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Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425

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BuyFindarrow_forward

Introductory Chemistry: A Foundati...

9th Edition
Steven S. Zumdahl + 1 other
ISBN: 9781337399425
Textbook Problem
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Solid calcium carbide ( CaC 2 ) reacts with liquid water to produce acetylene gas ( C 2 H 2 ) and aqueous calcium hydroxide.

l type='a'>

  • Write the balanced equation for the reaction that is (occurring. including all phases.
  • If a 100.0-g sample of calcium carbide ( CaC 2 ) is initially reacted with 50.0 g of water, which reactant is limiting?
  • Prove that mass is conserved for the reactant amounts used in pan b.
  • Interpretation Introduction

    (a)

    Interpretation:

    The balanced chemical reaction for the solid calcium carbide with liquid water should be determined.

    Concept Introduction:

    A balanced chemical equation is an equation that contains same number of atoms as well as of each element of reactants and products of reaction.

    For example, the reaction between lead sulphide and oxygen is as follows:

    2 PbS +  3 O22PbO +  2SO2  Reactants            Products

    Mass of any substance can be calculated as follows:

    Mass in gram = Number of moles×Molar mass

    Number of moles can be calculated as follows;

    Number of moles=mass in gmolarmass.

    Explanation

    The limiting reactant in a particular reaction has due to following properties:

    1. Limiting reactant completely reacted in a particular reaction.
    2. Limiting reactant determines the amount of the product in mole.

    If any reactant left after competitions of reaction, thus it is said to excess reactant.

    The balance equation for the solid calcium carbide with liquid water is as follows:

    CaC2 (s)+

    Interpretation Introduction

    (b)

    Interpretation:

    The limiting reagent should be determined.

    Concept Introduction:

    A balanced chemical equation is an equation that contains same number of atoms as well as of each element of reactants and products of reaction.

    For example, the reaction between lead sulphide and oxygen is as follows:

    2 PbS +  3 O22PbO +  2SO2  Reactants            Products

    Mass of any substance can be calculated as follows:

    Mass in gram = Number of moles×Molar mass

    Number of moles can be calculated as follows;

    Number of moles=mass in gmolarmass.

    Interpretation Introduction

    (c)

    Interpretation:

    To prove that mass in conserved for reactant

    Concept Introduction:

    A balanced chemical equation is an equation that contains same number of atoms as well as of each element of reactants and products of reaction.

    For example, the reaction between lead sulphide and oxygen is as follows:

    2 PbS +  3 O22PbO +  2SO2  Reactants            Products

    Mass of any substance can be calculated as follows:

    Mass in gram = Number of moles×Molar mass

    Number of moles can be calculated as follows;

    Number of moles=mass in gmolarmass.

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