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Rutherford's Gold Foil Experiment

Rutherford's gold scattering experiment is an important event in the history of science because it led to the discovery of the nucleus.

5 min read

Plum Pudding Atomic Model by J. J. Thomson

The plum pudding is an atomic model formulated by J. J. Thomson. According to the model, the negative charge particles are embedded in the positive charge cloud in the atom.
3 min read

J. J. Thomson's Cathode Ray Tube Experiments

Thomson's all three experiments are discussed. He studied magnetic and electric properties of cathode rays and determined the mass-to-charge ratio of the electron.
10 min read

Mass Concentration

Mass concentration is a volumetric measure like molarity. It is the ratio of the mass of a solute to the volume of solution.
10 min read

Molality

Molality is a concentration that tells how much a solute is present per kg of the solvent.
9 min read

Molarity

Molarity is an important concept in analytical chemistry. Many calculations of chemistry involves molarity.
11 min read

Real-life Examples of Boyle's Law

Boyle's law can be found on many everyday activities. The article highlights some of them.
4 min read

Mole Fraction

The mole fraction of a substance in the mixture is the ratio of the mole of the substance in the mixture to the total mole of the mixture. Since it is the ratio of moles to moles, it is a dimensionless quantity. The mole fraction is sometimes called the amount fraction.

11 min read

Mass Fraction

The mass fraction of a substance in a mixture is the ratio of the mass of the substance to the total mass of the mixture. It is also known as mass per cent or percentage by mass when expressing in percentage. Since the mass fraction is a ratio of mass to mass, it is a dimensionless quantity.

13 min read

Empirical Formula

The empirical formula is the formula formed by atoms of a compound (or a molecule) such that atoms of an element are in the simplest relative ratio.

22 min read

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