A mixture of Na2CO3 and NaHCO3 has a mass of 82.8 g . It is dissolved in 1.00 L of water and the is found to be 9.92. Find mass of NaHCO3 in the mixture.

Question

A mixture of Na2CO3 and NaHCO3 has a mass of 82.8 g . It is dissolved in 1.00 L of water and the  is found to be 9.92. Find mass of NaHCO3 in the mixture.

thomaster · Answer

$\bf\Huge Welcome~to~\color{#00B4ff}{Open}\color{#7cc517}{Study}~!!!$

It is dissolved in 1.00 L of water and the ... is found to be 9.92
What's supposed to be on that empty spot?

preetha · Answer

Its probably the pH. Use the same logic as for a buffer.  Or the Henderson Hasselbach equation.  Thebuffer system is HCO3- --> Co32- + H+  
pH = pKa + log [Acid]/[Base]