bebeveillad2574 bebeveillad2574
  • 22-09-2018
  • Chemistry
contestada

A solution is 0.0460 m nabr. what is the molarity of the solution if the density is 1.10 g/ml?

Respuesta :

kenmyna
kenmyna kenmyna
  • 01-10-2018

The molarity of NaBr = 0.05036M

calculation

Step1: calculate the total  mass

0.0460 m  NaBr    has 0.0460 moles NaBr with 1000g of solvent

therefore the mass of NaBr= 0.0460 moles x 102.89 g/mol =4.73grams

total mass is therefore= 4.733 g +1000= 1004.73 grams

step 2:

use the density to determine the volume

vol=mass/density

=1004.73 g/1.10 g/mol=913.39 ml in liters= 913.39/1000=0.91339 L


now the molarity = moles/vol in liters

=0.0460 m/0.91339=0.05036  M


Answer Link

Otras preguntas

Which pronoun best completes the sentence? How is the pronoun used? Answers: B. Her: direct object  D. Her: indirect objectDid you tell Christine and __________
Which expression is equivalent to (-2)(a+6)?a.) -2a+6b.) 2a+12c.) -2a-12d.) -2a+12
a 4 kg rock is rolling 10 m/s find its kinetic energy
A model is made of a car. The car is 8 feet long and the model is 10 inches long. What is the ratio of the length of the car to the length of the model?
is burrow a first or second accented syllable word
If 101! = (99!)x, then x = ?
You start with a number. Double it. Square the answer. You get 400. What number did you start with?
Identify the set as finite or infinite. {1,1/4 ,1/16 ,1/64 , . . .}A. FiniteB. InfiniteCan someone explain this one for me?
What is the next term in the sequence below? 1, 3, 5, 8, 11, 15, 19, 24, ... a.30 b.27 c.29 d.25
is burrow a first or second accented syllable word