Answer:
what's the qstn first ?????
Refrigerants will decompose when exposed to high temperatures from flames or electric resistance heaters. Decomposition may produce toxic and irritating compounds, such as hydrogen chloride and hydrogen fluoride
Answer:
2
Explanation:
The maximum amount of electrons in an atom that can share those quantum numbers because of the spin quantum numbers (ms) +1/2 and -1/2.
Answer:
53.9%
Explanation:
The equation of the reaction is;
C4H6O3+C7H6O3→C9H8O4+C2H4O2
Number of moles of salicyclic acid reacted = 88.3 g/138.121 g/mol = 0.639 moles
1 mole of salicyclic acid yields 1 mole of aspirin
0.639 moles of salicyclic acid also yields 0.639 moles of asprin
Theoretical yield of asprin = 0.639 moles * 180.158 g/mol
Theoretical yield of asprin = 115.12 g
Percent yield = Actual yield/Theoretical yield * 100/1
Percent yield = 62.0 g/115.12 g * 100
Percent yield = 53.9%
Answer:
Dipole-dipole attractions
Explanation:
PBr₃ is a <em>trigonal pyramidal</em> molecule.
The P-Br bonds are polar, with their bond dipoles pointing toward the Br atoms (see below).
The x-components of the dipoles cancel, but the y-components reinforce each other.
The partially negative Br atoms are attracted to the partially positive N atoms in neighboring molecules.
These dipole-dipole forces are the strongest intermolecular forces in PBr₃.