January 23, 2021, 08:43:36 PM
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### Topic: how many ml of co2 is 1 gr?  (Read 318 times)

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#### CrazyGoat

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##### how many ml of co2 is 1 gr?
« on: January 09, 2021, 08:19:50 AM »
I know water is 1:1, but I am tired and I can not find how many ml of co2 is 1 gr of co2.
The reason I ask this question is that I have to insert a flowmeter into a co2 cylinder and let it run for two days at a flow rate of 1 ml per minute, The cylinder is 2 kg of co2 and I don't know if will last that long. yes I M THAT STUPID. I am expecting a gr of co2 been a ton of ml but...

#### AWK

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##### Re: how many ml of co2 is 1 gr?
« Reply #1 on: January 09, 2021, 08:31:11 AM »
Have you heard about the ideal gas equation of state?
AWK

#### CrazyGoat

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##### Re: how many ml of co2 is 1 gr?
« Reply #2 on: January 09, 2021, 09:07:41 AM »
I could study it, but I was expecting to receive a simple answer.

#### CrazyGoat

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##### Re: how many ml of co2 is 1 gr?
« Reply #3 on: January 09, 2021, 09:08:36 AM »
Im prety sure it will last days at that low rate anyways.

#### Borek

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##### Re: how many ml of co2 is 1 gr?
« Reply #4 on: January 09, 2021, 09:18:43 AM »
I could study it, but I was expecting to receive a simple answer.

ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

#### CrazyGoat

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##### Re: how many ml of co2 is 1 gr?
« Reply #5 on: January 09, 2021, 10:55:42 AM »

dammit!! 1 milliliter of CO2 weighs 0.68 grams. I was expecting much less!! Thank you for your answers, you saved my life!!

#### AWK

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##### Re: how many ml of co2 is 1 gr?
« Reply #6 on: January 09, 2021, 11:06:14 AM »
AWK

#### CrazyGoat

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##### Re: how many ml of co2 is 1 gr?
« Reply #7 on: January 09, 2021, 12:04:05 PM »

Hahaha, thank you!! I will .

#### CrazyGoat

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##### Re: how many ml of co2 is 1 gr?
« Reply #8 on: January 09, 2021, 01:06:49 PM »

Well... now I think that in my 2 kg cylinder at 55 bar at ambient temperature (fabricant specs) (it doesn't specify temp) let's say 21 grades
I have 20210 ml. so I shut I could expect 14 days of use at 10 ml per minute.

#### AWK

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##### Re: how many ml of co2 is 1 gr?
« Reply #9 on: January 09, 2021, 03:27:10 PM »
What are you actually calculating? 2 kg of CO2 is approximately 45 moles, which under STP conditions gives over 1000 L of gas.
AWK

#### CrazyGoat

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##### Re: how many ml of co2 is 1 gr?
« Reply #10 on: January 09, 2021, 03:42:16 PM »
thank you very much!! I couldn't tell you now what calculations I did.