How many moles are present in 18g of water (H2O)?
1 mol
0.5 mol
2 mol
18 mol
Related Questions
1 mol of contains
atoms of H
4 g.atom of Hydrogen
molecules of
3.0 g of carbon
Which of the following contains the greatest number of atoms?
1 g of Li
1 g of Ag
1 g of Mg
1 g of O2
Which of these samples contains the fewest atoms?
10 g of Au
10 g of Fe
10 g of Al
10 g of C
Which one of the followings has maximum number of atoms ?
of [ Atomic mass of ]
of [ Atomic mass of ]
of [ Atomic mass of ]
of [ Atomic mass of ]
atoms of an element weights 1.15 g. The atomic mass of the element is
46.0 u
23.0 u
11.5 u
92.0 u
Which of the following has the largest number of atoms?
0.5 g of Li
0.5 g of Na
0.5 g of K
0.5 g of Rb
Which one of the followings has maximum number of atoms ?
of [ Atomic mass of ]
of [ Atomic mass of ]
of [ Atomic mass of ]
of [ Atomic mass of ]
Rank the following samples from least to greatest number of atoms:
I. 5 g of
II. 5 g of
III. 5 g of
IV. 5 g of
I < II < III < IV
IV < III < II < I
IV < II < III < I
I < III < II < IV
The number of Na atoms in 46 g βNaβ
6.023{\mkern 1mu} {\mkern 1mu} imes {\mkern 1mu} {\mkern 1mu} {10^{23}}
2
1
12.046{\mkern 1mu} {\mkern 1mu} imes {\mkern 1mu} {\mkern 1mu} {10^{23}}
13.5 g aluminium changes to in solution by losing :
electrons
electrons
electrons
electrons
