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This one-page homework quiz checks the students’ understanding of pH and pOH, and their relationships to [H+] and [OH-]. The students’ objective is to complete all seven problems – calculate pH from a molar solution of an acid [HCl], calculate the hydrogen ion concentration [H+] if given the pH, calculate the pOH if given the hydroxide ion concentration [OH-], calculate the hydroxide ion concentration [OH-] if given the pOH, calculate the pH if given the concentration of the strong base [OH-], calculate the concentration of the base [OH-] if given the concentration of the acid [H+], and calculate the concentration of the acid [H+] from a pOH value.
I included an equation key in the upper left corner of the student sheet that displays six key equations. I also added a text box at the bottom of the quiz, reminding them of the significant figure rule for standard numbered values like molarity versus the unique rule where only the numbers after the decimal are significant in pH and pOH.
I provided a one-page answer key that shows the work with answers in colored font. This quiz is editable. This activity could be renamed and used as a worksheet instead. On a side note, the problems are more spaced out than what the thumbnails show.
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