determinant calculate

Let, The mass of the compound taken be = W g Mass of AgX formed = W 1 g From stoichiometry, Ag = X 1 mol 1 mol 1 molecular mass 1 atomic mass Therefore, ..

Let, The mass of the organic compound taken be = W g Mass of Mg 2 P 2 O 7 obtained = W 1 g From stoichiometry, Mg 2 P 2 O 7 = 2P 1 mol 2 mol 1 x molecular mass 2 x atomic mass 222 g 2 x 31 g = 62 g Therefore, Then, ..

Empirical and molecular formulae of a compound can be determined from the composition of the compound, which is expressed in terms of the percentage of each element present in it. To determine the formula of an unknown compound the following steps are taken: Empirical and molec..

The mass of an electron (m) is determined by dividing the value of 'e' by e/m. Charge/mass (e/m) = 1.76 x 10 8 coulomb/g Charge (e) = 1.602 x 10 - 1 9 coulombs...

Compounds whose heats of formation cannot be measured directly using calorimetric methods because they cannot be synthesised from their elements easily e.g. methane, carbon monoxide, benzene etc are determined using Hess's Law. For example, the heat of formation of carbon monoxide can be..

Determination of Enthalpy Change ( D H) - The calorimeter is kept open to the atmosphere in the determination of change in enthalpy of a reaction. The calorimeter is immersed in an insulated water bath fitted with stirrer and thermometer. The temperature of the bath is recorded ..

A known mass W B of the non-volatile solute is dissolved in a known mass (W A ) of the volatile solvent to prepare a dilute solution and relative lowering of vapor pressure is determined experimentally. Knowing the molecular mass (M A ) of the solvent, molecular mass (M B ) of the solut..

The depth of an ocean is determined with the help of SONAR. Sonar uses ultrasonic waves to detect and locate objects under water. Ultrasonic waves produced from the transmitter kept in a ship are directed towards the ocean floor. The ocean floor reflects these waves. By measuring the tim..

* The empirical formula of the compound is written. * The empirical formula mass is calculated by adding the atomic masses of all atoms present in the empirical formul..

Determination of the Molecular Formula of a Compound - The empirical formula of the compound is written. The empirical formula mass is calculated by adding the atomic masses of all atoms present in the empirical formula. The molecular mass or molar mass is obtained from experime..