Molarity and Dilutions Practice Worksheet Key, Exercises of Chemistry

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Name: Key a Date. Block: a Molarity and Dilutions Practice - HN Part 1: Molarity M = moles of solute = Mols Volume of Solution (L) L 1. What is the molarity of a 0.30 liter solution containing 0.50 moles of sodium chloride, NaCl? ~5 mol Mz: M=[1.63M 2. Calculate the molarity of 0.289 moles of Iron (III) Chloride, FeCls, dissolved in 120 mL of solution. © [2OmEx tbe 2 yp © Mz 28% ml - ={z. qi M| 1000 mL [2 L me L 3. Whatis the many of 0.5 grams of sodium chloride, NaCl, dissolved to make 50 mL of solution’ * L = © 58.446 GOR ve ™ ” epee: M= a .o 4 mol -65 L 4. Calculate the molarity of 734 grams of lithium sulfate, Li25Ox, dissolved in 2,500 mL of solution. Lmel_ . |@ wx it ~/@ 2.56 S dy. foB me \ > 26L * 2.69 M 5. How many grams of Ca(QH)2 are needed to produce 500 mL ofa 1.66M Ca(OH ate! BOO mL x > @ _ @ Z4/./ 4 - 1oce wb \.b6 M= -§ L. 33 am (Ne Ok mo\ + . 8&3 me \* GI.5 5 CaCO) ] 6. How many grams of KOH are required to make 125 mL of a 0.50M solution? © 125 mL_x lb ® movil ® [oom mL. SME 125 O43 pwol x DUIO8s = 3.53 tL me ie = , i aS mol .663 mel @ 7, How man grams of Na2S04 are required to make 575 mL of a 0.60M solution? Oe 2 S75 my pe |® nal ® | Motes VOSS “qs 1 Lmel ~5F75 7D mol = .34U95