oshaalkheyaili oshaalkheyaili
  • 04-06-2017
  • Chemistry
contestada

A student prepared a solution of NaCl by dissolving 55.0g of sodium chloride in 570 mL of water. What is the percent by mass of the NaCl solution?

Respuesta :

dec77cat dec77cat
  • 04-06-2017
m(NaCl)=55.0 g
v=570 ml
ρ=0.9982 g/ml

m(H₂O)=vρ

w=m(NaCl)/[vρ+m(NaCl)]

w=55.0/[570*0.9982+55.0]=0.0881 (8.81%)
Answer Link

Otras preguntas

Jasmine is 8 years younger than twice her sisters age. If her sister is 22 how old is jasmine. I know the answer is 36, I don't know how to write the problem.
If the birth rate is 10 per 1,000 and the death rate is 10 per 1,000,then the growth rate is A.20% B.10 (C.0%) D.100%
If a square has an area of 81 square feet .what is the length of each side of the square
0.729 rounded by the nearest tenth
Amanda's jewelry box is in the shape of a cube that has 6- inch edges what is the volume of Amanda's jewelry box
how can you use Newton's second law to find force
Decide whether the sentence is clear or has an unclear, missing, or confusing antecedent. Then choose the label that best describes the antecedent. The clear bl
Y=1/6x+1 Y=-6x+2 Is this perpendicular or parallel lines
what is 25/26 dived by 4
What is the sum of 153 and 121