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Thermochemistry concepts are essential to learning for every level in chemistry courses. Here, we have compiled many Thermochemistry quizzes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical and engineering students (MDCAT, ECAT, NUST,…
Chemical Bonding Quiz Online
Chemical Bonding concepts are essential to learning for every level in chemistry courses. Here, we have compiled many Chemical Bonding quizzes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical and engineering students (MDCAT,…
Liquids & Solids State Quiz Online
Liquids & Solids State concepts are essential to learning for every level in chemistry courses. Here, we have compiled many Liquids & Solids State quizzes free for students of grades 11 and 12. We hope you will find this very useful for your regular exam preparations and entry tests at undergraduate levels, particularly for medical…
Stock System Chemistry
The German chemist Alfred Stock proposed the Stock System Chemistry of nomenclature in 1919 for use in the naming of binary compounds, being, with some modifications, universally adopted. This type of inorganic nomenclature consists of naming the compounds using Roman numerals to indicate the oxidation states of some of the compound elements. These Roman numerals…
Mole Chemistry | Mole Concept | Mole Unit
Below are some important points to get clear mole concept, definition of mole chemistry and mole units. Mole can be define as, The atomic mass, molecular mass, ionic mass or formula mass of a substance expressed in grams is called mole of that substance. OR The amount of a substance, which contains 6.02 x 1023…
Molar Volume of a Gas Definition
The volume of one mole of an ideal gas at standard temperature and pressure is called molar volume of a gas and is equal to 22.414 dm3 at STP (Standard temperature & pressure) & 24 dm3 at RTP (Room temperature & pressure). Explanation: At standard temperature and pressure: 2 g of hydrogen (H2) = 1…
