Homework Answers
first mixing two solutions
M = (M1V1 + M2V2 / V1+V2)
M = (0.250 x 125) + (0.200 x 175) / 125 + 175
M = 31.25 + 35 / 300
M = 0.22 M
now this solution is diluting
M1V1 = M2V2
M1 = 0.22 M , V1 = 300 mL
M2 = ? , V2 = 500 mL
M2 = (M1V1 / V2)
M2 = (0.22 x 300 / 500)
M2 = 0.132 M
answer = 0.132 M
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