Question

3. Consider a solution prepared by dissolving 30.000 g of BaCl, in enough water to make a 200 ml solution. a. Determine the molarity of the BaCl, solution. b. Determine the molarity of Ba2+ ions. c. Determine the molarity of Chions. A chemist adds 800 mL of a 0.140 M NaCl solution to the existing 200 mL solution. d. Determine the new total volume of solution. e. Determine the new molarity of Ba2+ ions. f. Determine the new molarity of Cl ions.

Answer 1

Weight Nalume Saldion ocmL moleclati weigha Racdz m) m= 137.32 + 35.5 2 137.32+7 1. o a BaahSalutian mdauity m. VimL) 30 208-32 Xl000 O73malL Meach malasity b) ions Bace 1mal Bat ions mal Boc gives

Malaity ons aions Meto2.mdj 72md|L Malody c ions t c give amales 4 mal Bad ions Maluty cs ions 2x 0.72 Me dwhen chemis adlc 800ML af o.146 MNac soutioh to the eisng Solidion aov mL aSume cy then the nes todl Solukion torom iL eigh ac New vahme SolutiondonomL maleculat weighl Ratdse ఇంకి-3న్మి

Makeity Bad Xlovo VemL) m 30 a08.32 MBach 014.4 mal/L e mal Bacls gives Malakily Bat ion o14 4 mdl Medta.2mal mal Baclgive amal ca ioh Malarity onad44 2 O 288 malL Mca