neutralization ?

[Awuah29]

What kind of problem is this one here? This is a neuralization problem right? You have here stong acid and strong base here so I used NaVa=NbVb
The answer is 2 , but I get as answer 5. Previous guy, who studied for the DAT, whom i got the material from didn't get it right either (markerd)

---

Members don't see this ad.

 

[Ex_EE]

I think the answer is wrong.

 

[Lonely Sol]

What kind of problem is this one here? This is a neuralization problem right? You have here stong acid and strong base here so I used NaVa=NbVb
The answer is 2 , but I get as answer 5. Previous guy, who studied for the DAT, whom i got the material from didn't get it right either (markerd)

Shouldn't the answer be 1

Since, NaVa = NbVb
so,
Na*42.5mL = 2*.105M*25mL
Na = (2*.105*25)/42.5mL
Since, there is only 1 equivalent H present in NaOH, then N = M.
So, finally

M = (2*.105*25)/42.5mL

*Someone correct me if I am wrong!

 

[BodybldgDoc]

yes Sol is right. The answer is 1

 

[Awuah29]

Shouldn't the answer be 1

Since, NaVa = NbVb
so,
Na*42.5mL = 2*.105M*25mL
Na = (2*.105*25)/42.5mL
Since, there is only 1 equivalent H present in NaOH, then N = M.
So, finally

M = (2*.105*25)/42.5mL

*Someone correct me if I am wrong!

so, why is that 2*.105M because you the H2So4 dissociate into two ions?

 

[jdmsamurai]

H2SO4 has two equilvalents of H+ to give away...hence two