shantevinson shantevinson

13-04-2016
Chemistry

contestada

How many grams of KNO₃ should be used to prepare 2.00L of a .500 M solution ?

Respuesta :

Willchemistry Willchemistry

13-04-2016

Volume = 2.00 L

Molarity = 0.500 M

M = n / V

0.500 = n / 2.00

n = 0.500 * 2.00

n = 1.0 mole KNO₃

Molar mass KNO₃ = 101.1032 g/mol

1 mole ------ 101.1032 g
1.0 mole ------ ?

mass = 1.0 * 101.1032 g / 1

mass = 101.1032 g of KNO₃

hope this helps!

Answer Link

Otras preguntas

what expression is equivalent to (-2+4i)+(1-7i)-(-8+5i)

many insects can adapt very quickly to insectides becausse?

what term describes how the soil is arranged in aggregates?

The beginning of psychology as a science began in the discipline of

A wheel of diameter 35.0 cm starts from rest and rotates with a constant angular acceleration of 5.00 rad/s2 . At the instant the wheel has completed its second

How do i work out 782/2.2

where did the miranda v. arizona case started and the out come all the way to the supeme court? (lower andd upper level courts on the state and federal level)

What is the solution of the system? use substitution y=x+6y=2x

Marcia claims that the GCF for (2x2 + 4xy + 8xy4) is 8x2y4. Explain if she correct or not. If she is correct, justify her claim. If she is not correct, expla

until 1938 britain and france basically ignored hitlers foreign policy do you think this was wise what amde them change thier minds