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Why concentrated hydrochloric acid is not used to prepare hydrogen gas in laboratory?
Concentrated hydrochloric acid (HCl) is not typically used to prepare hydrogen gas in the laboratory because it can react violently with some metals, leading to the release of hazardous hydrogen gas and potentially causing explosions. Dilute hydrochloric acid is safer to use for this purpose as it produces hydrogen gas more slowly and can be better controlled.
Does acid react with metal to make hydrogen gas?
Yes, acids can react with certain metals to produce hydrogen gas. The acid will dissolve the metal, releasing hydrogen gas in the process. This type of reaction is often used in laboratory settings or for demonstrations.
Can potassium chloride be prepared from zinc and hydrogen chloride?
No, reacting zinc with hydrogen chloride will yield zinc chloride and hydrogen gas. Potassium chloride can be prepared by reacting potassium with hydrogen chloride or (more safely) potassium hydroxide with hydrogen chloride.
When you test for hydrogen gas another gas is involved as a reactant?
Typically in the laboratory setting, hydrogen gas is often tested using the reaction between hydrogen and oxygen gas. This reaction forms water as the product. The presence of hydrogen gas in the reaction can be confirmed by observing the formation of water, such as condensation or droplets on the surface.
How is sulphur dioxide prepared in laboratory?
Sulfur dioxide can be prepared in the laboratory by reacting sulfur with oxygen or air. This reaction is typically carried out in a combustion chamber where sulfur burns in the presence of excess oxygen to form sulfur dioxide gas. The gas can then be collected using a suitable apparatus.
How is oxygen gas prepared in the laboratory?
Oxygen can be prepared by the electrolysis of water. 2H2O + electricity --> 2H2 + O2
Why does the hydrogen gas produced in laboratory not glow and emit radiations?
Hydrogen gas produced in a laboratory does not glow or emit radiation because it exists in its ground state. This means that the electrons in the hydrogen atoms are in their lowest energy levels and do not emit light when excited. To observe the glow and radiation emission from hydrogen gas, it needs to be excited to higher energy levels, such as in a plasma state.
Which gas is prepared using Vanaspati or Dalda?
Hydrogen gas is prepared using Vanaspati or Dalda through a chemical reaction called the hydrogenation of oils. This process involves heating the Vanaspati or Dalda with a metal catalyst to produce hydrogen gas as a byproduct.
Why concentrated hydrochloric acid is not used to prepare hydrogen gas in laboratory?
Concentrated hydrochloric acid (HCl) is not typically used to prepare hydrogen gas in the laboratory because it can react violently with some metals, leading to the release of hazardous hydrogen gas and potentially causing explosions. Dilute hydrochloric acid is safer to use for this purpose as it produces hydrogen gas more slowly and can be better controlled.
Can you fill ozone holes with ozone gas prepared in the laboratory?
No. See the related questions section below.
In a laboratory 178.8g of water is separated into hydrogen gas and oxygen gas . The hydrogen gas has a mass of 20.0g. What is the mass of the oxygen gas produced?
It would be 10.8 + 77.3.So that would be 88.1g of water in the scale you are using.
Does acid react with metal to make hydrogen gas?
Yes, acids can react with certain metals to produce hydrogen gas. The acid will dissolve the metal, releasing hydrogen gas in the process. This type of reaction is often used in laboratory settings or for demonstrations.
What is the purpose of the graduated cylinder in the collection of hydrogen gas by water displacement?
A graduated cylinder is a laboratory equipment. Its purpose in the collection of hydrogen gas by water displacement is for measuring and mixing the volume of liquid.
What is the instrument used in the laboratory which can split water into hydrogen and oxygen?
The instrument used in the laboratory to split water into hydrogen and oxygen is called an electrolyzer. It uses an electric current to drive the splitting of water molecules into hydrogen gas at the cathode and oxygen gas at the anode.
Can potassium chloride be prepared from zinc and hydrogen chloride?
No, reacting zinc with hydrogen chloride will yield zinc chloride and hydrogen gas. Potassium chloride can be prepared by reacting potassium with hydrogen chloride or (more safely) potassium hydroxide with hydrogen chloride.
When you test for hydrogen gas another gas is involved as a reactant?
Typically in the laboratory setting, hydrogen gas is often tested using the reaction between hydrogen and oxygen gas. This reaction forms water as the product. The presence of hydrogen gas in the reaction can be confirmed by observing the formation of water, such as condensation or droplets on the surface.
Why is pure zinc not used to prepare hydrogen gas?
Pure zinc is not used to prepare hydrogen gas because it does not react with water to produce hydrogen gas. Instead, zinc reacts with acids like hydrochloric acid to form zinc chloride and release hydrogen gas. This reaction is utilized in the laboratory to produce hydrogen gas.
