0.034 is incorrect. I\'m not sure what it would be. Acidic and basic aqueous sol
ID: 984465 • Letter: 0
Question
0.034 is incorrect. I'm not sure what it would be.
Acidic and basic aqueous solutions can be identified using dyes called indicators. A common indicator in chemistry shows acidic solutions (excess of H^+ ions) as red and basic solutions (excess of OH^- ions) as blue. Consider the following neutralization reaction: H_2SO_3 (aq) + 2 KOH(aq) right arrow K_2 SO_3(aq) + 2H_2 O(l) an acidic aqueous solution containing 0.0170 mol of sulfurous acid (H_2SO_3) is added to another basic aqueous solution containing 0.0289 mol of potassium hydroxide (KOH). Answer the following questions: Indicator strips turning color in the presence of acidic and basic solutions. How many moles of potassium hydroxide are neutralized by the sulfurous acid Which reactant is in excess After mixing, if you dipped one of the indicator strips into the solution, would the strip be red (acidic) or blue (basic)Explanation / Answer
In the reaction, H2SO3+ 2KOH----> K2SO3+ 2H2O, theoretical molar ratio of reactants H2SO3: KOH= 1:2
Actual ratio of reactants : 0.0170: 0.0289 dviding this ratio by the lowest number that is 0.0170 it becomes =1: 1.7
SO KOH is the limiting reactatns and all the KOH gets consumed hence the amount of KOH neutralized =0.0289 mole
Excess reactants is H2SO3. Since H2SO3 is remaining, the strip will be red (acidic)
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