Question

A student prepares dilutions according to the following: a) 50 mL of a 6.0 M NaOH solution diluted to a final volume of 500 mL b) 75 mL of solution A are diluted to 200 mL and c) 150 mL of solution B and diluted to 1000 mL. What is the concentration of solution C?

Answer 1

a) (50)(6)=500(x) solve for x
b)(75)(M of solution A)=(200)(x)..are you given the concentrations?

Answer 2

no. I am not given the concentrations.

Answer 3

is this all there is to this question?

Answer 4

yes

Answer 5

is solution c a combination of all these substances?

Answer 6

most likely.

Answer 7

was this like a lab or something? sorry i'm trying to figure it out

Answer 8

Yes, it's an example in the post lab questions and I can't seem to figure it out. Neither can my lab partner.

Answer 9

do you have lab data for solution a,b, or c?

Answer 10

These lab questions don't have anything to do with the physical lab we did. It just says that 75 mL of solution A was diluted to 200 mL and 150 mL of solution B was diluted to 1000 mL.

Answer 11

weird...well sorry i dont know =(

Answer 12

would it help if there were multiple choice?

Answer 13

possible, cuz i might be able to figure out what they are asking for

Answer 14

A. 0.60 M
B. 0.15 M
C.0.30 M
D. 0.0338 M
E. 0.034 M

Answer 15

well i lied..that didn't help =s...the only thing i'm getting is that the total volume is 1700mL...unless..do you have moles of either A or B..i'm guessing not but just wondering

Answer 16

Nope, I don't have moles of either one. The second part of the question asks: How many moles of NaOH are present in 850 mL of solution C in part a? And that too is multiple choice.

Answer 17

this would be simple if you had the molarity or moles of A and B..but i really can't see a way of solving it..im sorry

Answer 18

It's quite alright. I'm stuck at the exact same place you are.