Excess means there is enough phosphoric acid.
First develop the chemical equation.
Then calculate the mol of zincphosphate .
Check is enough zinc chloride available.
From zinc phosphate calculate back how much phosphoric is needed.
Calculate with the yield.
Search found 1564 matches
- Thu Apr 01, 2021 12:18 am
- Forum: Chemistry forum
- Topic: Me podrian ayudar
- Replies: 5
- Views: 2086
- Wed Mar 31, 2021 11:29 pm
- Forum: Chemistry forum
- Topic: Me podrian ayudar
- Replies: 5
- Views: 2086
Re: Me podrian ayudar
What is your own work. Where do you have problems.
- Wed Mar 31, 2021 1:06 pm
- Forum: Chemistry forum
- Topic: help 2
- Replies: 1
- Views: 1533
Re: help 2
Convert the AgCl to mol , read the mol of KCl and convert back to mass of KCl.
Compare the with crued product.
Compare the with crued product.
- Wed Mar 31, 2021 1:04 pm
- Forum: Chemistry forum
- Topic: reactions
- Replies: 1
- Views: 1464
Re: reactions
Calculate the mol of BaCO3 , how much CO2 it correspond. Convert this to the volume . By using molar volume or the ideal gas equation.
- Wed Mar 31, 2021 1:02 pm
- Forum: Chemistry forum
- Topic: concentration
- Replies: 1
- Views: 1401
Re: concentration
The reaction equation please submit.
Calculate the mole in the 16 ml. Same like in the other exercise.
According the reaction equation read the mol of NaOH and then calculate it with the volume of 25 ml
Calculate the mole in the 16 ml. Same like in the other exercise.
According the reaction equation read the mol of NaOH and then calculate it with the volume of 25 ml
- Wed Mar 31, 2021 12:58 pm
- Forum: Chemistry forum
- Topic: limiting
- Replies: 1
- Views: 1388
Re: limiting
You have the ratio 2: 5: 6
Convert each 15 g to the mol by using molar mass
Compare the ratio. The lowest number is the limiting reagent.
Convert each 15 g to the mol by using molar mass
Compare the ratio. The lowest number is the limiting reagent.
- Wed Mar 31, 2021 12:55 pm
- Forum: Chemistry forum
- Topic: help
- Replies: 1
- Views: 1404
Re: help
Calculate how many mol BaCl2 you have in 6,5 ml.
0,1 mol =1 l is equal to x mol in 6,5 ml.
The result convert to chloride.
0,1 mol =1 l is equal to x mol in 6,5 ml.
The result convert to chloride.
- Tue Mar 30, 2021 11:16 pm
- Forum: Chemistry forum
- Topic: Acid Catalyzed Esterification
- Replies: 5
- Views: 2230
Re: Acid Catalyzed Esterification
This is not a matter of a balance calculator. Its more to have the right knowledge whats going on.
The basic here is (CH3CO)2O + ROH => CH3COOR + CH3COOH
The basic here is (CH3CO)2O + ROH => CH3COOR + CH3COOH
- Tue Mar 30, 2021 11:12 pm
- Forum: Chemistry forum
- Topic: Computatiion of Equilibrium Constant
- Replies: 3
- Views: 1592
- Tue Mar 30, 2021 11:20 am
- Forum: Chemistry forum
- Topic: Computatiion of Equilibrium Constant
- Replies: 3
- Views: 1592
Re: Computatiion of Equilibrium Constant
What is the formula of mass law of action.
- Tue Mar 30, 2021 11:15 am
- Forum: Chemistry forum
- Topic: Acid Catalyzed Esterification
- Replies: 5
- Views: 2230
Re: Acid Catalyzed Esterification
Please dont post this kind of nonsense.
Read how esters normaly are made. The sulfuric acid is catalyst and is not nominal involved.
Read how esters normaly are made. The sulfuric acid is catalyst and is not nominal involved.
- Mon Mar 29, 2021 11:53 pm
- Forum: Chemistry forum
- Topic: Acid Catalyzed Esterification
- Replies: 5
- Views: 2230
Re: Acid Catalyzed Esterification
Please write formula with functional groups. Your equation is wrong.
Vanilin is a Phenol derivate. So the ester can only happen at the OH group.
Vanilin is a Phenol derivate. So the ester can only happen at the OH group.
- Sun Mar 28, 2021 11:11 am
- Forum: Chemistry forum
- Topic: Stoichiometry % Yields and Reactants
- Replies: 3
- Views: 1635
Re: Stoichiometry % Yields and Reactants
For a) you calculate the mol of 405g PCl3 and according the equation you calculate how much Chlorine and phosphorous you need. Then you calculate the 100g P4 and 100 l Cl2 and compare. Dont forget the stiochometric factors. n =m/M, n = mass/ molar mass. b) is the difference of the theoretic and prac...
- Sun Mar 28, 2021 9:55 am
- Forum: Chemistry forum
- Topic: Stoichiometry % Yields and Reactants
- Replies: 3
- Views: 1635
Re: Stoichiometry % Yields and Reactants
All results are correct. What is the problem.?
- Sun Mar 28, 2021 1:25 am
- Forum: Chemistry forum
- Topic: Acid and Bases Help
- Replies: 3
- Views: 1802
Re: Acid and Bases Help
You forgot the equilibrium for water, if you have concentration around 10^-7
https://preparatorychemistry.com/Bishop ... ibrium.htm
https://preparatorychemistry.com/Bishop ... ibrium.htm