Dilution Calculation

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Dilution Calculation

Postby emaad_3H » Fri Oct 04, 2019 11:18 am

If I am using the M1V1=M2V2 dilution equation and I am given M1, M2, and V2, and the final answer is asked to be in milliliters, do I still have to convert the final volume into liters to get V1 in terms of liters or can I leave it in milliliters and get my answer in millimeters?

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Re: Dilution Calculation

Postby SMIYAZAKI_1B » Fri Oct 04, 2019 11:23 am

I am assuming that you are asking if you can just leave the Volume of the one as milliliters? If that's the case, yes you can. Think of the units that are canceling out. If M1 and M2 has the same unit, it cancels out together. As long as you remind yourself that you are using the same units for M1 and M2 or V1 and V2, you can use whichever unit. Just make sure to remember which unit you end up with as well.

Sartaj Bal 1J
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Re: Dilution Calculation

Postby Sartaj Bal 1J » Fri Oct 04, 2019 11:23 am

If the V2 value provided is in milliliters, then the V1 could be directly solved for in milliliters because the units match up. If the V2 is in liters, you could either convert it to milliliters before solving for V1 or solve for the value of V1 in liters and then convert it to milliliters. Hope this helps!

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Re: Dilution Calculation

Postby Chem_Mod » Fri Oct 04, 2019 11:24 am

Because the units will cancel out when you divide the Molarity over, you can leave it in mL and you should still get the right answer and then you wouldn't have to convert your final answer.

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Re: Dilution Calculation

Postby zachary_nhem_4I » Fri Oct 04, 2019 11:25 am

If the question wants the final answer in milliliters, then there is no need to convert anything into liters. However, if the measurement is given in liters, the you would need to convert that into milliliters by using the conversion: 1 milliliter=0.001 liters.

Gwen Casillan Dis 1I
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Re: Dilution Calculation

Postby Gwen Casillan Dis 1I » Fri Oct 04, 2019 11:38 am

Yes, you could technically leave the volume in mL since the molarity would cancel, but remember to keep in mind that otherwise, it would be wiser to leave it in liters.

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