TITLE DATE C. Will WHy HS be acidic or basic in H₂O? kb of NH3 7 1.76 x 10-5 2 Kai H S = 9 × 10-8 Jad greatest vale is 1.76 × 105 Solution IS basic 2. C₁₂ H18 ONY scle Ka = 3.37 2107 ① Find pH = 3,50 PH = 10-3.5 46= kb= 1,0×10 3.37x107 -14 *- 3.0 x10 + H₂O C→ C₁₂ H₁, UNY SCI₂ -log [H3O+] 3.50 = -log C H₂01 H30 = CH2O = 3,220 Xô Galaxy S21 Ultra 5G SQUARE = i 939 out tion 900 Shoutd 7. Thiamine hydrochloride (C12H18ON4SCI2) is a water soluble form of thiamine (vitamin B1; Ka = 3.37 x 107). How many grams of the hydrochloride must be dissolved in 10.00 mL of water to give a pH of 3.50? C12H18ON4SCl2 + H2O C12H17ON4SCl2 + H3O+ 8. What is the pH of a solution containing 33 g of Na3PO4 per liter? What is the [OH-] of this solution? See necessary Ka values above in problem 1. POU 3- + 7 Н2О = 4ром 2- Kb = kw +04 Ka Und NPO 33 Na Poy 163.74 mil Naz pou IL S -20129 M PO³- Ice The 1.0×10-14 4.2 x10-13 =2.4×10-2 48 | Page V= 10.00μL