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Chemistry Forums for Students => Inorganic Chemistry Forum => Topic started by: CrazyGoat on January 09, 2021, 08:19:50 AM

Title: how many ml of co2 is 1 gr?
Post by: CrazyGoat 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...

Title: Re: how many ml of co2 is 1 gr?
Post by: AWK on January 09, 2021, 08:31:11 AM

Have you heard about the ideal gas equation of state?

Title: Re: how many ml of co2 is 1 gr?
Post by: CrazyGoat on January 09, 2021, 09:07:41 AM

I could study it, but I was expecting to receive a simple answer.

Title: Re: how many ml of co2 is 1 gr?
Post by: CrazyGoat on January 09, 2021, 09:08:36 AM

Im prety sure it will last days at that low rate anyways.

Title: Re: how many ml of co2 is 1 gr?
Post by: Borek on January 09, 2021, 09:18:43 AM

Quote from: CrazyGoat on January 09, 2021, 09:07:41 AM

I could study it, but I was expecting to receive a simple answer.

Please read the forum rules (https://www.chemicalforums.com/index.php?topic=65859.0). That's not how the forum works.

Title: Re: how many ml of co2 is 1 gr?
Post by: CrazyGoat 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!!

Title: Re: how many ml of co2 is 1 gr?
Post by: AWK on January 09, 2021, 11:06:14 AM

Check your calculations.

Title: Re: how many ml of co2 is 1 gr?
Post by: CrazyGoat on January 09, 2021, 12:04:05 PM

 
 Hahaha, thank you!! I will .

Title: Re: how many ml of co2 is 1 gr?
Post by: CrazyGoat 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.

you made me sweat... 

Title: Re: how many ml of co2 is 1 gr?
Post by: AWK 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.

Title: Re: how many ml of co2 is 1 gr?
Post by: CrazyGoat on January 09, 2021, 03:42:16 PM

thank you very much!! I couldn't tell you now what calculations I did.