what is concentration of Cl ion in a solution made by mixing 110ml of 2M barium Chloride and 250ml of .45 M Sodium Chloride?
Thank you.
Concentration Ion in a mixing solution?
2011-12-24 8:57 am
回答 (1)
2011-12-24 9:13 am
✔ 最佳答案
Mol BaCl2 in 110mL of 2.0M solution = 110/1000*2 = 0.22 molesBaCl2 dissociates to produce 2 Cl- ions
Therefore mol Cl- ions = 0.44 mol
Mol NaCl in 250mL of 0.45M NaCl = 250/1000*0.45 = 0.1125 mol NaCl
NaCl dissociates to produce 1 Cl- ion
Therefore mol Cl- = 0.1125 mol
Total mol Cl- ions = 0.44+0.1125 = 0.5525 mol
Total volume = 110mL + 250mL = 360mL = 0.360L
Molarity of Cl- ions = 0.5525/0.360 = 1.53M
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