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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

The equation for the oxidation of phosphorus in air is P4(s) + 5 O2(g)      P4O10(s). Identify the reactants and products and the stoichiometric coefficients. To what do the designations s and g refer?

Interpretation Introduction

Interpretation:

The reactant, product and stoichiometric coefficient should be identified.  Designation for the g and s should be given.

Concept Introduction:

The law of conservation of mass states that no atoms can be created or destroyed in a chemical reaction, therefore, the number of atoms present in the reactants is equal to the number of atoms present in the products.

Answer

The reactant, product and stoichiometric coefficient are given below (a) Designation for the g and s is given below.

Reactant

  Phosphorus and oxygen

  images

Product

Tetra phosphorus decaoxide

  images

Stoichiometric coefficient are 1,5,1.

  images

Designation for the g is gas state and s is solid state (b).

Explanation

The given equation is shown below using correct molecular formula,

  images

In a given reaction left side of the reaction is called reactant and the right side of the reaction is called product. Therefore,

Reactant

  images

  Phosphorus and oxygen

Product

  images

For balancing the reaction, stoichiometric coefficient of the reaction is needed therefore the stoichiometric coefficient of the reaction are 1,5,1 and is shown below,

images

Designation for the g is gas state is given below,

g and s state of the constituent.  Therefore g indicates gas state and s indicates solid state.

Conclusion

The reactant, product and stoichiometric coefficient should be identified.  Designation for the g and s were given.

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