Answer to Question #88157 in General Chemistry for Kori

Question

What is the percent composition of NiO, if a sample of NiO with a mass of 45.7g contains 36.103g Ni and 9.597g O

Answer 1

% Nitrogen of the sample NiO can be solved:

%Ni = ( 36.10 g Ni / 45.7 g NiO) x 100

%Ni = 79% Ni

 

% oxgen:

%O = ( 9.547 g O / 45.7 g NiO) x 100

%O = 21 % O

 

Answer is : 79% of Ni and 21% O