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
tigry1 [53]
3 years ago
14

If an unknown sample contains 39.04% sulfuric acid by mass, then a 0.9368 g of that sample would require _____ mL of 0.2389 M Na

OH for neutralization.
A) 31.22
B) 39.98
C) 7.80
D) 79.96
E) 15.61

Please give an answer and an explanation, thanks!
Chemistry
1 answer:
bonufazy [111]3 years ago
5 0

Answer:

A) 31.22

Explanation:

The reaction of sulfuric acid with NaOH is:

H₂SO₄ + 2 NaOH → Na₂SO₄ + 2H₂O

To solve this problem we need to determine the moles of acid that will react, and, using the chemical equation we can determine the moles of NaOH and the volume that a 0.2389M NaOH solution would require to neutralize it.

<em>Moles H₂SO₄ (Molar mass: 98.08g/mol):</em>

0.9368g * 39.04% = 0.3657g H₂SO₄ * (1mol / 98.08g) =

3.7289x10⁻³moles H₂SO₄

And moles of NaOH that you require to neutralize the acid are:

3.7289x10⁻³moles H₂SO₄ * (2 moles NaOH / 1 mole H₂SO₄) =

7.4578x10⁻³ moles NaOH

Using a 0.2389M NaOH solution:

7.4578x10⁻³ moles NaOH * (1L / 0.2389mol) = 0.03122L = 31.22mL

Right answer is:

<h3>A) 31.22 </h3>

You might be interested in
Forensic chemistry
Rina8888 [55]

Explanation:

clinical laboratory test results are a very important parameter in diagnosis, monitoring and screening. 70-80 ... it is possible to determine whether you can interpret the test result as being ...

5 0
2 years ago
Which alkaline earth metal has the highest ionization energy? Refer to the periodic table.
Liula [17]
I’m pretty sure the answer is Barium. I hope it helps.
4 0
3 years ago
Read 2 more answers
Pls answer these and show work
Assoli18 [71]

There's no question??

\

8 0
2 years ago
PLEASE HELP I WILL GIVE YOU 50 POINTS
Tamiku [17]
According to Raoult's law, Vapor pressure is directly proportional to the mole fraction of the solution. As 1.0 M CaF2 has least moles here, it has lowest vapor pressure.

In short, Your Answer would be Option D

Hope this helps!
8 0
2 years ago
Read 2 more answers
ASAP PLS 100 POINTS Which statement best describes the role of oxygen in cellular respiration?
Vinvika [58]
It’s A .. I think I hope this helps !
5 0
2 years ago
Read 2 more answers
Other questions:
  • How might you separate a mixture of sand and salt?
    9·1 answer
  • Name the element that has atom with 4 proton in the nucleus
    12·2 answers
  • What are some examples of exchange reactions ?
    6·1 answer
  • For the equilibrium
    10·1 answer
  • Part A Which acid in each of the following pairs has the stronger conjugate base? Match the words in the left column to the appr
    15·1 answer
  • What is the density of water if you have 50.0 grams of water and a volume of 50.0 millimeters
    14·1 answer
  • Many electrical power plants use fossil fuels, a non-renewable resource to produce electricity?
    13·1 answer
  • What is the pH of a solution of H2SO that has (H3O+) = 5.45 x 10^-5 M?
    11·2 answers
  • What is the density of a 500g box whose volume is 67 ml?
    15·1 answer
  • PLS HELP ASAP THANKS ILL GIVE BRAINLKEST PLS THANKS PLS ASAP PLS PLS HELP ASAP THANKS
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!