Search found 28 matches
- Wed Oct 13, 2021 6:50 am
- Forum: Chemistry forum
- Topic: How to calculate the molarity of glacial acetic acid?
- Replies: 3
- Views: 2555
Re: How to calculate the molarity of glacial acetic acid?
I solved this and wanted to share with others. Can you tell me this is correct or not and explain some more points?
- Wed Oct 13, 2021 2:14 am
- Forum: Chemistry forum
- Topic: How to calculate the molarity of glacial acetic acid?
- Replies: 3
- Views: 2555
How to calculate the molarity of glacial acetic acid?
Glacial acetic acid is a colorless liquid with a clear appearance. Different companies offer concentrated glacial acetic acid with a purity of 99.7% ( density ) 1 L volume ⟶ ( mass of 1 L solution ) % by mass ⟶ ( mass of solute ) molar mass ⟶ ( number of moles ) 1 L volume ⟶ ( molarity ) The known v...
- Fri Oct 01, 2021 2:54 am
- Forum: Chemistry forum
- Topic: please, help be with balance
- Replies: 11
- Views: 8834
Re: please, help be with balance
I solved it and saw you added already but i don't know if someone already answered any question I can't.
- Thu Sep 30, 2021 8:38 am
- Forum: Chemistry forum
- Topic: Unit Conversion mol/kg to mmol/g
- Replies: 14
- Views: 8165
Re: Unit Conversion mol/kg to mmol/g
I missed it. Sorry
- Thu Sep 30, 2021 8:28 am
- Forum: Chemistry forum
- Topic: please, help be with balance
- Replies: 11
- Views: 8834
Re: please, help be with balance
O3 + Na2S2O3 From this equation, the thiosulphate from sodium thiosulphate (Na2S203) will go to sulfate. S2O3 2- + 10 OH- → 2 SO4 2- + 5 H2O + 8 e- The ozone in the equation (O3) will be converted to normal Oxygen O2 4 (O3 + H20 + 2 e- → O2 + 2 OH-) By adding both these equations. We get: S2O3 2- + ...
- Tue Sep 28, 2021 2:37 am
- Forum: Chemistry forum
- Topic: Unit Conversion mol/kg to mmol/g
- Replies: 14
- Views: 8165
Re: Unit Conversion mol/kg to mmol/g
I tried and here i am with the solution (let me know this is right or not?) 1 g / mol = 0.001 kg / mol I mol / kg = 1 mm / g The conversion will now be pretty simple. 1.5 mol / kg = 1.5 mol / 1000g = 0.0015 mol / g = 1.5 mmol / g Mg / g is impossible to calculate without the molar mass. The value of...
- Tue Sep 28, 2021 1:39 am
- Forum: Chemistry forum
- Topic: Enthalpy of reaction using one equation and its enthalpy
- Replies: 4
- Views: 4558
Re: Enthalpy of reaction using one equation and its enthalpy
Finding Moles via 0.250 M ∗ 100 mL / 1000 mLL = 0.0250 mol HCl 0.150 M∗200 mL / 1000 mLL = 0.0300 mol NaOH Assuming that there is limiting reactant ΔH∘298 = q = 0.0250 ∗ − 58 kJ ∗ 1000 J / KJ = − 1450 J Assuming that the heat is fully transferred − qrxn = qcal = 1450J Using equation q = mΔT Finding ...
- Wed Sep 22, 2021 2:38 am
- Forum: Chemistry forum
- Topic: Someone here can tell us, how chlorine remove the impurity from the water..?
- Replies: 2
- Views: 4214
Re: Someone here can tell us, how chlorine remove the impurity from the water..?
Chlorine also known as Cl is a yellow green gas at room temperature. Chlorine is mostly used for the purification of water. Chlorine gas is passed from the water in the water purification method. It is used to kill bacteria and other microbes from drinking water supplies. It does not remain in the b...
- Mon Sep 20, 2021 11:55 pm
- Forum: Chemistry forum
- Topic: What is the difference between movement of particles between solids and gases with an example?
- Replies: 1
- Views: 6038
What is the difference between movement of particles between solids and gases with an example?
What is the difference between movement of particles between solids and gases with an example? The solids have stronger intermolecular force and the particles in a solid matter are closely packed to each other. That is the reason it's hard to break a solid particle just because of the strong covalen...
- Fri Sep 17, 2021 12:19 am
- Forum: Chemistry forum
- Topic: What is the difference between ghostwriting and freelance writing?
- Replies: 2
- Views: 5750
Re: What is the difference between ghostwriting and freelance writing?
To define it in easy words ghostwriting is the type of writing where the content being published is not owned by the writers own name. They could be writing for someone else or just willingly not ok with putting up their content with their own name. Whereas a freelance writer gets paid and gets to w...
- Fri Sep 10, 2021 1:52 am
- Forum: Chemistry forum
- Topic: What is gold number here?
- Replies: 4
- Views: 6009
Re: What is gold number here?
Amount of starch added = 0.005 x1000 = 0.5 mg Prevent Coagulation by addition of 1ml of colloid = 5/100 x 10 = 0.5 mg Hence the gold number is 0.5 mg The gold number is the minimum weight of a protective colloid required to prevent the coagulation of 10 ml of a standard hydro gold solution when 1 ml...
- Fri Sep 10, 2021 1:16 am
- Forum: Chemistry forum
- Topic: Molecular Formula
- Replies: 2
- Views: 3759
Re: Molecular Formula
Molecular formula provides us with the number of atoms present in each element of a molecular substance or molecular compound. Molecular formula presents the actual ratio between the atoms of a compound. Formula: Molecular formula = (empirical formula)n N = M/empirical formula mass In this question ...
- Thu Sep 09, 2021 6:42 am
- Forum: Chemistry forum
- Topic: Why Does Glycolysis Make A Cell More Alkaline?
- Replies: 1
- Views: 3237
Re: Why Does Glycolysis Make A Cell More Alkaline?
Glycolysis is the process in which one glucose molecule is broken down into two 3-carbon compounds called pyruvate. Pyruvate is not reduced in glycolysis, instead glucose is reduced to pyruvate. NAD+ is the key electron carrier which reduces glucose by accepting the H+ ions and forms NADH. Since aci...