Arrange the following solutions in order of increasing hydroxide ion concentration (lowest to highest):
a buffer solution with a pH of 11.0
0.5 M HCl
0.1 M HNO3
a solution of HNO2 with a pH of 4.0
water
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Ответ:
0.5 M HCl lowest hydroxide ion concentration
0.1 M HNO3
HNO2 with a pH of 4.0
Water
A buffer solution with a pH of 11.0highest hydroxide ion concentration
Explanation:
A solution with higher number of hydrogen ions is acidic thus has a low pH value.A solution with high number of hydroxide ions is basic thus has high value of pH.A buffer solution are those used to resist the change in the pH value of a solution when small amounts of strong acid or strong base are added.The pH value of pure water is 7 , however the normal value for pH in surface water is 6.5 to 8.5.
Ответ:
the empirical formula is C3H8
Explanation: