Question

I just need the answer

Answer 1

`M_(acid)=0.114M`

Step-by-step explanation:

Hello there!

In this case, according to the given information, it is possible for us to firstly write the chemical equation whereby sulfuric acid is titrated with sodium hydroxide:

`H_2SO_4+2NaOH\rightarrow Na_2SO_4+2H_2O`

Whereas the mole ratio of acid to base is 1:2 and therefore, the relationship between the volumes and molarities is:

`2M_(acid)V_(acid)=M_(base)V_(base)`

Thus, we solve for the required molar concentration of the acid as shown below:

`M_(acid)=(M_(base)V_(base))/(2V_(acid)) \\\\M_(acid)=(0.100M*45.65mL)/(2*20.00mL)\\\\M_(acid)=0.114M`

Regards!