Sodium carbonate also used in medicine to treat ringworm, cleanse the skin, and treat eczema. It is used as a foaming agent in toothpaste and as a wetting agent in the brick industry. Properties of Sodium carbonate It has octahedral coordinate geometry. It is preferred over sodium hydroxide due to its non-corrosive nature. It is soluble in water and glycerol but insoluble in acetone, alcohol, etc. The acidity pKa value of sodium carbonate is Summary Sodium carbonate is one of the common compounds we used in our home for purposes like washing clothes, also known as washing soda or soda ash.
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Loading Comments Email Name Website. Name of Molecule. Sodium carbonate. Chemical formula. Aqueous solutions contain water as the solvent, whereas nonaqueous solutions have solvents other than water. Polar substances, such as water, contain asymmetric arrangements of polar bonds, in which electrons are shared unequally between bonded atoms.
The aqueous solution of sodium carbonate is basic in nature. The hydrolysis of carbonate ion gives bicarbonate ion and hydroxide ion. The hydrolysis of bicarbonate ion also gives hydroxide ion. Ammonium chloride NH4Cl is the salt of a strong acid, hydrochloric acid HCl , and a weak base ammonium hydroxide NH4OH , so an aqueous solution of ammonium chloride is acidic in nature.
The aqueous solution of sodium carbonate is basic because sodium carbonate dissolves in water, it undergoes dissociation and forms three ions. These ions include two sodium and one carbonate ion. Q9 Why are potassium and cesium, rather than lithium used in photoelectric cells? Q10 When an alkali metal dissolves in liquid ammonia the solution can acquire different colours.
Explain the reasons Q11 Beryllium and magnesium do not give colour to flame whereas other alkaline earth metals do so. Q12 Discuss the various reactions that occur in the Solvay process. Q13 Potassium carbonate cannot be prepared by Solvay process. Q15 Compare the solubility and thermal stability of the following compounds of the alkali metals with those of the al Q16 Starting with sodium chloride how would you proceed to prepare i sodium metal ii sodium hydroxide iii so Q17 What happens when i magnesium is burnt in air ii quick lime is heated with silica iii chlorine rea Q18 Describe two important uses of each of the following: i caustic soda ii sodium carbonate iii quicklime Q20 The hydroxides and carbonates of sodium and potassium are easily soluble in water while the corresponding salts o Q21 Describe the importance of the following: i limestone ii cement iii plaster of paris.
Q22 Why are lithium salts commonly hydrated and those of the other alkali metal ions usually anhydrous? Q24 Explain the significance of sodium, potassium, magnesium and calcium inbiological fluids Q25 What happens when i sodium metal is dropped in water? Q26 Comment on each of the following observations: a The mobilities of the alkali metal ions in aqueous solution Q27 State as to why a a solution of Na2CO3 is alkaline?
Q29 How would you explain the following observations? Q30 Which of the alkali metal is having least melting point? Question 27 State as to why a a solution of Na 2 CO 3 is alkaline? Previous Question Next Question. Q:- Calculate the amount of carbon dioxide that could be produced when i 1 mole of carbon is burnt in air.
Q:- Calculate the wavelength of an electron moving with a velocity of 2. Q:- Which one of the following will have largest number of atoms?
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