gracemcintosh5 gracemcintosh5
  • 20-09-2022
  • Mathematics
contestada

.How many gallons of hydrochloric acid must be added to
12 gallons of a 30% solution to obtain a 40% solution

Respuesta :

hellokittyfan123
hellokittyfan123 hellokittyfan123
  • 20-09-2022

Answer:

5.6

Step-by-step explanation:

.30*12+x=.40(12+x)

3.6+x=4.8+.40x

x-.40x=4.8-3.6

.6x=1.2

x=1.2/.6

x=2 gallons of acid needs to be added.

Proof:

.30*12+2=.4(12+2)

3.6+2=.4*14

5.6=5.6

Answer Link

Otras preguntas

Which is a carbohydrate monomer glucose,sucrose,glucagon,or glycogen ?
According to the interpretation one cause of world war I was that ______
What was the significance of the Second Battle of the Marne?
x^2 - 5x - 66 = 0 Factor and solve
What was the most important achievement of Pope Gregory I?
How does studying WW1 help us understand the causes of modern conflict?
Which area in india first witnesssed green revolution and why did they adopt it?
As the Bantu people migrated, please describe in no less than 2 sentences what knowledge they shared.
What were the results of Japan’s growing imperialism at the end of the 19th century?
Legislative Branch - What Article of the Constitution can the Legislative Branch be found?