Answer:
The change in concentration of H+ ions is -9.99×10⁻⁵
Explanation:
When pH rises, we talk about neutralization and, there is a decline in proton's concentration.
pH lower than 7 is acid
pH higher than 7 is basic
Protons are neutralized by hydroxides to make water as this:
H₃O⁺ + OH⁻ ⇄ H₂O
pH = - log [H₃O⁺]
[H₃O⁺] = 10^-pH
In conclussion: [H₃O⁺]₁ = 10⁻⁴ → 1×10⁻⁴
[H₃O⁺]₂ = 10⁻⁷ → 1×10⁻⁷
1×10⁻⁷- 1×10⁻⁴
The change in concentration of H+ ions is -9.99×10⁻⁵
Answer: According to Moseley, similar properties recur periodically when elements are arranged according to increasing atomic number. Atomic numbers, NOT weights, determine the factor of chemical properties.
Mendeleev realized that the physical and chemical properties of elements were related to their atomic mass in a "periodic" way, and arranged them so that groups of elements with similar properties fell into vertical columns in his table
Fractinal distillation is used in the production of gasoline, distilled water, xylene, alcohol, paraffin, kerosene, and many other liquids.
Answer:
0.06M
Explanation:
Using the formula as outlined in this question,
C1V1= C2V2
Where;
V1 = initial volume (Litres)
C1 = initial concentration (M)
V2 = final volume (Litres)
C2 = final concentration (M)
According to the information provided on NaOH in this question, V1 = 100mL = 100/1000 = 0.1 L, V2 = 1L, C1 = 0.6M, C2 = ?
C1V1= C2V2
0.6 × 0.1 = C2 × 1
0.06 = C2
C2 = 0.06M
The new concentration of NaOH is 0.06M.
Answer:
Louis Sullivan designed Wainwright Building by using steel framework with masonry sheathing.
Explanation:
Louis Henry Sullivan is called as 'father of modernism' was an architect who build the Wainwright Building.
He took the idea from Marcus Vitruvius Pollio and used cast in iron or called terra cotta that contain vines and ivy that gives more geometric design.
Terra cotta is lighter and easy to use than stone masonry.
All of these materials are used in constructing Wainwright Building,Guaranty Building.
As he first invent to design the remarkable designs,he is called as father of American skyscraper
