dlstokes4748 dlstokes4748
  • 09-06-2017
  • Chemistry
contestada

What is the pH of a 9.50×10−2 M ammonia solution??

Respuesta :

dec77cat dec77cat
  • 12-06-2017
NH₃ + H₂O ⇄ NH₄⁺ + OH⁻

c=9,50*10⁻² mol/L

Ammonia solution is a weak electrolyte.
The dissociation constant of ammonium hydroxide is:
K=1.78*10⁻⁵

[OH⁻]=√(Kc)

pH=14-pOH=14+lg[OH]⁻
pH=14+lg(√(Kc))

pH=14+lg(√(1.78*10⁻⁵*9.50*10⁻²))=8.23
pH=8.23
Answer Link

Otras preguntas

Solve the quadratic by using the quadratic formula X2-8x+17=0
21. How do you say “gift certificate" in Spanish? (1 point) Ola tarjeta de crédito el cheque personal el cupón de regalo el cheque de viajero
The 10 largest bird wingspans are 9.1, 9.8, 9.2, 9.8, 11.8, 11, 8.2, 8.2, 11, and 11.8 inches. What are the range, interquartile range, and standard deviation o
We have steroids that are commonly used in our what? A.bodies B.lives C.diets
2h + (6 + h) + 6 ∙ 2
Gas prices at a gas station rose from $2.50/gallon to $3.25/gallon. What is the percent of increase in the gas prices?
The author most likely included the map to show what
Whats between 4 1/2 and 4 3/4
PLEASE ANSWER QUICKLY!!
What is the slope of the line that is plarallel to the graph of y= -4x - 12.