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1. Gas in the tube may diffuse into the water droplets in the tube. 2. It may affect the volume count in the collection tube.

3. Some substances are sensitive to water and may give different results when water is present

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13y ago

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How do you collect a dry sample of methane?

Methane is insoluble in water, and it is less dense than air. Introduce moist methane via a delivery tube from one end of U shaped tube. The u shaped tube should contain fused calcium chloride. Dry methane can then be collected from the other end of the u shaped tube.


How could a sample gas be collected at the positive electrode when using electrolysis for copper?

To collect a sample gas at the positive electrode during electrolysis for copper, a gas collection tube can be placed directly above the positive electrode. As the electrolysis is carried out, the gas generated at the positive electrode will rise and move into the collection tube, allowing for easy sampling and analysis.


How is dry hydrogen collected?

Dry hydrogen can be collected by passing the gas through a desiccant, such as calcium chloride or silica gel, to remove any moisture. Once the moisture is removed, the dry hydrogen gas can be collected in a gas collection apparatus such as a gas syringe or a gas bag.


What are some collecting gas over water practice problems that can help improve understanding of this concept?

One practice problem to improve understanding of collecting gas over water is calculating the volume of gas collected when the water level in the gas collection tube is higher than the water level outside. Another practice problem is determining the pressure of the gas collected by using the difference in water levels in the gas collection tube and outside. These exercises can help reinforce the principles of gas collection over water and the relationship between pressure, volume, and temperature.


How can one efficiently collect gas over water in a laboratory setting?

To efficiently collect gas over water in a laboratory setting, one can use a gas collection tube or a gas syringe. The gas can be produced in a reaction vessel and then collected by displacing the water in the tube or syringe. This method allows for the gas to be collected without mixing with the water.

Related Questions

How do you collect a dry sample of methane?

Methane is insoluble in water, and it is less dense than air. Introduce moist methane via a delivery tube from one end of U shaped tube. The u shaped tube should contain fused calcium chloride. Dry methane can then be collected from the other end of the u shaped tube.


How could a sample gas be collected at the positive electrode when using electrolysis for copper?

To collect a sample gas at the positive electrode during electrolysis for copper, a gas collection tube can be placed directly above the positive electrode. As the electrolysis is carried out, the gas generated at the positive electrode will rise and move into the collection tube, allowing for easy sampling and analysis.


How is dry hydrogen collected?

Dry hydrogen can be collected by passing the gas through a desiccant, such as calcium chloride or silica gel, to remove any moisture. Once the moisture is removed, the dry hydrogen gas can be collected in a gas collection apparatus such as a gas syringe or a gas bag.


What are some collecting gas over water practice problems that can help improve understanding of this concept?

One practice problem to improve understanding of collecting gas over water is calculating the volume of gas collected when the water level in the gas collection tube is higher than the water level outside. Another practice problem is determining the pressure of the gas collected by using the difference in water levels in the gas collection tube and outside. These exercises can help reinforce the principles of gas collection over water and the relationship between pressure, volume, and temperature.


How can one efficiently collect gas over water in a laboratory setting?

To efficiently collect gas over water in a laboratory setting, one can use a gas collection tube or a gas syringe. The gas can be produced in a reaction vessel and then collected by displacing the water in the tube or syringe. This method allows for the gas to be collected without mixing with the water.


Why doesn't the reaction begin immediately after the gas collection tube is inverted?

The reaction doesn't begin immediately after the gas collection tube is inverted because the reactants need time to mix and come into contact with each other. Additionally, there may be a small delay as the reactants transition from one phase to another, such as from solid to gas.


What is the substance used to dry ammonia?

By drying ammonia, I guess you mean ammonia gas.. To dry ammonia gas you pass it through a drying tube of sorts filled with KOH or NaOH pellets. This method is for almost dry gas, if you are getting your ammonia gas from a ammonia/water solution you probably have to predry it with anhydrous sodium sulfate or some other sort of dessicant before you lead it through the KOH/NaOH pellet filled drying tube.


What are the uses of calcium chloride tube?

A calcium chloride tube is commonly used to dry gases by absorbing water vapor. It is often used in laboratory settings or industrial processes where dry conditions are necessary for accurate measurements or reactions. The tube works by passing the gas through the calcium chloride, which absorbs the moisture, leaving the gas dry.


What brown coloured gas evolveed when lead nitrate crystals are heated in adry test tube?

The brown colored gas that evolves when lead nitrate crystals are heated in a dry test tube is nitrogen dioxide.


What is a gas tube used for in a science?

what is a gas measuring tube


What substance would be in the test tube if the gas was hydroegn?

If the gas in the test tube is hydrogen, the substance inside would be hydrogen gas since the gas in the tube is hydrogen itself.


What happens to the molecules of the trapped gas when its height in the tube becomes zero?

When the height of the trapped gas in the tube becomes zero, the gas molecules continue to move freely within the tube. Since no more gas can flow into or out of the tube, the pressure inside the tube increases. The gas molecules exert pressure on the walls of the tube evenly in all directions.