Each row of the table below describes an aqueous solution at 25°C . The second c

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Question

Each row of the table below describes an aqueous solution at

25°C

The second column of the table shows the initial components of the solution.

Use the checkboxes in the third column to explain the type of the initial solution.

The fourth column describes a change in the solution.

i Safari File Edit View History Bookmarks Window Help R d) 89% Ct} Tue Nov 14 1:38 AM C E www-awh aleks.com F A C ALEKS Learn- Hannah Zigman Each Row Of The Table Below Describ... Syllabus- CHM 132- Fall 2017 Mail- zigma1hm@cmich.edu Presentation.pptx ACIDS, BASES AND AQUEOUS EQUILIBRIA Hannah Making qualitative estimates of pH change Each row of the table below describes an aqueous solution at 25 °C The second column of the table shows the initial components of the solution. . Use the checkboxes in the third column to explain the type of the initial solution. alo The fourth column describes a change in the solution. . Use the fifth column to predict how the change in the solution will change its pH initial type solution initial components (check all that apply) effect of change on pH change (check one) pH higher pH lower O pH the same pH higher O acidic O basic H,o add HCI neutral O acidic H,0. HNO, add KNO O pH lower basic neutral acidic basic neutral O pH the same O pH higher H,0. HNO add KOH O PH lower pH the same pH higher pH lower pH the same O acidic O basic H,0 add Na C neutral Explanation Check

Explanation / Answer

A) initially only H2O is present therefore solution is neutral. on adding HCl concentration of H+ ions will increase and hence pH of solution will be lower

B) Initially HNO3 is present which makes the solution acidic . on addition of KNO3 there will be no change in the concentration of H+ ions therefore pH will remain same

C) Initially HNO3 is present which makes the solution acidic . on addition of KOH , acid base neutralization will take place and hence concentration of H+ ions will come down => pH will increase i.e. value will be higher

D)initially only H2O is present therefore solution is neutral. on adding NaCl , there will be no effect and hence pH value will remain same

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Each row of the table below describes an aqueous solution at 25°C . The second c

Each row of the table below describes an aqueous solution at 25°C. The second co

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Each row of the table below describes an aqueous solution at 25°C . The second c

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