Related Questions
What is the mass percent of carbon in
Which of these samples contains the fewest atoms?
10 g of Au
10 g of Fe
10 g of Al
10 g of C
The number of molecules present in 1 mL of gas or vapour at STP is:
6.02 x 10²³
2.68 x 10¹⁹
1.68 x 10²²
22.4 x 10²⁰
A mixture of g formic acid and g oxalic acid is treated with conc. . The evolved gaseous mixture is passed through pellets. The weight (in g) of the remaining product at STP will be
1.1
2.8
3.2
4.4
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 ]
Which of the following contains the largest number of atoms?
1 g of
1 g of
1 g of
1 g of
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 of the following contains the largest number of water molecules?
100 g of water
18 g of ice
0.25 moles of water
100 ml of water vapor at STP
A gaseous mixture contains oxygen and nitrogen in the ratio of by weight. Therefore, the ratio of their number of molecules is:
1:4
7:32
32:7
4:1
13.5 g aluminium changes to in solution by losing :
electrons
electrons
electrons
electrons
