Question

Bismark brown is a dye. Its molar mass is 228.3
g/mol. When the dye was analyzed by a
scientist, it was found that it contains 30.68%
nitrogen. How many nitrogen atoms are there in
each Bismark brown molecule?
a. 6
b. 5
d. 3​

Answer 1

Answer:

5 B is correct

Explanation:

molar mass = 228.3

% of N in molecules = 30.68/100*288.3=70.0 amur mass of 1 n atom

14 amu= 70.0/14

=5 may be 5 correct according to my logic mark me as brainlist

Answer 2

Answer: 5

Explanation:

By using a formula ,

% of nitrogen = atoms of nitrogen in compound ÷ molar mass of compound× 100

Now by converting this formula ,

Molar mass of Bismark brown × percentage of nitrogen ÷ 100

228.3×30.68÷100=70.04

Then divide this answer by atomic mass of nitrogen that is 14 .

So, 70.04÷14 = 5.003

This is our required answer ( 5 )