Which of these samples contains the fewest atoms?
10 g of Au
10 g of Fe
10 g of Al
10 g of C
Related Questions
If you have 2 g of each of the following substances, which one would contain the highest number of atoms?
Helium
Neon
Argon
Krypton
Which sample contains the largest number of helium atoms?
0.1 mol of He
0.2 mol of He
0.1 mol of
0.1 mol of
If you have 8g of He, 4g of , and 32g of , which sample has the highest number of molecules?
He
Both He and
In which of the following is the number of water molecules maximum?
0.00224 L of water vapours at 1 atm and 273 K
0.18 g of water
18 ml of water
10⁻³ mol of water
Oxidation number of carbon in carbon suboxide is :
25.0 g of a calcium carbonate sample decomposes on heating to give carbon dioxide and 10.0 g calcium oxide. What will be the percentage purity of calcium carbonate in the sample? (Atomic weight: )
71.44
80
62.5
90.5
A mixture of g formic acid and g oxalic acid is treated with conc. . The evolved gaseous mixture is passed through pellets. Calculate the mass (in g) of the remaining product at STP.
0.56
1.43
2.24
3.15
1 mol of contains
atoms of H
4 g.atom of Hydrogen
molecules of
3.0 g of carbon
If 100 mL of a 17.0% solution is reacted with excess NaCl, what mass of AgCl will precipitate?
14.35 g
7.175 g
28.7 g
3.587 g
The apparatus in which standard solution is prepared is known as :
Measuring flask
Round bottom flask
Burette
None of these
