Data Sheets: Synthesis of BenzilReagentsReagentsMW(g/mol)mp (°C)benzoin212.24132.-138HNO3 conc.(15.8 M)AmountUsed(g or mL)Moles Equivalents1.9499 0.009136.9mlmolesProductsMWProductmp (°C)mp (°C)(g/mol) (Literature) (Observed)TheoreticalYield(moles)Theoretical WeightYield (g)%(g)Yieldbenzil210.2394-960 97.31.9301.090дWeight of crude benzil =% recovery =Observations: Observations made during the experiment and any changes in the experimentalprocedure should be noted here.0.00918 moles x 210.23 gm1.9499=212.24 g/mol0.00918 moles=1.930 mpUniversity of New OrleansSAL(10/2023)3

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Appl Of Ms Excel In Analytical Chemistry

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solute Which is the better solvent? H,0 H NH,NO, H H H. CH;(CH,),OI NaCl CH,OH H,0 KCI Su Continue © 2022 McGraw Hill LLC. AIl Rights Reserved. Terms of Use| Privacy C II
Which substance is MOST soluble at 0 °C2 100 90 NANO, 80 70 60 CaCl Pb(NO,)a 9 40 NaCl A 30 KCI 20 KCIO 10 Ce, (SO), 0 10 20 30 40 50 60 70 80 90 100 Temperature ("C) KI NaNO3 Ce(S04); NaCl Solubility (g of salt in 100 g H,O) FONX K,Cr,O,
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Ksp = 1.6 x 10-4⁹ for Ag2S at 25 °C, what is the molar concentration of Ag* at 25 °C? M (example: type in 3.4E-5 for 3.4x10-5). Please pay attention to the number of sig. figs. in your answer. The molar concentration of S²- is M.
O e) % KBr = % 66.2 , % KCI = % 33.8 %3D The solubility product (Ksp) for 4 points Pb(OH)2 (s) is 2.5 x 10-16. What would be the quantity of solubility by g/L of Pb(OH)2 which has Mwt =241.2 g/mole)? O 9.947 x 10-4 O 5.975 x 10-4 O 7.596 x 10-5 O 9.575 x 10-4 O 9.723 x 10-4 Calculate [H+], PH and POH 4 points
3 Bal, (aq)+ 2 Nag POq Caq) 7 BalPO42 + l6 Nal laq • Consider the reaction of 30.0mL of 0.270M Balz with 20.0 mL of 0.3ISM Naz PO4. Lwhat quantity in meles of Balz are preset in the solution? are produced /What quantitg in moles of precipitate E ali Bal were consumed based on the balanced chomical equation? 6) What auantity in males of Na3 Pla aro present in soluction? d) What quantity in moles of precipitate are paduced if all the Naz PO, were cansumed based on the balanced chemi.cal equation? e) which reactant is limisting f What mass (in g) of precipitate is firemed when the limiting reactant is considered?
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The equilibrium constant (Khvde) for hydration of acetone (CH3COCH3) is 2×10-3. This translates into a very small percent conversion to the corresponding hydrate. Would you expect the (Kryde) for hexafluoroacetone (CF3COCF3) to be smaller or larger than that for acetone? Choose from the choices below. See Periodic Table O See Hint Choose one: O Smaller. The CF3 groups are bulky and will sterically repel each other when hexafluoracetone is in its hydrated form. O Larger. The CF3 groups are strongly electron-withdrawing, thus increasing the electrophilicity of the carbonyl carbon and making it more susceptible to nucleophilic attack. O Larger. The CF3 groups are bulky and sterically repel each other in hexafluoracetone, thus increasing the electrophilicity of the carbonyl carbon and making it more susceptible to nucleophilic attack. O Smaller. The CF3 groups are strongly electron-withdrawing, thus decreasing the electrophilicity of the carbonyl carbon and making it less susceptible to…
ythos.content.blackboardcdn.com/5af05a7aa8cfe/3542526?X-Blackboard-Expiration=1614816000000&X-E 100% Suppose you dissolve 4.50 g of NAOH in 500. mL of methanol, which has a density of 0.791 g/mL. The solution has a total volume of 505. mL. Find the: moles solute (a) Molarity = Liters of solution moles solute (b) Mole fraction= moles solute plus moles solvent moles solute (c) Molality= kg solvent (d) Mass % solute= mass solute X 100 mass of solute plus mass of solvent (e) ppm = Parts per million= mass solute X 1,000,000 mass of solute plus mass of solvent 18 HB #2

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