Question

What is the percent of Li in Li3N ? Please!!

Answer 1

I think it maybe 59.7852%

Answer 2

Answer: Li percentage in
`Li_3N` is 59.8%.

Explanation: The question asks to calculate the mass percentage of Li in
`Li_3N` .

The formula used for mass percentage of an element in a compound is:

mass percentage =
`((element mass)/(compound mass))*100`

Atomic mass of Li is 6.94 and atomic mass of N is 14.0.

There are three Li in the given compound. So, the mass of Li in the compound is = 3(6.94) = 20.82

Mass of compound = 20.82 + 14.0 = 34.82

Mass percentage of Li =
`((20.82)/(34.82))*100` = 59.8%

Hence, the percentage of Li in
`Li_3N` is 59.8%.