helper8618 helper8618

21-05-2018
Chemistry

contestada

How many liters of whater must be added to 20l of a 75% acid solution toproduce a solution that is 15% acid?

Respuesta :

emchemwhiz emchemwhiz

21-05-2018

80 liters of water

this is a mixture problem.
75% x 20 = 1500 (acid solution)
0 x X = 0 (water)
15 x 20+x = 300 + 15x

looking at column 3, we get 1500+0 = 300+15x
using properties, x=80

Answer Link

Otras preguntas

Can someone help me with semi tone and tone definitions plz

1) Ashley is playing a computer game. In order to advance to the next level, she must score at least 15 points. She scores 20 points for correct matches and -7

How did Union objectives appear different to Lincoln at the end of the Civil War than they had at the beginning ?

expression for the area of the rectangle shown. (A = length x Simplify width) * 8x - 2. 4

In this part of the selection, scientists were surprised that a baby octopus was A small enough to hide from a jellyfish. B. brave enough to hunt at night. С sm

The length of a rectangle is 3 yd longer than its width. If the perimeter of the rectangle is 66 yd, find its length and width.

help with this bounds question please

I need help please thanks if you do

Peter is a college professor. His gross salary is $112,000. If he has to pay 25% income tax what is Peter's net income?

Do you think a situation like the Salem Witch Trials could happen in the present day? Why or why not? Explain your opinion in at least 5 sentences. Give specifi