Question

You need to calibrate an instrument by creating four ~100 mL standardized stock solutions. The first solution will be 0.3114 M phosphoric acid. The phosphoric acid is both solid and anhydrous. The remaining three solutions will be serial dilutions of factor 3/10 from the first standard stock solution. Lay out a detailed procedure, protocol, method, and/or recipe for exactly how to create these 4 solutions including all necessary calculations and final molarities. Be sure to be specific into the exact kind and size, including precision and uncertainty, glassware and equipment used to create your 4 solutions.

Answer 1

FRIDAY 926 JANUARY t0oms landard Solution first solatcon O.3114 M PO a) Secon dilalcon Shouled be diladed by 3/10 INN diladen take means Pore 100 O3114 x 30 N2 X 100 SATURDAY O-3114 XB0 e01.34M O0l measure ancl of Rrst slock 50ludconand 27 30 acurlely pipelte out 30 m.l into upte 3tanclsrd Pask Che mark with dustillec Nak'e water Twaai 30luton SUNDAY 20 hare fo make chus solut con hom O.O934 We of mplazity hom the 5econ oa with dlistilkel Solutcoo Seaond Take anck make uplo he mork MTWT FSSMT W 177 24 25 26 27 28 29 30 3

1glomso MONDAY 18 ARY 2018 JANUARY 29 ils conceotradon will be O.0934 x 30 N2x 100 O.0934 x 30 O.O2 80 Paur Ib 5oladieo Take 30 m and Prom third Soldcon malke io cap to the standacl Plask oih elis will be TUESDAY 0oml LAIUAY waler The fioal xeahadcon Conc 30 O D230X30 = Nx100 O.O280x 3D 100 00 84