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What is the percent yield of carbon dioxide if 25 grams of magnesium carbonate react with excess hydrochloric acid, and 7.5 grams of carbon dioxide are produced? The theoretical yield of carbon dioxide for this reaction is 10 grams.

asked Mar 1 in Chemical reactions by TheScientist (138k points)

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What is the yield of acetylsalicylic acid produced when 5 grams of salicylic acid is reacted with excess acetic anhydride, assuming a theoretical yield of 7 grams and an actual yield of 4.5 grams?

asked Mar 1 in Chemical synthesis by TheScientist (138k points)

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What is the percent yield of a chemical reaction if you start with 50 grams of reactant A, but only produce 35 grams of product B, when the balanced equation indicates that you should produce 40 grams of product B?

asked Mar 1 in Chemical reactions by TheScientist (138k points)

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Sure. Here's a question:How can you calculate the oxidation number of an element in a compound and use it to determine if a redox reaction has occurred? Provide an example of a redox reaction and identify the oxidizing and reducing agents involved.

asked Mar 1 in Chemical reactions by TheScientist (138k points)

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Suppose you are given 500 mL of 0.1 M acetic acid and 0.1 M sodium acetate buffer solution. You add 2 mL of 1 M hydrochloric acid to the buffer solution. Calculate the new pH of the solution and explain how the buffer system resists changes in pH.

asked Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the monolayer capacity of a sample of activated alumina with a surface area of 200 m2/g, using the BET theory of multilayer adsorption and assuming a specific surface area of 16.2 × 10-20 m2 for nitrogen at 77 K?

asked Mar 1 in Surface Chemistry by TheScientist (138k points)

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What is the molar yield of the 2,4,6-trinitrotoluene product obtained from the reaction of 100 grams of toluene with excess nitric acid?

asked Mar 1 in Chemical synthesis by TheScientist (138k points)

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What is the molar mass of sodium sulfate decahydrate (Na2SO4.10H2O)?

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What is the molar mass of sodium chloride (NaCl)? Show step-by-step calculations in determining the answer.

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What is the molar mass of magnesium chloride (MgCl2)? Show the calculation method.

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What is the molar mass of Calcium Carbonate (CaCO₃)? Show your calculations.

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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1 answer 26 views

What is the molar mass of calcium carbonate (CaCO3)?

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What is the molar mass of Ba(NO3)2?

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What is the molar mass of ammonium sulfate ((NH4)2SO4)? Round your answer to the nearest hundredth of a gram.

asked Mar 1 in Inorganic Chemistry by TheScientist (138k points)

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What is the minimum amount of heat energy required to vaporize 50 grams of water at its boiling point, given the enthalpy of vaporization of water to be 40.7 kJ/mol?

asked Mar 1 in ThermoChemistry by TheScientist (138k points)

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What is the minimum amount of energy required to break H2O molecules in a system consisting of 100 water molecules at a temperature of 298 K? Use statistical mechanics and thermodynamic ensembles to solve the problem.

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the maximum yield of p-nitroaniline that can be obtained when 50g of aniline is reacted with an excess of nitric acid to form p-nitroaniline, assuming that the reaction goes to completion and all other reaction conditions remain constant?

asked Mar 1 in Chemical synthesis by TheScientist (138k points)

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What is the maximum yield of benzocaine that can be obtained from the reaction between p-aminobenzoic acid and ethanol, assuming 100% conversion of the reactants and a starting mass of 5 grams of p-aminobenzoic acid with excess ethanol?

asked Mar 1 in Chemical synthesis by TheScientist (138k points)

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What is the maximum work that can be obtained in a non-equilibrium process with a system at a given temperature and pressure, if the entropy change of the system is known? Calculate the answer assuming ideal gas behavior.

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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What is the maximum amount of work that can be obtained from a reversible isothermal expansion of a gas at 25°C when the initial pressure is 4.00 atm and the final pressure is 1.00 atm and the initial volume of the gas is 3.00 L?

asked Mar 1 in Physical Chemistry by TheScientist (138k points)

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