Dilution Problems, Chemistry, Molarity & Concentration Examples, Formula & Equations

This chemistry video tutorial explains how to solve common dilution problems using a simple formula using concentration or molarity with volume. This video also provides the equations needed to calculate the concentration of a solution after evaporation and after mixing two solutions with the same substance and with different substances. This video contains plenty of examples and practice problems.
Stoichiometry Practice Test:
• How To Solve Stoichiom...
Solute, Solvent, & Solution:
• Solute, Solvent, & Sol...
Strong & Weak Electrolytes:
• Identifying Strong Ele...
Molarity Practice Problems:
• Molarity Practice Prob...
Ion Concentration In Solutions:
• Ion Concentration in S...
Dilution Problems:
• Dilution Problems, Che...
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Types of Chemical Reactions:
• Types of Chemical Reac...
Solubility Rules:
• Solubility Rules
Predicting The Products of Reactions:
• Predicting The Product...
Activity Series of Metals:
• Activity Series of Met...
Will This Reaction Occur?
• Chemistry - Will The R...
Predicting Products of SR Reactions:
• Predicting Products of...
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Double Replacement Reactions:
• Introduction to Double...
Net Ionic Equations:
• Precipitation Reaction...
Writing Chemical Equations From Words:
• How To Write Chemical ...
Solution Stoichiometry:
• Solution Stoichiometry...
Molarity & Dilution Problems:
• Molarity Dilution Prob...
Acid Base Neutralization Reactions:
• Acid Base Neutralizati...
____________________________________
Acid Base Titration Problems:
• Acid Base Titration Pr...
Mixture Problems:
• Mixture Problems
Calculating Oxidation Numbers:
• How To Calculate Oxida...
Oxidation and Reduction Reactions:
• Oxidation and Reductio...
Balancing Redox Reactions:
• Half Reaction Method, ...
Ideal Gas Law Problems:
• Ideal Gas Law Practice...
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Final Exams and Video Playlists:
www.video-tuto...
Full-Length Videos and Worksheets:
/ collections
Stoichiometry Formula Sheet:
bit.ly/3Z7uMw8

[@TheOrganicChemistryTutor]

Stoichiometry Formula Sheet: bit.ly/3Z7uMw8 Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Videos & Worksheets: www.patreon.com/MathScienceTutor/collections General Chemistry 1 Review: bit.ly/3DNmZqb PDF Worksheet - 160 Questions: bit.ly/37SVLn6

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Exactly. I was having a hard time understanding this in class...

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[@georgesadler7830]

Professor Organic Chemistry Tutor, thank you for an exceptional video/lecture on How to solve common Dilution problems using simple formula Concentration or Molarity with Volume in AP/General Chemistry. The equation that is used to solve each problem in the video is simple to follow, however, for more difficult problems the equation that is used changes with each problem. Word problems in Chemistry are problematic from start to finish. This is an error free video/lecture on KZbin TV with the Organic Chemistry Tutor.

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OMG, i'm in tears of gratitude. I finally have the stepping stone I need to understand dilution concept. Sending deepest gratitude!!💕

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The first minute of the video helped me understand something I couldn’t learn in class for weeks!

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For the equation, instead of M we use C (aka concentration)

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[@mohfa1806]

Hello , and thank you for your great efucational videos... i have a question please : when diluting a weak acid i noticed in the books that they use the dilution formula :C1V1=C2V2 based on the fact that the number of moles will stay constant , however for weak acid we know that upon adding water the dissociation of the weak acid increases to maintain balance and hence the number of moles of the weak acid decreases , so based on that how the dilution formula still applies?...thank you in advance.

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[@dziedzorm4147]

Hi Sir, Thank you for this informative presentation. I need your help on this: I prepared 3 mM stock solution of pyrene by dissolving 60.0675 mg of granulated pyrene in 100 ml of acetone [Molar Mass of pyrene = 202.25 g/mol]. I want to report this prepared concentration in μg/L. Can you kindly assist me with the conversion? Will be grateful for your response.

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Thank you , super rad videos. In the end, with the CaCl2 there was mM cuz of mL instead of L. The answer was 0.8 M of concentration . What happened to the mille? Thanks again

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Great video, thank you. I want to prepare a 100 ml 25% v/v glutaraldehyde solution and the glutaraldehyde available is 50% wt% glutaraldehyde in water, MW= 100.12 g/mol, d= 1.106 g/ml. Would I be correct for using C1V1= C2V2. The answer I get is 50 ml of 50% glutaraldehyde in 100 ml to give 25% v/v glutaraldehyde. Thanks

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Problem 5 was very well explained.

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Great video though I think you should be showing the sig figs and units as teachers will take off marks if that is missing.

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[@SM-qn7sr]

For the last problem, I find the moles of each solution and add them up then divide by the sum of the volume in L and I got the same answer

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In the last problem I first calculated the total volume of the new solution and then used it to find the concentration of each one of the first two solutions and then added the two concentrations to find the final concentration and it worked. Is this right or not?

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[@Hackersuncovered]

If you added more moles of solute instead of solvent, wouldn't take make the MV=k equation false since concentration would go up while the solution is increasing

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