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A simple whole animal respirometer designed to measure oxygen uptake or CO2 release consists of a sealed container with the living specimen together with a substance to absorb the carbon dioxide given off during respiration, such as soda lime pellets or cotton wads soaked with potassium hydroxide.
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How do you prepare 0.1 n alcoholic potassium hydroxide solution?
To prepare a 0.1 N alcoholic potassium hydroxide solution, you would mix potassium hydroxide pellets with a calculated amount of alcohol, such as ethanol, in a specific volume to achieve the desired concentration. It is important to handle potassium hydroxide with care due to its corrosive nature, and protective equipment should be worn during preparation. After mixing the components thoroughly, the solution should be standardized using a suitable acid to verify its concentration.
Davy discovered this element using a battery?
Davy discovered the element potassium by isolating it through the electrolysis of molten potassium hydroxide using a voltaic pile, a type of battery, in 1807.
Acid and base that makes potassium iodide?
To make potassium iodide, you would need to first react iodine with potassium hydroxide. This will create potassium iodate, which can then be reduced to potassium iodide using a reducing agent like sulfur dioxide or hydriodic acid.
Will using potassium hydroxide during electrolysis produce chlorine gas?
If you mean just potassium hydroxide or its aqueous solution, then no, because their are no chlorine atoms present. The only elements present are potassium, hydrogen and oxygen. Molten KOH produces potassium at the cathode and oxygen at the anode, and the solution gives hydrogen at the cathode and oxygen at the anode.
How can neutralized potassium hydroxide?
To neutralize potassium hydroxide, add an acid such as hydrochloric acid (HCl) in a 1:1 stoichiometric ratio until the pH is close to 7. The reaction will produce water and potassium chloride salt. Use a pH meter to monitor and ensure complete neutralization.
How do you prepare 0.1 n alcoholic potassium hydroxide solution?
To prepare a 0.1 N alcoholic potassium hydroxide solution, you would mix potassium hydroxide pellets with a calculated amount of alcohol, such as ethanol, in a specific volume to achieve the desired concentration. It is important to handle potassium hydroxide with care due to its corrosive nature, and protective equipment should be worn during preparation. After mixing the components thoroughly, the solution should be standardized using a suitable acid to verify its concentration.
Davy discovered this element using a battery?
Davy discovered the element potassium by isolating it through the electrolysis of molten potassium hydroxide using a voltaic pile, a type of battery, in 1807.
Acid and base that makes potassium iodide?
To make potassium iodide, you would need to first react iodine with potassium hydroxide. This will create potassium iodate, which can then be reduced to potassium iodide using a reducing agent like sulfur dioxide or hydriodic acid.
Will using potassium hydroxide during electrolysis produce chlorine gas?
If you mean just potassium hydroxide or its aqueous solution, then no, because their are no chlorine atoms present. The only elements present are potassium, hydrogen and oxygen. Molten KOH produces potassium at the cathode and oxygen at the anode, and the solution gives hydrogen at the cathode and oxygen at the anode.
How can neutralized potassium hydroxide?
To neutralize potassium hydroxide, add an acid such as hydrochloric acid (HCl) in a 1:1 stoichiometric ratio until the pH is close to 7. The reaction will produce water and potassium chloride salt. Use a pH meter to monitor and ensure complete neutralization.
How did Sir Humphrey Davis discover potassium?
Sir Humphrey Davy discovered potassium in 1807 by isolating the element from potassium hydroxide using electrolysis. He used a voltaic pile to pass an electric current through the compound, leading to the isolated element being deposited on a cathode.
Was potassium discovered using a battery?
Yes, by the electrolysis of molten potassium hydroxide in a voltaic pile. Davy discovered this element with a battery. Sorry if the answer's not quite accurate!!!
What is more reactive potassium hydroxide or sodium hydroxide?
Well...nothing is so black and white. Some things react differently in different situations. However...it is most likely you'd be using both of these as bases, and as such, KOH - potassium hydroxide - is likely slightly more reactive than NaOH. This is by comparison of their pKa values alone, and many things may factor into reactivity. If anything, they're both very similar in the grand scheme of things.
What volume of a 0.550 M solution of potassium hydroxide can be made with 10.7g of potassium hydroxide?
To calculate the volume, first find the number of moles of potassium hydroxide using its molar mass. Then use the molarity to calculate the volume. Calculate moles of KOH: 10.7g / 56.11g/mol = 0.191 moles KOH Volume = moles / Molarity = 0.191 moles / 0.550 mol/L = 0.348 L = 348 mL
Chemical test can distinguish sodium carbonate form potassium hydroxide?
- use a flame test to distinguish between sodium and potassium - use flame photometry to determine sodium and potassium - heat sodium carbonate and collect the gas in a beaker with water: the gas released is carbon dioxide; see the bubbles. Measure the pH; it will be more than 7.
What volume of 1.050 M potassium hydroxide is required to react with 22.2 ml of 0.755 M nitrous acid?
First, calculate the number of moles of nitrous acid using the concentration and volume. Then, based on the balanced chemical equation for the reaction between potassium hydroxide (KOH) and nitrous acid (HNO2), determine the mole ratio between them. Use this ratio to find the volume of potassium hydroxide required to react with the calculated moles of nitrous acid.
The volume in ml of 2.26m potassium hydroxide solution that contains 8.42g of solute?
To find the volume of 2.26M potassium hydroxide solution that contains 8.42g of solute, you can use the formula: moles = mass / molar mass. First, calculate the moles of solute using the given mass and molar mass of potassium hydroxide. Then, use the molarity (2.26M) to find the volume of the solution using the formula: volume = moles / molarity.
