Question

one has been supplied with 20mL of a 3.5M NaOH solution. If one requires a 0.35M NaOH solution, what volume of diluent would be need to be added to the provided sample

Answer 1

Welcome to OpenStudy @hena5 !

Answer 2

Maybe this should be in Chemistry.

Answer 3

Use n1V1=n2V2

Answer 4

Or what @wolfe8 said.

Answer 5

Hmm. It's m1V1=m2V2 actually where m is the molarity

Answer 6

Notation mistake

Answer 7

so far i haven't gotten a question like this in chemistry yet, this has been a biology question

Answer 8

Odd. What topic are you getting it in? Either way, can you solve it now?

Answer 9

this is so confusing

Answer 10

I'm walking you through it very slowly there.

Answer 11

:(

Answer 12

Keep trying. When you get it you'll remember it.

Answer 13

c1v1=c2v2
c1=20mL, v1=3.5=c2=0.35, and v2? is unknown

Answer 14

Yup. That's what you're looking for.

Answer 15

ok

Answer 16

(20)(3.5(0.35)=24.5

Answer 17

Btw you switched c1 and V1 there.

Why did you multiply everything...
It's V2=c1V1/c2

Answer 18

200?

Answer 19

Yes. Now that is the final volume of the solution. You already have 20. How much are you adding to it?

Answer 20

200-20?

Answer 21

180mL

Answer 22

Yup

Answer 23

omggggggggg

Answer 24

thankkkk you :D

Answer 25

this is such a relief

Answer 26

See you can do it. It's confusing at first but you'll get used to it. You're welcome and good job. Just don't give up when learning anything.

Answer 27

oh man u are such a great help i asked a tutor at school he wasn't as helpful as you

Answer 28

My back hurts

Answer 29

I mean, thanks. I try to help as much as I can. I like sharing knowledge.

Answer 30

awh
get some rest

Answer 31

i have another question but ill let u go
and try to figure it out

Answer 32

Ok well tag me if you need help. I'll be on for a bit.