Question

7.3 gram of HCl is dissolved in 50 lit of aqueous solution. It's PH

Answer 1

Explanation:

find molarity/conc first ...

then it gives conc of H+

then apply pH's formula

Answer 2

Answer:

2.397 ~ 2.4

Explanation:

• As mass / volume = molarity * molar mass , then mass / (volume * molar mass) = molarity
• To calculate the pH of an aqueous solution you need to know the concentration of the hydronium ion in moles per liter (molarity).  The pH is then calculated using the expression:
• pH = - log [H3O+].

#SPJ2