One mole of $H_{2}O$ corresponds to

Q.

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 $\times {10}^{23}$ dioxygen molecules (d) 11.2 L of gas

Q.

One mole of oxygen gas at STP is equal to...........

(a) $6.022\times {10}^{23}$ molecules of oxygen

(b) $6.022\times {10}^{23}$ atoms of oxygen

(c) 16 g of oxygen

(d) 32 g of oxygen

Q. 12 g C-12 contains $6.022\times {10}^{23}$ atoms of carbon.
(a) $6.022\times {10}^{23}$ is known as .............
(b) Calculate the number of carbon atoms present in 48 g C-12.
(c) Which weighs more, $6.022\times {10}^{23}$ molecules of $C{O}_2$ or $6.022\times {10}^{23}$ molecules of $H_{2}O$?

Q.

One mole of any substance contains $6.022\times {10}^{23}$ atoms/molecules. Number of molecules of $H_{2}S{O}_4$ present in 100 mL of $0.02M{H}_{2}S{O}_4$ solution is.............

(a) $12.044\times {10}^{20}$ molecules (b) $6.022\times {10}^{23}$ molecules

(c) $1\times {10}^{23}$ molecules (d) $12.044\times {10}^{23}$ molecules

Q. One mole of oxygen corresponds to $6.023\times {10}^{23}$ oxygen atoms.