If 32 g of O2 contains 6.022 ×1023 molecules at NTP then 32 g of S, under the same conditions, will contain,
6.022 x 1023 S
3.011 x 1023 S
12.044 x 1023 S
1 x 1023 S
ns =3232 =1
One mole of any substance contains 6.022×1023 atoms/molecules. Number of molecules of H2SO4 present in 100 mL of 0.02MH2SO4 solution is.............
(a) 12.044×1020 molecules (b) 6.022×1023 molecules
(c) 1×1023 molecules (d) 12.044×1023 molecules
One mole of oxygen gas at STP is equal to...........
(a) 6.022×1023 molecules of oxygen
(b) 6.022×1023 atoms of oxygen
(c) 16 g of oxygen
(d) 32 g of oxygen
How many molecules are present in 9g of water?