The overall charge of the given compound of potassium and Arsenic is zero (0).
<h3>What is the charge of an atom?</h3>
An atom consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. When the number of protons exceed the number of electrons, the atom will positively charged and it will be negatively charged if the number of electrons exceed the number of protons.
For the given compound;
- KAs; As (Arsenic = -3) + K (potassium = +3)
- KAs overall charge = -3 + 3 = 0
Thus, the overall charge of the given compound of potassium and Arsenic is zero (0).
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Among the choices the answer should be <span>2-bromo 2-phenylsince benzyllic carbocation is highly stable.</span>
Answer:
Mole fraction of solute is 0.0462
Explanation:
To solve this we use the colligative property of lowering vapor pressure.
First of all, we search for vapor pressure of pure water at 25°C = 23.8 Torr
Now, we convert the Torr to mmHg. Ratio is 1:1, so 23.8 Torr is 23.8 mmHg.
Formula for lowering vapor pressure is:
ΔP = P° . Xm
Where ΔP = P' (Vapor pressure of solution) - P° (Vapor pressure of pure solvent)
Xm = mole fraction
24.9 mmHg - 23.8 mmHg = 23mmHg . Xm
Xm = (24.9 mmHg - 23.8 mmHg) / 23mmHg
Xm = 0.0462