What are the products by the following solutions during electrolysis?
(a). KI (aq)
(b). CuI2 (l)
(c). K2SO4(aq)
(d). MgSO4 (l)
(e.) AgNO3 (aq)
(f). Mixture of KBr (l) and NiCl2(l)
What are the products by the following solutions during electrolysis? (a). KI (aq) (b). CuI2 (l)...
What are the identities of the precipitate in each of the following reactions: A) AgNO3 (aq) + KI (aq) ------> Ag (s) + KNO3 (aq) B) Pb(NO3)2 (aq) + 2KI (aq) ------> PbI2 (s) + 2KNO3 (aq) C) Na3PO4 (aq) + 3Ca(NO3)2 (aq) ------> Ca3(PO4)2 (s) + 6NaNO3 (g) D) MgSO4 (aq) + BaCl2 (aq) ------> BaSO4 (s) + MgCl2 (aq) E) COCl2 (aq) + Ca(OH)2 (aq) ------> CaCl2 (aq) + Co(OH)2 (s)
4. Review of topics to be covered For each of the following, predict the products and balance the reactions. Label all species as (s), (6), (g), or (aq). a) Pb(NO3)2 (aq) + KI (aq) b) AgNO3(aq) + NiCl2 (aq)
During the electrolysis of MnCl2(aq), what is the product formed at the cathode? Take into account an overvoltage of 0.57 V for the production of O2(g), 0.45 V for the production of H2(g) and 0.30 V for the production of Cl2(g). A) Cl2(g) B) H2O(l ) C) H2(g ) D) Mn(s)
Balance each of the following chemical equations. a) Ba(NO3)2(aq) + Na2CrO4(aq) —> BaCrO4(s) + NaNO3(aq) b) C2H5OH(l) + O2(g) —> CO2(g) + H2O(l) c) Sr(s) + HNO3(aq)—> Sr(NO3)2(aq) + H2(g) d) CuSO4(aq) + KI(s)—> CuI(s) + I2(s) + K2SO4(aq) Show the balancing of equations using the reactants-product table.
10. Which of the following pairs form solution of the following pairs form solutions? (like dissolve like) a, CCl4 in water b. C6H6 in MgSO4 C. C6H6 and C7H16 d. Gasoline in water What is the osmolarity of the following solutions? (Osmol/L) a. 0.35 M KB b. 0.15 m glucose C6H12O6 + 0.05 M K2SO4
Describe how you would prepare each of the following aqueous solutions, starting with solid KBr. A. 0.90 L of 1.4×10−2 M KBr B. 110 g of 0.160 m KBr C. 1.95 L of a solution that is 14.0 % KBr by mass (the density of the solution is 1.10 g/mL) D. a 0.130 M solution of KBr that contains just enough KBr to precipitate 16.0 g of AgBr from a solution containing 0.480 mol of AgNO3
5. You have five different individual aqueous solutions (KCIO2 (aq): LINO, (aq): HNO2 (aq); Lion and NH4NO3(aq)). These aqueous solutions have different pH values. What is the order of these solutions placed in order of increasing pH: lowest pH to highest pH? A) KClO2 (aq) < NH4NO3(aq) <LINO; (aq) <LIOH(aq) <HNO2 (aq). BHNO2 (aq) < NH4NO3(aq) <LINO, (aq) <KCIO2 (aq) <LIOH(aq). C) LINO, (aq) <HNO2 (aq) <KCIO2 (aq) <NH.NO, (aq) <LIOH(aq). D) NH4NO3(aq) <LINO3 (aq) < HNO2 (aq).<LIOH(aq) <KCIO2 (aq)....
18) Which of the following is an acid-base reaction? A) Fe(s) + 2 AgNO3(aq) - 2 Ag(s) + Fe(NO3)2(aq) B) MgSO4(aq) + Ba(NO3)2(aq) -- Mg(NO3)2(aq) + Baso C) C(s) + O2(g) - CO2(g) (D) 2 HCIO 4(aq) + Ca(OH)2(aq) → 2 H2O(l) + Ca(C1O4)2 E) None of the above are acid base reactions. 1 Determine the oxidation state of P in PO 33-. A-3 B) 0 C) +6
Part 1.) Calculate the pH of each of the following strong acid solutions. (a) 0.00555 M HClO4 pH = (b) 0.314 g of HBrO4 in 21.0 L of solution pH = (c) 39.0 mL of 3.50 M HClO4 diluted to 1.90 L pH = (d) a mixture formed by adding 59.0 mL of 0.00582 M HClO4 to 16.0 mL of 0.00676 M HBrO4 pH = Part 2.) Using values from Appendix C of your textbook, calculate the value of Keq...
Part A What substance is produced at the cathode during the electrolysis of molten calcium bromide, CaBry? Assume standard conditions. Express your answer as a chemical formula. View Available Hint(s) - ALQ ROO? Part B What substance is produced at the anode during the electrolysis of molten calcium bromide, CaBr2? Assume standard conditions. Express your answer as a chemical formula. View Available Hint(s) Submit Part What substance is produced at the cathode during the electrolysis of a mixture of molten...