The top loading balance is used to weigh out 1.13 g of salicylic acid as a reactant in the synthesis reaction. Given that the molar mass of salicylic acid is 138.1 g/mol, how many mmols is this equivalent to ? Enter a numeric answer only, to the correct number of significant figures. Do not include units.
The top loading balance is used to weigh out 1.13 g of salicylic acid as a...
1. Mass of salicylic acid (g) 2.0089 5.10ml & 2. Volume of acetic anhydride (mL) Limiting reactant is (circle one): Salicylic Acid or Acetic Anhydride Calculation for Limiting Reactant: 3. Theoretical yield of aspirin (9) Calculation for Theoretical Yield of aspirin: 4. Mass of filter paper 0.3369 N 5. Mass of filter paper + aspirin 2.471g 6. Experimental Yield of aspirin (g) 7. Percent Yield Synthesis of Aspirin An early oral pain reliever, salicylic acid, was determined to cause stomach...
Mass of salicylic acid: 3.112g volume of acetic anhydride: 7.40ml Density of acetic anhydride = 1.08 g/ml molar mass of Salicylic acid in g/mol is 138.12 1. Calculate the moles of Salicylic acid used in the reaction: Round your to 4 significant fig: 2. Calculate the mass of acetic anhydride used in the reaction in g: Round to 3 sig. figures
Synthesis of Aspirin Mass of salicylic acid 2.0024 g Mass of synthesized aspirin 2.5125 g Calculate the theoretical mass and percent yield using the following (fill in missing information): (mass of salicylic acid)2.0024 1 mol salicylic acid 1 mol aspirin (MW of aspirin) = Enter answer (MW of salicylic acid) 1 mol salicylic acid 1 mol aspirin (mass of synthesized aspirin)2.5124 x 100% = Enter answer (theoretical mass of aspirin) Excluding lab error and excess water, is it possible to...
Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.245 gram piece of metal and combine it with 58.7 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 42.75 g/mol, and you measure that the reaction absorbed 160 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer numerically to three significant figures...
Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.202 gram piece of metal and combine it with 76.3 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 48.37 g/mol, and you measure that the reaction absorbed 121 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer numerically to three significant figures...
Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.296 gram piece of metal and combine it with 57.5 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 50.61 g/mol, and you measure that the reaction absorbed 164 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer numerically to three significant figures...
A student measures out exactly 0.0920 g of salicylic acid and carries out an aspirin synthesis using salicylic acid, acetic anhydride, heat, and an acid catalyst. Salicylic acid is the limiting reagent in this reaction, which yields 0.0900 g of aspirin. What is the percent yield for the reaction?
•Theoretical yield of aspirin: Theoretical yield= mass salicylic acid used*( 1 ??? ?7?6?3 ? ?7?6?3 ( (1 mol C7H6O3)/( g C7H6O3) )*(1 ??? ?9?8?41 ??? ?7?6?3(1 mol C9H8O4)/(1 mol C7H6O3))( ? ?9?8?41 ??? ?9?8?4( g C9H8O4)/(1 mol C9H8O4)) **The molar masses of the salicylic acid and the acetylsalicylic acid will need to be calculated using the periodic table before finding the theoretical yield. % yield of aspirin % yield= actual yield/theoretical yield * 100 The actual yield would be the observed mass...
(t) How many grams of water will be produced from the combustion of 6.07 g of ethane gas with 10.6 g of oxygen gas? (u) How many grams of the excess reactant remain after the reaction has gone to completion? Molar mass of ethane gas: g/mol Molar mass of oxygen gas: g/mol Molar mass of water: g/mol Answer to (t): g of H2OH2O Answer to (u): g of excess reactant Evaluate Check your molar mass for ethane gas. Be sure...
10. Calculate the theoretical yield of aspirin using 4.00 g of salicylic acid as the starting material. Assume acetic anhydride is in excess. (Hint: from the mass of salicylic acid acid use, how many moles of salycilic acid are present intitially? What is the salycilic acid : acetylsalicylic acid molar ratio? How many moles of acetylsalicylic acid are formed assuming 100% yield? Based on this abount of moles, how many grams of acetylsalicylic acid are formed? (this is the theoretical...