Answer:
Explanation:
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In this case, given the Henderson-Hasselbach equation, it is possible for us to compute the pH by firstly computing the concentration of the acid and the conjugate base; for this purpose we assume that the volume of the total solution is 0.025 L and the molar mass of the sodium base is 234 - 1 + 23 = 256 g/mol as one H is replaced by the Na:
And the concentrations are:
Then, considering that the Ka of this acid is 2.5x10⁻⁵, we obtain for the pH:
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Answer: time on earth is measured by tracking earth's movement in relation to the axis
Explanation:
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Answer:
Explanation:
Iron Haber process = (making ammonia)
Vanadium (V) oxide = Contact process (a stage in making sulfuric acid)
Manganese dioxide = Decomposition of hydrogen peroxide (produces water and oxygen)
The volume of base that is actually needed is 24.5 ml of base.
Titration is a chemical technique which is used in chemistry to find out the concentration of an unknown solution. A solution of known concentration is usually used to determine the concentration of the unknown solution. The known solution is usually added to a specific quantity of the unknown solution until the reaction is complete. An indicator is typically added to the unknown solution and the reaction is deem to be completed when there is a color change in the unknown solution.
Thus, the volume of the base that is required to reach the color end point is actually the base volume that is needed for the reaction.