Units - L or mL?  [ENDORSED]

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Naqiyah Qadir 1I
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Units - L or mL?

Postby Naqiyah Qadir 1I » Thu Apr 12, 2018 12:15 pm

I know the standard unit to use is Liters, but if the question gives you units in milliliters should we give our answer back in it? Thanks.

Isabel Jabara 1C
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Re: Units - L or mL?

Postby Isabel Jabara 1C » Thu Apr 12, 2018 12:18 pm

If you are giving the answer in mL, make sure you label it, but it is usually better to give your answer in Liters.

Sara Veerman-1H
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Re: Units - L or mL?

Postby Sara Veerman-1H » Thu Apr 12, 2018 12:21 pm

I believe it is preferred to give an answer in Liters rather than mL unless asked otherwise

princessturner1G
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Re: Units - L or mL?

Postby princessturner1G » Thu Apr 12, 2018 12:59 pm

The answer usually should be in L. If it is given to you in mL, it is usually easier to multiply it by 10^-3.

kendallbottrell
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Re: Units - L or mL?

Postby kendallbottrell » Thu Apr 12, 2018 5:33 pm

When you're using the conc=moles/vol, you need to use liters. But when you you're using the M1V1=M2V2 equation, you just need to keep all of the units the same, so essentially you can use mL instead of L.

204917020
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Re: Units - L or mL?

Postby 204917020 » Sun Apr 15, 2018 11:06 pm

As long as your answer is correct and you specify which units your answer is in (mL or L) I don't think it matters what you put your answer in unless they specify that they want your answer in specific units.

Mohamad Farhat 1L
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Re: Units - L or mL?

Postby Mohamad Farhat 1L » Sun Apr 15, 2018 11:09 pm

It just depends on what they are asking for. Usually it is in L. But if it is in ml then switch to L.

Chem_Mod
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Re: Units - L or mL?  [ENDORSED]

Postby Chem_Mod » Mon Apr 16, 2018 12:24 pm

It does not matter as long as you have the correct units and are specifying the correct amount. If the question says to specify in terms of certain units, you must have those units.

Maria Zamarripa 1L
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Re: Units - L or mL?

Postby Maria Zamarripa 1L » Sun Apr 22, 2018 5:45 pm

If it gives you are given milliliters then you change it to liters and I believe you keep the final answer in Liters too.

yazminedesan1F
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Re: Units - L or mL?

Postby yazminedesan1F » Sun Apr 22, 2018 5:49 pm

I would change it to liters to keep it all consistent

Shione Nakahara 1F
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Re: Units - L or mL?

Postby Shione Nakahara 1F » Sun Apr 22, 2018 7:18 pm

Unless the question specifies otherwise, I would do liters

ElizabethP1L
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Re: Units - L or mL?

Postby ElizabethP1L » Sun Apr 22, 2018 7:43 pm

L is definitely more preferred. all the solutions in the solutions manual convert from mL to L unless the problem states that the answer should be in mL.

Maria Zamarripa 1L
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Re: Units - L or mL?

Postby Maria Zamarripa 1L » Thu May 17, 2018 11:06 am

I believe that once you convert mL to L at the beginning of the problem, you should keep it as Liters at the end of the problem.

Jaedyn_Birchmier3F
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Re: Units - L or mL?

Postby Jaedyn_Birchmier3F » Mon Oct 01, 2018 5:05 pm

This question was just asked by someone today in class. Professor Lavelle stated that the answer can be given in either liter or mililiters unless it is specifically specified to give it in a certain unit.

Matthew Mar 1J
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Re: Units - L or mL?

Postby Matthew Mar 1J » Tue Oct 02, 2018 10:01 am

It might be important to consider how the units fit with the answer itself too. If you have a minuscule amount, it's probably better to write the answer in mL to avoid dealing with scientific notation and all that.
Plus, it's more practical for a real life lab situation. You generally wouldn't tell someone to measure out 2.0x10^-3 L, while 2.0 mL would be a lot easier to communicate in a lab setting. Of course, we're just in a classroom now, so It doesn't really make much of a difference.
Last edited by Matthew Mar 1J on Wed Oct 03, 2018 3:21 pm, edited 1 time in total.

madisondesilva1c
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Re: Units - L or mL?

Postby madisondesilva1c » Wed Oct 03, 2018 12:31 pm

In order to compute dilations correctly, you will need to convert the volume of the given quantities to Liters, however if the known volumes in the question are given in milliliters then I would convert back to the unit of mL at the end of the answer. This is the format that the online Video Module Post / Pre Assessment Questions were formatted also.


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