One mole of H2O corresponds to
22.4 L at 1 atm
1 g
18 g
6.022 *1023 atoms of hydrogen and oxygen.
Molecular weight of H2O = 1(2) + 16= 18g
Therefore, one mole of H2O corresponds to 18 g.
Which of the following figures does not represent 1 mole of dioxygen gas at STP?
(a) 16 g of gas (b) 22.4 L of gas
(c) 6.022 ×1023 dioxygen molecules (d) 11.2 L of gas
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
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
Question 9 3.42 g of sucrose are dissolved in 18g of water in a beaker. The number of oxygen atoms in the solution are (a) 6.68×1023 (b) 6.09×1022 (c) 6.022×1023 (d) 6.022×1021