A) Write the molecular formula. b) Identify a present organic function
1 answer:
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Answer:
- [H₃O⁺] = 7.586×10⁻⁴ M
Explanation:
The <em>pH</em> of a solution is a measure of the <em>molar concentration of </em><em>H₃O⁺</em> ions in the solution.
The mathematical expresssion that states the relation between the molar concentration of H₃O⁺ ions and the pH of the solution is:
- pH = - log [H₃O⁺].
This is pH is numerically equal to the negative decimal logarithm of the molar concentration of H₃O⁺.
The square brackets are used to indicate molar concentration.
Thus:
- pH = - log [H₃O⁺] ← equation
- 3.120 = -log [H₃O⁺] ← substituting values
- - 3.120 = log [H₃O⁺] ← product property of the multiplication
← antilogarithm property
- [H₃O⁺] = 7.586×10⁻⁴ M ← result
Answer: The ground-state electronic configuration of
1)
2)
Explanation: The electronic configuration of elements is defined as the distribution of electrons around the nucleus of that element. It depends on the atomic number of the element.
Atomic number of the element = Number of electrons.
- For Ru-element
Atomic number = 44
Number of electrons = 44
Electronic configuration of Ru-element =
To form , 2 electrons are released from the neutral Ru-element.
So, the electronic configuration of
- For W-element
Atomic number = 74
Number of electrons = 74
Electronic configuration of W-element =
To form , 3 electrons are released from the neutral W-element.
So, the electronic configuration of