Pick out the correct statements from the following. Also correct the incorrect state-ments: 0.5 mol water has the mass 9g. There are `6.022xx10^(23) H_2O` molecules in it. (Atomic mass H=1,O=16,CI=35.5, N=14)

Pick out the correct statements from the following. Also correct the incorrect state-ments: The mass of 1/2 mol nitrogen gas is 14 g.

Pick out the correct statements from the following. Also correct the incorrect statements: 2 mol chlorine contain 4xx6.022xx10^(23) chlorine molcules.

Pick out the correct statements from the following. Also correct the incorrect state-ments: The number of molecules present in 1 mol hydrogen and 1 mol oxygen are same.

Pick out the correct statements from the following. Also correct the incorrect statements. a) The number of molecules present in 1 mol hydrogen and 1 mol oxygen are same. b) 1 mole chlorine contain 4 xx 6.022 xx10^23 chlorine molecules. c) The mass of 1/2 mol nitrogengas is 14g. d) 0.5 mol water has the mass of 9g. There are 6.022 xx 10^23 H_2 O molecules in it. (Atomic mass H= 1.0= 16, Cl 35.5, N = 14).

The molecular mass of methane (CH_4) is 16: What is the mass of 5xx6.022xx10^(23) CH_4 molecules?

Calculate the number of molecules In 90g of water. (Hint -Atomic mass H=1, 0=16)

Choose the incorrect statement from the following. a) 1 mole Hydrogen atom contains 6.022xx10^23 atoms. b) 1 mole oxygen gas contains 2xx6.022xx10^23 atoms. c) Mass of 1 mole of chlorine is 35.5 g. d) Mass of 0.5 mole of water is 18g. e) 1 mole of nitrogen gas contains 22.4L volume at any state. (Hint: Atomic mass H-1, 0-16, 1-35.5,N=14)

Complete the following table. (All the elements given are diatomic. Atomic mass O=16, N=14, CI=35.5)

Arrange the following in the increasing order of their mass. 1 g of Ca, 12 amu of C, 6.022*10^23 molecules of CO_2 , 11.2 L of N_2 at STP.