If you are given the
standard potential for the reduction of X^2+ is +0.51 V, and the standard
potential for the reduction of A^2+ is -0.33, just add the two. The standard
potential for an electrochemical cell with the cell is 0.18V
We are given the base dissociation constant, Kb, for Pyridine (C5H5N) which is 1.4x10^-9. The acid dissociation constant, Ka for the Pyridium ion or the conjugate acid of Pyridine is to be determined. We know from our chemistry classes that:
Kw = Kb * Ka
where Kw is always equal to 1x10^-14
so, to solve for Ka of Pyridium ion, substitute Kb to the equation together with Kw and solve for Ka:
1x10^-14 = 1.4x10^-9 * Ka
solve for Ka
Ka = 7.14x10^-6
Therefore, the acid dissociation constant of Pyridinium ion is 7.14x10^-6.
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Answer:
1. Which of these is not an example of a community? an individual who is raising money for cancer research THERE IS NO SUCH THING AS A ONE PERSON COMMUNITY
2. What are folkways? the social customs that teach an individual how to act within a group. FOLKWAYS ARE PART OF OUR CULTURE
3. Which term is associated with this scenario? The governor announces a new program that is designed to improve the algebra scores of ninth-grade students. institution THE ANNOUNCE APPLIES TO ALL HIGH SCHOOLS AND WAS MADE BY AN ELECTED AUTHORITY
4. Which of these statements is true? The family is the main source of socialization in a society. FAMILY IS THE BASIS OF SOCIETY
5. What are mores? the serious prohibitions against deviant behavior in a society that result in severe punishment MORES ARE VERY STRICT SOCIAL NORMS
6. What are laws? the protection of all people within a society EVERYBODY SHOULD BE EQUALLY PROTECTED UNDER THE LAW
NO₂ is a brown gas while N₂O₄ is colorless. If heating causes a brown color to persist, then this means that heating causes the reaction to shift backwards and produce NO₂. Therefore, the reaction must be exothermic.
