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What is the pH of 0.5M FeCl3?
I am assuming that this FeCl3 is going to be aqueous, as it usually is. Therefore, Fe+3 forms complexes in water in the following manner: B FeCl3(aq) +6H2O → [Fe(H2O)6]3+ Now, because the Fe has a positive charge, it will pull the negative electron cloud towards itself, making the bond holding the H on the OH weaker, which leads to an easier release of protons (H+). Therefore, [Fe(H2O)6]3+ → [Fe(H2O)5]+2 + H+ As you can see, Fe is in the "net reaction" acting as an acid, as it makes the H2O's bound to it release H+ ions into the water. Therefore, FeCl3 is assigned a Ka value, which = 2.0 x 10-3. Now, we need to set up our table: FeCl3 → Fe(H2O)5]+2 + H+ Initial concentration 0.5 M 0.0 M 0.0 M Change (-) x x x Final Concentration 0.5-x x x So, we can set up our equilibrium constant expression: Ka= [H+][ [Fe(H2O)5]+2]/[[Fe(H2O)6]3+] we know Ka therefore: 2.0 x 10-3= x2/0.5-x Solve for x, must use quadratic: 0.001-2.0 x 10-3x-x2=0 Solving the quadratic gives us: x= -0.032639, 0.030639 The negative result is unphysical, because we cannot have a negative concentration, therefore, x= 0.030639, which from our graph tells us that the concentration of H+ = 0.030639M, so to find the pH: -log( 0.030639)= pH = 1.51, so therefore, the pH of 0.5 M FeCl3 is 1.51. Hope that helps, don't know if you needed to know all the details. Praise God! Eugene.
What is the name of NiCl2 x 6 H2O?
NiCl2 x 6 H2O Nickel(II) Chloride Hexahydride
How many grams of FeCl3 does 5.88 X1028 weigh?
I don't have a good calculator, but i'll talk you through (will actually benefit you to do it yourself, this will come back to bite you if you don't learn it). Avagadros number is no. molecules per mole. 5.88x1028 / avagadros number gives your amount of moles. Moles / molecular weight gives weight
What is the complete meaning of 6 h2O?
The complete meaning of 6 H2O is six molecules of water. Each molecule of water (H2O) consists of two hydrogen atoms and one oxygen atom bonded together.
When The chemical equation blow summarizes photosynthesis. write a similar equation for cellular respiration?
Photosynthesis: 6 CO2 + 6 H2O + light energy -> C6H12O6 + 6 O2 Cellular respiration: C6H12O6 + 6 O2 -> 6 CO2 + 6 H2O + energy
What is the chemical compound of photosynthesis?
The chemical reaction is:6 CO2 + 6 H2O = C6H12O6 + 6 O2
What is Value of magnetic susceptibility of fecl3?
The magnetic susceptibility of FeCl3 (Iron(III) chloride) varies depending on the temperature and the state of iron ions in the compound. At room temperature, the magnetic susceptibility of FeCl3 is typically around 5-7 x 10^-6 cm^3/mol.
What is the pH of 0.5M FeCl3?
I am assuming that this FeCl3 is going to be aqueous, as it usually is. Therefore, Fe+3 forms complexes in water in the following manner: B FeCl3(aq) +6H2O → [Fe(H2O)6]3+ Now, because the Fe has a positive charge, it will pull the negative electron cloud towards itself, making the bond holding the H on the OH weaker, which leads to an easier release of protons (H+). Therefore, [Fe(H2O)6]3+ → [Fe(H2O)5]+2 + H+ As you can see, Fe is in the "net reaction" acting as an acid, as it makes the H2O's bound to it release H+ ions into the water. Therefore, FeCl3 is assigned a Ka value, which = 2.0 x 10-3. Now, we need to set up our table: FeCl3 → Fe(H2O)5]+2 + H+ Initial concentration 0.5 M 0.0 M 0.0 M Change (-) x x x Final Concentration 0.5-x x x So, we can set up our equilibrium constant expression: Ka= [H+][ [Fe(H2O)5]+2]/[[Fe(H2O)6]3+] we know Ka therefore: 2.0 x 10-3= x2/0.5-x Solve for x, must use quadratic: 0.001-2.0 x 10-3x-x2=0 Solving the quadratic gives us: x= -0.032639, 0.030639 The negative result is unphysical, because we cannot have a negative concentration, therefore, x= 0.030639, which from our graph tells us that the concentration of H+ = 0.030639M, so to find the pH: -log( 0.030639)= pH = 1.51, so therefore, the pH of 0.5 M FeCl3 is 1.51. Hope that helps, don't know if you needed to know all the details. Praise God! Eugene.
What is the balanced equation for FeCl3 and KSCN?
FeCl3 + 6KSCN --> [Fe(SCN)6]-3 + 6K+ + 3Cl- This is a complex ion equation. K has a charge of +1 and Cl has a charge of -1 but since these form an aqueous solution, they are seperated. Put together, the equation cannot be balanced.
What is the name of NiCl2 x 6 H2O?
NiCl2 x 6 H2O Nickel(II) Chloride Hexahydride
What is the balanced ionic equations for CuSO4 plus H2O reactions?
These are some possible ionic equation for CuSO4 plus H2O: Cu2+ + 6 H2O --> Cu(H2O)6 Cu(H2O)62+ + H2O <--> Cu(OH)(H2O)5+ + H3O+ This makes a solution of copper sulfate weakly acidic.
What are the missing coefficients to C6H12O6 O2--- CO2 H2O?
The balanced equation for the reaction of C6H12O6 with O2 to form CO2 and H2O is: C6H12O6 + 6 O2 -> 6 CO2 + 6 H2O
What are 6 examples of compound?
6 coumpound examples are air, water, earth, wind, ice, and mountains.
How many grams of FeCl3 does 5.88 X1028 weigh?
I don't have a good calculator, but i'll talk you through (will actually benefit you to do it yourself, this will come back to bite you if you don't learn it). Avagadros number is no. molecules per mole. 5.88x1028 / avagadros number gives your amount of moles. Moles / molecular weight gives weight
Chemical compound of iridium III chloride hexahydrate?
The chemical compound of iridium III chloride hexahydrate is IrCl3 * 6H2O. Iridium(III) chloride is an extremely rare inorganic compound.
What is the most important chemical reaction in the world?
Using sunlight,6 CO2 + 12 H2O ===> C6H12O6 + 6 H2O + 6 O2http://en.wikipedia.org/wiki/Photosynthesis
What is the complete meaning of 6 h2O?
The complete meaning of 6 H2O is six molecules of water. Each molecule of water (H2O) consists of two hydrogen atoms and one oxygen atom bonded together.
