ASA tablets contain the analgesic acetylsalicylic acid HC 9 H 7 O 4 which has an acid hydrogen ion During titration of a tablet of 0 250 g of
ASA tablets contain the analgesic acetylsalicylic acid HC H O which has an acid hydrogen ion During titration of
ASA tablets contain the analgesic acetylsalicylic acid HC H O which has an acid
analgesic acetylsalicylic acid HC H O which has an acid hydrogen ion During titration of a tablet of g of
ASA tablets contain the analgesic acetylsalicylic acid HC H O which has
an acid hydrogen ion During titration of a tablet of g of
ASA tablets contain the analgesic acetylsalicylic acid HC H
ASA tablets contain the
ASA tablets contain the analgesic acetylsalicylic acid, HC 9 H 7 O 4 , which has an acid hydrogen ion. During titration of a tablet of 0.250 g of...

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Could some please check my calculations 1. ASA tablets contain the analgesic acetylsalicylic acid, HC9H7O4, which has an acid hydrogen ion. During titration of a tablet of 0.250 g of ASA, 38.5 mL of KOH at 0.0223 M were required to reach end point. What was the percentage by mass of the acetylsalicylic acid in the tablet? HC9H7O4 + KOH à KC9H7O4 + H2O Ratio of moles of HC9H7O4 and KOH= 1:1 Volume of KOH= 38.5 mL = 0.0385 L moles of KOH = 0.0223 Mass of KOH= mol of KOH x volume of KOH x molar weight of KOH) =0.0223 mol x 0.385 mol/L x (39+16+1)g/mol =0.00858 mol x 56 g/mol = 0.4807g Mass of ASA =0.250g Total mass of the mixture= 0.25 g+ 0.48 g = 0.73 g % by mass of ASA = 0.48/0.73x100% =65.75% The percentage by mass of acetylsalicylic acid tablet is 65.75%