Download App

Mole Concept And Stoichiometry — Chemistry STD 10 — Question

ICSE BoardEnglish MediumSTD 10ChemistryMole Concept And Stoichiometry3 Marks
Question
Water can split into hydrogen and oxygen under suitable conditions. The equations representing the change is:
$2H_2O(I) \rightarrow 2H_2 (g) + O_2(g)$
If a given experiment results in $2500\ cm^3$​​​​​​​ of hydrogen being produced, what volume of oxygen is liberated at the same time under the same conditions of temperature and pressure?
✓

Answer

Given equation is: $2H_2O (I) \rightarrow 2H_2 (g) + O_2 (g)$
According to Gay$-$Lussac's law;
$2$ volume of water produces $2$ volume of hydrogen and $1$ volume of oxygen
i.e $2$ volume of water produces $= 2$ volume of hydrogen
$= 2500\ cm^3$​​​​​​​
$2$ volume of water will produce $=1$ volume of Oxygen
$= 2500/ 2 = 1250 \ cm^3$​​​​​​​
i.e $0= 1250 \ cm^3$​​​​​​​

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "[3 Mark Question Answer]" from Mole Concept And Stoichiometry→Mole Concept And Stoichiometry — all question types→Chemistry STD 10 question papers→ICSE Board STD 10 question papers→ICSE Board question paper generator→

Similar questions

How does ethanol reacts with
(a) Metallic sodium
(b) Acetic acid
(c) Conc.$H_2S0_4$​​​​​​​
→
Lead nitrate solution treated with calcium chloride solution and products are heated and cooled.
→
Give a chemical test to distinguish between of ethene (ethylene) and ethyne (acetylene) ?
→
How is sulphuric acid prepared industrially by contact process? Support your answer by writing fully balanced chemical equations.
→
What are Hydrocarbons? Compare saturated and unsaturated hydrocarbons?
→
Name the product, catalyst and approximate temperature maintained in Ostwalds process. How is the temperature maintained in the Ostwalds process?
→
Concentrated nitric acid oxidizes phosphorus to phosphoric acid according to the following equation:
$P+ 5HNO_3 \rightarrow H_3PO_4+ 5NO_2 + H_2O$
If 6.2g of phosphorus was used in the reaction calculate:
(a) The number of moles of phosphorus taken and mass of phosphoric acid
formed.
(b) mass of nitric acid will be consumed at the same time?
(c) The volume of steam produced at the same time if measured at 760 mm Hg pressure and $273^0C?$
→
(a) Fe + S → Fe2+S2-
Which substance in the above reaction is (i) oxidising agent (ii) reducing agent and why?
(b) 2Fe + 3Cl2 → 2Fe3+ + 2Cl3-
In the above reaction, which substance is (i) oxidised (ii) reduced, and why?
→
Give reason for the following:
Anhydrous calcium chloride is used in a desiccator.
→
(a) Explain what is meant by "molar volume of a gas."
(b) Calculate the number of moles of nitrogen in 7 grams of nitrogen.
→