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
Hitman42 [59]
3 years ago
12

Which of the following gives the molarity of a 17.0% by mass solution of sodium acetate, CH 3COONa (molar mass = 82.0 g/mol) in

water? The density of the solution is 1.09 g/mL. a. 2.26 × 10^-6 M b. 0.207M c. 2.07M d. 2.26M e. 2.72M
Chemistry
1 answer:
weeeeeb [17]3 years ago
6 0

Answer:

The molarity of this solution is 2.26 M (option D)

Explanation:

Step 1: Data given

Mass % = 17%

Molar mass of CH3COONa = 82.0 g/mol

Density of the solution = 1.09 g/mL

Step 2:

Assume the mass of the solution is 1.00 gram

⇒ 17.0 % CH3COONa = 0.17 grams

⇒ 83.0 % H2O = 0.83 grams

Step 3:

Density = 1.09 g/mL

Volume of the solution = total mass / density of solution

Volume of solution : 1.00 grams / 1.09 g/mL

Volume of the solution = 0.917 mL = 0.000917 L

Step 4: Calculate  number of moles of CH3COONa

Number of moles = Mass / molar mass

Number of moles CH3COONa = 0.170 grams / 82.0 g/mol

Number of moles = CH3COONa = 0.00207 moles

Step 5: Calculate molarity

Molarity = moles / volume

Molarity solution =   0.00207 / 0.000917 L

Molarity solution =  2.26 mol/L = 2.26 M

The molarity of this solution is 2.26 M (option D)

You might be interested in
Pleaseeee helpppp thank youu​
Gemiola [76]

<em>Answer:</em>

<h3><em>Answer:</em><em> </em><em>well</em><em> </em><em> </em></h3>

<em>b. a type of gas is evolved ( hydrogen gas</em><em> )</em>

<em> </em>

5 0
2 years ago
Please help!!! ASAP
bekas [8.4K]

Na 2Co3

1*23=23. 2*12=24. 6*16=96

23+24+96=143

(23*100)/143. (24*100)/143. (96*100)/143

=16%. =16.7%. =67.1%

5 0
3 years ago
According to the pattern of carbon and hydrogen atoms in alkenes, if a molecule has three carbon atoms, how many hydrogen atoms
Gekata [30.6K]
 <span>6. 

Because the general formula for alkenes is CnH2n</span>
4 0
3 years ago
Read 2 more answers
¿Qué ocurre cuando la radiación del sol atraviesa la atmósfera?
12345 [234]
Umm yo no se no ablo engles
6 0
2 years ago
I need some help with chemistry. Let me know if you are good at it!
tekilochka [14]

Answer:

I think im good at it i have an A in the class

Explanation:

lol

3 0
3 years ago
Other questions:
  • Write a balanced equation to show the reaction of sulfurous acid with caesium hydroxide to form water and caesium sulfite.
    13·1 answer
  • What is the main difference between an isotope and an ion
    7·1 answer
  • Draw both major organic product(s) that are obtained when 4-chloro-2-methyltoluene is treated with sodium amide followed by trea
    15·1 answer
  • I really do not know how to do this, I already asked my teacher to explain it to me, but I still don’t understand. Can someone p
    14·1 answer
  • Explain clearly what is meant by the statement "The atomic mass of gold is 197.0 amu."
    11·1 answer
  • If a candle is burning in an open room, which reactant is in excess?
    10·1 answer
  • I turn the Ritz into a poor house
    5·1 answer
  • Carbon burns in the presence of oxygen to give carbon dioxide. Which chemical equation describes this reaction?
    14·1 answer
  • Sahil watched a demonstration in which a scientist combined two substances in a sealed container and analyzed the results. The e
    13·1 answer
  • What part of the autonomic
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!