The modern periodic table is organized by the atomic number
Answer:
5.3 x 10⁻⁷ m
Explanation:
Data Given
frequency = 5.7 x 10¹⁴ Hz.
Convert Hz to per seconds (s⁻¹)
1 Hz = 1 s⁻¹
5.7 x 10¹⁴ Hz = 1 x 5.7 x 10¹⁴ = 5.7 x 10¹⁴ s⁻¹
wavelength =?
Solution:
Formula used to calculate wavelength
f = c/λ
rearrange the above equation
λ = c/f ........(1)
Where:
c = speed of light = 3 x 10⁸ ms⁻¹
λ= wavelength
put the values in above equation 1
λ = 3 x 10⁸ ms⁻¹ / 5.7 x 10¹⁴ s⁻¹
λ = 5.3 x 10⁻⁷ m
So the wavelength of light = 5.3 x 10⁻⁷ m
Answer:
Diluting an acid reduces the concentration of the H+ ions that cause acidity, while diluting a base reduces the concentration of the OH- ions that cause basicity.
Explanation:
The pH scale covers a range between 0 and 14 pH. A pH of exactly 7 is neutral. pH values greater than 7 are basic, while pH values less than 7 are acidic. The pH scale is logarithmic with a base of 10, meaning each integer pH value is 10 times more acidic or basic than the one preceding or succeeding it respectively. For dilution to decrease the acidity or basicity of a solution, the solvent being used must be less acidic or basic than this solution.
Alternatively, an acidic diluent may be used to dilute a basic solution, or vice versa, in a neutralization reaction. Because of the logarithmic nature of the pH scale, diluting a strong acid or base even slightly causes its respective pH to rise or drop considerably. Weak acids and bases with pH values close to 7 are correspondingly not as affected by dilution.
Mitochondria provides ATP energy in cells after receiving chemical energy. The chloroplast converts energy from the sunlight to chemical energy that is sent to the mitochondria.
Answer:
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