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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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For each of the following incomplete and unbalanced equations, indicate how many moles of the second reactant would be required to react completely with 0. 145 mole of the first reactant.

msp;  BaCl 2 ` ( a q ) + H 2 SO 4 ( a q )

msp;  AgNO 3 ( a q ) + NaCl ( a q )

msp;  Pb ( NO 3 ) 2 ( a q ) + Na 2 CO 3 ( a q )

msp;  C 3 H 8 ( g ) + O 2 ( g )

Interpretation Introduction

(a)

Interpretation:

To determine the number of moles of second reactants which is required to react 0.145 mole of first 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.

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 chemical equation is as follows:

BaCl2(aq)+H2SO4(aq)BaSO4(s)+2HCl(aq)

Given:

Number of first reactant = 0.145 moles

Calculation:

Now calculate the mole of second recants as follows:

0

Interpretation Introduction

(b)

Interpretation:

To determine the number of moles of second reactants which is required to react 0.145 mole of first 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.

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 determine the number of moles of second reactants which is required to react 0.145 mole of first 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.

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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