A compound contains 28% nitrogen and 72% of a metal by weight. Three atoms of metal combine with two atoms of nitrogen. If the atomic weight of nitrogen is 14, the atomic weight of the metal is:
12
24
36
48
Related Questions
How many moles are present in 18g of water (H2O)?
1 mol
0.5 mol
2 mol
18 mol
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
If 10 moles of ammonia are produced via the Haber-Bosch process, how many moles of hydrogen gas were consumed?
5
10
15
20
A mixture of and gases contains 0.44 g of and 0.56 g of . The total number of moles of gases in the mixture is:
0.01 moles
0.02 moles
0.03 moles
0.04 moles
Oxygen and the oxide ion have the
Same proton number
Same electronic configuration
Same electron number
Same size
How many moles of water are present in 22.4 L of water vapor at Standard Temperature and Pressure (STP)?
1
0.5
2
4
The apparatus in which standard solution is prepared is known as :
Measuring flask
Round bottom flask
Burette
None of these
The number of atoms in 0.1 mole of a triatomic gas is:
Suppose the Avogadro constant was . How many atoms would be present in 0.5 moles of helium?
What is the mass of 0.2 moles of oxygen atoms?
1.6 g
3.2 g
6.4 g
16 g
