marshmarlowe marshmarlowe

23-05-2016
Chemistry

contestada

How many mL of a stock solution of 2.00 M KNO3 are needed to prepare 100.0 mL of 0.15M KNO3? with work plz

Respuesta :

Willchemistry Willchemistry

23-05-2016

Using the law of dilution :

Mi x Vi = Mf x Vf

2.00 x Vi = 0.15 x 100.0

2.00 x Vi = 15

Vi = 15 / 2.00

Vi = 7.5 mL

hope this helps!

Answer Link

Otras preguntas

A golf ball is dropped from rest from a height of 9.5m. It hits the pavement then bounces back up rising just 5.7 m before falling back down again. A boy the

A golf ball is dropped from rest from a height of 9.5m. It hits the pavement then bounces back up rising just 5.7 m before falling back down again. A boy the

Sara is putting away a pile of 36crayons she can pack them in boxes of10crayons or as single crayons .what are the different ways Sara can pack the crayons?

Sylvan withdrew 2/5 of the amount in his savings account, and spent 7/10 of that money. What fraction of his total savings does he still have?

What is 47% of 164 while using a fraction to estimate the percent of each number.

Which choices are in the solution set of the inequality below? Check all that apply. 20x>70 A: 6.5 B: 3 C: 3.5 D: 1 E: 5 F: 4

how did other nations contribute to the american revolution?

A rectangle is 5 units long. The rectangle is also 3 units wide. What is its perimeter?

How can you find the net force if two forces act in opposite direction?

A drawing of a surfboard in a catalog shows it's length as 8 4/9 inches. Find the actual length of the surfboard if 1/2 inch length on the drawing corresponds t