Answer: Copper is being reduced
Explanation:
Answer:
A
Explanation:
Acid chloride: --C=O-Cl. Stretch range ~1750-1820cm-1. I'd probably pick
(A) 1800 cm-1, as this value is in the middle (-ish) of that range.
Hence the correct answer is 1800 cm^-1
Answer:
the answer is B, pH scale
Answer:
In general, the energy needed to remove an electron (the ionization energy) increases as the atomic number increases across a period.
Explanation:
Each additional proton increases the attraction between the nucleus and the electron.
Thus, it takes more energy to remove an electron as you add extra protons.
Answer : The vapor pressure of solution is 23.67 mmHg.
Solution:
As the relative lowering of vapor pressure is directly proportional to the amount of dissolved solute.
The formula for relative lowering of vapor pressure will be,

where,
= vapor pressure of pure solvent (water) = 23.76 mmHg
= vapor pressure of solution= ?
= mass of solute (sucrose) = 12.25 g
= mass of solvent (water) = 176.3 g
= molar mass of solvent (water) = 18.02 g/mole
= molar mass of solute (sucrose) = 342.3 g/mole
Now put all the given values in this formula ,we get the vapor pressure of the solution.


Therefore, the vapor pressure of solution is 23.67 mmHg.