Question

can you please do 8,9, and 10

8 The Following reaction is classified as D T 103110D 2931 2HCl(aq) + Ba(OH)2(aq) → BaCl(aq) + 2 H2O( lo a) oxidation-reduction reaction b) precipitation reaction c) single replacement d) acid-base neutralization reaction What is the volume of 0.1220 M HNO, solution required to completely neutralize 1750 ml. of 0.1211 MNOH? Reaction is: HNO, (aq) + NaOH(aq) - N.NO, (a) Hot a) 17.37ml. b) 16.31 ml. c) 15:39 L 1784 m. alda 10. Which one of the following reactions is the reduction reaction a) C (aq) + 2e - Cu (s) b) C(s) - (aq) + 3 c) Cu- Cu + e d e 11. Using the following portion of the activity series of elements Ca(s) Ca(aq) + 2e (strongly reducing) Al() --Alaq) + 3e Cus) - Cu?+ (aq) + 2e (weakly reducing) Determine which one of the reactions will occur. a) Cu(s) + Ca(a) b) AG) + Cut ) e) Al(s) + Calaq d) Cu(s) +Al+ (aq) 12. In the following combustion reaction of methane gas (CH) with oxygen is given How many (g) of H:0 is produced when 0.533 moles of CH reacts with O.? a) 15.23g b) 9.60 c) 19.21 g d) 17.21 g How many grams (g) of NaCl are needed to prepare 250.0 ml of 0.365 M of NaCl Solution? a) 5.34 g b) 10 25 g c)3.65 g d) 7.218 HO

Answer 1

0 2HCl(aq) + Ba(OH)2 Lag Ball cags + thoius It is aud-base neutralization reaction as (basel react to give H₂O Lo cautel) and Baloh and Bally csalt). 6 Compo of HNO₂ (6) = 0.12rom Volume of Nath (V₂) = 17. Some con of Naom (Ca) = 0.1211 m . Civ. = Calz (NaOH). (HND) G o. 1280m x v = 0.1211 m x 17.Soml = 0.1211m x 17. SomL -= 17.37mL. 0 1220m Volume of HNO₃ = 17.37 ml Hence Ang is ay 17.37 mL 10 Reduction reaction is that in which Oxidation state decreases or gain of e- is called reduction Hence, ay what he als) is reduction reaction. as Oxidation state of cei decreases from +2 to o art Chet gein two e to form w