Answer:
0.200 m K3PO3
Explanation:
Let us remember that the freezing point depression is obtained from the formula;
ΔTf = Kf m i
Where;
Kf = freezing point constant
m = molality
i = Van't Hoff factor
The Van't Hoff factor has to do with the number of particles in solution. Let us consider the Van't Hoff factor for each specie.
0.200 m HOCH2CH2OH - 1
0.200 m Ba(NO3)2 - 3
0.200 m K3PO3 - 4
0.200 m Ca(CIO4)2 - 3
Hence, 0.200 m K3PO3 has the greatest van't Hoff factor and consequently the greatest freezing point depression.
B. 8
Although it may seem that transition metals would have more than 8 valence electrons, they in fact do not.
Benzene
- Benzene has low density than the water itself of about 0.9 g/cm³
Low denisty object than the water usually <u>floats on the water</u>.
Another example: orange peel which floats on water has density of about 0.84 g/cm³
A vascular system<span> in </span>plants<span> is a series of tubes that </span>can<span> transport water and nutrients over a ... </span>Without<span>a </span>vascular system<span>, mosses, and liverworts cannot </span>grow<span> very large. ... These are considered to be the simplest of all </span>plants<span> and often </span>grow<span> flat along the </span>ground<span> in large leaf-like structures.</span>
