The formula is:
frequency * h (Planck's constant) = Energy
So, to find frequency you need just divide energy by the constant:
frequency = (8 * 10^-15 J) / (6.63 * 10^-34 J*s) = 1.2 * 10^19 1/s or 1.2 * 10^19 Hz
Explanation:
thank you thank you thank you for the points
Predators? I just looked it up lol
Answer:
Magnetic field lines can be drawn by moving a small compass from point to point around a magnet. At each point, draw a short line in the direction of the compass needle. ... This is shown in Figure 20.11, which shows the magnetic field lines created by the two closely separated north poles of a bar magnet.
PKa is defined as the logarithm of the inverse of Ka, i.e
pKa = log ( 1 / Ka)
Ka is the dissociation constant of the acid. The larger Ka the stronger the acid.
On the other hand, from pKa = log (1 / Ka) the larger Ka the smaller 1 /Ka, and so the smaller log (1/Ka).
So, the relation between Ka and pKa is inverse, which means that an acid with greater value of pKa will have lower value Ka, and so it will be weaker or the smaller the pKa the stronger the acid.
Therefore, in our case HA has the lower pKa ant it will be the stronger acid.
Answer: HA is the stronger acid, because it has the lower pKa and pKa is inversely related to the strength of the acid.
