Answer : The correct option is, 0.188 M
Solution : Given,
Volume of HBr solution = 27.3 ml = 0.0273 L (1 L = 1000 ml)
Molarity of HBr solution = 0.293 M
Volume of solution = 42.6 ml = 0.0426 L
The complete neutralization reaction is,
Formula used :
where,
= Molarity of HBr solution
= volume of HBr solution
= Molarity of solution
= volume of solution
Now put all the given values in the above formula, we get the concentration of .
Therefore, the concentration of the is, 0.188 M