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
klio [65]
3 years ago
12

The solubility of barium carbonate, BaCO3, is 0.0100 g/L. Its molar mass is 197.3 g/mol. What is the Ksp of barium carbonate? Ex

press your answer numerically.
Chemistry
2 answers:
marin [14]3 years ago
7 0

Answer : The value of K_{sp} is, 2.57\times 10^{-9}

Explanation :

First we have to calculate the solubility in mole/L.

Solubility=\frac{0.01g/L}{197.3g/mole}=5.07\times 10^{-5}mole/L

The balanced equilibrium reaction will be,

BaCO_3\rightleftharpoons Ba^{2+}+CO_3^{2-}

The expression for solubility constant for this reaction will be,

K_{sp}=[Ba^{2+}][CO_3^{2-}]

K_{sp}=(s)\times (s)

K_{sp}=(s)^2

Now put the value of solubility in this expression, we get the K_{sp} of barium carbonate.

K_{sp}=(5.07\times 10^{-5})^2

K_{sp}=2.57\times 10^{-9}

Therefore, the value of K_{sp} is, 2.57\times 10^{-9}

Karolina [17]3 years ago
6 0

The value of {{\text{K}}_{{\text{sp}}}} for barium carbonate is \boxed{{\text{2}}{{.6 \times 1}}{{\text{0}}^{{\text{ - 9}}}}}.

Further explanation:

Solubility product constant:

The equilibrium constant between the compound and its ion, when dissolved in solution, is known as solubility product constant. It is denoted by {{\text{K}}_{{\text{sp}}}}. The solubility product constant is used to calculate the product of the concentration of ions at equilibrium. Higher the solubility product constant more will be the solubility of the compound.

The general reaction is as follows:

{\text{AB}}\left({aq}\right)\to{{\text{A}}^+}\left({aq}\right)+{{\text{B}}^-}\left({aq}\right)

The expression to calculate the solubility product for the general reaction is as follows:

{{\text{K}}_{{\text{sp}}}}=\left[{{{\text{A}}^+}}\right]\left[{{{\text{B}}^-}}\right]

Here,

{{\text{K}}_{{\text{sp}}}} is the solubility product constant.

\left[ {{{\text{A}}^ + }} \right] is the concentration of {{\text{A}}^+}ions.

\left[ {{{\text{B}}^ - }} \right]is the concentration of {{\text{B}}^ - }ions.

The dissociation of {\text{BaC}}{{\text{O}}_{\text{3}}} occurs as follows:

{\text{BaC}}{{\text{O}}_3}\to{\text{B}}{{\text{a}}^{2+}}+{\text{CO}}_3^{2-}

The given solubility of {\text{BaC}}{{\text{O}}_{\text{3}}} is 0.0100 g/L. Firstly, it is to be converted in mol/L. So the solubility of {\text{BaC}}{{\text{O}}_{\text{3}}} is calculated as follows:

{\text{Solubility of BaC}}{{\text{O}}_{\text{3}}}\left( {{\text{mol/L}}}\right)= \frac{{{\text{Solubility of BaC}}{{\text{O}}_{\text{3}}}\left( {{\text{g/L}}}\right)}}{{{\text{Molar mass of BaC}}{{\text{O}}_{\text{3}}}\left( {{\text{g/mol}}}\right)}}          …… (1)

The solubility of {\text{BaC}}{{\text{O}}_{\text{3}}} is 0.0100 g/L.

The molar mass of {\text{BaC}}{{\text{O}}_{\text{3}}} is 197.3 g/mol.

Substitute these values in equation (1).

\begin{aligned}{\text{Solubility of BaC}}{{\text{O}}_{\text{3}}}&=\left({\frac{{{\text{0}}{\text{.0100 g}}}}{{{\text{1 L}}}}} \right)\left( {\frac{{{\text{1 mol}}}}{{{\text{197}}{\text{.3 g}}}}}\right)\\&=0.00005068\;{\text{mol/L}}\\\end{aligned}

It is evident from the chemical equation, one mole of {\text{BaC}}{{\text{O}}_{\text{3}}} dissociates to form one mole of {\text{B}}{{\text{a}}^{2 + }} and one mole of {\text{CO}}_3^{2 - }. So the solubility of both {\text{B}}{{\text{a}}^{2 + }} and {\text{CO}}_3^{2-}is 0.00005068 mol/L.

