STOICHIOMETRY

Stoichiometry is the basic chemical calculation that states quantitative relation of chemical formulas and chemical equations.

Molar Concepts and Molar Masses
In SI systems, one mole is defined as the sum of the material composed of entities (atoms, molecules, or other particles) a sum of the atoms in 12 grams Carbon-12. The value of the number of atoms is 6.022 × 1023 called the Avogadro number, NA.

Empirical Formulas and Molecular Formulas
Empirical formulas are the simplest integer ratios of the number of moles of each element in a compound. The molecular formula represents the true number of moles of each element in 1 mole of the compound. The molecular formula may be identical to the empirical formula or an integer multiple of the empirical formula. For example, phosphoric acid (H3PO4) has a molecular formula and an identical empirical formula. Glucose has a molecular formula C6H12O6 which is a folding of 6 times its empirical formula, CH2O.

The Stoichiometric Basis of Solution
The term "concentration" of the solution expresses the amount of solute dissolved in a certain amount of solvent or a certain amount of solution. The concentration of the solution can be expressed in molarity. Molarity (M) is defined as the number of moles of solute per liter of solution.



Basic Ideal Gas Stoichiometry
The molar volume, Vm, is defined as the volume of 1 mol entity (atom, ion, molecule, unit formula) of matter. The unit of the molar volume (Vm) is L / mol.




Avogadro's law states that at certain pressures and temperatures and fixed, the volume of the gas is directly proportional to the amount of gas.





Komentar

  1. Can you explain about Vm?
    @hudiahudhud

    BalasHapus
    Balasan
    1. The molar volume, Vm, is defined as the volume of 1 mol entity (atom, ion, molecule, unit formula) of matter. The unit of the molar volume (Vm) is L / mol

      Hapus
  2. Please explain about molarity

    BalasHapus
    Balasan
    1. In chemistry, molarity (M) is a measure of the concentration of the solution. The molarity of a solution expresses the number of moles of a substance per liter of solution.

      Hapus
  3. What is chemical equations?

    BalasHapus
    Balasan
    1. In chemistry, the equation of a reaction or chemical equation is the symbolic writing of a chemical reaction. The chemical formula of the reagent is written to the left of the equation and the chemical formula of the product is written on the right. In a reaction equation, reagents and products are connected through different symbols. → symbol is used for direct reaction, ⇆ for two-way reaction, and ⇌ for equilibrium reaction. For example, the methane combustion reaction equation (a gas in natural gas) by oxygen is written as follows CH4 + 2 O2 → CO2 + 2 H2O

      Hapus
  4. Can you give an example of calculating Basic Ideal Gas Stoichiometry?

    BalasHapus

  5. From the extract of organic phosphate compound obtained only 180 grams of ion po4 which is about 60% expected results obtained. How many results should be obtained

    BalasHapus
  6. What is the function of VM?

    BalasHapus
    Balasan
    1. To determine the volume of gas per 1 mol or determine the volume determination of every 1 mole of gas.

      Hapus

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