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Section 2 Extra Credit Consider the following salts. Which of the following would give an acidic pH solution when dissolved in water? I. NH4Br             II. K2SO3             III. BaCl2

When Technetium-95 decays by positron emission, the product nucleus formed is…

Consider the chemical equilibrium in a reaction vessel:             N2(g)   +   3 H2(g)  

Extra Credit Section 1 What is the van’t Hoff factor, i, for the salt (NH4)2SO3?

A buffer consists of 1.00 M HC7H5O2 (Ka=6.46×10-5) and 1.50 M NaC7H5O2.  What is the pH of this buffer?  Give pH to two decimal places.

The molar solubility of silver phosphate, Ag3PO4, is 4.26×10-5.  Determine the Ksp of silver phosphate.  Give your answer to two significant digits.   Ksp=[number]x10^[exponent]

Consider the following chemical reactions:   2 K(s) +  F2(g)  

Consider the chemical equilibrium in a reaction vessel:             2 NH3(g)  

Consider the following Voltaic Cell, Select the correct answer from the drop box for each question. Which electrode will act as the anode? [answer1] Which way do electrons travel through the external wire connecting the electrodes? [answer2] As the battery runs, what will happen to the concentration of Ag+ as time increases? [answer3] Which electrode would gain mass as the battery runs? [answer4] Which direction would anions travel through the solution? [answer5]      

Section 3 Extra-credit A particular reaction has