Question

please help me
what is the molarity of an HBr solution if 0.500 liters are titrated to an end point by 0.100 liters of a 2.00M KOH Solution?

Answer 1

\[M _{1}V _{1}=M _{2}V _{2}\]

Answer 2

\[M _{1}(.500)=2.00(.100)\]

Answer 3

thank you

Answer 4

yw

Answer 5

0.40L

Answer 6

Why is it liters? liter is a measure of volume.

Answer 7

0.100 Lliters

Answer 8

When you solve for M, that is molarity. It would NOT be liters.

Answer 9

i don't know
can you please explain me titration

Answer 10

You use a titration to neutralize a solution. Typically you use some indicator that changes color when the pH changes to neutral such a phenothalein.

Answer 11

thank you I got some idea

Answer 12

So the molarity of the HBr is .40 which means the solution contains .40 moles of HBr per liter of solution.

Answer 13

in my reference table I got titration formula
M A V A= M B V B
M A =molarity of H+
M B= molarity of OH-
V A=volume of acid
V b=volume of base

Answer 14

Yep. That's the same formula I posted.

Answer 15

I am got confuse what is it and how to

Answer 16

Do you understand now?

Answer 17

no i got little idea

Answer 18

what is those stands for how to put it in order to solve titration

Answer 19

MA = concentration of the acid. In your problem, the acid is HBr and MA is what we are trying to find.

Answer 20

VA is the volume of the acid. In your problem that is .500 liter

Answer 21

i got more now

Answer 22

MB is the concentration of the base. In your problem, the base is KOH and its concentration is 2.00

Answer 23

what is base

Answer 24

VB is the volume of the base which is .100 liter in your problem

Answer 25

A base has OH^- ions

Answer 26

oh ions can you explain

Answer 27

If you have something like sodium hydroxide...NaOH and dissolve it in water it dissolves and makes sodium ions and hydroxyl ions. The sodium ions have +1 charge and the hydroxyl ions have -1 charge. It is the hydroxyl ions that cause it to have the properties of a base.

Answer 28

thank you i got it now

Answer 29

thank you so much :D