Interpretation : The balanced equation is to be interpreted in terms of the relative number of moles, volumes of gas at STP, and masses of reactants and products.
Concept Introduction : The coefficients of a balanced chemical equation that are transformed into moles are used to calculate the mole ratio, which is a conversion factor.
Mole ratios are utilized when converting between a certain number of moles of one reactant or product and moles of another reactant or product.
Answer to Problem 42A
The balanced chemical equation is given as
The volume of gas at STP is given as
The mass of the reactants is
The mass of the products is
Explanation of Solution
The given chemical equation is as follows:
The balanced chemical equation is given as
The moles of each reacted in the reaction is given as
At STP, 1 mole is equal to
The volume of gas at STP in the chemical equation is given as
Further, multiplying the values, the volume of gas at STP is given as
Molar mass of
Molar mass of O is
Molar mass of
The molar mass of the reactants and products is to be calculated.
The reactants are
Mass of
Mass of
Mass of
The mass of the reactant is given as follows:
The mass of the products is given as follows:
Chapter 12 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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