briannabo08
07.04.2021 •
Chemistry
How much heat, in joules, must be added to 47.0 grams of aluminum gas to increase the temp from 3000 degrees Celsius to 3050 degrees Celsius? Hint: Use the specific heat capacity from the table provided
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Ответ:
[H₃O⁺] = 1.99x10⁻⁶
Explanation:
pH + pOH = 14
pH = 14 - 8.30
pH = 5.7
10*-pH = [H₃O⁺]
10⁻⁵°⁷ = 1.99x10⁻⁶
Let's see another way to solve
[H₃O⁺] . [OH⁻] = 1x10⁻¹⁴
10*-pOH = [OH⁻]
10⁻⁸°³ = 5.01x10⁻⁹ → [OH⁻]
[H₃O⁺] . 5.01x10⁻⁹ = 1x10⁻¹⁴
[H₃O⁺] = 1x10⁻¹⁴ / 5.01x10⁻⁹ = 1.99x10⁻⁶