Problem: Choose the phrase that best describes the relative acid strength of these acids. NH3 ________ H2Oa) is more acidic thanb) has the same acid strength as c) is less acidic than H2Se________ H2Sa) is more acidic thanb) has the same acid strength as c) is less acidic than

FREE Expert Solution

H is attached to a nonmetal (electronegative) → binary acids

When looking at a binary acid we look at both electronegativity and size to determine their strength


NH3 ________ H2O

• N and O are on the same period (row) → Period 2

• Electronegativity: O > N

• H2O is more acidic than NH3

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Problem Details

Choose the phrase that best describes the relative acid strength of these acids.

 NH3 ________ H2O

a) is more acidic than

b) has the same acid strength as 

c) is less acidic than

 H2Se________ H2S

a) is more acidic than

b) has the same acid strength as 

c) is less acidic than