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
zzz [600]
3 years ago
7

Oxalic acid can remove rust (Fe2O3) caused by bathtub rings according to the reaction Fe2O3(s) - 6H2C2O4(aq) rightarrow 2Fe(C2O4

)33-(aq) - 3H2O(l) - 6H+(aq) C calculate the number of grams of rust that can be removed by 6.00 times 102 mL of a 0.100 M solution of oxalic acid.
Chemistry
1 answer:
Katena32 [7]3 years ago
5 0

<u>Answer:</u> The mass of rust that can be removed is 1.597 grams

<u>Explanation:</u>

To calculate the number of moles for given molarity, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}}{\text{Volume of solution (in L)}}     .....(1)

Molarity of oxalic acid solution = 0.1255 M

Volume of solution = 6.00\times 10^2mL = 600 mL = 0.600 L    (Conversion factor:  1 L = 1000 mL)

Putting values in equation 1, we get:

0.100M=\frac{\text{Moles of oxalic acid}}{0.600L}\\\\\text{Moles of oxalic acid}=(0.100mol/L\times 0.600L)=0.06mol

For the given chemical reaction:

Fe_2O_3(s)+6H_2C_2O_4(aq.)\rightarrow 2Fe(C_2O_4)_3^{3-}(aq.)+3H_2O(l)+6H^+(aq.)

By Stoichiometry of the reaction:

6 moles of oxalic acid reacts with 1 mole of ferric oxide (rust)

So, 0.06 moles of oxalic acid will react with = \frac{1}{6}\times 0.06=0.01mol of ferric oxide (rust)

To calculate the mass of rust for given number of moles, we use the equation:

\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}

Molar mass of rust (ferric oxide) = 159.7 g/mol

Moles of rust = 0.01 moles

Putting values in above equation, we get:

0.01mol=\frac{\text{Mass of rust}}{159.7g/mol}\\\\\text{Mass of rust}=(0.01mol\times 159.7g/mol)=1.597g

Hence, the mass of rust that can be removed is 1.597 grams

You might be interested in
1b<br>Describe the terms below:<br>2. adiabatic process​
Ugo [173]

Answer:

defined as a process in which mo heat transfer take place

Explanation:

is a process which occurs without transferring heat /mass between the system and it's surrounding.

8 0
3 years ago
Mercury has a density of 13.6 g/mL. How many milliliters of mercury have a mass of 350 g? *
Colt1911 [192]

solution:

density x volume=mass volume x volume

13.6gml x 3.55ml

thus,the object has a mass of 98.3g

7 0
3 years ago
Water fluoridation and cancer risk if you have a concern about fluoride in your drinking water, how do you get more information?
eimsori [14]

The centers for disease control and prevention (CDC) develops recommendations for water fluoridation along with technical requirements for each major compound used.

<h3>What is meant by water fluoridation?</h3>

Almost all water contains some fluoride, but usually not enough to prevent tooth decay. Fluoride can also be added to drinking water supplies as a public health measure for reducing cavities. Water fluoridation is the process of adding fluoride to the water supply so the level reaches approximately 0.7 ppm or 0.7 milligrams of fluoride per liter of water, this is the optimal level for preventing tooth decay.

To learn more about water fluoridation, visit:

brainly.com/question/13292361

#SPJ4

7 0
1 year ago
Frozen ice caps in the Arctic Ocean are composed of?
rjkz [21]
Answer

D a mixture of salt and fresh water
4 0
3 years ago
Read 2 more answers
Pls Help this is my last question on the quiz - Which two types of energies involve changes in atoms or atom rearrangement?
Vera_Pavlovna [14]

Answer:

Sound & Mechanical (i think)

Explanation:

7 0
3 years ago
Other questions:
  • 14. In the lab, an experimenter mixes 75.0 g of water (initially at 30oC) with 83.8 g of a solid metal (initially at 600oC). At
    12·1 answer
  • Why will a reaction occur between calcium oxalate and platinum?
    7·2 answers
  • How do you preform water displacement
    15·1 answer
  • Octane has a density of 0.692 g/ml at 20∘c. how many grams of o2 are required to burn 17.0 gal of c8h18
    6·1 answer
  • How is alchemy different from modern chemistry?
    6·2 answers
  • Bases feel slippery because they remove fats and oils from the surface of our skin.
    9·2 answers
  • Which Anion would have 16 protons?
    10·1 answer
  • Which of the following statement(s) about chemical bonding
    15·1 answer
  • Study the diagram of radioactive decay. Which option identifies what the arrows in the diagram represent? atoms and elements ele
    8·2 answers
  • Which scientific investigation describes a field study?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!