Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: having a problem defining what mol% means
SunriseSunset
Hazard to Self
**




Posts: 82
Registered: 9-6-2015
Location: USA
Member Is Offline

Mood: No Mood

sad.gif posted on 25-9-2015 at 14:36
having a problem defining what mol% means


Reaction conditions: reagentA (1.0 mmol), reagentB (3.0 mmol), K3PO4 ·3H2O (3
equiv), CuI (10 mol %) in DMSO at 110 °C for 20 h.

If the molar mass of reagentA was 150g / mol
And the molar mass of reagentB was 100g / mol

How much of the catalyst CuI (10 mol%) in DMSO should be used for this reaction? :(

And what does the K3PO4 ·3H2O (3
equiv) mean?

[Edited on 25-9-2015 by SunriseSunset]

[Edited on 25-9-2015 by SunriseSunset]




Why do chemists call helium, curium and barium the medical elements?
because if you cant helium or curium, you barium! - Heimerdinger
View user's profile View All Posts By User
DraconicAcid
International Hazard
*****




Posts: 4334
Registered: 1-2-2013
Location: The tiniest college campus ever....
Member Is Offline

Mood: Semi-victorious.

[*] posted on 25-9-2015 at 14:41


Ten mol % CuI means that you add 0.1 mol CuI as a catalyst for every 1.0 mol of reagent A. 3 equiv. means that you add 3 mol potassium phosphate trihydrate for every 1 mol of reagent A.

What, pray tell, is reagent A that has a molar mass of 1.5 g/mol? H1.5?




Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
View user's profile View All Posts By User
SunriseSunset
Hazard to Self
**




Posts: 82
Registered: 9-6-2015
Location: USA
Member Is Offline

Mood: No Mood

[*] posted on 25-9-2015 at 14:47


No lol it isn't H1.5 :\
However, this was very helpful thank you!




Why do chemists call helium, curium and barium the medical elements?
because if you cant helium or curium, you barium! - Heimerdinger
View user's profile View All Posts By User
aga
Forum Drunkard
*****




Posts: 7030
Registered: 25-3-2014
Member Is Offline


[*] posted on 25-9-2015 at 14:52


Please try to find things before bleating.

Attachment: Moles and Molarity.pdf (61kB)
This file has been downloaded 290 times




View user's profile View All Posts By User

  Go To Top