What does dilution mean in a chemistry problem?

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Radha Patel 4I
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What does dilution mean in a chemistry problem?

Postby Radha Patel 4I » Sat Jun 29, 2019 9:21 pm

Does dilution mean you are adding or subtracting the amount of liters in a solution ?

Chem_Mod
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Re: What does dilution mean in a chemistry problem?

Postby Chem_Mod » Sun Jun 30, 2019 9:13 am

Dilution means you are decreasing the concentration of the solution by adding more solvent. So, it would generally mean increasing the number of L in the solution.

somyapanchal1D
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Re: What does dilution mean in a chemistry problem?

Postby somyapanchal1D » Sun Jun 30, 2019 2:18 pm

Dilution is when you are adding more solvent to a solution which contains solute and already some solvent. More often than not, the solvent that is being added is distilled water. A dilution leads to an increase in liters of solution and decreases the molarity of the solution.

Yen Ho Chou 1D
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Re: What does dilution mean in a chemistry problem?

Postby Yen Ho Chou 1D » Sun Jun 30, 2019 4:44 pm

Dilution is when you make something less concentrated

Rebecca Epner 4A
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Re: What does dilution mean in a chemistry problem?

Postby Rebecca Epner 4A » Mon Sep 30, 2019 9:09 pm

All of the above are true. Just be sure to remember that dilution does NOT change the moles of solute in the solution, only the overall volume

Chetas Holagunda 3H
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Re: What does dilution mean in a chemistry problem?

Postby Chetas Holagunda 3H » Mon Sep 30, 2019 10:22 pm

I would suggest don't think of dilution as adding or taking out liters in a solution, but rather as decreasing the concentration of a solution while keeping the amount of solute the same.

905385366
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Re: What does dilution mean in a chemistry problem?

Postby 905385366 » Mon Sep 30, 2019 10:24 pm

Yes! Dilution would be adding more solvent (usually an aqueous solution such as water) while keeping the solute amount the same, therefore, changing the molarity of the solution.

Michelle Xie 2B
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Re: What does dilution mean in a chemistry problem?

Postby Michelle Xie 2B » Tue Oct 01, 2019 11:56 am

Dilution is when you add more solvent, decreasing the concentration of the overall solution since the amount of solute remains the same.

Kayli Choy 2F
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Re: What does dilution mean in a chemistry problem?

Postby Kayli Choy 2F » Tue Oct 01, 2019 12:45 pm

Additionally, since the number of moles in dilutions remains the same, let n = moles
ni = nf
and since Molarity = n / V (where V = volume in Liters)
you can say that
MiVi = MfVf

This is the main equation used in dilution problems, where V is volume of the total solution. From this equation, you can find initial concentration of solute, initial volume of solution, final concentration of diluted solution, or final volume of diluted solution.


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