Question

what are the mmols of:
3.0 mL (2.7 g) glyceryl trioleate (MW=885.44916),
7.0 mL ethanol (MW=45.06844), and
7.0 ml of 12.5M sodium hydroxide (MW=39.9925)?

Answer 1

To calculate mmol we will use the equation,

mmol = mg/MW

and, mmol = M x 1000 x L

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For 3.0 mL (2.7 g) glyceryl trioleate

mmol = 2.7 x 1000 / 885.44916 = 3.05

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For 7.0 mL EtOH (density = 0.789),

mmol = 7 x 0.789 x 1000 / 45.06844 = 122.55

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For 7.0 mL of 12.5 M sodium hydroxide,

mmol = M x L x 1000 = 12.5 x 0.007 x 1000 = 87.5