<u>Answer:</u>
0.00926
<u>Explanation:</u>
no. of moles = mass ÷ molar mass (RMM)
Molar mass of Al is 27.
∴ no. of moles = 0.25 ÷ 27
= 0.00926 moles (3 s.f.)
Data Given:
[H⁺] = 3.16 × 10⁻⁷ M
To Find:
pH = ?
Solution:
As we know that,
pH = -log [H⁺]
Putting values,
pH = -log (3.16 × 10⁻⁷)
pH = 6.50
Kind of Solution:
As we know, when pH of a solution is equal to 7, it is Neutral. When less than 7, its Acidic and when greater than 7, it is Basic. As this solution has pH 6.50, which is less than 7, so it is slightly Acidic in Nature.
<span>because if there is the same amount of atoms on the reactants and the products obviously none is lost :)</span>
Answer:
The growth of the plant
Explanation:
The growth of the plant from the bean soil is the dependent variable I believe. This is because it could change depending on many factors for e.g. the amount of light or water
Answer:
Louis-Bernard Guyton De Morveau
Explanation:
He is who proposed the first systematic nomenclature for naming chemical compounds.