0
Here we have 2 atoms of Na, 1 of C, and 3 of O, which is why we multiply the atomic weights by those numbers.
Na = 22.989770 * 2 = 45.97954 g/mol
C = 12.0107 * 1 = 12.0107 g/mol
O = 15.9994 * 3 = 47.9982 g/mol
If we sum these three products, we get a total of 105.98844 g/mol. This is the molecular weight of Na2CO3. Then, we divide:
45.97954 / 105.98844 = .4338 = 43.38%
12.0107 / 105.98844 = .1133 = 11.33%
47.9982 / 105.98844 = .4529 = 45.29%
Hope that helps.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the percent composition of Li in LiOH?
The percent composition of lithium in LiOH is: 29,21 %.
What is the percent composition of ammonium carbonate?
Can you be more specific? Percent composition is usually the percent of an element in a compound.
What is the percent composition of CH3CH2OH?
The percent composition of ethanol is: - C: 52,13 % - O: 34,74 % - H: 13,13 %
What is the percent composition of MnCl2?
The percent composition of manganese dichoride (MnCl2) is: - Mn: 44 % - Cl: 56 %
What is the percent composition for CuBr2?
The percent composition for CuBr2 is: Cu= 28.45% Br= 71.55%
What is the difference between NaCl and Na2SO4?
NaCl is sodium chloride and Na2SO4 is sodium sulfate; chemicals with different composition or structure have different chemical and physical properties.
What is the percent composition of Li in LiOH?
The percent composition of lithium in LiOH is: 29,21 %.
What is the percent composition of ammonium carbonate?
Can you be more specific? Percent composition is usually the percent of an element in a compound.
Percent composition is expressed as a percent by?
Percent composition is usually expressed as a percent by mass, but in the case of gases and vapors, it is often expressed as a percent by volume.
How do I calculate the percent composition of the following by mass with 3 significant figures O in Na2SO4?
Add up the compound's molar mass: Na=2(23), S=1(32), O=4(16). Sum is 142. Oxygen's part of that total is 64 (16x4). Percent is part/total, so 64/142 = 0.4507 = 45.1%.
What is the percent composition of CH3CH2OH?
The percent composition of ethanol is: - C: 52,13 % - O: 34,74 % - H: 13,13 %
What is the percent composition of MnCl2?
The percent composition of manganese dichoride (MnCl2) is: - Mn: 44 % - Cl: 56 %
What is nitrous oxide percent composition?
The percent composition of nitrous oxide is: - N: 63,649 % - O: 36,351 %
What is the composition of 5 percent dextrose solution?
what is the composition of dextrose 5%
What is the percent composition for CuBr2?
The percent composition for CuBr2 is: Cu= 28.45% Br= 71.55%
What is the percent component of a mixture formula?
note: NOT percent composition.
What is the percent composition of N?
71%
