Concept explainers
4.15 What mass of the unknown compound is formed in the following reactions? (Assume that reactants for which amounts are not given are present in excess.)
g C2H4 reacts to produce x g C2H6
5.78 g Cl2 reacts to produce x g S2CL2
mg PCl3 reacts to produce x mg HCl
kg B2H6 reacts to produce x kg B2O3
a)
To determine: The mass of unknown compound that is formed in:
Explanation of Solution
Calculate the molecular weight of C2H4 and C2H6
1 mol of C2H4 produces 1 mol of C2H6. Convert these moles in grams
Calculate the mass of C2H6produce with 3.4 g of C2H4
b)
To determine: The mass of unknown compound that is formed in:
Explanation of Solution
Calculate the molecular weight of Cl2 and S2Cl2
3 moles of Cl2 produces 1 mol of S2Cl2. Convert these moles in grams
Calculate the mass of S2Cl2produce with 5.78 g of Cl2
c)
To determine: The mass of unknown compound that is formed in:
Explanation of Solution
Given the following reaction,
Calculate the molecular weight of PCl3 and HCl
1 mol of PCl3 produces 3 moles of HCl. Convert these moles in mg
Calculate the mass of HCl produce with 3.1 mg of HCl
d)
To determine: The mass of unknown compound that is formed in:
Explanation of Solution
Calculate the molecular weight of B2H6 and B2O3
1 mol of B2H6 produces 1 mol of B2O3. Convert these moles in kg
Calculate the mass of B2O3produce with 4.6 kg of B2H6
a) 3.4 g of C2H4 produces
b) 5.78 g of Cl2 produces
c) 3.1 mg of PCl3 produces
d) 4.6 kg of B2H6 produces
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Chapter 4 Solutions
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