How to convert 300 mL/hr to ML/min?

I don't know what ML/hr or ML/min means

2 Answers
Mar 13, 2018

300 \ "mL/hr"=5 \ "mL/min"

Explanation:

Well, if you have a rate of 300 \ "mL/hr", it means that something is probably flowing (usually a liquid) at a rate of 300 milliliters per hour.

That rate can also mean that a liquid is filling up a container at a rate of 300 milliliters per hour.

Anyways, to convert from milliliters per hour to milliliters per minute, we just divide by 60, since 1 \ "hr"=60 \ "min".

So, we got:

300 \ "mL/hr"

=300 \ "mL/"60 \ "min"

=5 \ "mL/min"

Mar 13, 2018

I'll show you below.

Explanation:

I remember seeing my HS chem teacher do something like this in monotone voice. "This cancels with this, and this cancels with this", on and on, and I was like, "wait, what?!"

First off, I'm going to assume ML is megaliters. I think that is right, but rarely use that unit.

We are going to get mL into ML (i'll go through L), and then hours into minutes.

300"mL"/"hr"xx("1L"/"1000mL")xx("1ML"/(10^6L))
This gets us into "ML"/"hr"
because if you just do the units, you've got:
"mL*L*ML"/"hr*mL*L"
and this simplifies to "ML"/"hr" = 3xx10^-7 "ML"/"hr"

You need it per minute, so we'll sort that out down here.
3xx10^-7 "ML"/"hr"xx"1hr"/"60min" = 5xx10^-9 "ML"/"min"

We could have done the hour to minute all in one line:
300"mL"/"hr"xx("1L"/"1000mL")xx("1ML"/(10^6L))xx"1hr"/"60min",
but I like to break them up.

Hope that helps.