The photograph below shows what occurs when a solution of potassium chromate is treated with a few drops of concentrated hydrochloric acid. Some of the bright yellow chromate ion is converted to the orange dichromate ion. 2 CrO 4 2− (aq) + 2 H 3 O + (aq) ⇄ CrO 7 2− (aq) + 3 H 2 O( ℓ ) (a) Explain this experimental observation in terms of Le Chatelier’s principle. (b) What would you observe if you treated the orange solution with sodium hydroxide? Explain your observation.
The photograph below shows what occurs when a solution of potassium chromate is treated with a few drops of concentrated hydrochloric acid. Some of the bright yellow chromate ion is converted to the orange dichromate ion. 2 CrO 4 2− (aq) + 2 H 3 O + (aq) ⇄ CrO 7 2− (aq) + 3 H 2 O( ℓ ) (a) Explain this experimental observation in terms of Le Chatelier’s principle. (b) What would you observe if you treated the orange solution with sodium hydroxide? Explain your observation.
The photograph below shows what occurs when a solution of potassium chromate is treated with a few drops of concentrated hydrochloric acid. Some of the bright yellow chromate ion is converted to the orange dichromate ion.
2 CrO42−(aq) + 2 H3O+(aq) ⇄ CrO72−(aq) + 3 H2O(ℓ)
(a) Explain this experimental observation in terms of Le Chatelier’s principle.
(b) What would you observe if you treated the orange solution with sodium hydroxide? Explain your observation.
1A
H 2A
Li Be
Use the References to access important values if needed for this question.
8A
3A 4A 5A 6A 7A He
B C N O F Ne
Na Mg 3B 4B 5B 6B 7B 8B-1B 2B Al Si P
1B 2B Al Si
P S Cl Ar
K Ca Sc Ti V Cr Mn Fe Co Ni Cu Zn Ga Ge As Se Br Kr
Rb Sr Y Zr Nb Mo Tc Ru Rh Pd Ag Cd In Sn Sb Te I Xe
*
Cs Ba La Hf Ta W Re Os Ir Pt Au Hg Tl Pb Bi Po At Rn
Fr Ra Ac Rf Ha
******
Ce Pr Nd Pm Sm Eu Gd Tb Dy Ho Er Tm Yb Lu
Th Pa U Np Pu Am Cm Bk Cf Es Fm Md No Lr
Analyze the following reaction by looking at the electron configurations given below each box.
Put a number and a symbol in each box to show the number and kind of the corresponding atom or ion.
Use the smallest integers possible.
cation
anion
+
+
Shell 1: 2
Shell 2: 8
Shell 3: 1
Shell 1 : 2
Shell 2 : 6
Shell 1 : 2
Shell 2: 8
Shell 1: 2
Shell 2: 8
None
IV.
Show the detailed synthesis strategy for the following compounds.
a. CH3CH2CH2CH2Br
CH3CH2CCH2CH2CH3
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Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell