(a)
Interpretation:
The equilibrium constant for the reaction is to be determined along with the reason for the completion of this reaction.
Concept introduction:
The value of constant at equilibrium state is defined as the equilibrium constant. An equilibrium constant is achieved when the forward reaction and backward reactions are equal. The formula used is:
(b)
Interpretation:
To determine the reason for the statement that NH3(aq) cannot be used for fixing photographic film.
Concept introduction:
A stability constant or formation constant is somewhat like the equilibrium constant which is obtained when the forward
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General Chemistry: Principles and Modern Applications (11th Edition)
- To determine the amount of magnetite. Fe3O4, in an impure ore, a 1.5419 g sample is dissolved in concentrated HCl, resulting in a mixture of Fe2+ and Fe3+. After adding HNO3 to oxidize Fe2+ to Fe3+ and diluting with water, Fe3+ is precipitated as Fe(OH)3 using NH3. Filtering, rinsing and igniting the ppt provides 0.8525 g of pure Fe2O3. Calculate % Fe in the sample.arrow_forwardWhy are metals resposbile for the production of colour upon heatingarrow_forwardshow solutions 1. 10.000 grams of Clay was analyze for Iron content. Its moisture content is 2.00%. The sample was digested with oxidizing acids to convert all Iron into Fe3+. An excess of NH4OH was added and yielded a gelatinous precipitate of Fe(OH)3. The sample was then ignited in a furnace and yielded 0.1212 grams of residue as Fe2O3. Calculate the percentage of Iron. 2. A 0.3000 gram sample contains only KCl and CaCl2. The sample was dissolved in water and yielded 0.5000 grams of AgCl upon addition of excess AgNO3 reagent. Calculate the percentage of KCl and MgCl2.arrow_forward
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- Copper matte is charged into a silica lined converter in extraction of copper. What is the role of silica lining here?arrow_forward4. Limestone containing 87% CaCO3, 6% MgCO3, 3% hematite, 2% silica and remaining water is calcined in hot water to vaporize the water and separate CO2 from the carbonates. The CaO and MgO created by the reaction leave in the solid calcine, along with hematite and silica. How many kilograms of calcine will be produced per ton of limestone?arrow_forward1. Research on and discuss the basic properties and uses of MIC (methyl isocyanate). What type/s of precautions should be taken when working, dealing and storing MIC?arrow_forward
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- Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,