Answer:
See explanation
Explanation:
On a certain day, our teacher came to class with a container having some salt, some sand and a few pieces of iron in it. She was about to introduce a lesson on separation of mixtures.
Then she held a large bar magnet close to the mixture and shook it, the pieces of iron were attracted by the magnet and separated from the mixture.
Next, she poured some water into the mixture and the salt dissolved. She got a filter paper and separated the solution from the sand.
Then she heated the solution to dryness in an open crucible and the salt was recovered.
Calcium chloride is the salt of hydrochloric acid and calcium hydroxide. Calcium hydroxide is usually not considered a strong base, and I believe this is because of it's low solubility. HCl is a strong acid, and so the salt should be slightly acidic.
Answer:
Hg+2 + 2Cl- -> HgCl2
Explanation:
Message me for explanation.
After the first 30 minutes,
dT = 75-60
= 15
dt = 30 mins
k = (15/60) * (60 - 38)
k = 5.5
After 60 minutes,
dT = 60 - T
dt = 30
(60 - T)/30 = 5.5(T - 38)
60 - T = 165T - 6270
166T = 6330
T = 38.13°F
The equilibrium constant for a reaction is simply the
product of the solubility constant of the solute and the formation constant of
the product, that is:
Keq = Ksp * Kf
Keq = 1.8 × 10^−10 * 1.0 × 10^21
<span>Keq = 1.8 x 10^11</span>