ShahinF8592 ShahinF8592
  • 06-03-2024
  • Mathematics
contestada

The pKb of cyanide ion is 4.7. The pH of a solution prepared by mixing 2.5 moles of KCN and 2.5 moles of HCN in water and making the total volume up to 500 ml is:
A. 4.0
B. 4.7
C. 5.0
D. 5.3

Respuesta :

Otras preguntas

Which of the following expressions is between 10 and 11? √10.5 √100 √21 √115
Please help me please
Dr. anodyne found a correlation of .49 between illegal drug use and levels of adolescent delinquency. this correlation is __________ and __________.
Which agent of erosion is responsible for cutting most v-shaped valleys into bedrock?
The nucleus of an atom contains ____. a. ​neutrons only b. ​protons and electrons c. ​neutrons and electrons d. ​neutrons and protons e. ​protons only
Which agent of erosion is responsible for cutting most v-shaped valleys into bedrock?
Where does narrator hide the corpse in "the tell-tale heart"? question 3 options: in the cellar behind the wall behind the mask underneath the floor board plank
Why Was Thomas Paine’s Common Sense Important
If an employee visits a work site every other day and another employee visits the work site every 5 days, when will the two employees be there on the same day?
Why are some rocks smooth and others rough?