Escience 5: qualitative analysis of ions

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pre-lab Questions

1. What is one difference between qualitative and quantitative analysis? 

2. Use Table 1 to determine which metal ion would be identified as the reactant if a reaction with ammonia produces a violet complex? Use scientific reasoning to explain your answer. 

3. Use the pH scale to describe an acidic solution and a basic solution. At what pH would a solution be considered neutral? Why?   

experiment 1: qualitative analysis of reactions

Data Sheet

Table 2: Litmus Test Results of OH- and H+ Solution Type
Initial Litmus Color
Final Litmus Color
Acid or Base? Acetic acid 
Purple 
Red 
Acid  Sodium bicarbonate 
Purple 
Blue 
Base Table 3: Test Results Solution Type
Indicator
Observations Initial
Final Carbonate Ion
Bubble formation when an acid is added 
Clear solution 
Bubbles  Sulfate Ion
White precipitates when barium chloride is added to the   solution. 
Clear solution 
White precipitates  Phosphate Ion
Formation of white precipitate 
Clear solution
White precipitate formed  Calcium Ion
Formation of precipitate 
Clear solution 
Precipitate Table 4: Determination of an Unknown Results
Carbonate Ion Test Tube
Sulfate Ion Test Tube
Phosphate Ion Test Tube Observations
No bubbles observed. Solution remained clear 
No precipitate 
White precipitate formed Result: Positive or Negative?
Negative 
Negative 
positive

Post-Lab Questions

1. What ion is contained in the unknown solution? Use your results as evidence. 

2. Imagine that the unknown solution contains aqueous ammonium sulfate, which is commonly used in fertilizer. Write a balanced equation for the precipitation of barium sulfate after mixing aqueous ammonium sulfate and barium chloride.

 3.  Identify and discuss any sources of error for this experiment. How could you mitigate error?
 

4006

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 PLEASE FOLLOW THE INSTRUCTIONS BELOW

5 REFERENCES

ZERO PLAGIARISM

As you might recall from Week 5, there are significant differences in the applications of cognitive behavior therapy (CBT) for families and individuals. The same is true for CBT in group settings and CBT in family settings. In your role, it is essential to understand these differences to appropriately apply this therapeutic approach across multiple settings. For this Discussion, as you compare the use of CBT in group settings and family settings, consider challenges of using this approach with your own groups.

Learning Objectives

Students will:
  • Compare the use of cognitive behavioral therapy for groups to cognitive behavioral therapy for families
  • Analyze challenges of using cognitive behavioral therapy for groups
  • Recommend effective strategies in cognitive behavioral therapy for groups
To prepare:
  • Reflect on your practicum experiences with CBT in group and family settings.

 Post an explanation of how the use of CBT in groups compares to its use in family settings. Provide specific examples from your own practicum experiences. Then, explain at least two challenges counselors might encounter when using CBT in the group setting. Support your response with specific examples from this week’s media. 

 

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Business plan Outline

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In 6-3 Final Project: Milestone One, you will submit a detailed business plan outline for your selected interscholastic athletic department. You do not have to fully address all of main elements when you submit Milestone One. Your outline should be a minimum of three pages. This submission is for instructor feedback and It will affect your project grade under the Milestone Submission critical element. If you have questions or need guidance from your instructor on some of these points, make sure to include targeted questions within your Milestone One submission.

Roald Dahl’s poem “Little Red Riding Hood and The Wolf”

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Close Reading (Poetry) question: Analyze Roald Dahl’s poem “Little Red Riding Hood and The Wolf” in terms of form and content. What makes it appealing to a modern child reader?

“Little Red Riding Hood and the Wolf”
As soon as Wolf began to feel
That he would like a decent meal,
He went and knocked on Grandma’s door.
When Grandma opened it, she saw
The sharp white teeth, the horrid grin,
And Wolfie said, ‘May I come in?’
Poor Grandmamma was terrified,
‘He’s going to eat me up!’ she cried.
And she was absolutely right.
He ate her up in one big bite.
But Grandmamma was small and tough,
And Wolfie wailed, ‘That’s not enough!
I haven’t yet begun to feel
That I have had a decent meal!’
He ran around the kitchen yelping,
‘I’ve got to have a second helping!’

Then added with a frightful leer,
‘I’m therefore going to wait right here
Till Little Miss Red Riding Hood
Comes home from walking in the wood.’

He quickly put on Grandma’s clothes,
(Of course he hadn’t eaten those).
He dressed himself in coat and hat.
He put on shoes, and after that,
He even brushed and curled his hair,
Then sat himself in Grandma’s chair.

In came the little girl in red.
She stopped. She stared. And then she said,
‘What great big ears you have, Grandma.’
‘All the better to hear you with,’
the Wolf replied.
‘What great big eyes you have, Grandma.’
said Little Red Riding Hood.
‘All the better to see you with,’
the Wolf replied.
He sat there watching her and smiled.
He thought, I’m going to eat this child.
Compared with her old Grandmamma,
She’s going to taste like caviar.

Then Little Red Riding Hood said, ‘
But Grandma, what a lovely great big
furry coat you have on.’

‘That’s wrong!’ cried Wolf.
‘Have you forgot
To tell me what BIG TEETH I’ve got?
Ah well, no matter what you say,
I’m going to eat you anyway.’

The small girl smiles. One eyelid flickers.
She whips a pistol from her knickers.
She aims it at the creature’s head,
And bang bang bang, she shoots him dead.

A few weeks later, in the wood,
I came across Miss Riding Hood.
But what a change! No cloak of red,
No silly hood upon her head.
She said, ‘Hello, and do please note
My lovely furry wolfskin coat.’
Roald Dahl

Analyze the above poem and explain what makes it so appealing to a modern child reader in a 300 word essay. Please focus on form and content.

Sample Solution

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