Barium sulphate forms as a precipitate in the following reaction: Ba(NO3)2 + Na2SO4 = BaSO4 + 2NaNO3 When 35g of Ba(NO3)2 is reacted with excess Na2SO4, 27.1g of BaSO4 is recovered by a chemist a) Calculate the theoterical yield of BaSO4 b) Calculate the percentage yield of BaSO4 c) Calculate the percentage error

Barium sulphate forms as a precipitate in the following reaction: Ba(NO3)2 + Na2SO4 = BaSO4 + 2NaNO3 When 35g of Ba(NO3)2 is reacted with excess Na2SO4, 27.1g of BaSO4 is recovered by a chemist a) Calculate the theoterical yield of BaSO4 b) Calculate the percentage yield of BaSO4 c) Calculate the percentage error

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter7: Statistical Data Treatment And Evaluation

Section: Chapter Questions

Problem 7.19QAP

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In the synthesis of benzoic acid, 3.5 mL of toluene were used and mixed with potassium permanganate solution. In making the potassium permanganate solution, 7 grams of the powder were dissolved in 150 mL of water. The resulting crystals were purified and the yield 1.53 grams. Identify the limiting reagent and compute for the number of moles that it consumed. What is the theoretical yield? What is the percentage yield? MW toluene = 94.14, density=0.87 g/mL , MW KMnO4 = 158, density = 2.7 g/mL , MW Benzoic acid = 122, density = 1.27 g/mL
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Salicylic acid and ethanamide were made to react in basic medium to produce aspirin and substance X. A chemist is doing a research regarding the synthesis and have seen in scientific references that the process would produce an expected amount of 8.6 grams of aspirin at 74.2% efficiency given the right condition and amount of starting material: Density Ethanamide: 1.16g/mLA) What is the probable identity of Substance X?B) How much (grams) of substance X is produced?C) How many grams of Salicylic acid was used?OWN SOLUTIONS AND NOT AI FOR UPVOTE
You have a lot of paperwork laying around. A ream of stacked paper is 500 sheets and is 2.0 inches thick. Let's say you had a mole of paper. (1 mole of paper = 6.022 x 1023 sheets of paper) and it was all stacked up in 10 stacks of equal height, each containing a tenth of a mole of sheets. The ten stacks sit one on top of the other. How high are they? (Hint: find the height of a stack of containing 0.1 mole of paper. USE DIMENSIONAL ANALYSIS!) Here are are some conversions you might need: 2.54 cm = 1 in; around 9.46 x 1015 meters / light yr and 3.26 light yr / parsec.

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