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Why can ethyne be collected by water displacement?
Ethene is able to be collected over water because it is slightly soluble in water. The gas is made from ethanol vapor that is dehydrated by passing over a heated catalyst.
Why is it that HCL gas cannot be collected over water?
because HCl is highly soluble in water and forms hydrochloric acid henceforth it cannot be collected over water
Which gas may be collected over water?
No, only those that do not dissolve in water, or they will dissolve in the water rather than bubble through it to be collected. Examples of gases that can be collected over water include:- Hydrogen, nitrogen, oxygen (only slightly soluble), methane, carbon monoxide. Examples of gases that can just be collected over water (quie soluble - so much will be dissolved in the water as well):- Nitrogen dioxide, carbon dioxide, chlorine Examples of gases that are too soluble to be collected over water:- hydrogen chloride, ammonia (which is the most soluble of all gases) Both of these gases are collected by displacement of air - hydrogen chloride by the gas jar being held as in a glass - with the base on the table - because it is heavier than air (chlorine and carbod dioxide can be collected like this too) and and ammonia by the gas jar being held upside down to trap the ammonia (as it is lighter than air).
How will you test the gas collected in electrolysis of water?
pop test for hydrogen at -ve electrode glowing splint test for oxygen at +ve electrode
Why is carbon dioxide collected by downwards delivery?
Carbon dioxide (CO2) is collected by downwards delivery because it is heavier than air. Almost all of our atmosphere is nitrogen (molecular mass = 28) and oxygen (molecular mass = 32), but CO2 has a molecular mass of 40.
If oxygen gas is collected over water at temperature of 10C and pressure of 1.02 ATM and the volume of gas plus water vapor collected is 293 mL then what volume of oxygen at STP was collected?
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Why is the volume of gas collected twice of the volume of other gas when electric current is passed through water?
When an electric current is passed through water, it undergoes electrolysis, which breaks water molecules into hydrogen and oxygen gases. The ratio of hydrogen to oxygen gas produced is 2:1, meaning that for every two volumes of hydrogen gas collected, one volume of oxygen gas is collected. Therefore, the volume of gas collected is twice as much for hydrogen compared to oxygen gas.
Why can ethyne be collected by water displacement?
Ethene is able to be collected over water because it is slightly soluble in water. The gas is made from ethanol vapor that is dehydrated by passing over a heated catalyst.
Why is ammonia not collected over water?
Because ammonia is quite soluble in water, so that not all of the gas produced could be collected over water.
Why is it that HCL gas cannot be collected over water?
because HCl is highly soluble in water and forms hydrochloric acid henceforth it cannot be collected over water
Why the hydrogen gas collected from the reaction of the metal with acid is referred to as wet hydrogen gas?
It is called wet hydrogen gas because it is collected over water.
Why is ammonia gas not collected over water?
Because ammonia is quite soluble in water, so that not all of the gas produced could be collected over water.
Why the hydrogen gas collected from the reaction of the metal with acid is called wet hydrogen gas?
Wet hydrogen is collected over a water surface.
Why is double the amount of gas collected in one of the test tube on electrolysis of water name the gas?
Water contains two parts hydrogen and one part oxygen (2 H and 1 O = H2O) Because of this, the amount of hydrogen and oxygen produced during electrolysis of water is in a 2:1 ratio. In electrolysis process, hydrogen goes to one test tube and oxygen goes to another. Because Water contains 2 part hydrogen, the amount of gas collected in one tube is double the amount collected in the other.
Which gas may be collected over water?
No, only those that do not dissolve in water, or they will dissolve in the water rather than bubble through it to be collected. Examples of gases that can be collected over water include:- Hydrogen, nitrogen, oxygen (only slightly soluble), methane, carbon monoxide. Examples of gases that can just be collected over water (quie soluble - so much will be dissolved in the water as well):- Nitrogen dioxide, carbon dioxide, chlorine Examples of gases that are too soluble to be collected over water:- hydrogen chloride, ammonia (which is the most soluble of all gases) Both of these gases are collected by displacement of air - hydrogen chloride by the gas jar being held as in a glass - with the base on the table - because it is heavier than air (chlorine and carbod dioxide can be collected like this too) and and ammonia by the gas jar being held upside down to trap the ammonia (as it is lighter than air).
How can you prove plant release oxygen?
The easiest way is to use an aquatic plant (one that grows underwater). In sunlight this will release bubbles - collect the bubbles in an upturned (water filled) jar placed over the plant. Once you have collected the gas use the oxygen test (relight a smoldering taper) on the gas to see if it is oxygen.
How will you test the gas collected in electrolysis of water?
pop test for hydrogen at -ve electrode glowing splint test for oxygen at +ve electrode
