Question

Mass percent of Na2Co3 elements

Answer 1

Answer:

Mass percent of sodium - 43.40%

Mass percent of Carbon - 11.32%

Mass percent of Oxygen - 45.28%

Answer 2

Na=46g

% =46/106*100

= 4600/106

=43.39%

O=48g

%=48/106*100

= 4800/106

=45.283%

hope it helps!