Can anyone help to answer these questions based on the table ? Conclusions 1. Co

Question

Can anyone help to answer these questions based on the table ?

Conclusions 1. Compare the pH conclusions for each compound determined by the range conclusion from the three indicators, pH from the universal indicator, ponsistent with the ter, and calculated pH). Identify and redo any data that doesn't appear to be rest. Attempt to rationalize any discrepancies not due to faulty data. four different methods (pH I from the pH me- 2. Identify which substances you tested were acids, List them in the order of strength of acidity as acid, explain (by an equation) why it is an acid. (Show that it produces H,O° in water.) If the a second equation (a net an ionic equation e compound is an ionic salt, write one equation for ionization of the solid and onic equation) using only the ion that makes the solution acidic. List them in the order of strength of basicity as explain (by an equation) why it is a base. (Show that it produces water. If the compound is an ionic salt, write one equation for ionization of the solid and, 3. Identify which substances you tested were bases. best t as possible. For each base, OH in water.) If the co if necessary, a second equation (a basic. net ionic equation) using only the ion that makes the solution 4. Using the pH of the 0.10 M AICI, solution, determine the K, for AICL,

Explanation / Answer

1. Each indicatory has its own pH range as shown below.

a. Universal indicator

b. Phenolphthalein indicator (Hph):

The pH range= 8 - 12

c. Thymol blue indicator:

The pH range = 1.2 - 2.8 and 8 - 9.6

d. Methyl orange indicator:
The pH range = 3.1 - 4.4

Accordinlgy the tabular pH values are there.

pH range Description Colour < 3 Strong acid        Red 3–6 Weak acid        Orange or yellow 7 Neutral        Green 8–11 Weak base         Blue > 11 Strong base         Violet or Indigo

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