Question

Choose and write the components of buffer on basic of H2SO3 pka1 =1.8 pka2= 7.2 When it is need to prepare the buffer with ph=7.6. calculate volumes of 1 M solution of components to prepare 1 L of buffer ?

zom
but why​

Answer 1

Answer:

The chemical formula of sodium carbonate (washing soda) is Na2CO3. When it is heated it undergoes a thermal decomposition reaction. This takes place above 500 degree C. The reaction of decomposition is

Na

2

CO

3

(s)→Na

2

O(s)+CO

2

(g)

The name of the first reaction product Na_2O is Sodium Oxide which is solid and used in glass making and the name of the second reaction product is Carbon Dioxide which is a gas

On calculating this reaction one might get answer 2.08 litres but as Na

2

CO

3

is soda ash and it does not decomposes at STP And CO

2

does not evolved

So the answer will be zero litres.

Answer 2

Answer:

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