1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Elza [17]
4 years ago
5

The molar solubility of magnesium carbonate is 1.8 × 10–4 mol/l. What is ksp for this compound?

Chemistry
2 answers:
Serhud [2]4 years ago
4 0

Answer:

3.2 × 10⁻⁸

Explanation:

Let's consider the solution of magnesium carbonate.

MgCO₃ ⇄ Mg²⁺(aq) + CO₃²⁻(aq)

We can relate the molar solubility (S) with the solubility product (Ksp) using an ICE chart.

         MgCO₃ ⇄ Mg²⁺(aq) + CO₃²⁻(aq)

I                             0                0

C                          +S              +S

E                            S                S

The Ksp is:

Ksp = [Mg²⁺] × [CO₃²⁻] = S × S = S² = (1.8 × 10⁻⁴)² = 3.2 × 10⁻⁸

Stells [14]4 years ago
4 0

Answer:

Ksp = 3.2 * 10^-8

Explanation:

Step 1: Data given

magnesium carbonate = MgCO3

The molar solubility of magnesium carbonate = 1.8 * 10^-4 mol/L

Step 2: The balanced equation

MgCO3(s) ⇔ Mg^2+ + CO3^2-

For 1 mol MgCO3 we'll have 1 mol Mg^2+ and 1 mol CO3^2-

Step 3: Calculate Ksp for this compound

Ksp = [Mg^2+][Co3^2-]

For 1 mol MgCO3 we'll have 1 mol Mg^2+ and 1 mol CO3^2-

Ksp = X * X = X²

X = 1.8 * 10^-4

Ksp = (1.8 *10^-4 )* (1.8 * 10^-4)

Ksp = 3.2 * 10^-8

You might be interested in
A student has two compounds in two separate bottles but with no labels on either one. One is an unbranched alkane, octane, C8H18
Aleks [24]

Answer:

a) both substances are insoluble in water

b) both substances are soluble in ligroin

c) both substances suffer combustion, octane produces more CO₂ than hexene.

d) both substances are less dense than waterl, with hexene having the lowest density.

e) only hexene would react with bromine

f)  only hexene would react with permanganate

Explanation:

a) both substances are non-polar and water is polar

b) both substances are non-polar and lingroin is non-polar

c) C₈H₁₈ + 17.5O₂ → 8CO₂ + 9H₂O

    C₆H₁₂ + 9O₂ → 6CO₂ + 6H₂O

d) water = 997 kg/m³

    ocatne = 703 kg/m³

    hexene = 673 kg/m³

e) bromine test is used to detect unsaturations

f) permanganate test is used to detect unsaturations

7 0
3 years ago
Isotopes do not have the same number of which of these?
Sindrei [870]
Isotopes are basically from the same element. In terms of subatomic particles of the element, the isotopes will then basically have the same number of protons. The electrons also have to be same in number given that the elements are in neutral charges. 

We are then left with neutrons, which is one of the subatomic particles residing in the nucleus of an atom.

Thus, the answer is NEUTRONS.
3 0
3 years ago
Read 2 more answers
How many atoms are found in 12.0 grams of Helium?
Allisa [31]
<span>Each mole contains Avagodro's number of atoms i.e. 6.023x10^23, so

3 moles x 6.023x10^23 atoms/mole = 18.069x10^23 atoms = 1.8x19^24 atoms </span>
3 0
3 years ago
Read 2 more answers
Write the structure of the aldol condensation-dehydration product that you synthesized. Using this structure, analyze the NMR sp
STALIN [3.7K]

Answer:

Please find the solution in the attached file.

Explanation:

8 0
3 years ago
You have 4 moles of oxygen gas in a flask. 4 moles of helium gas is added. What happens to the total pressure of the gases in th
ASHA 777 [7]

Answer: The correct option is (c). The total pressure doubles.

Solution:

Initially,  only 4 moles of oxygen gas were present in the flask.

p_{O_2}=Tp_1\times X_{O_2}  (X_{O_2}=\frac{4}{4}) ( according to Dalton's law of partial pressure)

p_{O_2}=Tp_1\times 1=Tp_1....(1)

Tp_1= Total pressure when only oxygen gas was present.

Final total pressure when 4 moles of helium gas were added:

X'_{O_2}=\frac{4}{8}=\farc{1}{2},X_{He}=\frac{4}{8}=\frac{1}{2}

partial pressure of oxygen in the mixture :

Since, the number of moles of oxygen remains the same, the partial pressure of oxygen will also remain the same in the mixture.

p_{O_2}=Tp_2\times X'_{O_2}=Tp_2\times \frac{1}{2}

Tp_2= Total pressure of the mixture.

from (1)

Tp_1=Tp_2\times X'_{O_2}=Tp_2\times \frac{1}{2}

On rearranging, we get:

Tp_2=2\times Tp_1

The new total pressure will be twice of initial total pressure.

7 0
3 years ago
Other questions:
  • Explain the process of preparation of bleaching powder and mention any
    6·2 answers
  • A 36.41-g sample of calcium carbonate (CaC O 3 )
    15·1 answer
  • Which property is the least reliable method for identifying a mineral
    12·2 answers
  • Which is most likely why many scientists reject the cold fusion theory?
    13·1 answer
  • For millions of years, large amounts of glacial ice formed on earth, covering huge areas of land. it then melted, or receded. wh
    11·1 answer
  • A student finds the mass of a solid object to be 45.026 grams. The student places some water in a graduated cylinder as shown in
    12·1 answer
  • Consider 55 mL of water (H2O) in a beaker and 55 mL of acetone [(CH3)2CO] in an identical beaker under identical conditions. Com
    12·1 answer
  • Susie cooked sausages on a barbecue. Fat and water in the sausages changed state. which two changes of state occur during this p
    11·1 answer
  • How many atoms in:
    13·1 answer
  • How many moles of water can be made when 48 moles of HNO3 are consumed?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!