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It is not b.
All dissociation reactions will have Equilibrium constants in the form of Ksp values.
Besides that I believe the correct answer would be A. As B,C, and D are all incorrect. And A does make sense mathematically.
Products over reactants and H2O is a liquid so it drops out
Hmm these answers seem off.
I'm almost completely sure it should be [H3O+][CH3COO-]/[CH3COOH]
Oh its C. I completely missed it XD.
I think the answer is B, because the Kc expression must apply for aqueous substances only and H2O is liquid. Solids and liquids should be out.
Thank you it was C. ________equilibrium is a type of ________equilibrium which occurs when a reaction is ________. A. Dynamic; chemical; irreversible B. Dynamic; chemical; reversible C. Chemical; dynamic; irreversible D. Chemical; dynamic; reversible
I mean C.
It cannot be A or C. A dynamic equilibrium will always be reversible.
Im almost sure it should be D. As a chemical equilibrium would fall under the classification of a dynamic equilibirum.
sorry im multitasking
C looks good.
Which of the following choices is not a potential application of the solubility product constant? A. Determine reactant concentrations that will allow a precipitate to form. B. Determine ion concentrations that will prevent a precipitate from forming. C. Determine ion concentrations that will allow a precipitate to form. D. Use Ksp to find solubility.
Well you can use Ksp to find solubility so it cant be D.
I'm actually not to sure on this one. I'm trying to think through it, but not much is coming up.
Actually it cannot be C either as you can determine how much of a ion will cause a precipitate to form.
So it's either A or B?
Ya, I think so.
Which one is the most logical answer?
I'm leaning towards A after thinking through it, but I'm still not completely sure with this question.
It was A! :)
Haha, nice. :)
I think this is just a Ksp problem in disguise, but Im not completely sure. So im going to say that 1.5x10^-8=[x][x] and then take the square root of both sides and get that x=.000122. That is equivalent to saying that [Pb2+]=1.22x10^-4.
Thank you! The solubility of a substance is the _____ amount of the substance that can dissolve to form a _____ in a given amount of a particular solvent at a specified temperature. A. minimum; solution B. minimum; precipitate C. maximum; precipitate D. maximum; stable solution
maximum amount to form a stable solution
No matter how insoluble we say a substance is something will always dissolve this even holds true for nonpolar substances being dissolved in polar substances and vice-versa. In this case the determined value of Ksp is so extremely small that we qualify it as insoluble.
What is the solubility product constant (Ksp)? A. The equilibrium constant for the formation of any ionic compound B. The equilibrium constant for the formation of a nearly insoluble ionic compound C. The equilibrium constant for the dissolution of any ionic compound D. The equilibrium constant for the dissolution of a nearly insoluble ionic compound
It was D.
@sweetburger How about this one?
B. As CaCO4 Ksp is 2.4x10^-5 and PbSO4 Ksp is 1.7x10^-8 adn CaCO4 has the larger Ksp value meaning it will be more soluble.
Not so sure about this one. A or B maybe?
Yes, I believe it would be. Think about it like this the Keq value is Products/Reactants if there are more reactants than prodcuts and I am just using arbitrary number here you will see that 1/100 = .01 which is a much smaller value then for example 100/1= 100 if there were more products than reactants . So when there are far more reactants at equilbirum the Keq value will be far less than 1. So B should be the correct answer. As for this example the Keq values is 1x10^-3 which is far smaller than 1.
So A or B?
Im pretty sure B.
What does a dissolved salt look like? A. The salt crystals are surrounded by water molecules. B. The salt crystals separate into salt molecules in the water. C. The ions in the salt are surrounded by water molecules. D. The salt separates into ions that settle to the bottom.
This should be C. as the positive ions will be surrounded by polar negative Oxygens from H2O molecules and the negative ions will be surrounded by polar positive Hydrogens from the H2O molecules.
Question 15 of 15 What is solubility a measure of? A. The energy needed for the solute to dissolve B. The amount of solute that will dissolve C. The type of solute that will dissolve D. The rate at which the solute will dissolve
@rvc @Hoslos ???
Ah it was B. Thanks though.
Yea Ksp has nothing to do with Kinetics
Thank you all so much for your help! I'm very thankful that you all helped me today! :) @Hoslos :) @rvc :) @sweetburger :)
Np :) @vera_ewing sorry I wasnt here for the last question :/
No worries :)
All the best @Hoslos @sweetburger thanks 4 helping me to help her
I am glad. It was a good team discussion here though.
Agreed @Hoslos . Well done to everybody :).