Sodium carbonate and sodium bicarbonate are two of the major components of soda ash. In a 5.00 g sample of soda ash, there is 2.27 g of sodium carbonate and 1.09 g of sodium bicarbonate. Calculate for the percent composition of sodium carbonate and sodium bicarbonate in the sample.
Answers
Answer:
Molecular Formula
Na2CO3· nH2O (n = 0, 1 or 10) or Na2CO3 or C2H5Na3O8 or Na2CO3.NaHCO3.2H2O or CNa2O3
Synonyms
SODIUM CARBONATE
497-19-8
Disodium carbonate
Soda Ash
Carbonic acid disodium salt
Molecular Weight
105.988 g/mol
Parent Compound
CID 767 (Carbonic acid)
Component Compounds
CID 767 (Carbonic acid)
CID 5360545 (Sodium)
Dates
Modify
2020-10-31
Create
2005-07-19
Description
Sodium Carbonate is the disodium salt of carbonic acid with alkalinizing property. When dissolved in water, sodium carbonate forms carbonic acid and sodium hydroxide. As a strong base, sodium hydroxide neutralizes gastric acid thereby acting as an antacid.
NCI Thesaurus (NCIt); DrugBank
Sodium carbonate is an organic sodium salt and a carbonate salt.
ChEBI
Given: Total sample of soda ash = 5 grams
Sodium carbonate = 2.27 grams
Sodium bicarbonate = 1.09 grams
To find: Percent composition of sodium carbonate and sodium bicarbonate in sample
Solution: Total sample = 5 grams
Other component in sample = 5 - ( 2.27 + 1.09)
= 5 - 3.36
= 1.64 grams
Percentage of sodium carbonate = (mass of sodium carbonate/total sample) ×100
= (2.27/5)×100
= 45.4%
Percentage of sodium bicarbonate in sample = (mass of sodium bicarbonate/total sample)×100
= (1.09/5)×100
= 21.8 %
Therefore, the percent composition of sodium carbonate in the sample is 45.4% and of sodium bicarbonate in the sample is 21.8%.
- Soda ash is Na₂CO₃.10H₂0 also called washing soda and soda crystals. It is a white, odorless, water-soluble salt that gives the moderately alkaline solution in water.
- The percent composition is the mass percentages of each component of the element in a compound. The sum of all the masses in a mass percentage is equal to 100%