Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. suppose 39.4g of zinc chloride is dissolved in 250

Suppose 39.4g of zinc chloride is dissolved in 250.mL of a 0.60 M aqueous solution of...

Free

80.2K

Verified Solution

Question

Chemistry

Suppose 39.4g of zinc chloride is dissolved in 250.mL of a 0.60M aqueous solution of potassium carbonate. Calculate the finalmolarity of zinc cation in the solution. You can assume the volumeof the solution doesn't change when the zinc chloride is dissolvedin it. Round your answer to 2 significant digits.

Answer & Explanation Solved by verified expert
4.2 Ratings (717 Votes)

no of moles of ZnCl2   = W/G.M.Wt

                                = 39.4/136.286   = 0.289moles

no of moles of K2CO3 = molarity * volume in L

                                  = 0.6*0.25    = 0.15moles

ZnCl2(aq) + K2CO3(aq) ---------> ZnCO3(s) + 2KCl(aq)

1 moles of K2CO3 react with 1 mole of ZnCl2

0.15moles of K2CO3 react with 0.15 moles of ZnCl2 is required

ZnCl2 is excess reactant

The no of moles of excess reactant left after complete the reaction = 0.289-0.15   = 0.139moles

molarity of ZnCl2   = no of moles/volume in L

                          = 0.139/0.25   = 0.56M

ZnCl2(aq) -----------> Zn^2+(aq) + 2Cl^- (aq)

0.56M ------------------ 0.56M

The final molarity of Zn^2+ = 0.56M >>>>answer
Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:
  • Unlimited Question Access with detailed Answers
  • Zin AI - 3 Million Words
  • 10 Dall-E 3 Images
  • 20 Plot Generations
  • Conversation with Dialogue Memory
  • No Ads, Ever!
  • Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!
Become a Member

Other questions asked by students

Accounting
1.2K views

On January ?1, Staley Utilities Company acquired a power plant at a total cost of $23,580,000?,...

Mechanical Engineering
1.2K views

Thermodynamics: It is not always possible or practical to measure a thermodynamic property directly. In the...

Advance Math
1.2K views

Using field axioms, prove the following theorems: (i) If x and y are non-zero real numbers,...

Basic Math
1.2K views

From a hot-air balloon, Zoe measures a 37 angle of depression to a landmark that's1441...

Calculus
1.2K views

Determine whether f x x 2 3x 4 has a maximum or a minimum

Accounting
1.2K views

What is the essence of the business case for why a company should engage in...

Accounting
1.2K views

A company uses participative budgeting. In order to more easily meet budgetary goals, the controller...

Accounting
1.2K views

On Jan 1, 2018 Lisas Limos purchases a fleet of 10 cars with a total...

Accounting
1.2K views

Comprehension Questions for Educated: A Memoir by Tara Westover (Chapters 19-24) 1. What derogatory term...

Accounting
1.2K views

Gatineau Bank is considering giving Novak Corporation a short-term bank loan. Before doing so, it...

Accounting
1.2K views

Transcribed image text

Accounting
1.2K views

E6-4 Inferring Merchandise Purchases lululemon athletica inc. lululemon athletica inc. was founded in Vancouver...