Acids and Bases Exit Ticket

Posljednje ažuriranje over 1 year ago

14

SECTION A

The following questions relate to these four solutions:

SECTION B

Kw at 25 ^oC is 1 x 10^-14

2

3

SECTION C

2

4

1

2

Biblioteka

Acids and Bases Exit Ticket

Posljednje ažuriranje over 1 year ago

14

SECTION A

The following questions relate to these four solutions:

1

Consider solution A:
What is the concentration of hydronium ions?

1 x 10^-12 mol.dm^-3

0,02 mol.dm^-3

1 x 10^-14 mol.dm^-3

1 x 10^-2 mol.dm^-3

1

2

SECTION B

Kw at 25 ^oC is 1 x 10^-14

2

What does the size of the Kw value indicate about water's ability to ionise?

3

Describe what happens to the K^w of water when the following changes are made:

K_w decreases
K_w increases
K_w remains the same

Temperature is greater than 25 ^oC
Temperature is less than 25 ^oC
A small amount of acid is added

SECTION C

2

Order the following K_a values in order from strongest acid to weakest acid:

2 x 10^-1
1 x 10^-5
0,8
1 x 10¹
1 x 10^-2

4

Drugi mogući odgovor:

H₃O⁺(aq)

H₂O(l)

HC₂O₄^-(aq)

C₂O₄^2-(aq)

4

Drugi mogući odgovor:

HPO₄^2-

H₂PO₄^-(aq)

NH₄⁺(aq)

NH₃(aq)

1

A Brønsted-Lowry base is defined as a substance that

acts as a proton donor

increases [H⁺] when placed in water

acts as a proton acceptor

decreases [H⁺] when placed in water

2

Select the substance(s) which is/are ampholytes

2

Which of these solution(s) are classified as monoprotic acid(s)?

2

Write a K_a expression for any one acid shown. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

2

Write a K_b expression for any one base shown above. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

2

Arrange solutions (A-D) from lowest to highest pH. Click and drag them into correct position.

B
D
C
A

What does the size of the Kw value indicate about water's ability to ionise?

Describe what happens to the K^w of water when the following changes are made:

K_w decreases
K_w increases
K_w remains the same

Temperature is greater than 25 ^oC
Temperature is less than 25 ^oC
A small amount of acid is added

Order the following K_a values in order from strongest acid to weakest acid:

2 x 10^-1
1 x 10^-5
0,8
1 x 10¹
1 x 10^-2

Drugi mogući odgovor:

H₃O⁺(aq)

H₂O(l)

HC₂O₄^-(aq)

C₂O₄^2-(aq)

Drugi mogući odgovor:

HPO₄^2-

H₂PO₄^-(aq)

NH₄⁺(aq)

NH₃(aq)

A Brønsted-Lowry base is defined as a substance that

acts as a proton donor

increases [H⁺] when placed in water

acts as a proton acceptor

decreases [H⁺] when placed in water

Select the substance(s) which is/are ampholytes

Write a K_a expression for any one acid shown. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Write a K_b expression for any one base shown above. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Arrange solutions (A-D) from lowest to highest pH. Click and drag them into correct position.

B
D
C
A

Consider solution A:
What is the concentration of hydroxide ions?

1 x 10^-12 mol.dm^-3

1 x 10^-2 mol.dm^-3

0,02 mol.dm^-3

1 x 10^-14 mol.dm^-3

Acids and Bases Exit Ticket

SECTION A

SECTION B

SECTION C

Acids and Bases Exit Ticket

SECTION A

Which of these solution(s) are classified as monoprotic acid(s)?

Consider solution A:
What is the concentration of hydronium ions?

SECTION B

What does the size of the Kw value indicate about water's ability to ionise?

Describe what happens to the K^w of water when the following changes are made:

SECTION C

Order the following K_a values in order from strongest acid to weakest acid:

A Brønsted-Lowry base is defined as a substance that

Select the substance(s) which is/are ampholytes

Which of these solution(s) are classified as monoprotic acid(s)?

Write a K_a expression for any one acid shown. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Write a K_b expression for any one base shown above. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Arrange solutions (A-D) from lowest to highest pH. Click and drag them into correct position.

Consider solution A:
What is the concentration of hydronium ions?

Consider solution A:
What is the concentration of hydroxide ions?

Consider solution A:
What is the pH?

What does the size of the Kw value indicate about water's ability to ionise?

Describe what happens to the K^w of water when the following changes are made:

Order the following K_a values in order from strongest acid to weakest acid:

A Brønsted-Lowry base is defined as a substance that

Select the substance(s) which is/are ampholytes

Write a K_a expression for any one acid shown. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Write a K_b expression for any one base shown above. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Arrange solutions (A-D) from lowest to highest pH. Click and drag them into correct position.

Consider solution A:
What is the concentration of hydroxide ions?

Consider solution A:
What is the pH?

Acids and Bases Exit Ticket

SECTION A

SECTION B

SECTION C

Acids and Bases Exit Ticket

SECTION A

Which of these solution(s) are classified as monoprotic acid(s)?

Consider solution A: What is the concentration of hydronium ions?

SECTION B

What does the size of the Kw value indicate about water's ability to ionise?

Describe what happens to the Kw of water when the following changes are made:

SECTION C

Order the following Ka values in order from strongest acid to weakest acid:

A Brønsted-Lowry base is defined as a substance that

Select the substance(s) which is/are ampholytes

Which of these solution(s) are classified as monoprotic acid(s)?

Write a Ka expression for any one acid shown. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Write a Kb expression for any one base shown above. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Arrange solutions (A-D) from lowest to highest pH. Click and drag them into correct position.

Consider solution A: What is the concentration of hydronium ions?

Consider solution A:What is the concentration of hydroxide ions?

Consider solution A:What is the pH?

What does the size of the Kw value indicate about water's ability to ionise?

Describe what happens to the Kw of water when the following changes are made:

Order the following Ka values in order from strongest acid to weakest acid:

A Brønsted-Lowry base is defined as a substance that

Select the substance(s) which is/are ampholytes

Write a Ka expression for any one acid shown. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Write a Kb expression for any one base shown above. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Arrange solutions (A-D) from lowest to highest pH. Click and drag them into correct position.

Consider solution A:What is the concentration of hydroxide ions?

Consider solution A:What is the pH?

Consider solution A:
What is the concentration of hydronium ions?

Describe what happens to the K^w of water when the following changes are made:

Order the following K_a values in order from strongest acid to weakest acid:

Write a K_a expression for any one acid shown. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Write a K_b expression for any one base shown above. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Consider solution A:
What is the concentration of hydronium ions?

Consider solution A:
What is the concentration of hydroxide ions?

Consider solution A:
What is the pH?

Describe what happens to the K^w of water when the following changes are made:

Order the following K_a values in order from strongest acid to weakest acid:

Write a K_a expression for any one acid shown. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Write a K_b expression for any one base shown above. To do this, click on "show your work" and either use a combination of the text box and pen tools OR write it on paper and use the insert function to insert a photo

Consider solution A:
What is the concentration of hydroxide ions?

Consider solution A:
What is the pH?