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Why granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid?
Granulated zinc has a higher surface area compared to metallic zinc, allowing for a faster reaction with the dilute acid. This increased surface area increases the rate of the reaction, resulting in a more efficient production of hydrogen gas. Additionally, granulated zinc prevents the formation of a protective layer of zinc oxide, allowing for continuous reaction with the acid.
Zinc and hydrogen chloride react to produce?
When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.
what is the chemical formula for zinc chloride and hydrogen gas?
Zinc chloride is ZnCl2 Hydrogen gas is H2
What is a chemical name for Zn HSO3 2?
The chemical name for Zn(HSO3)2 is zinc hydrogen sulfite.
Zinc chloride plus hydrogen sulfide forms what?
Zinc sulfide and hydrogen chloride are formed when zinc chloride reacts with hydrogen sulfide. This is a double displacement reaction where the cations and anions switch partners to create new compounds. Zinc sulfide is a yellow solid, while hydrogen chloride is a colorless gas.
Why is granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid?
Granulated zinc has more surface area exposed to the acid, so the reaction can occur more rapidly.
Why granulated zinc is used in the preparation of hydrogen rather than metallic zinc?
Don't know, because granulated zinc IS metallic itself: solid, elemental Zn.
Why granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid?
Granulated zinc has a higher surface area compared to metallic zinc, allowing for a faster reaction with the dilute acid. This increased surface area increases the rate of the reaction, resulting in a more efficient production of hydrogen gas. Additionally, granulated zinc prevents the formation of a protective layer of zinc oxide, allowing for continuous reaction with the acid.
Why calcium is not used in the lab preparation of hydrogen?
Calcium is not used in the lab preparation of hydrogen because it reacts with water to form calcium hydroxide and hydrogen gas, making it an inefficient method for producing pure hydrogen. Other methods such as using metals like zinc or aluminum are preferred for lab preparation of hydrogen as they do not form unwanted byproducts.
What is the word equation for the preparation of hydrogen?
The word equation for the preparation of hydrogen gas is: metal + acid → salt + hydrogen gas. For example, when hydrochloric acid reacts with zinc, it produces zinc chloride salt and hydrogen gas.
Why nitric acid is not used in lab preparation hydrogen?
Nitric acid is a strong oxidizing agent that can react violently with reducing agents such as hydrogen, leading to potential explosions. This makes it unsafe to use nitric acid in the lab for the preparation of hydrogen gas. Preferred methods for generating hydrogen gas typically involve non-oxidizing acids like hydrochloric acid reacting with a metal like zinc.
What are the products formed when granulated zinc reacts with caustic soda?
When granulated zinc reacts with caustic soda (sodium hydroxide), the products formed are hydrogen gas and sodium zincate, which is a soluble compound. The chemical equation for this reaction is: Zn + 2NaOH -> Na2ZnO2 + H2.
Why do you think that granulated zinc is used instead of a block?
Granulated zinc is used instead of a block as the surface area of granulated zinc is much more than that of a block. Hence it's easier for it to react with oxygen if the area is more. This is why it's used.
Zinc hydrogen phosphate?
Zinc hydrogen phosphate is a chemical compound with the formula ZnHPO₄. It is a white, crystalline solid. It is used in the preparation of dental cements and as a corrosion inhibitor.
Why is granulated zinc used instead of a block?
If there is Block of zinc, only the zinc on the surface gets exposed to the other reactants but if there is granulated zinc because of its more surface area the zinc is more exposed so the granulated zinc is used for the greater reaction rate.
Zinc and hydrogen chloride react to produce?
When zinc reacts with hydrochloric acid it produces zinc chloride and hydrogen gas.
What does an acid plus zinc produce?
Hydrogen gas and a zinc salt.It produces hydrogen and zinc chloride.
