Kevin

Dmitri Ivanovich Mendeleev, a Russian chemist and inventor, is best known for his revolutionary contribution to the periodic table of elements. His work laid the foundation for modern chemistry and significantly influenced how scientists understand the relationships between elements. Mendeleev’s periodic table not only provided a systematic arrangement of known elements but also predicted the … Read more

Mass Number The mass number of an atom indicates how heavy it is. Since protons and neutrons make up most of an atom’s mass, their total number determines its overall mass. The mass of electrons is negligible in comparison and is usually ignored. Thus, the mass number of an atom is the sum of its … Read more

Volumetric flasks are essential laboratory glassware designed for precise measurement and preparation of liquid solutions. Recognizable by their pear-shaped body and long, narrow neck, these flasks are calibrated to hold a specific volume with a high degree of accuracy. They are commonly used in analytical chemistry, pharmaceuticals, and research laboratories for tasks such as preparing … Read more

Chemistry and biochemistry are two closely related fields that explore the composition and behavior of matter, but they do so with different focal points. Chemistry studies substances, their properties, and how they interact at the atomic and molecular levels. Biochemistry, on the other hand, applies chemistry to understand the molecular processes within living organisms, including … Read more

Chemistry and biology are two essential branches of science that study the natural world, each with its own unique approach. Chemistry focuses on the composition, structure, and interactions of matter at the atomic and molecular levels, while biology explores living organisms, their functions, and how they interact with their environment. Despite their differences, these fields … Read more

An evaporating dish is a shallow, heat-resistant ceramic or glass vessel used in laboratories to evaporate solvents and concentrate solutions. It is commonly used in crystallization, drying samples, and removing excess liquid from chemical mixtures. The dish’s wide, open surface area allows for faster evaporation, while its high heat resistance enables it to withstand direct … Read more

A pressure-equalizing dropping funnel (also called a pressure-equalizing addition funnel) is a type of laboratory glassware used for the controlled addition of liquids to a reaction mixture while maintaining equal pressure between the funnel and the reaction vessel. It consists of a graduated glass funnel, which allows for precise measurement and controlled addition of liquids … Read more