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
kifflom [539]
2 years ago
9

If you assume this reaction is driven to completion because of the large excess of one ion, what is the concentration of [Fe(SCN

)]2+ that would be formed from 6.00 mL of 0.00180 M KSCN 5.00 mL 0.240 M Fe(NO3)3 and 14.00 mL of 0.050 M HNO3.
Question 3 options:

0.240 M

4.32 x 10^-4

0.0480

0.0460 M
Chemistry
1 answer:
viktelen [127]2 years ago
7 0

Answer : The concentration of [Fe(SCN)]^{2+} is, 4.32\times 10^{-4}M

Explanation :

When we assume this reaction is driven to completion because of the large excess of one ion then we are assuming limiting reagent is SCN^- and Fe^{3+} is excess reagent.

First we have to calculate the moles of KSCN.

\text{Moles of }KSCN=\text{Concentration of }KSCN\times \text{Volume of solution}

\text{Moles of }KSCN=0.00180M\times 0.006L=1.08\times 10^{-5}mol

Moles of KSCN = Moles of K^+ = Moles of SCN^- = 1.08\times 10^{-5}mol

Now we have to calculate the concentration of [Fe(SCN)]^{2+}

\text{Concentration of }[Fe(SCN)]^{2+}=\frac{\text{Moles of }[Fe(SCN)]^{2+}}{\text{Volume of solution}}

Total volume of solution = (6.00 + 5.00 + 14.00) = 25.00 mL = 0.025 L

\text{Concentration of }[Fe(SCN)]^{2+}=\frac{1.08\times 10^{-5}mol}{0.025L}=4.32\times 10^{-4}M

Thus, the concentration of [Fe(SCN)]^{2+} is, 4.32\times 10^{-4}M

You might be interested in
The normal boiling point for acetone is 56.5°c. at an elevation of 5300 ft the atmospheric pressure is 630. torr. what would be
Flauer [41]
20.5 because the boiling point should decrease not increase 

7 0
3 years ago
When discussing discordant and harmonious sound waves, which statement is false?
notka56 [123]
When discussing discordant and harmonious sound waves, the statement tat is false is : if the original waves combine to form irregular displacement of air, the sound will be discordant. The fact is, irregular displacement of air does not guarantee sound discordance

hope this helps
3 0
3 years ago
In the cathode ray tube experiment, J. J. Thomson passed an electric current through different gases inside a cathode ray tube i
Ber [7]

It showed that atoms can be divided into smaller parts.

It showed that all atoms contain electrons.

Explanation:

The experiment carried out by J.J Thomson on the gas discharge tube by passing electric current through a tube filled with many different gases provided a good insight into the structure of an atom.

This experiment led to the development of the plum pudding model of the atom.

  • Cathode rays and it properties were discovered in this set up.
  • It furnished the scientific community with evidences that atoms can be divided into smaller parts.
  • Since atoms now contain some subatomic particles, they can be broken down in like manner into further bits.
  • The cathode rays which were later termed electrons became a fundamental particles known for every atom.

learn more:

Rutherford's model of the atom brainly.com/question/1859083

#learnwithBrainly

6 0
3 years ago
Read 2 more answers
Who preformed the oil drop experiment
Ivan

Robert A. Millikan and Harvey Fletcher performed the oil drop experiment.

5 0
2 years ago
Read 2 more answers
The atomic number is equal to
Yuri [45]
1. “what forms of energy conversions occur during the process of photosynthesis? (How does energy transform?) 2. What is missing from the food web but is essential to maintain equilibrium? A. Soil B.water C. Decomposers D. Oxygen
3 0
3 years ago
Other questions:
  • Describe how iron and sulfur can be an element, mixture, and a compound.
    15·1 answer
  • An ion has a charge of 2- and 18 electrons.
    14·1 answer
  • Identify balance chemical equation from the following
    10·1 answer
  • Approximately how many years does it take for one centimeter of soil to form? *
    13·1 answer
  • Explain what it means by a balanced chemical equation
    12·1 answer
  • A buffer solution is prepared from equal volumes of 0.200 M acetic acid and 0.600 M sodium acetate. Use 1.80 x 10−5 as Ka for ac
    8·1 answer
  • En un recipiente cerrado a 25°C disponemos de un gas sometido a una presión de 250.000 Pa. Luego, sin que cambie el volumen, con
    13·1 answer
  • GIVE REASON: <br>1.Trees catches fire<br>2.We cannot put off fire due to electric shock by water​
    11·2 answers
  • this is due tonight and i need some help w/ it! how do mass and distance affect the strength of the force of gravity? -btw i nee
    8·1 answer
  • (12pts) Separation of Copper(II) and Bismuth(III) Ions Procedure Number and Ion Test Reagent or Technique Evidence of Chemical C
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!