मराठी

Prove the Following : - Chemistry

Advertisements
Advertisements

प्रश्न

Prove the Following :
2 X V.D. = Molecular mass.

एका वाक्यात उत्तर

उत्तर

The molecular mass of the given compound is determined experimentally by  vapour density method also, in which the vapour density of the compound is determined. Vapour density is related to molecular mass as :
Molecular mass = 2 x vapour density.

shaalaa.com
Relationship Between Vapour Density and Relative Molecular Mass
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Mole Concept And Stoichiometry - Exercise 1 [पृष्ठ ११५]

APPEARS IN

फ्रँक Chemistry - Part 2 [English] Class 10 ICSE
पाठ 5 Mole Concept And Stoichiometry
Exercise 1 | Q 1.2 | पृष्ठ ११५

संबंधित प्रश्‍न

Calculate the percentage composition of oxygen in lead nitrate [Pb(NO3)2]. [Pb = 207, N= 14, O = 16]


Chlorine, nitrogen, ammonia and sulphur dioxide gases are collected under the same conditions of temperature and pressure.
Copy the following table which gives the volumes of the gases collected, and the number of molecules (X) in 20L of nitrogen.You are to complete the table by giving the number of molecules in th e other gases, in terms of X.

Gas Volume(litres) Number of molecules
Chlorine 10  
Nitrogen 20 X
Ammonia 20  
Sulphur dioxide 5  

A metal M, forms a volatile chloride containing 65.5% Chlorine. If the density of the chloride relative to hydrogen is 162.5, find the molecular formula of the chloride. [M = 56, Cl = 35.5]


A compound 'X' consists of 4.8% of C and 95.2% of Br by mass. 
Name the type of chemical reaction by which X can be prepared from ethane.


The equation for the burning of octane is:

\[\ce{2C6H18 + 25O2 -> 16CO2 + 18H2O}\]

If the relative molecular mass of carbon dioxide is 44, what is the mass of carbon dioxide produced by burning two moles of octane?


A certain gas 'X' occupies a volume of 100 cm3 at S.T.P. and weighs 0.5 g. Find its relative molecular mass.


Calculate the volume of oxygen required for the complete combustion of 8.8 g of propane (C3H5).
(Atomic mass: C = 14, O = 16, H = 1, Molar Volume = 22.4 dm3 at STP.)


Calculate the relative molecular mass of:

CH3COONa


Calculate the number of atoms of each kind in 5.3 grams of sodium carbonate.


Correct the statement, if required.

Under similar conditions of temperature and pressure, two volumes of hydrogen combined with two volumes of oxygen will give two volumes of water vapour.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×