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How can the stoichiometry be determined for a reaction that forms a gas instead of a precipitate?
If a reaction produces a gas instead of a precipitate, the volume of the evolved gas can be measured. With the volume, temperature, and pressure of the gas known, the number of evolved moles of gas can be calculated. If the pressure is fairly low, the ideal gas law should give an adequate method to calculate the number of moles:
n = PV/RT
If the number of moles of the reactants and any other products are know, the stoichiometry should be fairly straightforward to calculate - unless there are multiple reactions occurring.
What else can I help you with?
What happens when two aqueous solutions are combined in a precipitation reaction and no precipitate is formed?
When two aqueous solutions are combined in a precipitation reaction and no precipitate is formed, it means that the ions in the solutions do not react to form an insoluble compound. Instead, they remain in solution as dissolved ions. This occurs when the ions present do not have a strong tendency to form insoluble compounds.
Does mixing sodium hydroxide and calcium nitrate form a precipitate?
Mixing sodium hydroxide and calcium nitrate will not form a precipitate. Instead, it will form solutions of sodium nitrate and calcium hydroxide.
Which reaction mechanism assumptions are unimportant in describing simple ionic reactions between cations ans anions?
In simple ionic reactions between cations and anions, assumptions about reaction order and rate-determining steps are generally unimportant. This is because ionic reactions typically occur very rapidly due to the strong electrostatic interactions between oppositely charged ions. Instead, the focus is on the overall stoichiometry of the reaction and the formation of the ionic product.
Why are titrations useful?
As you are using different indicators and you will be knowing either the acid's or base's pH,so it helps in understanding the science behind the pH.As you can find now,whether your area water has some stagnate water mixed with it or not could be determined by you,Instead of going to any government labs or technologies.It is something practical and the other is it is the basic and important step to start chemistry.
Why can't sulfuric acid be used instead of hydrochloric acid in the barium chloride test?
Sulfuric acid cannot be used in place of hydrochloric acid in the barium chloride test because sulfuric acid would react with barium chloride to form insoluble barium sulfate. This would interfere with the precipitation reaction used to detect the presence of sulfates in the sample. Hydrochloric acid is preferred because it does not interfere with this reaction.
What chemIcal reaction can produce a solid?
A chemical reaction that can produce a solid is a precipitation reaction. In this type of reaction, two aqueous solutions containing ions react to form an insoluble solid compound called a precipitate. The solid precipitate forms as a result of the ions combining and remaining in a solid state instead of staying dissolved in the solution.
What happens when two aqueous solutions are combined in a precipitation reaction and no precipitate is formed?
When two aqueous solutions are combined in a precipitation reaction and no precipitate is formed, it means that the ions in the solutions do not react to form an insoluble compound. Instead, they remain in solution as dissolved ions. This occurs when the ions present do not have a strong tendency to form insoluble compounds.
Why look for black precipitate in the butt instead of on the surface of an H2S test?
The black precipitate usually sink to the bottom which the reaction took place in. The reaction takes place at the bottom because it only occurs under anaerobic conditions, and it does not sink to the bottom as it only occurs at the bottom, not around oxygen at the top of the tube.
Why look for black precipitation in the butt instead of on the surface of an H2S test?
The black precipitate usually sink to the bottom which the reaction took place in. The reaction takes place at the bottom because it only occurs under anaerobic conditions, and it does not sink to the bottom as it only occurs at the bottom, not around oxygen at the top of the tube.
What is the relationship between an enzyme and the equilibrium point of reaction it catalyzes?
Enzymes do not affect the equilibrium point of a reaction they catalyze. Instead, enzymes increase the rate of reaction by lowering the activation energy barrier. The equilibrium point of a reaction is determined by the free energy difference between products and reactants at equilibrium, which remains unchanged in the presence of an enzyme.
Does mixing sodium hydroxide and calcium nitrate form a precipitate?
Mixing sodium hydroxide and calcium nitrate will not form a precipitate. Instead, it will form solutions of sodium nitrate and calcium hydroxide.
Does barium nitrate and sodium chloride for a precipitate?
It depends on the solution in which the reaction producing it occurs. A precipitate is formed when a product of a reaction in an aqueous solution is not soluble. Instead of being dissolved in the solution, it 'precipitates' into a solid, which often is suspended in the solution and may cause a color change. Ba(OH)2 is soluble in water, and therefore will not produce a precipitate in water unless the water is over-saturated or at low temperatures.
Which reaction mechanism assumptions are unimportant in describing simple ionic reactions between cations ans anions?
In simple ionic reactions between cations and anions, assumptions about reaction order and rate-determining steps are generally unimportant. This is because ionic reactions typically occur very rapidly due to the strong electrostatic interactions between oppositely charged ions. Instead, the focus is on the overall stoichiometry of the reaction and the formation of the ionic product.
What precipitate is formed when magnesium and silver nitrate mix?
Silver metal, the magnesium displaces the silver from solution. It's not really a "precipitate" exactly; the silver forms deposits on the surface of the magnesium instead of crystallizing in the solvent.
What endothermic reaction?
An endothermic reaction is a chemical reaction in which energy (heat, light, etc.) is absorbed instead of released as in a exothermic reaction.
Potassium iodide plus lead nitrate?
When potassium iodide is mixed with lead nitrate, a double displacement reaction occurs. The products formed are lead iodide and potassium nitrate. Lead iodide is a yellow precipitate that forms during the reaction.
Why are titrations useful?
As you are using different indicators and you will be knowing either the acid's or base's pH,so it helps in understanding the science behind the pH.As you can find now,whether your area water has some stagnate water mixed with it or not could be determined by you,Instead of going to any government labs or technologies.It is something practical and the other is it is the basic and important step to start chemistry.
