brittanyhogan0413 brittanyhogan0413
  • 12-07-2016
  • Chemistry
contestada

What is the molarity of a 5.00 x 10^2mL solution containing 21.1g of potassium bromide? The molar mass of KBr is 119.0 g/mol

Respuesta :

Willchemistry
Willchemistry Willchemistry
  • 13-07-2016
Volume of solution in liters:

5.00 x 10² mL / 1000 => 0.5 L 

number of moles:

mass of solute / molar mass

21.1 / 119.0 => 0.1773 moles

Molarity = number of moles / volume 

M = 0.1773 / 0.5

M = 0.355 mol/L

hope this helps!

Answer Link

Otras preguntas

If the federal and state minimum wages are different the highest minimum wage is used
When something desirable is taken away from a subject's environment or experience in response to their behavior, it is called _____?
Kyle swann 450 yards in 5 minutes. what is the average number of yards he swam per minute
Angela shared a cab with her friends. When they arrived at their destination, they evenly divided the $48 fare among the "j" of them. Angela also paid a $5 tip.
Can u help How to solve
What is the meaning of dwaft ?
Compare to hardness of gypsum to an everyday substance
Describe three major ideas or viewpoints that influence current attitudes toward the environment
how do I solve this x/2-1=x/5+2
What is the basic unit of an element that can enter into chemical combination?