Answer :
The Ph range is 4.991 TO 9.076.
The dissolution of Mg(oh)2 is decreased by
Mg(oh)2 → Mg 2+ + 2OH-
PKsp = 11.15
Ksp = [tex]10^{-11.5}[/tex]
OH- = 7.07 × [tex]10^{-12}[/tex]/0.050
Poh = - log 7.07 × [tex]10^{-12}[/tex] = 4.924
The Ph range is 9.076
The dissolution of Cu(oh)2 is decreased by
Cu(oh)2 → Cu 2+ + 2OH-
PKsp = 19.32
Ksp = [tex]10^{-19.32}[/tex]
OH- = 9.7863 × [tex]10^{-10}[/tex]
Poh = - log 9.7863 × [tex]10^{-10}[/tex] = 9.009
The Ph range is 4.991 to 9.076
Water's pH is a gauge of how acidic or basic it is. The range is 0 to 14, with 7 serving as the neutral value. Acidity is indicated by pH values below 7, whereas baseness is shown by pH values over 7. In reality, pH is a measurement of the proportion of free hydrogen and hydroxyl ions in the water. Water that contains more free. hydrogen ions. is acidic, whereas water. that contains. more free hydroxyl. ions is basic. Since chemicals in the water can change pH, pH is a crucial sign of a chemical change in the water. "Logarithmic units" are used to express pH. Each value corresponds to a 10-fold variation in the water's acidity or basicity. Water with a pH. of 5 is 10 times. more acidic. than water.
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