Answer:
and the particles that make them up are
Answer:
potassium (K) and bromine (Br)
Explanation:
- Periodic table is a table of elements in terms of rows and columns in terms of their chemical and physical properties.
- Elements in the same group or columns have similar physical and chemical properties. For example, elements in the same group have the same number of valence electrons or valency.
- Elements in the same period or rows have similar number of energy levels. For example, potassium and bromine belong to the same period in the periodic table and thus have the same number of energy levels.
Answer: The vapor pressure of the solution at is 460.63 mmHg
Explanation:
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,
= relative lowering in vapor pressure
i = Van'T Hoff factor = 1 (for non electrolytes)
= mole fraction of solute =
Given : 11.79 g of chlorophyll is present in 153.2 g of diethyl ether
moles of solute (chlorophyll) =
moles of solvent (diethyl ether) =
Total moles = moles of solute + moles of solvent =0.01319 + 2.067 = 2.080
= mole fraction of solute =
Thus the vapor pressure of the solution at is 460.63 mmHg
Answer:
Explanation:
scientific laws are not your everyday laws but society laws really have to be followed its whats keeps balance in this world