Calculate the mass of : 100 molecules of sucrose `(C_12H_22O_11)`

Calculate the mass of : 1 molecule of water

Calculate the mass of : 1 atom of C^14

Hydrolysis of sucrose (C_12H_22O_11) by invertase give :

Define 'osmosis' and 'osmotic pressure'. Show that osmotic pressure is a colligative property. A 4% solution of sucrose (C_12 H_22 O_11) is isotonic with 3% solution of an unknown organic substance. Calculate the molecular mass of the unknown substance.

Calculate the number of molecules in 11 gram of carbon dioxide

trianglen , the change in the number of mole for the reaction, C_12H_22O_11(s)+12O_2(g)rarr12CO_2(g)+11H_2O(l) at 25^@C is

Calculate the number of molecules in one cc of a perfect gas at 27^@C and at a pressure of 15 mm of mercury. Take mean KE of a molecule at 27^@C as 5xx10^(-11) J and density of mercury = 13600 kg/m^3 and g= 9.8 m/s^2 .