Search found 739 matches

by ChenBeier
Sun Apr 18, 2021 12:18 am
Forum: Chemistry forum
Topic: acid base titration
Replies: 1
Views: 64

Re: acid base titration

Google how to calculate pH of ammonium chloride and sodium acetate.

https://www.google.com/search?q=ph%20am ... irefox-b-m
by ChenBeier
Sat Apr 17, 2021 6:14 am
Forum: Chemistry forum
Topic: Chemistry
Replies: 1
Views: 64

Re: Chemistry

The amount of HNO3 is not given. So not possible to calculate.

1. Develop the chemical equation, what is the product?
2. Read how much mole Al2O3 correspond to that product
3. How many mole of HNO3 you need?
4. If amount of HNO3 given then you can calculate the waste by difference.
by ChenBeier
Sat Apr 17, 2021 3:25 am
Forum: Chemistry forum
Topic: What happens when you mix Hypochlorous Acid and Vinegar?
Replies: 3
Views: 96

Re: What happens when you mix Hypochlorous Acid and Vinegar?

To add other acid to HOCl it will change pH. The HOCl get more aggressive and releasing Oxygen, in small amounts also Chlorine. The smell is similar to swimmingpool water.
by ChenBeier
Fri Apr 16, 2021 8:22 am
Forum: Chemistry forum
Topic: Help me please
Replies: 1
Views: 119

Re: Help me please

The second is NaH2PO4 + NaOH => Na2HPO4 + H2O pk2 7.2
by ChenBeier
Thu Apr 15, 2021 9:38 am
Forum: Chemistry forum
Topic: Help me please =D
Replies: 2
Views: 94

Re: Help me please =D

Check here for the chloroderivate https://www.google.com/search?client=firefox-b-m&sxsrf=ALeKk03kP5ZoIuTPxyU0FzB8RADWLJf8uA:1618504620168&ei=rGt4YOf2CdKckwW8iq3ACw&q=newman+projektion+2+Chlorobutane&tbm=isch&sa=X&ved=2ahUKEwjn_M7H14DwAhVSzqQKHTxFC7gQ7Al6BAgBEAI&biw=680&am...
by ChenBeier
Thu Apr 15, 2021 8:33 am
Forum: Chemistry forum
Topic: mystery substance
Replies: 6
Views: 165

Re: mystery substance

NO. Dont use the solver without knowledge what is going on. The main reaction is the redox reaction Al and HNO3 HNO3 + 3 H+ + 3e- => NO + 2 H2O Reduction 2 Al + 3 H2O => Al2O3 + 6 H+ + 6 e- Oxidation 2 Al + 2 HNO3 => Al2O3 + 2 NO + H2O summery The oxid is able to react with HF or CH3COOH.
by ChenBeier
Thu Apr 15, 2021 4:28 am
Forum: Chemistry forum
Topic: Question
Replies: 3
Views: 85

Re: Question

I was talking about the substites at C. Not about the number of chiral centers. Yes it has 6 centers.
by ChenBeier
Thu Apr 15, 2021 4:25 am
Forum: Chemistry forum
Topic: mystery substance
Replies: 6
Views: 165

Re: mystery substance

Oxidation of Aluminium, will create Aluminium oxide by nitric acid and Aluminium flouride by hydrogen flouride, Aluminium acetate is minor from acetic acid.
by ChenBeier
Wed Apr 14, 2021 11:40 pm
Forum: Chemistry forum
Topic: OrgChem
Replies: 2
Views: 77

Re: OrgChem

I would say on the 6-ring. 2 nitrogen and two oxygen deliver electrons.
by ChenBeier
Wed Apr 14, 2021 11:36 pm
Forum: Chemistry forum
Topic: Question
Replies: 3
Views: 85

Re: Question

If you have 4 different substitutes at one C, then this C ichiral.
by ChenBeier
Wed Apr 14, 2021 10:35 am
Forum: Chemistry forum
Topic: Coordination compound
Replies: 7
Views: 157

Re: Coordination compound

Sorry you have realy no idea. KAl(SO4)2 => K+ + Al 3+ + 2 SO4 2- We have two cathion and one type of anion. Means double salt. K4[Fe(CN)6] => 4 K+ + [Fe(CN)6] 4- We have only 1 type cathion and one type anion. It is similar NaCl => Na+ + Cl- so no double salt. Additional the complex what you have sh...
by ChenBeier
Wed Apr 14, 2021 5:12 am
Forum: Chemistry forum
Topic: Coordination compound
Replies: 7
Views: 157

Re: Coordination compound

No that is not the item we looking for. What happens if you dissolve the pottasiumferrocyanide in comparison of the potassiumaluminiumsulfate.
Think to the headline.
Write the equation in ionic form.
by ChenBeier
Wed Apr 14, 2021 12:36 am
Forum: Chemistry forum
Topic: Coordination compound
Replies: 7
Views: 157

Re: Coordination compound

Yes. Also can explain in this way. If compound is dissolved in water you can find potassium, aluminium and sulfat ions.
What is difference to K4[Fe(CN)6]. What will you find.
by ChenBeier
Tue Apr 13, 2021 8:21 am
Forum: Chemistry forum
Topic: Coordination compound
Replies: 7
Views: 157

Re: Coordination compound

Only a. Explain why please?
by ChenBeier
Tue Apr 13, 2021 6:53 am
Forum: Chemistry forum
Topic: Please help me
Replies: 1
Views: 107

Re: Please help me

Same answer for head line. Test one, what do you determine with BaCl2 normaly. [1] should be clear [2] can be several. Test two, which base is volatile? What does Silverion with chloride. Basic knowledge, precipitate [3]. What does the precipitate with this special base. Aluminium and base does what...