University:
University of North Carolina at Charlotte
Course:
CHEM 1251 | General Chemistry I
Academic year:

2024
Views:

263

Pages:

3
Author:

Kamila P.

CHAPTER 8 CHEMICAL REACTIONS IN AQUEOUS SOWTIONS A 30.00 ml sample of on HafDs solution with an unknown concentratio 13 titrated with a 0.100 M NaOH solution. The equivaleme preint is reached when 26.38 mL of NaOH solution is added. What is the concentration of H3PO4) Solution? The unbalanced neuralization reaction is shown belawi M H3PO4 (aq)+ 3NaOH(aq) 3 H₂O (e) + Na3PO4 (aq) 0.100 mol 0.03638 0.002638 mol NaOH 0.002638 N₂ON mol HSPOA 8.79.33 x 10ml. Ha for 8-7933 X1 mol H3PO4 = 0.03001 10.0.293 M H2PO4 Also called →acid-base MIVI-M2V2 ONLY DILUTION PET NOS You all this a 25.0ML of a 1.20M potassium chloride saumon with 150mL of a D.900M leod (II) nitrate saution. Wite the balanced maecular equation below! 2KCl + Pb(NO3)2 KNO(7) + PbCl2 (5) the our si solid When these sautions are mixed, a precapitate forme, and you find that it has a mass of 2.45g. Determine the limiting reectont, the theoretical field and the percent yield. 1.20 mdes KCI x 0.0250 x Imel PbCla 2 mol KCT 0.015 mol b 0.900 mol Pb(NO3)2 x 0.01506 x Imal PbCl2 1. LIMITTELGE LEACEAST I mol Pb(NO3)2 0.0185 mol Pb C12 THEORETICAL YILA 7 2.45g PbCla x mol 16 Cla 278.19 PbCla =0.00880 mol PbCla % YIELD 0.0000 ×100% 0.0135 65.3% S Baciun metal scopots with oxygen to form BcO... Boo reacts with water to form Ba(OH)2. Find the mass of harium neral (in grams) that must teach with Excers Os to produce enaugh bariom onde to prepare 1.0L of a 0.0M slution of OH 2 Ba (s) + O2(g) 2820 (5) Bat OH 1340 (5) + H2O (l) Ba(OH)3 (9) 0.10 mol x 1.0% 0.1 moLOH Imol Ba(OH)2 2 mol Of- K 0.05 mol Balon Je 0.05 mol Ba(OH)2 x 1mol BaO I mol Ba(OH)2 0.05 mol Ba 0.05 mol Box 2 mol Ba 2mol B 0.05 ml Be 0.05 mol Ba x 137.3989 I mol Ba 6.9 y Ba