English

Find the weight of 0.5 mole of O2.

Advertisements
Advertisements

Question

Find the weight of 0.5 mole of O2.

Numerical
Advertisements

Solution

Weight of 1 mole of O2 = 16 g × 2 = 32 g

∴ Weight of 0.5 mole = 32 × 0.5 = 16 g

shaalaa.com
  Is there an error in this question or solution?

RELATED QUESTIONS

An organic compound has the following percentage composition: C = 12.76%, H = 2.13%, Br = 85.11%. The vapour density of the compound is 94. Find out its molecular formula.


Mention the term defined by the following sentence:
The mass of a given volume of gas compared to the mass of an equal volume of hydrogen.


The reaction of potassium permanganate (VII) with acidified iron (II) sulphate is given below:
2KMno4 + 10FeSO4 + 8H2O → K2SO4 + 2MnSO4 + 5Fe2(SO4)3 + 8H2O
If 15.8g of potassium permanganate (VII) was used in the reaction, calculate the mass of iron (II) sulphate used in the above reaction.


What is the vapour density of ethylene? (Avogadro's number = 6 x 1023; Atomic weight of C = 12, H = 1; Molar volume = 22.4 litres at STP)


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


Complete the following calculations. Show working for complete credit :
 If the empirical formula of a compound is CH and it has a vapour density of 13, find the molecular formula of the compound.


Calculate the relative molecular mass of:

CH3COONa


If a crop of wheat removes 20 kg of nitrogen per hectare of soil, what mass of the fertilizer, calcium nitrate Ca(NO3)2 would be required to replace the nitrogen in a 10 hectare field?


Ammonia burns in oxygen and the combustion, in the presence of a catalyst, may be represented by;

\[\ce{2NH3 + 2 1/2O2 -> 2NO + 3H2O}\] [H = 1, N = 14, O = 16]

What mass of steam is produced when 1.5 g of nitrogen monoxide is formed?


The vapour density of CH3OH is ______. (At. Wt. C = 12, H = 1, O = 16)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×