What is percentage composition of element by mass in the lithium nitride salt, #Li_3N#?
3 Answers
The metal has approx.
Explanation:
And thus
The mass percentage of
Explanation:
The obtain the mass percentage of
mass
mass
Therefore the mass of
Now to obtain the mass percentage of
Explanation:
Find the mass of 3 atoms of lithium:
#3"Li" * 6.941 color(white)".""amu" = 20.823 color(white)".""amu"#
Find the mass of 1 atom of nitrogen:
#1 "N" * 14.0067 color(white)".""amu" = 14.0067 color(white)".""amu"#
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Now use the formula:
#% "mass" = "part"/"whole"times100%#
For Lithium:
#%"Li" = 20.823/(20.823+14.0067) = 59.8%#
For Nitrogen:
#%"N" = 14.0067 / (20.823+14.0067) = 40.2%#
Final Answer