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Why does potassium permanganate move through water?
Potassium permanganate dissolves in water to form a purple solution because it is a water-soluble compound. The movement of potassium permanganate through water is driven by diffusion, where the molecules naturally spread out to achieve a uniform concentration in the solution.
Does the pH of the solution increase decrease or stay the same when you add solid potassium chloride to dilute solution of potassium hydroxide?
The pH of the solution will decrease when solid potassium chloride is added to a dilute solution of potassium hydroxide. This is because potassium chloride is a neutral salt that will not affect the pH significantly, while potassium hydroxide is a strong base. The addition of more chloride ions will reduce the concentration of hydroxide ions in the solution, leading to a decrease in pH.
How many molecules are in 100 L of potassium hydroxide solution at STP?
The number of molecules in a given volume of solution depends on the concentration of the solute. Because the concentration is not provided, this question has too little information to answer.
Is potassium iodide solution compound or mixture?
Potassium iodide solution is a compound because it is a pure substance made up of potassium and iodine chemically bonded together in a fixed ratio.
Why excess concentration of potassium cause increases heart to become dilated and flaccid and decrease heart rate?
because if potassium is
Why can an electrical current pass through potassium hydroxide solution?
This is possible because potassium hydroxide is an electrolyte.
Why does an aqueous solution of iodine not react with potassium chloride?
Iodine is not reactive with potassium chloride in an aqueous solution because iodine is less reactive than chlorine. Chlorine is more likely to react with potassium to form potassium chloride, leaving the iodine unreacted.
How does the conductivity of a solution change in relation to its concentration?
The conductivity of a solution generally increases as its concentration increases. This is because a higher concentration means there are more ions present in the solution, which allows for better electrical conductivity.
What is the significance of the term "w/w" in chemistry when determining the concentration of a solution?
In chemistry, the term "w/w" stands for weight/weight and is used to express the concentration of a solution as the ratio of the weight of the solute to the total weight of the solution. This is significant because it provides a precise measurement of the amount of solute present in the solution, helping to accurately determine its properties and effects.
What is the relationship between the density of a sugar solution and its concentration?
The density of a sugar solution is directly related to its concentration. As the concentration of sugar in the solution increases, the density of the solution also increases. This is because the sugar molecules add mass to the solution, making it more dense.
What is the significance of a capital "M" in chemistry?
In chemistry, a capital "M" represents the unit of molarity, which is a measure of the concentration of a solution. It is significant because it helps scientists accurately measure and communicate the amount of a substance dissolved in a solution.
Why chloroform is used in the assay of potassium iodide?
Chloroform is used in the assay of potassium iodide because it forms a complex with iodine liberated from potassium iodide in presence of acid, and this complex has a pink color that can be easily detected. This color change helps in monitoring the reaction and determining the concentration of potassium iodide in the sample.
