Answer:
Explanation:
Hello,
In this scenario, since 11 mg of cyanide per kilogram of body weight is lethal for 50% of domestic chickens, we can determine the lethal amount for a chicken weighing 3 kg using a proportion:
Thus, we find:
Which equates to grams as follows:
Regards.
Answer:
189.2 KJ
Explanation:
Provided Data
light wavelength = 632.8 nm
Convert nm to meters
1 nm = 1 x 10⁻⁹
632.8 nm = 632.8 x 1 x 10⁻⁹ = 6.328 x 10⁻⁷m
What is the energy of 1 mole of photons?
Solution
Used Formula
E = hc/λ
where
E = energy per photon
h = Planck's Constant
Planck's Constant = 6.626 x 10⁻³⁴ Js
c = speed of light
speed of light = 3 × 10⁸ ms⁻¹
λ = wavelength of light
Insert values into the equation
E = hc/λ
E = 6.626 x 10⁻³⁴ Js ( 3 × 10⁸ ms⁻¹ / 6.328 x 10⁻⁷m)
E = 6.626 x 10⁻³⁴ Js (4.741 x 10¹⁴s⁻¹)
E = 3.141 x 10⁻¹⁹J
3.141 x 10⁻¹⁹J indicates the energy for a single photon
Next, we need to determine the energy for 1 mole of photons
It is known that
1 mole contains 6.022 x10²³ photons
Consequently,
Energy for one mole of photons = 3.141 x 10⁻¹⁹J x 6.022 x10²³
Energy for one mole of photons = 1.89 x 10⁵ J
Now convert J to KJ
1000 J = 1 KJ
1.89 x 10⁵ J = 1.89 x 10⁵ /1000 = 189.2 KJ
Thus,
the energy for one mole of photons is 189.2 KJ
Answer:
The configurations are illustrated below.
Explanation:
Hydrogen possesses a single electron in its outer shell, carbon has 4, nitrogen has 5, and oxygen holds 6. To achieve an octet (or duet for hydrogen), they require 1, 4, 3, and 2 electrons respectively.
Therefore, each hydrogen atom will share one electron with carbon, while the remaining electron will be shared with nitrogen, maintaining 4 electrons available for sharing. Carbon can form two bonds with both oxygen atoms, expanding its octet; however, this renders it unstable, leading to the formation of resonance structures (redistribution of electrons), and charge formation. One of the oxygen atoms will share only one electron with nitrogen.
The two structures are depicted below.
Answer:
(A) It can be a fundamentally arbitrary process.
Explanation:
In various human disorders, the natural process of protein folding may malfunction, generally beginning with the formation of a very compact state. This process may also include a systematic decrease in the variety of conformational states and the initial creation of localized structures. Thus, option (A) is the only incorrect statement.
