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
Andrei [34K]
2 years ago
10

A solution has a Pb2+ concentration of 1.9 x 10-3 M, and an F-1 concentration of 3.8 x 10-3 M. The value of Ksp for PbF2 at room

temperature is 4 x 10-8. Will this solution form a precipitate?
The solubility equilibrium equation is as follows.



.

Yes

No
Chemistry
2 answers:
horrorfan [7]2 years ago
6 0

A solution has a Pb2+ concentration of 1.9 x 10^-3, and an F-1 concentration of 3.8 x 10^-3 M. The value of Mps for Pbf2 at room temperature is 4 x 10^-8. This solution will NOT form a precipitate.
The solubility equilibrium equation is as follows.
PbF2 (s) <--> Pb2 (aq) + 2F- (aq)

valentina_108 [34]2 years ago
5 0
We are going to get the value of Qsp and compare it with the Ksp value:

when Qsp is the concentration of the initial products:

Qsp = [Pb2+][F-]^2

when the [Pb2+] = 1.9 x 10^-3

and [F-] = 3.8 x 10^-3

by substitution:

∴Qsp = (1.9 x 10^-3) * (3.8 x 10^-3)^2

           = 2.7 x 10^-8 

when Ksp = 4 x 10^-8

so Qsp < Ksp

∴ precipitate will not be formed 
You might be interested in
What is the name of P517
saul85 [17]

Answer:

Ryobi P517 18V Lithium Ion Cordless Brushless 2,900 SPM Reciprocating Saw w/ Anti-Vibration Handle and Tool-Less Blade Changing

Explanation:

8 0
3 years ago
What cell part is NOT found in all cells?
elena-s [515]

Answer:

heart I think also I'm so sorry if I get you this wrong I think membrane not sure tell me what was the right answer but I think membrane.

3 0
3 years ago
A 20 g granite boulder absorbs 300.2 Joules of energy from the Sun, resulting in its temperature
s344n2d4d5 [400]

Answer:

19 °C

Explanation:

Step 1: Given and required data

  • Mass of granite (m): 20 g
  • Heat absorbed (Q): 300. 2 J
  • Specific heat capacity of granite (c): 0.790 J/g.°C

Step 2: Calculate the temperature change (ΔT)

We will use the following expression.

Q = c × m × ΔT

ΔT = Q/c × m

ΔT = 300.2 J/(0.790 J/g.°C) × 20 g = 19 °C

3 0
3 years ago
HELP . which kind of tides causes the highest and lowest tides ?
katen-ka-za [31]
Answer: spring tides
When earth, moon, and sun line up cause high and low tides :)
6 0
2 years ago
Which of the following measurements is expressed to three significant figures?
matrenka [14]

The answer is C. 7.30 x 10^-7

8 0
2 years ago
Other questions:
  • What is the term that describe two species living together
    5·2 answers
  • The substances sodium (Na), oxygen (O2), and sodium oxide (Na20) participate in this chemical reaction
    7·1 answer
  • Combining Boyle's law and Charles' law forms one presure-temperature-volume relationship and holds the mass of the gas constant.
    6·1 answer
  • A 20.0 mL 0.100 M solution of lactic acid is titrated with 0.100 M NaOH.
    14·1 answer
  • As the elements are considered from left to right in period 4 which is the correct sequencing of the elements?
    10·1 answer
  • How are Kelvin scale and celcius scale similar <br>​
    9·1 answer
  • Calculate the mass percent (m/m) of a solution prepared by dissolving 51.56 g of NaCl in 164.2 g of H2O. Express your answer to
    10·1 answer
  • The structure of the Earth is divided into four major components: the crust, the mantle, the outer core, and the inner core.
    10·1 answer
  • Please help me I really need it :(
    13·2 answers
  • A codon that stops the synthesis of a protein molecule
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!