Answer:
When a molecule is excited to a higher state it often ends up in its lowest excited state S1 and then emits radiation.
Answer:
Explanation:
To determine what is been asked in this question, firstly, the formula to determine the number of atoms present in a substance must be used. The formula is
number of atoms = n × 6.02 × 10²³
where n is the number of moles
6.02 × 10²³ is avogadro's number
The number of atoms needed (to be present) has already been provided in the question as 2 × 10²⁴
Thus;
2 × 10²⁴ = n × 6.02 × 10²³
n = 2 × 10²⁴ ÷ 6.02 × 10²³
n = 3.32
The number of moles of carbon that will be placed in the reaction will be 3.32 but to determine the amount/mass of carbon that will be used in the reaction, we will use the formula
n = mass/molar mass
The molar mass of carbon is 12 g/mol
Thus;
3.32 = mass/12
mass = 3.32 × 12
mass = 39.84 g
The mass of carbon that will be required for the reaction will be 39.84, the procedure above shows how to obtain this amount.
Answer:
Considering the side chain of each of the amino acids at pH 7.4, is that amino acid classified at neutral, basic, or acidic? You are currently in a sorting module. Turn off browse mode or quick nav, Tab to items, Space or Enter to pick up, Tab to move, Space or Enter to drop. Neutral Basic Acidic
The answer is in the the images. I have placed all the structures in the specific boxes. I hope this helps.
POH = pKb + log [salt] / [base] ---> Basic Buffer
and pH = 14 - pOH
to predict the relative concentrations of the buffer components you need to know both pKb and pH...
While in this case only pKb is given and the pH of buffer is not given. So, nothing can be concluded about the relative concentrations of CH₃NH₂ and CH₃NH₃Cl
Answer:
Nitrogen and oxygen are the most common elements in the atmosphere. They make up almost 99% of the atmosphere by mass. Argon makes up most of the rest of the atmosphere.
