Some amount of dichloromethane (CH_2C1_2) is added to 671.141 mL of chloroform (CHC1_3) to prepare 2.6x10^-3M solution of CH_2C1_2(DCM). The concentration of DCM is ______ ppm (by mass). Given: Atomi…

Question

Some amount of dichloromethane (CH_2C1_2) is added to 671.141 mL of chloroform (CHC1_3) to prepare 2.6x10^-3M solution of CH_2C1_2(DCM). The concentration of DCM is ______ ppm (by mass). Given: Atomic mass : C = 12; H : 1; Cl = 35.5 density of CHC1_3 = 1.49gcm^-3

Accepted Answer

Correct answer: 148. (148) Molarity = m o l ev o l u m e 2.6×1 0^−3= x/8 50.6 7 1 4 1 x = 0.148 g cone. Fo DCM in ppm = = 0.1 4 81.4 9×6 7 1.1 4 1×1 0^6 = 148 ppm

Solution

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