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
BARSIC [14]
3 years ago
15

Iron fluoride (FeF2) dissociates according to the following equation:

Chemistry
1 answer:
melomori [17]3 years ago
4 0

Answer:

S = 0.788 g/L

Explanation:

The solubility product (Kps) is an equilibrium solubization constant, which can be calculated by the equation:

Kps = \frac{[product]^x}{[reagent]^y}

Where x and y are the stoichiometric coefficients of the product and the reagent, respectively. Because of the aggregation form, the concentration of solids is always equal to 1 for use in this equation.

Analyzing the equation, we see that for 1 mol of Fe^{+2} is necessary 2 mols of F^-, so if we call "x" the molar concentration of Fe^2, for F^- we will have 2x, so:

Kps = [Fe^{+2}].[F^-]^2\\\\2.36x10^{-6} = x(2x)^2\\\\2.36x10^{-6} = 4x^3\\\\x^3 = 5.9x10^{-7}\\\\x = \sqrt[3]{5.9x10^{-7}} \\\\x = 8.4x10^{-3} mol/L

So, to calculate the solubility (S) of FeF2, which is in g/L, we multiply this concentration by the molar mass of FeF2, which is:

Fe = 55.8 g/mol

F = 19 g/mol

FeF2 = Fe + 2xF = 55.8 + 2x19 = 93.8 g/mol

So,

[tex]S = 8.4x10^{-3}x93.8

S = 0.788 g/L

You might be interested in
What element does “X” represent in Figure 1?
vredina [299]

Answer:

Argon

Explanation:

It's atomic number is 18

hope that's it

6 0
3 years ago
The question is below
rodikova [14]
The anode is the electrode where the oxidation occurs.

Cathode is the electrode where the reducction occurs.

Equations:

  Mn(2+) + 2e-  --->  Mn(s)                      Eo = - 1.18 V
2Fe(3+) + 2e-  ----> 2 Fe(2+)                2Eo = + 1.54 V

The electrons flow from the electrode with the lower Eo to the electrode with the higher Eo yielding to a positive voltage.

Eo = 1.54 V - (- 1.18) = 1.54 + 1.18 = 2.72

Answer: 2.72 V

3 0
3 years ago
What are the answered to both 1 and 2
baherus [9]
By the lloks ofit you cant see it send a better picture
7 0
3 years ago
Can someone help me plz
Alexus [3.1K]

Answer:

Explanation

There is a direct proportional relationship between mass and volume of water. As volume of water increases, the mass of water increases as well.

4 0
3 years ago
Is a landslide an example of erosion or weathering
Shtirlitz [24]

Answer:

It is a example of erosion

Explanation: because pieces of rock erode making it unstable a causes a landslide

7 0
3 years ago
Other questions:
  • It has been proven that North America is moving west about 2 cm per year. How many kilometers wouldn’t move in 5000 years
    14·1 answer
  • Which college classes would a student most likely take to become an oceanographer? Select 4 choices.
    7·1 answer
  • What type of friction acts on a turning wheel or tire?
    8·1 answer
  • Use the drop-down menus to complete the<br> corresponding cells in the table to the right.
    12·2 answers
  • Write the proper word equation to express the following chemical reaction: 4Fe (s) + 3Sn(NO3)4 (aq) arrow 4Fe(NO3)3 (aq) + 3Sn (
    7·1 answer
  • Rank the following substances in order from most soluble in water to least soluble in water: ethane, C2H6; 2-butanol, C4H9OH; po
    13·1 answer
  • In a chemical reaction, which is the MOST LIKELY reactant for these products?
    5·2 answers
  • A solution of NaCl(aq)NaCl(aq) is added slowly to a solution of lead nitrate, Pb(NO3)2(aq)Pb(NO3)2(aq) , until no further precip
    15·1 answer
  • HELP I’ll give Brainliest
    10·1 answer
  • Please help!!! (im really bad at chemistry)
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!