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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).
Gases that are insoluble in water, such as hydrogen, oxygen, and helium, can be collected over water. This is because they will not dissolve in the water and can be easily collected in a container above the water surface.
Many gas samples are not pure but consist of mixtures of ggases. The air in our atmosphere, for example, is a mixture containing 78% nitrogen, 21% oxygen, 0.9% argon,0.04% carbon dioxide, and a few other gases in smaller amounts. So the answer is No it can't be pure gas.
Source: Introductory Chemistry, 3rd ed by Nivaldo J. Tro, Pg 384
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Why is it that HCL gas cannot be collected over water?
Hydrochloric acid (HCl) gas is highly soluble in water, meaning it will readily dissolve in water to form hydrochloric acid solution. This will make it difficult to collect pure HCl gas, as it will mix with the water and form an acidic solution. In addition, the reaction between HCl gas and water can generate heat, which may lead to a dangerous build-up of pressure in the collection vessel.
Why is it helpful for a gas collection tube to be dry?
A dry gas collection tube helps to prevent moisture from reacting with the gas being collected, which could alter the composition of the gas. This is important when trying to accurately analyze the properties of the gas sample.
What happens to the gas collected in the inverted funnel of sublimate?
The gas collected in the inverted funnel of sublimate would be trapped there until it can be released or transferred for further analysis. The gas may undergo further reactions or be used in various experiments depending on the specific context in which it was collected.
Is using a measuring cylinder or gas syringe better to use when the gas is soluble?
Using a gas syringe is typically better when the gas is soluble because it allows for direct measurement of the volume of gas collected without worrying about gas dissolving in the liquid. Measuring cylinders, on the other hand, may result in inaccurate readings due to the dissolution of gas in the liquid.
What is rain water may aproveate turning into gas?
Rainwater can evaporate or turn into a gas when exposed to heat from the sun or warm air. This process is known as evaporation, where the liquid water changes into water vapor, which is a gaseous state of water.
Why is ammonia gas not collected over water?
Ammonia gas reacts with water to form ammonium hydroxide, a basic solution. This reaction reduces the amount of ammonia gas collected and may lead to inaccuracies in the experimental results. To prevent this, ammonia gas is typically collected using an alternative method such as downward displacement of air or through a gas syringe.
Why is it that HCL gas cannot be collected over water?
Hydrochloric acid (HCl) gas is highly soluble in water, meaning it will readily dissolve in water to form hydrochloric acid solution. This will make it difficult to collect pure HCl gas, as it will mix with the water and form an acidic solution. In addition, the reaction between HCl gas and water can generate heat, which may lead to a dangerous build-up of pressure in the collection vessel.
Why is hydrogen chloride not collected over water?
Hydrogen chloride can react with water to form hydrochloric acid, which is a strong acid. This reaction can be vigorous and may release fumes or splatter acid. Collecting hydrogen chloride over water can also lead to contamination of the gas with water vapor.
Why is it helpful for a gas collection tube to be dry?
A dry gas collection tube helps to prevent moisture from reacting with the gas being collected, which could alter the composition of the gas. This is important when trying to accurately analyze the properties of the gas sample.
What happens to the gas collected in the inverted funnel of sublimate?
The gas collected in the inverted funnel of sublimate would be trapped there until it can be released or transferred for further analysis. The gas may undergo further reactions or be used in various experiments depending on the specific context in which it was collected.
When is francium a gas?
At a temperature over 677 0C francium may be a gas.
Can pure water be extracted from skim milk?
Yes. The water may be boiled off or evaporated by heating in the usual manner, and then collected on glassware.
What may have oceans to form as Earth's atmosphere changed?
Oceans formed on Earth as its atmosphere cooled and water vapor in the atmosphere condensed into liquid water, which then collected in low-lying areas to form bodies of water. Over time, continuous rainfall helped to fill these bodies of water, eventually forming oceans.
Were did residents of buildings in the slums get their water?
Residents in slums may get their water from communal taps, standpipes, or shared wells within the community. In some cases, water may also be collected from nearby rivers or streams, or purchased from water vendors.
What is a liquid or a gas?
Water may be solid (ice), a liquid (water) or a gas (water vapour - or steam).The form it adopts depends on the ambient pressure and temperature.
As water moves through the water cycle it may become?
Solid, liquid, or gas.
Why the spoiled egg floats on water?
Spoiled eggs may float in water due to the accumulation of gas inside the egg as it decomposes. This gas increases the overall buoyancy of the egg, causing it to float instead of sinking. Additionally, the eggshell may become more porous over time, allowing more air to enter the egg.
