We are asked to identify the molar mass of the acid (HA).
We go through the following steps to identify the molar mass.
Step 1. Identify reaction
Step 2. Calculate moles NaOH
Step 3. Calculate mole HA
Step 4. Calculate molar mass
A mass of 0.4113 g of an unknown monoprotic acid, HA, is titrated with NaOH. If the acid reacts with 25.0 mL of 0.1184 M NaOH(aq), what is the molar mass of the acid?
a. 2.97 ´ 10–3 g/mol
b. 9.13 g/mol
c. 139 g/mol
d. 337 g/mol
e. 821 g/mol
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