Go back to browse: Free exams and quizzes

Free Exam: isis B kap 4 nye spm

Number of Questions in Test: 16
Number of Questions in Preview: 5
Register to view all questions.

Note: Answers are not shown below but will be copied with this test.

Copy this test to my quiz maker account

Register with ClassMarker to copy free tests to give to your Test takers.

Register now
Question 1
salpetersyrling, HNO[sub]2[/sub], har syrestyrkekonstanten 4,47*10-4 M.

Hvordan klassificeres syren?
Type: Multiple choice
Points: 1
Randomize answers: No
Question 2
Eddikesyre har syrestyrkeeksponenten 4,76.



Hvad er basestyrkeeksponenten for eddikesyres korresponderende base, acetation?
Type: Multiple choice
Points: 1
Randomize answers: Yes
Question 3
Salpetersyres reaktion med vand ser således ud,

[cmimg]0/5964565_ZY8UEQ5T.png[/cmimg]



Syrestyrkekonstanten for reaktionen kan beregnes ud fra denne formel,

[cmimg]0/5964565_51IHROYU.png[/cmimg]



Forklar hvorfor vand ikke indgår i formlen
Type: Essay
Points: 1
Randomize answers: No
Question 4
Hvad kaldes denne størrelse (kært barn har mange navne...)



[cmimg]0/5964565_6L0SIV9E.png[/cmimg]
Type: Multiple response
Points: 1
Randomize answers: Yes
Question 5
Ostwalds fortyndingslov beskriver omdannelsesgraden af en syre, ud fra styrkekonstant og formel koncentration for syren. 

[cmimg]0/5964565_HK6G1GUI.png[/cmimg]

Beregn omdannelsesgraden for fosforsyre i en 0,02 M opløsning (ca. som afgasset Cola). K[sub]s[/sub](fosforsyre) = 7,59*10[sup]-3[/sup] M
Type: Multiple choice
Points: 1
Randomize answers: Yes
Register free

and create your first custom exams today - no credit card required.

Forgot password? / Register free