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0.03255 mole KHT IL grams 100 ML 2) Calculate percent error of actual value 0.617 g...
Calculate the percent yield if you start with 0.18 mL trans-cinnamaldeyde and 0.617 g benzyltriphenylphosphonium chloride in 2 mL 10 N NaOH and isolate 0.206 g (E,E)-1,4-diphenyl-1,3-butadiene. Show ALL your calculations! (Hint: first you need to compare the moles of the substrates to know which substrate is the limited reagent. Then you calculate the percent yield by comparing the moles of the product with the theoretical yield (moles of the limited reagent).)
Calculate the percent yield if you start with 0.18 mL trans-cinnamaldeyde and 0.617 g benzyltriphenylphosphonium chloride in 2 mL 10 N NaOH and isolate 0.206 g (E,E)-1,4-diphenyl-1,3-butadiene. Show ALL your calculations! (Hint: first you need to compare the moles of the substrates to know which substrate is the limited reagent. Then you calculate the percent yield by comparing the moles of the product with the theoretical yield (moles of the limited reagent).)
Unsure if my percent error is correct for the 100 mL beaker.
My volume read was 20. mL but I am confused if within the
formula, the “actual” should be 20. mL or if it should be 100
mL.
Show all your calculations for the volume and % Error determinations: 100 mL Beaker: 15,45009/.993597@ -15.0211 m,니 .3315 mL Recent 307. cedent error vo rec
Calculate the mass of EDTA (C10H12CaNNa2Os: MW=374.20 g/mole) needed to prepare a 100- mL of 0.0100M EDTA solution. (Show your work)
Calculate the pH of 4.5 grams of HCl(g) bubbled into water to make 100. mL of solution. (Please explain it step by step!)
calculate the weight in grams
2. Calculate the weight in grams of: (4) a. 0.800 mole of PbS b. 4.00 mole of Al2(SO4)3
3. Obtain the accepted value from your instructor and calculate the percent error for each result. B=0.200 m QUESTIONS Concentration (M) Absorbance 0.5 1.005 0.3 0.704 0.25 0.617 0.1 0.291 0.05 0.131 0.513 Concentration VS Absorbance y = 2.1773x R? -0.9566 Absorbance 0.1 0.3 Concentration (M) ? absorbance = 0.513 0.513 = 2.1773x Concentration Concentration concentration - 0.513 2.1773 concentration = (0.2356
determind the actual and percent yield of NaC2H3O2
opt mmand 3. Determine the amount of excess reactant that remained in the flask. You will need to convert 0.062 mol of HC2H302 into grams to determined how much HC2H302 you started with, so you can subtract how much you used to determine the amount left in the flask. ь.obral icad 60.0619Haita z?72 3 Halb0e 28 9Nablen lholhalles: Ihnol Hahahd9Hang./6392 4. Calculate the actual yield of NaC2Hs02 by using the weight of...
150. grams AX 1 mole A molar mass A X 3 mole B 2 mole A x molar mass B- mole B 1. Find the mass of water (H2O) needed to react with 150 grams of potassium (K). 2 K(s) + 2 H2O (5) ► 2 KOH(aq) + H2(g) 2. Find the mass of fluorine (F) needed to react with 150. grams of aluminum (AI). 2 Al(s) + 3 F2 (g) → 2 AIF, (s) 3. Find the mass of...
2 CH,CHBr + 2 Me + C.HBOCH, OH C.H.CCHCH CH2CH3 109 g/mole 1.47 g/mL 24.3 g/mole 164 g/mole 136 g/mole 1.08 g/ml If 10.0 mL of bromoethane react with 5.0 g Mg, then with 10.0 g of methylbenzoate, and if 9.0 g of 3-phenylpentanol are formed, what is the percent yield? Show your work. 4. a) In the reductive amination reaction why is the NaBH, only added 15 minutes after the amine and the aldehyde have been mixed, and not...