Question

@triciaal
Picture with problem below :)

Answer 1

do you know the different concentration definitions?

Answer 2

no..

Answer 3

start from that IDEA

Answer 4

how are you solving problems without learning the proper vocabularies and concepts first?

Answer 5

this is a simple arithmetic, but you need to get the concept first

Answer 6

Hence, why I got it wrong the first time..

Answer 7

well then... why don't you read about the topics first before you start answering and ask for help?

Answer 8

http://finedrafts.com/files/CUNY/chemistry/General/Zumdahl%20etal/8th%20ed/CH11%20Properties%20of%20Solutions.pdf

Answer 9

your file is taking forever to load..^

Answer 10

IS*IV = FS*FV

Answer 11

^What does that stand for

Answer 12

i can't believe i'm stuck on this
was the correct answer a?

Answer 13

initial strength, volume then final same

Answer 14

i need to review my notes

Answer 15

I don't know what the correct answer is..
haha, I know how you feel..

Answer 16

ok. im not sure if this is right but i got an answer.

so you have 12 L of 8%. and you want to find how many Liters of 100% peroxide needs to be added. let's call it x.

understand so far?

Answer 17

@lilia222

and when you combine these two solutions, you want 12+x of a 16% peroxide solution

Answer 18

I think it's 1.14 , thanks for trying

Answer 19

ok. cool. cuz thats what i got too!

Answer 20

here's my work

Answer 21

set up the equation, which is A + B= solution
so

0.08(12) + x = 0.16(12+x)
distribute then solve for x.

and you get x= 1.1428571.......