Answer:
False
Explanation:
My opinion is False and im not sure
For the answer to the question above asking w<span>hich of the following would likely form a heterogeneous mixture?
The answer would be</span> <span>sand and water
other choices like
,baking soda salt and sugar are soluble in water and form homogeneous solution</span>
A) It becomes sand
I know this because Minecraft
PH to maximize the dissociation of acetic acid so as to push back the amount of acetate dissociating from the mystery compound.
<span>
Ksp = [X+][C2H3O2-] = 9.5*10^-6 </span>
<span>Substituting in the desired value for [X+] </span>
<span>9.5*10^-6 = (5.0*10^-3)x </span>
x, or acetate concentration, is .0019
<span>Now, we calculate the Ka of acetic acid: </span>
<span>pKa = -logKa </span>
<span>4.76 = -logKa </span>
<span>Ka = 1.738*10^-5 </span>
<span>We want the concentration of acetate to be .0019, so we plug that into our acid dissociation constant expression: </span>
<span>Ka = [H+][C2H3O2-]/[HC2H3O2] </span>
1.738*10^-5<span> = [H+](.0019)/1</span>
<span>[H+] = .00915</span>
<span>pH = -log[H+] </span>
<span>pH = -log(.00915) </span>
pH = 2.04
0.02375 moles
Explanation:
Fe2O3+CO :. Fe+CO2
We know that
56*2+16*3=160 gm of Fe2O3 can give 56 gm of Fe
So
3.8 gm can give 1.33 gm of Fe
It is equal to 1.33/56 moles of Fe which is equal to 0.02375 moles
