Simple chemistry help needed

by Jaramide
Tags: chemistry, simple
Jaramide is offline
Dec16-03, 10:38 AM
P: 5
I need to return an asignment today and i just cant figure it out (should be a piece of cake for the people that hangs around here)

There is 10ml HCl with an unknown concentration i a beaker. You let NaOH with the concentration 0,100 mol/dm3 drip into the acid untill it is neutralized.
It takes 10,5ml NaOH to neutralize the acid.

With this you should be able to calculate the concentration of the acid or so my teacher say. And all i can do is sit here and look dumb while my brain refuses to cooperate

Could anyone help me i would owe you a life debt. If i dont get this in today i wont get a grade in chemistry [*(]
Phys.Org News Partner Chemistry news on
Computer program could help solve arson cases
Breakthrough harnesses light for controlled chemical reaction
Large-scale identification and analysis of suppressive drug interactions
himanshu121 is offline
Dec16-03, 11:42 AM
himanshu121's Avatar
P: 661
I have posted hint at
ShawnD is offline
Dec16-03, 12:20 PM
Sci Advisor
ShawnD's Avatar
P: 988
10.5mL is 0.0105L

mols of NaOH:
0.0105L x 0.1mol/L = 1.05 x 10^-3 mols NaOH

mols of HCl:
1molHCl/1molNaOH * 1.05 x 10^-3 mols NaOH = 1.05 x 10^-3 mol HCl

(1.05 x 10^-3 mol HCl) / 0.01L = 0.105 mol/L

Register to reply

Related Discussions
chemistry help needed! Biology, Chemistry & Other Homework 1
Physical Chemistry 2 - Work function - HELP NEEDED Introductory Physics Homework 4
Chemistry Reduction Reaction Help Needed Biology, Chemistry & Other Homework 6
Opinions Needed on Chemistry softwares, Which is the best? Chemistry 0
Chemistry Question - Help Needed Chemistry 0