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3 years ago

A unit of substance that contains the Avogadro number of atoms or molecules is referred to as a ____________ of the substance.

Chemistry

1 answer:

Sophie [7]3 years ago

8 0

Answer:

A unit of substance that contains the Avogadro number of atoms or molecules is referred to as a mole of the substance.

Explanation:

The mole (symbol: mol) is the unit of measurement for amount of substance in the International System of Units (SI). A mole of a substance or a mole of particles is defined as exactly 6.02214076×1023 particles, which may be atoms, molecules, ions, or electrons. In short, for particles, 1 mol = 6.02214076×1023.

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3 years ago

g Hydrogen iodide, HI, decomposes at moderate temperatures according to the equation The amount of I2 in the reaction mixture ca

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Answer:

Equilibrium constant, Kc = 0.023

Explanation:

Equation for the decomposition of Hydrogen iodide is given below:

2HI ----> H₂ + I₂

Initially, the number of moles of the reactant and the products are given as follows:

n(HI) = 2 * 3.800 moles = 7.600 moles

nH₂) = 0.000 moles

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At equilibrium, the equation becomes: 2HI <----> H₂ + I₂

Number of moles of the reactant and the products are given as follows:

n(HI) = 7.600 - (0.886 + 0.886) moles = 5.828 moles

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n(I₂) = 2 * 0.443 = 0.886 moles

Equilibrium constant, Kc = [H₂] [I₂] / [HI]²

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3 years ago

A unit of substance that contains the Avogadro number of atoms or molecules is referred to as a ____________ of the substance. ​

A unit of substance that contains the Avogadro number of atoms or molecules is referred to as a ____________ of the substance.