a.
Interpretation: To calculate the moles of each reactant.
Concept Introduction: A mole is
The coefficients are the numbers that are written in front of the chemical formula/symbol in order to balance a
a.
Answer to Problem 46A
The number of moles of carbon monoxide is
The number of moles of hydrogen is
Explanation of Solution
The given chemical reaction is depicted as follows:
When one mole of carbon monoxide reacts with two moles of hydrogen, it yields one mole of methanol.
The grams of methanol are given i.e.,
The molar mass of methanol is
Therefore, the moles of carbon monoxide can be calculated as follows:
Thus, the number of moles of carbon monoxide is
The calculation for moles of hydrogen is as follows:
Thus, the number of moles of hydrogen is
b.
Interpretation: To calculate the number of grams of each reactant.
Concept Introduction: A mole is
The coefficients are the numbers that are written in front of the chemical formula/symbol in order to balance a chemical reaction. In a balanced chemical equation, the coefficients help in determining the conversion factors between the number of moles for two different substances in a chemical equation.
b.
Answer to Problem 46A
The grams of carbon monoxide are
The grams of hydrogen are
Explanation of Solution
The given chemical reaction is depicted as follows:
When one mole of carbon monoxide reacts with two moles of hydrogen, it yields one mole of methanol.
The moles of methanol are given i.e.,
The molar mass of carbon monoxide is
Therefore, the grams of carbon monoxide can be calculated as follows:
Thus, the grams of carbon monoxide are
The calculation for grams of hydrogen is as follows:
The molar mass of hydrogen is
Thus, the grams of hydrogen are
c.
Interpretation: To calculate the grams of hydrogen needed to react.
Concept Introduction: A mole is
The coefficients are the numbers that are written in front of the chemical formula/symbol in order to balance a chemical reaction. In a balanced chemical equation, the coefficients help in determining the conversion factors between the number of moles for two different substances in a chemical equation.
c.
Answer to Problem 46A
The grams of hydrogen are
Explanation of Solution
The given chemical reaction is depicted as follows:
When one mole of carbon monoxide reacts with two moles of hydrogen, it yields one mole of methanol.
The moles of carbon monoxide is given, i.e.,
The calculation for grams of hydrogen is as follows:
The molar mass of hydrogen is
Thus, the grams of hydrogen are
Chapter 12 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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