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Why should enough KHT be added to the KCl-NaCl solution to ensure that some solid remains undissolved after the 20 minute stirring?
Adding enough KHT ensures that a saturated solution is formed, which is necessary to determine the endpoint of the titration accurately. Some solid should remain undissolved after the 20-minute stirring to ensure that all the KCl has reacted with the silver ions before titration begins.
What else can I help you with?
How can you tell if an ionic compound does not dissociate?
If an ionic compound does not dissociate, it means it remains in an undissolved form when placed in a solvent. This can be determined by observing if the compound stays as a solid, does not conduct electricity in solution, and does not change in appearance or properties.
What is the concentration of the SO42- ion that remains in solution after the reaction is complete?
The concentration of the SO42- ion that remains in solution after the reaction is complete is determined by the stoichiometry of the reaction and the initial concentration of the reactants.
What is the concentration of Na ion that remains in solution after the reaction is complete?
The concentration of Na ion that remains in solution after the reaction is complete is determined by the stoichiometry of the reaction and the initial concentration of Na ions.
What will happen after water is added to the salt and sand mixture?
When water is added to a salt and sand mixture, the salt will dissolve in the water, creating a saltwater solution. The sand, being insoluble, will remain as a solid at the bottom of the container. This allows for the separation of the two components through a process like filtration.
Suppose you prepare 500 mL of a 0.10 M solution of some salt and then spill some of it What happens to the concencentration of the solution left in the container?
If the spill occurs after solution of the salt is complete, the concentration of the solution left in the container remains unchanged, because by definition of solution, the amounts of solvent and solute spilled will have the same proportions as in the original solution.
What visible evidence indicates that a solution is saturated?
If more solute is added to the solution and the solute remains undissolved, then you know that solution is saturated.
Which one of the following can be separated by adding water stirring and filtering?
A mixture of sand and salt can be separated by adding water, stirring, and then filtering. When water is added, the salt dissolves, while the sand remains undissolved. Stirring ensures the salt is fully dissolved, and filtering allows you to separate the sand from the saltwater solution. After filtering, the salt can be recovered by evaporating the water.
When some of the sugar added to iced tea remains undissolved at the bottom of the glass is the solution saturated?
yes
What is it called when undissolved particles are so?
When some of the material being dissolved remains it's called a saturated solution
How do you know that a solution is already saturated?
A solution is considered saturated when it has reached the maximum amount of solute that can be dissolved at a given temperature. This can be determined by observing that no more solute dissolves and there may be visible undissolved solute at the bottom of the container. Additionally, the concentration of the solute in the solution remains constant at saturation.
Why molarity of a solution remains constant?
Molality of a solution remains constant as mass of a solution independent of temperature.
How can you tell whether a mixture is a solution or a suspension by 1 freezing it 2 evaporating off the liquid 3 stirring it 4 letting the mixture stand for a while?
Freezing it: If upon freezing, a solution forms a homogeneous solid, it is a solution. If it separates into distinct phases, it is a suspension. Evaporating off the liquid: If after evaporating the liquid, only solid components remain, it is a solution. If there are solid particles left behind, it is a suspension. Stirring it: If the mixture remains visibly the same after stirring, it is likely a solution. If visible particles settle out, it is a suspension. Letting the mixture stand for a while: If the components do not settle out upon standing, it is likely a solution. If visible particles settle to the bottom, it is a suspension.
How could you use the solubility of a substance to make a saturated solution?
To create a saturated solution, you can start by adding a known amount of the substance to a solvent, such as water, and stir it until no more dissolves. The solubility of the substance at a specific temperature will determine how much can be dissolved; when the solution reaches this limit, any excess solid will remain undissolved at the bottom. By ensuring that the solution remains at this equilibrium point, you can maintain a saturated solution. Additionally, adjusting temperature can alter solubility, allowing for more or less solute to be dissolved.
How you can prepare saturated solution of glucose?
To prepare a saturated solution of glucose, simply add an excess of glucose to a specific amount of water at a certain temperature while continuously stirring until no more glucose dissolves. The solution is saturated when no more glucose can be dissolved and some solid remains at the bottom.
How can you separate Fe from Ag?
One way to separate iron (Fe) from silver (Ag) is to use a chemical reaction. By treating a mixture of the two metals with nitric acid, silver will dissolve as silver nitrate while iron remains unaffected. The solution can then be filtered to separate the dissolved silver from the undissolved iron.
What is the product of the equilibrium constant keq and concentrated of undissolved solid?
The equilibrium constant (K_eq) is a measure of the ratio of the concentrations of products to reactants at equilibrium for a given reaction. When dealing with undissolved solids, their concentration is considered constant and does not appear in the expression for K_eq. Therefore, the product of K_eq and the concentration of undissolved solid remains constant and does not affect the value of K_eq itself, as K_eq is defined in terms of the aqueous or gaseous phases only.
How do you prepare neutral ferric chloride solution?
To prepare a neutral ferric chloride solution, dissolve ferric chloride hexahydrate (FeCl₃·6H₂O) in distilled water while stirring. Adjust the pH to around 7 using a dilute sodium hydroxide (NaOH) solution to neutralize any acidity. Ensure the solution remains clear and free of precipitates. Finally, dilute to the desired concentration with distilled water.
