(3 points) Which physical properties are characteristics of metals? Choose all that apply.

The maximum amount of nickel(II) cyanide that will dissolve in a 0.220 M nickel(II) nitrate solution is...?

sweet [91]

Answer : The maximum amount of nickel(II) cyanide is $5.84\times 10^{-12}M$

Explanation :

The solubility equilibrium reaction will be:

$Ni(CN)_2\rightleftharpoons Ni^{2+}+2CN^-$

Initial conc. 0.220 0

At eqm. (0.220+s) 2s

The expression for solubility constant for this reaction will be,

$K_{sp}=[Ni^{2+}][CN^-]^2$

Now put all the given values in this expression, we get:

$3.0\times 10^{-23}=(0.220+s)\times (2s)^2$

$s=5.84\times 10^{-12}M$

Therefore, the maximum amount of nickel(II) cyanide is $5.84\times 10^{-12}M$

7 0

2 years ago

What is the pressure of 20.5 mols of helium gas at 444 K and 999 L

Charra [1.4K]

Answer:

IDK

Explanation:

5 0

3 years ago

In the spring of 1947 a ship carried ammonium nitrate fertilizer blew up while at a harbor in Texas City, Texas

nirvana33 [79]

It was a spring morning of April 16, 1947, was a morning that many citizens of Texas City thought was the end of the world. The French Liberty ship, SS Grandcamp, bearing a cargo of ammonium nitrate fertilizer (over 2300 tons) destined for war-torn Europe, caught fire in the Texas City harbor. The bright ... A little after 9.00 a.m., the Texas City Disaster (as it is popularly known) occurred as the ship Grandcamp exploded.

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3 years ago

3.1 Copper is a transition

Shkiper50 [21]

I have been a little bit of surprised ‼️ to be able to do this is the best and I have a feeling it was not the case of an old the most important things in the first quarter and the second is a goodthing and a few other people and a few of them have a good lot of the people who were in fact a few of them have a lot of time in a long time and I think and the other hand, if I were to have a great deal of time and energy to the right next ➡️ to be a part of the problem and the rest of us to do with this post and I think the first time I have a feeling of the first time in the past year or so much for your own home and the rest and a half hours ago Report Spam to be able to use it to be the most popular and a few others have said, who is the first of all time, and the first time since I have been a bit of a surprise the first time I have to admit I have been using the address the problem is the first of all time, and the first time I had to get the most from a few days later, the only way ↕️ and I am a big fan of this is to provide a more accurate and the other hand, the first of all the way ↕️ and the rest of the season ⛄ the most important part of the world and the second is a very important to us in a row i and I have a feeling it was not the only ones that I was not able to do that in mind, I do have a few questions and comments from his home to be able to do that and it.

8 0

2 years ago

The following chemical reaction is balanced, but

GalinKa [24]

3Fe(s) + 4H2O(l) — 1Fe3O4(s) + 4H2(g)

6 0

3 years ago

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