Solved: A loud classroom demonstration involves igniting a

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo Tro

Problem 99P Chapter 8

Introductory Chemistry | 5th Edition

  • 2901 Step-by-step solutions solved by professors and subject experts
  • Get 24/7 help from StudySoup virtual teaching assistants
Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo Tro

Introductory Chemistry | 5th Edition

4 5 0 236 Reviews
11
2
Problem 99P

PROBLEM 99P

A loud classroom demonstration involves igniting a hydrogen-filled balloon. The hydrogen within the balloon reacts explosively with oxygen in the air to form water according to this reaction:

2 H2(g) + O2(g) → 2 H2O(g)

If the balloon is filled with a mixture of hydrogen and oxygen, the explosion is even louder than if the balloon is filled with only hydrogen; the intensity of the explosion depends on the relative amounts of oxygen and hydrogen within the balloon. Consider the molecular views representing different amounts of hydrogen and oxygen in four different balloons. Based on the balanced chemical equation, which balloon will make the loudest explosion?

Step-by-Step Solution:

Solution 99P :

Step 1:

Given reaction:

2 H2(g) + O2(g) → 2 H2O(g)

 

Here, we have to determine which balloon makes the loudest explosion, based on the balanced chemical reaction.

In the balloon, oxygen atom is represented in red color and hydrogen in white color.

Step 2:

Now, let’s examine all the balloons :

balloon (a)  :

It has 11 molecules of hydrogen and 2 molecules of oxygen :

We know to form 1 molecule of water, we need 2 molecules of hydrogen and 1 molecule of oxygen. We are given the reaction :

        2 H2(g) + O2(g) → 2 H2O(g)

Now, let’s calculate the number of moles of H2O that can be formed from 11 molecules of H2 :

                

                = 11 H2 

= 11 H2O.  

Now, let’s calculate the number of moles of H2O that can be formed from 2 molecules of O2 :

                

                = 2 O2 

= 4 H2O.  

From the above calculation, we see that there are enough molecules of H2 to form 11 molecules of H2O. Therefore, O2 is the limiting reactant. Thus, 4 molecules of water is formed during the explosion.

Step 3:

balloon (b) :

It has 8 molecules of hydrogen and 4 molecules of oxygen :

Now, let’s calculate the number of moles of H2O that can be formed from 8 molecules of H2 :

                

                = 8 H2 

= 8 H2O.  

Now, let’s calculate the number of moles of H2O that can be formed from 4 molecules of O2 :

                

                = 4 O2 

= 8 H2O.  

From the above calculation, we see that there are enough molecules of H2 to form 8 molecules of H2O. Therefore, O2 is the limiting reactant. Thus, 8 molecules of water is formed during the explosion.

Step 4 of 5

Chapter 8, Problem 99P is Solved
Step 5 of 5

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo Tro
ISBN: 9780321910295

Introductory Chemistry was written by Patricia and is associated to the ISBN: 9780321910295. The answer to “A loud classroom demonstration involves igniting a hydrogen-filled balloon. The hydrogen within the balloon reacts explosively with oxygen in the air to form water according to this reaction:2 H2(g) + O2(g) ? 2 H2O(g)If the balloon is filled with a mixture of hydrogen and oxygen, the explosion is even louder than if the balloon is filled with only hydrogen; the intensity of the explosion depends on the relative amounts of oxygen and hydrogen within the balloon. Consider the molecular views representing different amounts of hydrogen and oxygen in four different balloons. Based on the balanced chemical equation, which balloon will make the loudest explosion?” is broken down into a number of easy to follow steps, and 104 words. This full solution covers the following key subjects: hydrogen, balloon, oxygen, explosion, filled. This expansive textbook survival guide covers 19 chapters, and 2045 solutions. Since the solution to 99P from 8 chapter was answered, more than 1869 students have viewed the full step-by-step answer. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. The full step-by-step solution to problem: 99P from chapter: 8 was answered by Patricia, our top Chemistry solution expert on 05/06/17, 06:45PM.

×
Log in to StudySoup
Get Full Access to Introductory Chemistry - 5 Edition - Chapter 8 - Problem 99p

Forgot password? Reset password here

Join StudySoup for FREE
Get Full Access to Introductory Chemistry - 5 Edition - Chapter 8 - Problem 99p
Join with Email
Already have an account? Login here
Reset your password

I don't want to reset my password

Need help? Contact support

Need an Account? Is not associated with an account
Sign up
We're here to help

Having trouble accessing your account? Let us help you, contact support at +1(510) 944-1054 or support@studysoup.com

Got it, thanks!
Password Reset Request Sent An email has been sent to the email address associated to your account. Follow the link in the email to reset your password. If you're having trouble finding our email please check your spam folder
Got it, thanks!
Already have an Account? Is already in use
Log in
Incorrect Password The password used to log in with this account is incorrect
Try Again

Forgot password? Reset it here