Unknown c. Volume Sor OEn Unknown dulfate. 100.0ml 20.43.28g mas of Empty Crutible & cover Maai of Crucible ģ barium fulrate barium mas of Ciema sulfate. 21.0526g 0.61989 Conc. of Bat Cm/L).
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- Data Mass of unknown metal Cark te ?l.005g Volume of uniknown solotion CmL) Volume of HCI added Inital burct readinglmL) Final buret reading (mL) 20.00ML (mL) 15.00mL 20.SSmL 30.90ML Volume Na OH delivered (m L) Concentration of HCI: O.1708M Concentrahon of NaOH: O.1000M * Pipetted 10.35mL 20.00mL Of solution prepared in 250.0 mL volumetric flask Questions', 1. Calalate the number of moles of Na OH used for back titration? 2. Calculate the number of moles moles of metal carbonate present in 20.00mL portion of the metal Carborate soltion? 3. Calculate molar masS of 3.Calculate in knon metal carbongte: Egbabl Qe A Solution is Prefared Tby dissdlving 6g AgNoz ina 250-ml Volumetric Hask and diliting the molaurity of the Silver nityate Solution How to Volume. alculute Many millimoles Ag No3. Were dissalved7 twt Ag Noz 169-9Hat1.0 M H KOAC in 100 ml. Ans. 4.53. at the ec 8. 50 ml 0.1 M NH, is mixed with 100 ml 0.1 M HCI. What is the pi df the resulting mixture? 28. Sel volume Ans. 1.48. 9. Repeat problem 8, hut
- K/s 9:06 hw.pdf > Hw () Determine the melarity of e-ch of the folloning 2.25 kg of Cusoy in 1.45 Lof solusion O,006 mol. of Br, in lo mL of soleie O. s 0075 gm of C HHs Noz i n 1.osmL of solution Hint. The atomic numbers used in the above Problem ave O = 16 Cu: 29 Br: 35 K = 19 CI - 7 S: 16 Al: 13 N = 7on in a 1. 200 Sample was precipi toled as the hdroxide and ignited to Ferm Fez0 (0. 352 1 FW= 159-7 lmal). Fnd %Fe (AW : 55-8 glmal)in the Sample. 4 A 2-560 g of impure CCl, Sample was disselved in water and precipitated wii th excess Na Cou Selution. 1F i.245g CaGOu (FW= 12891ml) was obtained, what is the percentage f Cack (FW= mglmal) in the impure Sample? Cu: A 0-21219 sample of an organic Compound was and the Ce, was burned in a stream of oxygen, and the CO2 was Callected in a solution of BalOH), Caleulate the %C in the Sample if o.co06 g of Ba COg was hamedd (FW Ba CO, = 197.34g mol), (AW C=12 glm)K/sll.l 9:06 hw.pdf > Hw () Detevmine the melarity f e-ch of the foiloming W 1.5 mol kcl in l.SLof Salutn o.5 gm f Hz Sou inIL soo mL : sdusio- 20 gm of AI( No3), in 2.25 kg of Cusoy in l.45 Lot solution O o.006 mol. of Br, in lomL of sole O. v0075 gm of C Hs Noz in 1.usmL of solution Hint. The atomic numbers usedin the above Problem ave O= 16 Cu: 29 Br: 35 K= 19 S: 16 Al: 13 N = 7
- Determire He average, excluding any trails that fall outside t0. 0005 M of tte average, O o. 14569n3354 e 0. 145h193982 0.1457827298 @ 0. 1479657598 Average Modoity Molority lexcluding oatlers):Safari File Edit View History Bookmarks Window Help A www-awu.aleks.com CLA T M MyOpenMat. ODayforce A ALEKS - Jad. SV Ellucian Deg.. Borrower Ap. My Blackbo.. D jada.jackson. O STOICHIOMETRY Dilution OD A chemist must prepare 1000. mL of 320. mM aqueous calcium bromide (CaBr,) working solution. He'll do this by pouring out some 0.336 mol calcium bromide stock solution into a graduated cylinder and diluting it with distilled water. aqueous Calculate the volume in mL of the calcium bromide stock solution that the chemist should pour out. Round your answer to 3 significant digits. mL Explanation Check 2021 McGraw-H Education. AllRights Reserved. Terms of Use / Privacy Accessibility dtv Thank The esc & 2# - 1 2 3 4. 6 Q W E T Y tab D F G K A S caps lock M V command or control option command R N