Taking into account the definition of molarity, the concentration of the solution is 0.855
.
<h3>Definition of molarity</h3>
Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.
The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:
![Molarity=\frac{number of moles}{volume}](https://tex.z-dn.net/?f=Molarity%3D%5Cfrac%7Bnumber%20of%20moles%7D%7Bvolume%7D)
Molarity is expressed in units
.
<h3>Molarity of NaCl</h3>
In this case, you have:
- number of moles of NaCl=
1.71 moles (being 58.45 g/mole the molar mass of NaCl) - volume 2 L
Replacing in the definition of molarity:
![Molarity=\frac{1.71 moles}{2 L}](https://tex.z-dn.net/?f=Molarity%3D%5Cfrac%7B1.71%20moles%7D%7B2%20L%7D)
Solving:
Molarity= 0.855 ![\frac{moles}{liter}](https://tex.z-dn.net/?f=%5Cfrac%7Bmoles%7D%7Bliter%7D)
Finally, the concentration of the solution is 0.855
.
Learn more about molarity:
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<u>brainly.com/question/10608366</u>
<u>brainly.com/question/7429224</u>
Answer:
The answer is C. An electrochemical cell.
Explanation:
The aluminum ion react with the sulfide to form aluminum sulfide.
I belevieve the answer is A
For 1.2 mol FeS, 1.8 mol O2, 1.2 mol FeO, 1.2 mol SO2
For 5.2 mol SO2, 5.2 mol FeS, 7.8 mol O2, 5.2 mol FeO
Answer:
The increase in electrons and the increase in the rings or clouds that the electrons are found in
Explanation: