Search found 14 matches
- Thu Oct 28, 2021 11:50 pm
- Forum: Chemistry forum
- Topic: Oxidation Numbers for Sulfur in H2S4
- Replies: 4
- Views: 2469
Re: Oxidation Numbers for Sulfur in H2S4
I see, thank you!
- Thu Oct 28, 2021 10:04 pm
- Forum: Chemistry forum
- Topic: Oxidation Numbers for Sulfur in H2S4
- Replies: 4
- Views: 2469
Oxidation Numbers for Sulfur in H2S4
Hi guys, can someone help me figure out what each of the four Sulfur's oxidation number for H2S4 is? I know H is 1 and S is 6 but I don't get how you find the individual oxidation numbers for Sulfur..
- Sun Mar 28, 2021 2:04 pm
- Forum: Chemistry forum
- Topic: Acid and Bases Help
- Replies: 3
- Views: 1802
Re: Acid and Bases Help
Thanks so much! I probably missed that in the textbook
- Sat Mar 27, 2021 11:04 pm
- Forum: Chemistry forum
- Topic: Acid and Bases Help
- Replies: 3
- Views: 1802
Acid and Bases Help
Can anyone tell me what I'm doing wrong here? For the [H3O+] and [OH-], I'm calculating their pH by simply inserting the given numbers into the -log equation but I feel like that's wrong. How can I find the pH values for those ones? Thanks.
- Wed Mar 10, 2021 11:56 pm
- Forum: Chemistry forum
- Topic: STP using combined gas law.
- Replies: 1
- Views: 1156
STP using combined gas law.
Hi guys so I am asked to calculate the volume of H2 collected at STP using the combined gas law. I have my numbers and all but I am confused on where to put it in the equation. The equation I'm using is V1=P2T1V2/T2P1. Where would I put the STP numbers in? That's the only part I'm confused about. Th...
- Tue Mar 02, 2021 1:19 am
- Forum: Chemistry forum
- Topic: Temperature Changes
- Replies: 2
- Views: 1402
Re: Temperature Changes
Thanks once again
- Tue Mar 02, 2021 1:00 am
- Forum: Chemistry forum
- Topic: Ideal Gas Laws
- Replies: 16
- Views: 5797
Re: Ideal Gas Laws
You guys have been a real help! Thank you
- Mon Mar 01, 2021 10:52 pm
- Forum: Chemistry forum
- Topic: Ideal Gas Laws
- Replies: 16
- Views: 5797
Re: Ideal Gas Laws
Hmm.. I just inserted all the values into the equation V=nRT/P. I think I made a mistake though because I got a different answer to the one I wrote before. My new answer is 0.02746 L. Still wrong..
By the way, how did you get that equation? How did you come up with that thinking?
By the way, how did you get that equation? How did you come up with that thinking?
- Mon Mar 01, 2021 10:24 pm
- Forum: Chemistry forum
- Topic: Ideal Gas Laws
- Replies: 16
- Views: 5797
Re: Ideal Gas Laws
4.50 L x 1 mol He / 22.414 L = 0.200767377 mol (not rounded up)
- Mon Mar 01, 2021 10:07 pm
- Forum: Chemistry forum
- Topic: Temperature Changes
- Replies: 2
- Views: 1402
Temperature Changes
Another question:
A gas canister has the initial pressure of 1.00 atm at 55C then is refrigerated to -10C. What is the new pressure inside the canister?
Which laws am I using here?
A gas canister has the initial pressure of 1.00 atm at 55C then is refrigerated to -10C. What is the new pressure inside the canister?
Which laws am I using here?
- Mon Mar 01, 2021 10:05 pm
- Forum: Chemistry forum
- Topic: Ideal Gas Laws
- Replies: 16
- Views: 5797
Re: Ideal Gas Laws
I got 0.0250 L. But that was incorrect... not sure what I'm doing wrong?
- Mon Mar 01, 2021 1:25 am
- Forum: Chemistry forum
- Topic: Ideal Gas Laws
- Replies: 16
- Views: 5797
Re: Ideal Gas Laws
Oh wow, that makes sense! Thank you!
- Mon Mar 01, 2021 12:35 am
- Forum: Chemistry forum
- Topic: Ideal Gas Laws
- Replies: 16
- Views: 5797
Ideal Gas Laws
Hey guys, I need help with this question. Super confused on it. Here it is: A balloon is inflated to 4.50 L with Helium, at a particular initial temperature and pressure. (It is tied off.) Now, assume that the temperatures and pressures referred to are always those prevailing inside the balloon. The...
- Thu Feb 11, 2021 11:59 pm
- Forum: Chemistry forum
- Topic: chemistry lab help
- Replies: 1
- Views: 1301
chemistry lab help
hi guys, I just need help with one question..
what would happen to my percent yield if the concentration of the CaCl2 solution used in my lab was doubled? originally had 1.00 M. if it was doubled what would my percent yield be? Thanks...!
what would happen to my percent yield if the concentration of the CaCl2 solution used in my lab was doubled? originally had 1.00 M. if it was doubled what would my percent yield be? Thanks...!