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

ID: 586805 • Letter: E

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. . Use the fifth column to predict how the change in the solution will change its pH. solution initial components (check all that apply) effect of change on pH initial type change (check one) O pH higher addic basic neutral acidic basic neutral acidic basic add KNO, O pH lower O pH the same O pH higher B. H20, HNO add KOH O pH lower O pH the same O pH higher pH lower H2O add NaC neutral DH the same

Explanation / Answer

this starts acidic, due to HNO3, then addition of KNO3, an intert salt, will maintain the pH, i.e. ti remains the same

this starts acidic, due to HNO3, then addition of KOH, a strong base, will reac tH+ Oh- to form water, then, pH must increase, it becomes higher

water --> neutral , then additino of Nacl, intert salt, no effect in pH, remains the same

H2O neutral , then additino of NaOH , strong base, then there is Oh- presence, the pH increases drastically, then pH = higher

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Each row of the following table shows two queries. In the blank third column of

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

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

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