Search found 16 matches
- Sat Nov 07, 2020 3:43 am
- Forum: Chemistry forum
- Topic: Chemical kinetics
- Replies: 0
- Views: 7510
Chemical kinetics
Hello, I could ask to check the kinetic equations, I added the reaction mechanism using a picture. The mechanism was performed in 25 ml of n heptane to which one gram of catalyst was added. dcA/dt=-(k1+k2)*cA dcB/dt=-(k3+k4)*cB dcC/dt=-k5*cC dcD/dt=k1*cA-k6*cD dcE/dt=k2*cA+k3*cB-k7*cE-k8*cE-k9*cE dc...
- Thu Nov 05, 2020 3:57 am
- Forum: Chemistry forum
- Topic: Mercury porosimetry
- Replies: 2
- Views: 1585
Re: Mercury porosimetry
Thank you.
I done it, but i dont what else
I done it, but i dont what else
- Wed Nov 04, 2020 12:53 pm
- Forum: Chemistry forum
- Topic: Mercury porosimetry
- Replies: 2
- Views: 1585
Mercury porosimetry
Hello, i have problem to find dV/dp, when I have this task: Find the distribution function of the pore volume Dv (r) in the sample as a function of the pore radius based on the measurement made on the mercury porosimeter. p -pressure (psia) Volume(cm3) 50 0,085 200 0,142 500 0,251 1000 0,33 5000 0,4...
- Tue Apr 28, 2020 11:18 am
- Forum: Chemistry forum
- Topic: Chemical calculation
- Replies: 13
- Views: 6402
- Tue Apr 28, 2020 11:14 am
- Forum: Chemistry forum
- Topic: Chemical calculation
- Replies: 13
- Views: 6402
- Tue Apr 28, 2020 10:53 am
- Forum: Chemistry forum
- Topic: Chemical calculation
- Replies: 13
- Views: 6402
- Tue Apr 28, 2020 10:51 am
- Forum: Chemistry forum
- Topic: Chemical calculation
- Replies: 13
- Views: 6402
- Tue Apr 28, 2020 10:14 am
- Forum: Chemistry forum
- Topic: Chemical calculation
- Replies: 13
- Views: 6402
Ok, when i got it right. 12mg............M(Fe3+) = 55,845 g/mol x...................M(Fe2(SO4)3) = 399,88 g/mol x= 0,085mg Fe2(SO4)3 80,7 mg..............M(Ti4+) = 47,867 g/mol y........................M(TiOSO4) = 159,94 g/mol y= 0,29 mg. So, in 100ml H2o i have to dissolve 0,29 mg TiOSO4 ? but, if ...
- Tue Apr 28, 2020 9:33 am
- Forum: Chemistry forum
- Topic: Chemical calculation
- Replies: 13
- Views: 6402
- Tue Apr 28, 2020 9:32 am
- Forum: Chemistry forum
- Topic: Chemical calculation
- Replies: 13
- Views: 6402
In a typical process, the defined amount of TiOSO4 (table 1) was dissolved in 100 ml of hot distilled water acidified with 10 ml 98% H2SO4. The pelluid liquid was diluted in 4 L of distilled water, a definied amount of iron(III) sulphate hydrate Fe2(SO4)3*xH2O was added and the solution was mixed wi...
- Tue Apr 28, 2020 6:53 am
- Forum: Chemistry forum
- Topic: Chemical calculation
- Replies: 13
- Views: 6402
Chemical calculation
http://dx.doi.org/10.1016/j.apsusc.2015.02.181 Hello, can i have a question, please. Article above part Experiment, I have problem to calculate amount of TiOSO4 anf Fe2(SO4)3.xH2O. I dont understatnd, how did they mean this in table 1. i started with TiOSO4 w(tioSO4) = m(TiOSO4)/(m(tioso4)+m (h2o) m...
- Sat Apr 25, 2020 9:51 am
- Forum: Chemistry forum
- Topic: Anorganic chemistry
- Replies: 5
- Views: 4111
- Fri Apr 24, 2020 1:38 pm
- Forum: Chemistry forum
- Topic: Anorganic chemistry
- Replies: 5
- Views: 4111
- Fri Apr 24, 2020 9:59 am
- Forum: Chemistry forum
- Topic: Anorganic chemistry
- Replies: 5
- Views: 4111
Anorganic chemistry
Why boric acid is added to water vapor when removing hcl and cl2?
Thank you so much
Thank you so much
- Mon Mar 23, 2020 4:06 am
- Forum: Chemistry forum
- Topic: material balance
- Replies: 3
- Views: 2674