Butyric acid contains C,H,O elements. A4.24 mg sample of butyric acid is completely burnt in oxygen. It gives 8.45 mg of carbon dioxide and 3.46 mg of water. What is the mass percentage of each element? Determine the empirical and molecular formula of butyric acid if its molecular mass is 88u.

A compound contains 4.07% hydrogen, 24.27% carbon and 71.65% chlorine . Its molar mass is 98.96 g. What are its empirical and molecular formulas ?

What is the degree of hardness of a sample of water containing 24 mg of MgSO_4 (molecular mass 120) per kg of water ?

An acid of molecular mass 104 contains 34.6% carbon, 3.85% hydrogen and the rest is oxygen. Calcualte the molecualr formula of the acid.

Percentage composition of a salt is K=8.23%, Al=5.70%, SO_(4)=40.51% and H_(2)O=45.5% . What is the empirical formula of the compound? The molecular mass of the compound is 948. what is its molecular formula?

A compound, on analysis shows C=40%, H=6.67% and O=53.33%. Determine the empirical formula of the compound. If molar mass of the compound is 30g mol^(-1) what is its molecular formula?

A compound on analys is shows C=40%, H=6.67% and O=53.33%. Determine the empirical formula of the compound. If molar mass of the compound is 30g*mol^(-1) , what is its molecular formula?

An organic compound contains C, H and O as its constituents. On heating in absence of air, 3.10g of this compound, produces 1.24g of carbon. But if 0.5 g of the compound is burnt in presence of air, 0.3 g of H_(2)O is formed. 0.05 gram-mole of the compound contains 4.8g of oxygen. what is the molecular formula off the compound?

A compound, on analysis shows C = 40%, H = 6.67% and O = 53.33%. Determine the empirical formula of the compound. If molar mass of the compound is 30 g mol^-1 , what is its molecular formula?

An organic compound (A) with molecular formula C_(8)H_(8)O forms an orange-red precipitate with 2,4-DNP reagent and gives yellow precipitate on heating with iodine in the presence of sodium hydroxide. It neither reduces Tollens or Fehlings reagent, nor does it decolourise bromine water or Baeyerâs reagent. On drastic oxidation with chromic acid, it gives a carboxylic acid (B) having molecular formula C_(7)H_(6)O_(2) . Identify the compounds (A) and (B) and explain the reactions involved.

An organic compound [A], whose molecular formula is C_(3)H_(6)O , gives iodoform reaction and forms compound [B]. Compound [B], when heated with silver powder, converts into compound [C}. Compound [C] reacts with dil. Sulphuric acid and mercuric sulphate to obtain compound [D], which gives Aldol condensation reaction. Write down the names of all compounds from [A] to [D] and also write the chemical equations for each step.