19. Glycine is an amino acid that can be abbreviated HGly. If 27.50 mL of 0.120 M NaOH neutralizes 0.248 g of HGly, what is the molar mass of the amino acid? HGly(aq) + NaOH(aq) ï® NaGly(aq) + H 2 O(l) MV = moles (0.120 M) (0.02750L) = 0.033 mole NaOH = 0.0033 mole HGly 0.248 g / 0.0033 mole HGly = 75.12 g/mol HGly 20.
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