Logo
Home Study Material Contact Search
AI Chat FREE
  1. sciences
  2. chemistry
  3. i was wondering if i was doing a conversion right.

I was wondering if I was doing a conversion right. I am supposed to take aqueous...

Free

60.1K

Verified Solution

Question

Chemistry

I was wondering if I was doing a conversion right. I am supposedto take aqueous HNO3 with a density of 1.42 g/mL and a mass percentof solution of 70% and convert that into molarity. Would thecorrect conversion be to take 70 g of HNO3 over 100 g of H2Omultiplied by 1 mol HNO3 over 63.01 g HNO3 (the molar mass) andthen multiply that by 1 g H2O over 0.001 L of H2O to get the molesper liter or would I use the given density (1.42 g/mL) from theproblem? Also, would the molality be 11.1 mol HNO3/kg H2O and wouldthe mole fraction be 1/6 mol HNO3/mol H2O

Answer & Explanation Solved by verified expert
4.4 Ratings (649 Votes)

Molarity = mass % x density x 10 / Molar mass

             = 70 x 1.42 x 10 / 63.01

              = 15.78 M

moles of solute = 70 g / 63.01 = 1.11 moles

mass of water = 100 g = 0.1 kg

molality = moles of solute / mass of solvent in kg

             = 1.11 / 0.1

molality = 11.1 mol HNO3 / kg H2O

moles of water = 100 / 18 = 5.56

mole fraction HNO3 = 1.11 / (1.11 + 5.56)

                                = 0.166

                                = 1/6 mol HNO3/mol H2O

Note : yes all are correct
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

Finance
1.2K views

Consider the following information for Evenflow Power Co.,      Debt: 6,000 8.5 percent coupon bonds outstanding, $1,000 par...

Basic Math
1.2K views

For the following find: (Show detailed working) 1) general solution of the associated homogns DE 2)  form of...

Statistics
1.2K views

F G 0 76.15 1 75.63 2 74.67 3 73.69 4 72.71 5 71.72 6 70.73 7 69.74 8 68.75 9 67.76 10 66.76 11 65.77 12 64.78 13 63.79 14 62.8 15 61.82 16 60.84 17 59.88 18 58.91 19 57.96 20 57.01 21 56.08 22 55.14 23 54.22 24 53.29 25 52.37 26 51.44 27 50.52 28 49.59 29 48.67 30 47.75 31 46.82 32 45.9 33 44.98 34 44.06 35 43.14 36 42.22 37 41.3 38 40.38 39 39.46 40 38.54 41 37.63 42 36.72 43 35.81 44 34.9 45 34 46 33.11 47 32.22 48 31.34 49 30.46 50 29.6 51 28.75 52 27.9 53 27.07 54 26.25 55 25.43 56 24.63 57 23.83 58 23.05 59 22.27 60 21.51 61 20.75 62 20 63 19.27 64 18.53 65 17.81 66 17.09 67 16.38 68 15.68 69 14.98 70 14.3 71 13.63 72 12.97 73 12.33 74 11.7 75 11.08 76 10.48 77 9.89 78 9.33 79 8.77 80 8.24 81 7.72 82 7.23 83 6.75 84 6.3 85 5.87 86 5.45 87 5.06 88 4.69 89 4.35 90 4.03 91 3.73 92 3.46 93 3.21 94 2.99 95 2.8 96 2.63 97 2.48 98 2.34 99 2.22 100 2.11 Use columns F and G for the Least-Squares line. Use Excel to make a scatter plot...

Biology
1.2K views

Is lactose a reducing sugar? To answer this, first draw lactose, then label the anomeric carbons...

Civil Engineering
1.2K views

Provide a brief review, at least 500 words, on the Hydrologic Cycle and its components. Acknowledge...

Psychology
1.2K views

What is the Code of Chivalry, and in what ways does it influence the stories of...

Geometry
1.2K views

3 In the figure c d What are the measures of 21 and 22 1...

Basic Math
1.2K views

Find the expected payback for a game in which you bet 3 on any number...

Basic Math
1.2K views

Luke purchased a warehouse on a plot of land for his business. The figure represents...

Algebra
1.2K views

(v^2/7)/v^2/3Write your answer using only a positive exponent? Assume that the variable represents a positive...

Accounting
1.2K views

ABC Company produces two products, Q and P. ABC Company can perform a maximum of...

Finance
1.2K views

d. On the basis of your findings in parts, what relations return? Explain. G5 G6...