The formula to calculate the solubility product of  is as follows:

{{\text{K}}_{{\text{sp}}}}=\left[{{\text{B}}{{\text{a}}^{{\text{2+}}}}}\right]\left[ {{\text{CO}}{{_3^2}^-}}\right]                   …… (2)

Substitute 0.00005068 mol/L for\left[{{\text{B}}{{\text{a}}^{{\text{2+}}}}}\right] and  0.00005068 mol/L for \left[ {{\text{CO}}_3^{2 - }} \right]in equation (2).

\begin{aligned}{{\text{K}}_{{\text{sp}}}}&=\left( {{\text{0}}{\text{.00005068}}} \right)\left( {{\text{0}}{\text{.00005068}}} \right)\\&=2.6\times{10^{-9}}\\\end{aligned}

Therefore, the value of {{\mathbf{K}}_{{\mathbf{sp}}}} for {\mathbf{BaC}}{{\mathbf{O}}_{\mathbf{3}}} is {\mathbf{2}}{\mathbf{.6 \times 1}}{{\mathbf{0}}^{ - 9}}.

Learn more:

1. Sort the solubility of gas will increase or decrease: brainly.com/question/2802008.

2. What is the pressure of the gas?: brainly.com/question/6340739.

Answer details:

Grade: School School

Subject: Chemistry

Chapter: Chemical equilibrium

Keywords: solubility, Ba2+, CO32-, BaCO3, Ksp, solubility product, molar mass, 197.3 g/mol, mol/L, g/L, 0.0100 g/L.

You might be interested in
Resonance in air columns is used in which of these musical Instruments?
AnnZ [28]
Resonance in air columns is used in a variety of musical woodwind instruments. Something like a flute for example uses resonance to make sound. Not sure what instruments you are talking about unless you provide a list.
5 0
3 years ago
Read 2 more answers
Are humans pro-karyotic or eukaryotic?
barxatty [35]

Answer:

eukaryotic

Explanation:

all human cells—including those found in the brain, the heart, the muscles, and so on—are also eukaryotic.

3 0
3 years ago
H30 + = 1x10 -10m is this acid basic or neutral
gavmur [86]

Answer:Basic

Explanation:

The pH value of the acid is 10.0 which falls within the range of basic substances. A neutral substance has a pH of 7. Any substance with pH greater than 7 is basic while pH less than 7 is for Acidic

6 0
3 years ago
How did uranium become present in Earth's upper crust? Choose one: A. It was delivered by comets that crashed into Earth's surfa
Luda [366]

Answer:

<em>Option A. It was delivered by comets that crashed into Earth's surface.</em>

Explanation:        

<em><u>Uranium (U) is a chemical element with atomic number 92.</u></em>        

<em />

<em>For many years, a large number of scientists have been studying the abundance and origin of the isotopes of uranium in Earth</em>. <u>According to some theories, the Earth's uranium was produced in one or more supernovae</u> (an explosive brightening of a star), in wich, the main process consists in the rapid capture of neutrons by seed nuclei at great rates. <u>Another theory proposes that uranium is created during the merger of two neutron stars</u> (neutron stars are very dense), because, when such dense bodies come closer together the gravitational force cause them to merge, producing huge amounts of hevy metals like uranium.                  

<u><em>Many analyses have been made of the uranium in rocks of the Earth. These measurements shows that the abundance of uranium is bigger in the crust and upper mantle of the Earth</em></u>.    

So, knowing that Earth's uranium was produced through one of these processes, <u><em>the best answer is option A, the uranium was delivered by comets that crashed into Earth's surface.</em></u>    

Have a nice day!                            

5 0
3 years ago
True or false, The four units that must always be used when using the ideal gas are 44.0 liters
Bogdan [553]

Answer:

for volume only liters can be used

Explanation:

4 0
2 years ago
Other questions:
  • Express as an ordinary number.<br><br> 3.85 x 10 -3 =<br><br> 0.00385<br> 3,850<br> 0.385
    10·2 answers
  • I need to check some chemistry questions. Help with any question is appreciated! :) Please include an explanation with your conc
    9·1 answer
  • The energy released in a nuclear reaction comes from
    5·2 answers
  • Is sand biotic or abiotic
    7·1 answer
  • Which amino acid(s) are metabolites in the urea cycle, but are not used as building blocks of proteins? A) Ornithine B) Citrilli
    5·1 answer
  • If predators A and B prey upon the same species and predator A is eliminated, the population of predator B will likely _________
    13·2 answers
  • The half-life of 3H (H-3) is 12 years. About how long does it take for 127/128 of a sample of that radionuclide to decay? (Hint:
    5·1 answer
  • Is college worth it
    6·2 answers
  • A student is investigating acceleration using balls with
    13·1 answer
  • A triple bond is made up of<br> sigma bond(s) and<br> 1,2<br> pi bond(s).<br> 2,1
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!