On strongs heating, One gram of the silver salt of an organic dibasic acid yields `0.5934 g` of silver. If the mass percentage of carbon in it 8 times the mass percentage of hydrogen and one - half the mass percentage of oxygen, determine the molecular formula of the acid.

A gaseous compound is composed of 85.7% by mass carbon and 14.3% by mass hydrogen. Its density is 2.28 g/litre at 300 K and 1.0 atm pressure. Determine the molecular formula of the compound.

What is the simplest formula of the compound which has the following percentage composition carbon 80% , hydrogen 20% , if the molecular mass is 30. calculate its molecular formula ?

An organic substance containing carbon, hydrogen and oxygen gave following percentages, C= 40.68%, H_(2) = 5.085% and O_(2) = 54.22%. The vapour density of the compound is 59. Calculate the molecular formula of the compound.

A compound used in making nylon, contains 43.8% oxygen. There are four oxygen atoms per molecule. What is the molecular mass of compound ?

Caffiene has a molecular mass of 194 . If it contains 28.9% by mass of nitrogen, number of atoms of nitrogen in one molecule of caffeine is :

Two spheres are made of same metal had and have same mass. One is solid and the other is hollow. When heated to the same temperature, percentage increase in diameter will be

A compound containing carbon, hydrogen and oxygen gave the following analytical data C= 40.0%, H= 6.67%. Calculate the molecular formula of the compound, If its molecular mass is 180.

A silver coin weighing 11.34 g was dissolved in nitric acid When sodium chloride was added to the solution all the silver (present as AgNO_(3) ) precipitated as silver chloride. The mass of the precipitated silver chloride was 14.35 g. Calculate the percentage of silver in the coin.

A certain non-volatile electrolyte contain 40% carbon, 6.7% hydrogen and 53.3% oxygen.An aqueous solution containing 5% by mass of the solute boils at 100.15^(@) C. Determine molecular formula of the compound( K_(b) =0.51^(@)C//m ):

The impure 6g of NaCl is dissolved in water and then treated with excess of silver nitrate solution. The mass of p[recipitate of silver chloride is found to be 14g. The % purity of NaCl solution would be: