<span>128 g/mol
Applying Graham's law of effusion, we can utilize the formula:
r1/r2 = sqrt(m2/m1)
where
r1 = effusion rate of gas 1
r2 = effusion rate of gas 2
m1 = molar mass of gas 1
m2 = molar mass of gas 2
Given that the atomic weight of oxygen is 15.999, the molar mass of O2 = 2 * 15.999 = 31.998.
We can now insert the known values into Graham's equation to find m2.
r1/r2 = sqrt(m2/m1)
2/1 = sqrt(m2/31.998)
4/1 = m2/31.998
Thus, we find m2 to be 127.992.
Rounding to three significant figures yields 128 g/mol</span>
The amino acids classified under the first group include alanine, aspartate, and glutamate, whereas those in the second group consist of glycine, valine, proline, leucine, isoleucine, methionine, serine, threonine, cysteine, asparagine, glutamine, phenylalanine, tryptophan, tyrosine, lysine, arginine, and histidine.
The accompanying illustration depicts the structure of dimethyl terephthalate. Explanation: Dimethyl terephthalate, whose chemical formula is C6H4 (COOCH3) 2, is a diester derived from terephthalic acid and methanol. It appears as a white solid. Another method of syntheses involves p-xylene and methanol, characterized by an oxidation process followed by esterification.
Response:
D. Maximum internal cooking temperature
Clarification:
Per the Storage Ladder Protocol, proper rules must be followed when storing food in the refrigerator. Prepared dishes belong on the highest shelf; fruits and vegetables are positioned on the next; fish and seafood go on the third; beef and pork are kept on the fourth; ground meat is stored on the fifth; and poultry items sit on the bottom shelf. This illustrates that ground beef should be placed above chicken. A diagram is included below for optimal storage order explanation.
