Chemistry
(a) The vapour density of a gas is 8. What would be the volume occupied by 24.0 g of the gas at STP?
(b) A vessel contains X number of molecules of hydrogen gas at a certain temperature and pressure. How many molecules of nitrogen gas would be present in the same vessel under the same conditions of temperature and pressure?
Related Questions
The diagram given below is to prepare Iron [III] chloride in the laboratory.
![The diagram given below is to prepare Iron [III] chloride in the laboratory. Why iron[III] chloride closed container. What is substance B. What is the purpose of B. Acids, Bases and Salts, Concise Chemistry Solutions ICSE Class 10](https://cdn1.knowledgeboat.com/img/cc10/iron-3-chloride-lab-prep-concise-chemistry-solutions-icse-class-10-426x158.png)
(i) What is substance B ?
(ii) What is the purpose of B ?
(iii) Why is iron[III] chloride to be stored in a closed container ?
(iv) Write the equation for the reaction between iron and chlorine.
Give balanced equations for the following:
(i) Laboratory preparation of nitric acid.
(ii) Preparation of ethanol from monochloroethane and aq. sodium hydroxide.
Study the figure given below and answer the questions that follow :
(i) Identify the gas Y.
(ii) What property of gas Y does this experiment demonstrate?
(iii) Name another gas which has the same property and can be demonstrated through this experiment.
Aluminium is obtained from alumina:
Answer the following :
(i) Electrolyte used
(ii) Write cathode reaction
(iii) Why anode is replaced