Chemistry, asked by Memona, 1 year ago

Calculate the number of ions in one gram of na2hpo4,?

Answers

Answered by tahatariq49
2

Answer: 141.96xavogardo number

Explanation:multiply the molar mass with the avogardo numbers because the avogardo numbers are per ions,molecues etc.

Answered by AneesKakar
0

Answer:

1.69*10^{22} number of ions.

Explanation:

Since we know that the gram molar mass of the compound Na2HPO4 is  

141,96 g/mol so the number of moles for 1 gram of the above compound will be  1/141,96 which will be =0.007 moles.

So, we know that for the compund we have the number of molecules to be Na2HPO4=0.007 moles*6.02*10^{23}=4.214*10^{21}molecules where 6.02*10^{23} is the Avogadro's number.  

As, we know that the equation is Na2HPO4 - > 2Na+ + H+ + (PO4)3-  hence we can find the total number of ions as :-

The total number of ions will be =4.214*10^{21}*4 = 1.69*10^{22}.

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