Question

Question completion Status QUESTION 6 2 points Save Answer Below is a list of some weak acids Name Formula pka Molar Mass acetic acid HIC2H302) 4.76 60,052 butanoic acid HICH702) 18104 formic acid PHO) 3.75 46.024 heptanoic acid HC7H1302) 4.89 130.182 hexanoic acid 1102) 4 116.16 hydrocyanic acid HCN 9.21 27028 32 20.00 hydrofluoric acid HF lactic acid HIC3H503) 3.08 90.078 nitrous acid HINO2 3.25 47.018 octano acid HICOM1502) 489144208 HICH902) 4.84 102.13 pentanoic acid propanoic acid H502) 486 14.078 uric acid HECHNO3)3.89 168.122 Below is a graph of the titration of a 0.269 g of a weak acid from the table with 0.09560 M NaOH solution

Answer 1

equivalence PO ph, pia 4.8 - + + eachsmall diuston 12mt -20-2 units volume of NuOH used to equivalence point a 24 mL (24-85m2) volume of naon used to reach the sot-T 2 24ml a 12mL. to pH at The pica & acld is half-way equivalence so pla a 4.8. equal part. equivalence , moles of HA Z moles of NaoH L » mass of HA 2 (ro) waon molar mass 6.09560m x 24 con 0-2599 molar mads 2 maar mass of acld 117 g/mol - The unknown cold is hex and ach Cas pica & molar mals are near to it)