Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. if a solution of naoh has a 20% mass percent of na

If a solution of NaOH has a 20% mass percent of NaOH and a density of...

Free

70.2K

Verified Solution

Question

Chemistry

If a solution of NaOH has a 20% mass percent of NaOH and adensity of 1.22 g/ml, what is the molarity of this solution ?

Answer & Explanation Solved by verified expert
3.6 Ratings (428 Votes)

Answer –

We are given, 20% mass percent of NaOH , density = 1.22 g/mL

So, 20% mass percent of NaOH means 20 g of NaOH in 100 g of solution

So, moles of NaOH = mass of NaOH / molar mass of NaOH

                                 = 20 g / 39.9969 g.mol-1

                                 = 0.500 moles of NaOH

Now we need to convert 100 g od solution to volume

We know,

Density = mass / volume

So, volume = mass / density

                  = 100 g / 1.22g.mL-1

                = 81.97 mL

So, molarity of solution = 0.500 mole / 0.08197 L

                                  = 6.1 M

So, molarity of this solution is 6.1 M
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

Biology
1.2K views

Phenylketonuria is a recessively inherited disease. A woman and her husband do NOT have the disease...

Psychology
1.2K views

What is Logotherapy and how has it contributed to our modern day understanding of existential psychology?

Biology
1.2K views

Select the statements that are correct.The scientific name of an organism includes the order and...

Physics
1.2K views

3 T T T 4 To T T 33 33 In determination of young modulus...

Basic Math
1.2K views

Subtract these Binary numbers 1111 101 O 10100 1010 O 0101 1111110110

Calculus
1.2K views

5 5 pts 6 6 275 Sketch the region bounded by y region 6 4...

Accounting
1.2K views

A "catering" service has contracted a series of s dinners for...

Accounting
1.2K views

Carvey Company manufactures a variety of ballpoint pens. The company has just received an offer...

Accounting
1.2K views

The following information is given for one of a company's variable expenses: The activity...

Accounting
1.2K views

none of my posted questions are answered apart from 2a. why is this?quite disppointed with...

Accounting
1.2K views

how much money is in the new jersey client secutity fund?

Finance
1.2K views

Question 2 a. What are the main characteristics of a major financial centre? (5 marks)...