find molecular mass of the following compounds
1. NaCl
Answers
Answer:
Sodium chloride, also known as table salt, is an ionic compound composed of sodium cations,
Na
+
, and chloride anions,
Cl
−
that has the formula unit
NaCl
.
The molar mass of an anionic compound tells you what the mass of one mole of formula units of that respective compound is.
You know that sodium chloride's formula unit contains
one sodium atom
one chlorine atom
This means that sodium chloride's molar mass will be the sum of the molar masses of those two atoms.
M
M NaCl
=
M
MNaCl
+
M
M Cl
A quick look in the periodic table and you'll see that the molar masses of sodium and chlorine, respectively, are
Na
→
22.989770 g/mol
Cl
→
35.453 g/mol
Therefore, the molar mass of sodium chloride will be
M
M
=
22.989770 g/mol
+
35.453 g/mol
=
58.44277 g/mol
In stoichiometric calculations, this value is often used as
58.44 g/mol
.
Answer:
NaCL
na=23
cl=35.5
23+35.5
=58.5
Explanation:
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