Answer:
1) [OH⁻] = 0.065 M
2) [H₃O⁺] = 1.54 x 10⁻¹³ M.
3) pH = 12.81.
Explanation:
HCl is completely dissociated yo its ions in solution:
<em>KOH + H₂O → H₃O⁺ + K⁺ + OH⁻,
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1) [OH⁻] = 0.065 M.
<em>2) [H₃O⁺]:
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∵ [H₃O⁺][OH⁻] = 10⁻¹⁴.
∴ [H₃O⁺] = 10⁻¹⁴/[OH⁻] = 10⁻¹⁴/(0.065 M) = 1.54 x 10⁻¹³ M.
<em>3) pH:
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For strong acids like HCl:
pH = - log[H₃O⁺] = - log[1.54 x 10⁻¹³ M] = 12.81.
Answer:
because of the mechanisms allowing water to pass through when it closes the water stops flowing through
Explanation:
The energy of an object due to its motion or position; the sum of an object's kinetic energy and potential energy
Answer:Metals are mostly used in the alloy form like steel that is anticorrosive. Food cooked in earthy metal utensils is healthier than by plastic utensils. They do not react or change form while cooking to leave any trace particles on the surface . Food odors are not retained by metal cookware unlike the plastic ware
Explanation:
A cucumber is placed in a concentrated salt solution. What will most likely happen?
Answer:
If a cucumber is emerged in a very strong salt solution, the resulting pickles is shivered. It is because the cucumber tends to remove or lose water when placed in that particular environment.