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
Olenka [21]
3 years ago
10

Addition of an excess of lead (II) nitrate to a 50.0mL solution of magnesium chloride caused a formation of 7.35g of lead (II) c

hloride precipitate. What was the molar concentration of chloride ions in the solution (in mol/L)?
Chemistry
1 answer:
KiRa [710]3 years ago
3 0

Answer:

[Cl⁻] = 0.016M

Explanation:

First of all, we determine the reaction:

Pb(NO₃)₂ (aq) + MgCl₂ (aq) → PbCl₂ (s) ↓  +  Mg(NO₃)₂(aq)

This is a solubility equilibrium, where you have a precipitate formed, lead(II) chloride. This salt can be dissociated as:

           PbCl₂(s)  ⇄  Pb²⁺ (aq)  +  2Cl⁻ (aq)     Kps

Initial        x

React       s

Eq          x - s              s                  2s

As this is an equilibrium, the Kps works as the constant (Solubility product):

Kps = s . (2s)²

Kps = 4s³ = 1.7ₓ10⁻⁵

4s³ = 1.7ₓ10⁻⁵

s =  ∛(1.7ₓ10⁻⁵ . 1/4)

s = 0.016 M

You might be interested in
Choose all the answers that apply.
Stolb23 [73]

Answer:

the first statement

Explanation:

hope this helps

please like and Mark as brainliest

6 0
3 years ago
A student has a salt water solution. When the student adds more salt to the solution it completely dissolves. What type of solut
AlladinOne [14]

Answer:

<h2>Saturated</h2>

Explanation:

<em>A</em><em>saturated solution is a solution that contains the maximum amount of solute that is capable of being dissolved. Table salt (NaCl) readily dissolves in water.</em>

3 0
2 years ago
Read 2 more answers
4.1 shows a plant cell. g For Examiner's Use n. C D Fig. 4.1 (i) Name the type of plant cell shown in Fig. 4.1. [1]​
Vinil7 [7]

Answer:

palisade cell due to presence of chloroplasts

7 0
2 years ago
6)<br> CFA +<br> Bra __CBra+<br> F2<br><br><br> Help please
Veronika [31]

Answer:

CFA + Bra <u>=</u> CBra + F2

Explanation:

Brainliest please! Thank you and have a nice day! :)

8 0
3 years ago
Read 2 more answers
We can calculate the mass of an object using a ____
aleksklad [387]

Answer:

analytical balance or the weighing balance

8 0
3 years ago
Other questions:
  • A compound contains 39.0% potassium, 1.01% hydrogen, 12.0% carbon and 47.9% oxygen. Find its empirical formula
    11·1 answer
  • What is the density of a block of marble that occupies 277 cm3 and has a mass of 928 g? Answer in units of g/cm3 .
    7·1 answer
  • Select the correct answer.
    7·2 answers
  • Calculate the [H3O+] of an aqueous solution that is 2.42 × 10−7 M in OH−.
    15·1 answer
  • 4. (He] 2s^1 2p^4 is the correct electron configuration for:<br> a) C<br> b) O<br> c) Si<br> d) S
    8·1 answer
  • 14. Compare between the plasticity of edge and screw dislocations in BCC metals 15. Why does a screw dislocation in a BCC metal
    6·1 answer
  • What two elements in the sun mostly made of
    13·1 answer
  • 6q+4-q+5 <br><br> please help
    9·1 answer
  • What happens when oppositely charged ions get close together?
    14·2 answers
  • Can someone help me. I fell asleep in class. T-T
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!