Chemistry Forum

The 3.2 is removed from 7.2 to get final 4.

2D + G => 2C + B In equilibrium we have 4 mol/l D , 2 mol/l G and 3,2 mol/l C In beginning there is no C and no B. So it means 3,2 mol C are produced, what means 2 D gives 2 C. 3,2 mol C has to be add to D what gives 7,2 mol/l . 3,2 mol C means also the half of G = 1,6 mol/l has to be used. So in be...

It is alcaline, because the OH group in NaOH is bonded to a metal. If OH group is bonded to a nonmetal like C, N, S, P, Cl and others it is working neutral to acidic, depending on the electronegativity.
More alcaline is C2H5O- in C2H5ONa.

It is because of the OH- group. NaOH, KOH, Ca(OH)2, Ba(OH)2 and others have same behaviour.
The OH- group can react with H+ ( H3O+) to form H2O. It is a proton acceptor (Brönstedt) or a electron pair donator ( Lewis).

Your post gives no new information for this thread.

Separate the Masses of CuSO4 and Water. With the specific gravity of the 80 ml solution you get the mass of it with percentage the mass of CuSO4. Calculate the mass of CuSO4 from the 30 g CuSO4×5 H2O and also the mass of the 5 H2O. So you will get two sum, one of the both CuSO4 amounts and the water...

Disaggree The solution is NiSO4. In this Chlorine Cl2 will be inserted. We have Ni 2+, SO4 2- and Cl2. There is no reaction Ni => Ni 2+ + 2e- Cl2 + 2e => 2Cl Ni 2+ + 2e => Ni This would be both reduction, no oxidation You cannot add both, because you need an Oxidation Ni => Ni 2+ + 2e- Cl2 + Ni => 2...

Its not clear do you have Ni metal available or not. If yes Ni is immersed into the NiSO4 solution. Chlorine is an oxidiser and will react with the Ni to form NiCl2. If only Ni 2+ is available then it could react from Ni 2+ to Ni 3+.

Is the activation energy dependent on the Temperature, i dont think so. No, it is dependent. As temperature increases, molecules gain energy and move faster and faster. Therefore, the greater the temperature, the higher the probability that molecules will be moving with the necessary activation ene...

Note: I don't understand why doesn't Latex work here?

I think you have some Syntax error in.

\(\% iron = m(Fe) \div m(sample) \times 100\% = 0.06452 g \div 2.5000 g \times 100\% = 2.58\%\)

2 NaH2PO4*2H2O + Mn(CH3COO)2*4H2O => Na2MnP2O7+ 2 CH3COOH + 9 H2O

What are your own ideas

1. Develop the redox reaction
2. Calculate the moles of dichromate used during titration
3. How many moles iron correspond to it according reaction equation
4. Convert the moles to mass
5. Calculate the percentage with given mass of ore.

Sulfate is like a boat on a Lake. It carries 2 electons as passengers. It's negative charged therefor. It travels to the positive electrode called anode and oxidise copper, what means the electrons go of board and copper ions get dissolved. The electrons travel trough the wires of the circuit and re...

Probably nothing happens.

I am not sure it has an azeotrope, so normal Destillation probably will not work.Toluene is non protic, the others are some protic because of the oxygenes. So water steam phase destillation probably helps.