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
If 1 mole of a substance contains particles, how many particles are present in 0.5 moles?
1.505 x 10^23
3.011 x 10^23
6.022 x 10^23
12.044 x 10^23
One mole of contains:
None of the above
Suppose the Avogadro constant was . How many atoms would be present in 0.5 moles of helium?
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}}
Volume occupied by molecules of acetylene at NTP is:
1 mol of contains
atoms of H
4 g.atom of Hydrogen
molecules of
3.0 g of carbon
Which has more molecules: 1 mole of glucose or 18 grams of water?
1 mole of glucose
18 grams of water
Both have the same number of molecules.
Cannot be determined without more information.
The Largest number of molecules is in
36 g of water
28 g of carbon monoxide
46 g of ethyl alcohol
54 g of Nitrogen pentoxide
If Avogadro's number were redefined as , which of the following would be directly affected?
The mass of one molecule of oxygen
The ratio of the mass of an oxygen molecule to the mass of an oxygen atom
The mass of one mole of oxygen
The definition of 1 mole
