1+2+4+ ….=32767

Find the number whose 12 1/2% is 64.

Find the number whose 12(1)/(2)% is 64

Find the number of molecules in 1 millimole of CO_(2) .

Find the number of (1) atoms and (2) molecules present in 1 g of oxygen.

Let A={1,2,3} . Find the number of relations containing (1,2) and (1,3) which are eflexive and symmetric but not transitive

Find the number of ordered pairs of natural numbers (x, y) satisfying the equation: (xy-1)^(2) = (x+1)^(2) + (y+1)^(2)

Find 4 rational number between 1 and 2 .