Shift Ctri Fn STOICHIOMETRY NAME MIIOM Rueg Gutrerez PRELAB QUESTIONS Starting with 1.5052 g of BaClk' 2H2O and excess H2SO4, how many grams of BaSO4 can be formed? If a student obtained 1.4322 g of BaSO4, what was his % yield? Pay particular attention to significant figures in these calculations. Show all work. BaClz 2H20 H2SO4 BasOy 2HC+ 21t20 Siart ena 43229 Bay pan: gBaCl 2it20mol BaCizZHO moi Bas04 2qay /50S29 BaC2 2t20imoi BoCnZh0 Imo Ba 244.2496aCiz ZhOlima Baciz 2120 Ba: 1(137.3) 1373 S:1(3207) 320 O:4(IG C0)- CH 233.37 q BasO imoieasay Ba: 1(131.3) 137.3 C 2(3545)- Y0.9 it 4(1.01) NA 40 0:2( IG CO): 32.00 244.24 g BaCzZH20 1.43829Bay 143229 BasOy x100 9.E31. y Id 14 392 Basay 69 DATA/CALCUL 1.158058 ВаCl3 2H20 Using the exact mass of BaCl2 2H2O that you used (and molar masses to the appropriate number of significant figures), calculate the theoretical yield of BaSO4. Show your work. filter paper +BASO4 O. 9994 filter paper -g 24241 BASO4 % yield 73

Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H₂O). If 9.82 g of sodium bromide is produced from the reaction of 47.7 g of hydrobromic acid and 7.79 g of sodium hydroxide, calculate the percent yield of sodium bromide. Round your answer to 3 significant figures. % x S Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility MacBook Air 4 F12 F9 F6 F8 F7 esc 2. Explanation F1 ! 1 Check F2 2 # 3 80 F3 $ 4 F4 % 5 A 6 & 7 8 ( 9 ) 0 F11 + 11

A 3.82-g sample of magnesium nitride is reacted with 7.73 g of water. M83N2 + 3H20 – 2NH3 + 3MgO The yield of Mgo is 3.99 g. What is the percent yield in the reaction? Atomic weights: Mg=24.31, N=14.01, H=1.01, O=15.99. Input values only with 2 decimal places.

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esc Aqueous hydrobromic acid (HBr) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium bromide (NaBr) and liquid water (H₂O). What is the theoretical yield of sodium bromide formed from the reaction of 0.81 g of hydrobromic acid and 0.17 g of sodium hydroxide? Round your answer to 2 significant figures. X 3 ? do A 99 Explanation ©2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility DII F11 FB 81 Check F2 # 80 F3 $ % MacBook Air F6 & F7 8 = ) 1 +

How much aspirin can be made from 100.0 g of salicylic acid and 100.0 g of acetic anhydride? If 122 grams of aspirin are obtained by the reaction, what is the percent yield?C7H6O3 + C4H6O3 arrow C9H8O4 + HC2H3O2 salicylic acid    acetic anhydride    aspirin     acetic acid

Please do not round off intermediate calculations. Thank you.

Ethanol (CH3CH2OH) is a clear, colorless liquid with a distinct odor and is the alcohol found in alcoholic beverages. In addition to its other physical properties (Table 1), alcohol is flammable and volatile, lending it to be used as a solvent, an antiseptic, a fuel, in thermometers, and in other laboratory procedures. As a psychoactive substance, it is one of the most widely consumed recreational drugs by humans. It suppresses certain functions of the brain while causing the classic symptoms of intoxication including slurred speech, unsteady walk, and disturbed sensory perceptions. Melting point Boiling point Density Molar mass -114.1°C 78.5°C 0.79 g/mL 46.07 g mol-1 Table 1: Physical properties of ethanol at 20°C Ethanol is produced by the fermentation of sugar. This process is catalyzed by zymase, an enzyme in yeast which changes simple sugars into ethanol and carbon dioxide. This fermentation reaction is represented by the equation in Figure 1. C6H12O6- ------> 2 CH3CH₂OH+2 CO2…

Starting with 1.5052 g of BaCl2 2H2O and excess H2SO4, how many grams of BaSO4 can be formed? If a student obtained 1.4322 g of BaSO4, what was his % yield? Pay particular attention to significant figures in these calculations. Show all work.

A mixture of 10.8 grams of NO and 14.0 grams of NO, results in the production of 16.5 grams of N2O3. What is the percent yield? NO + NO2 e → N2O3 0 O 71 4% O 60.2% O 36 9% O 85. 6%