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:
a i think i hope this hepls
Explanation:
Answer: the correct answer is B. Hallogens hope this helped mind helping out with making me brainliest?
Answer:
0
Explanation:
CaBr₂ is a compound, so it shouldn't have a charge--it's not an ion. But let's check to make sure.
Calcium has a charge of +2.
Bromine has a charge of -1, but there are two Br, so the charge is -2.
+2 + -2 = 0, so the overall charge is 0!
Answer: 23.53g
Explanation:
5.2/(2x16) = 0.1625 mol
0.1625 x 2 = 0.325 mol
0.325 x (23 x 2 + 16 x 2) = 78 x 0.325 = 23.53g
