ashleysatori5397 ashleysatori5397

07-12-2017
Mathematics

contestada

A Chemist has 100g of 25% acid solution. How much of these solution he needs to drain and replace with 70% acid solution to obtain 100g of 60% acid solution?

Respuesta :

Kalahira Kalahira

17-12-2017

let us assume x=amt of 25% solution to drain and replace with 70% solution 25%

25%(100-x)+70%x=60%100

25-.25x+.70x=60

.50x=35

x=70

so he needs to drain and replace 70 mg of these solution to obtain 100g of 60% acid solution.

Answer Link

Otras preguntas

how did the federalists secure support for the new constitution

ther are 6 blades on each windmill how many total blades are on 7 windmills ? use a fives fact to solve

You can use pen and highlighter tools to emphasize information on a slide during a PowerPoint presentation. These tools are available from the Choose one answer

Native Americans weavers often depicted abstract patterns that represented which of the following? A.) friendship B.) discovery C.) power D.) nature

Describe a situation when you might travel at a high velocity, but with low acceleration.

Explain at the molecular level why the pH increases as NaOH is added to HNO3 (titration)

A motor running at 2600 rev/min is suddenly switched off and decelerates uniformly to rest after 10 s. Find the angular deceleration and the number of rotations

How did the Soviets respond when East Berliners defected to the West in large numbers? A. They built a wall separating East and West Berlin. B. They declared th

Marty ate 4/6 of his pizza and Luis ate 5/6 of his pizza. Marty ate more pizza than Luis . How is that possible?

two things found in a plant cell that are not found in a animal cell