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4 dni temu · Specific entropy may be expressed relative to a unit of mass, typically the kilogram (unit: J⋅kg −1 ⋅K −1 ). Alternatively, in chemistry, it is also referred to one mole of substance, in which case it is called the molar entropy with a unit of J⋅mol −1 ⋅K −1 .
19 cze 2024 · Calculations. Stoichiometry. Limiting Reagents. Concentration of Solutions. Chemical Equilibrium. Kinetics. Thermodynamics. Stoichiometry is simply the math behind chemistry. Given enough information, one can use stoichiometry to calculate masses, moles, and percents within a chemical equation.
2 dni temu · The acid dissociation constant for an acid is a direct consequence of the underlying thermodynamics of the dissociation reaction; the p Ka value is directly proportional to the standard Gibbs free energy change for the reaction.
20 cze 2024 · Planck’s constant, (symbol h), fundamental physical constant characteristic of the mathematical formulations of quantum mechanics, which describes the behaviour of particles and waves on the atomic scale, including the particle aspect of light.
3 dni temu · Mixture problems involve combining two or more things and determining some characteristic of either the ingredients or the resulting mixture. For example, we might want to know how much water to add to dilute a saline solution, or we might want to determine the percentage of concentrate in a jug of orange juice.
13 cze 2024 · Arrhenius equation, mathematical expression that describes the effect of temperature on the velocity of a chemical reaction, the basis of all expressions used for calculating reaction-rate constants. The equation predicts that a small increase in reaction temperature will markedly increase the reaction-rate constant.
23 cze 2024 · This calculator provides the calculation of a compound expression using BODMAS rules. Explanation. Calculation Example: A compound expression is a mathematical expression that contains more than one operation.
