Answer:
0.2374 L
Explanation:
Formula for number of moles is;
Number of moles = mass/molar mass
molar mass of KNO3 = 101.1 g/mol
Thus;
n = 60/101.1
n = 0.5935
Formula for molarity is;
M = n/V
2.5 = 0.5935/V
V = 0.5935/2.5
V = 0.2374 L
Answer:
ClAl
Explanation:
* = electron
Cl (17) * * * * * * *
Al (13) * * *
If one of aluminum's electrons were added to chlorine to make a full shell, still have 2 left over. So you need another:
Cl * * * * * * * * (full)
Cl * * * * * * *
Al * *
Still have another left over. Aluminum needs to lose another one of its valence electrons to be able to have a full shell. So you take another chlorine:
Cl * * * * * * * * (full)
Cl * * * * * * * * (full)
Cl * * * * * * *
Al *
You will eventuate with 3Cl and 1Al, or ClAl. Modeled above: