Question

I am given a question that gas a certain number of moles of CO3 2-, and a certain number of moles of Ca 2+, and a certain number of CaCO3(solid) moles. If this solution is not at equilibrium, then what kind of reaction will occur ? Would I need to calculate this depending on the concentrations given ?

Answer #1

Calcium carbonate is sparingly soluble in water. The solubility equilibrium is as shown.

The expression for the solubility product is

Since, the number of moles of calcium ions and carbonate ions are given, the value of the solubility product can be calculated.

If the solubility product is given and the number of moles of either calcium ions or carbonate ions are given, the number of moles of carbonate ion or calcium ion can be calculated.

For these calculations the volume must be given or molar concentrations should be given.

0.75 moles of O2 gas is mixed with 0.45 moles of
N2 gas in a 2.5 L tank at 1970 K. The two gases react to
form NO gas and the system is allowed to react equillibrium. The
equillibrium constant for this reaction is equal to 4.14 x
10-4. What are the quillibrium concentrations of all
three components?
I would really apreciate help with this question. thank you!

1- Using the balanced equation given below, calculate the number
of grams of Br 2 needed to react with exactly 53.8 g of Al.
2Al (s) + 3Br2 = 2AlBr3(s)
2- Calculate the number of moles of CO2 generated by the
reaction given below when 6.78 g of CaCO3 is heated.
CaCO3 = CaO + CO2(g)
3- Calculate the percent yield of the product if the actual
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Limestone (CaCO3) can be broken down at high temperatures: When
heated at 1.00x103 K for a certain amount of time, it can be
completely transformed into two oxides: carbon dioxide and calcium
oxide (known as “burnt lime”, figure why J). The solid is then
completely dissolved in enough water to form a concentrated
solution of Ca(OH)2. A 750-fold diluted solution of Ca(OH)2
required 50.0mL of a HCl 0.200M solution to completely neutralise
its Ca(OH)2 content. a) How many moles of...

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the question I am working on is "According to an airline, flights
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(c) is find the probability that exactly 13 lights are on
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volume of the gas varied depending on the identity of the gas.
D.The number of moles in 1.00 atm of gas varied hyperbolically with
increasing molar mass.
Given Avogadro's Law, which of the following statements...

1)
Ammonia reacts with to form
either or according to these unbalanced
equations:
In a certain experiment 2.00 moles of and 10.00 moles
of are contained in a closed flask. After the reaction
is complete, 6.60 moles of remains. Calculate the number
of moles of in the product mixture: (Hint: You
cannot do this problem by adding the balanced equations, because
you cannot assume that the two reactions will occur with equal
probability.)
mol
2)
The aspirin substitute, acetaminophen (), is produced by the
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certain that I am correct, any assistance will do. Thanks!
Consider the following sample: 8, 5, 11, and 4.What is the
mean?
The mean is 6.5
The mean is 7.5
The mean is 8
None of the above
What is the median?
The median is 7
The median is 5
The median is 8
None of the above
What is the mode?
The mode is 8
The mode...

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I am confused and need it explained please. My question is if a
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is that the amount divided among the partners? It is not specified
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If the number of moles of an ideal gas in a firm container
doubles while volume and temperature remain constant …
a. pressure doubles
b. pressure quadruple
c. pressure remains constant
d. pressure is reduced to half
e. pressure is reduced to a quarter
a
b
c
d
e
incorrect
IncorrectQuestion 2
0 / 1 pts
There are 3 balloons sitting next to each other, each of a
different size. What is in the biggest...

I am unsure how to solve this question.
The flow rate and NaCl concentration of a river are 2 million
gallon per day and 32 ppm. A
food processing plant produces and releases a saline solution at a
rate of 85 gpm into the
stream. The salts quickly become uniformly distributed in the
stream. Downstream of the
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