Dipole Dipole Forces. LDFs are too weak to remain as liquids at room temperature, making them gases. DDFs are the only possible choice.
-T.B.
Answer: Volume of water to be added is 116 ml.
Explanation:
Elevation in boiling point is given by:
= elevation in boiling point
i= vant hoff factor = 1 (for non electrolyte)
=boiling point constant = 
m= molality
Density of solvent =
(1kg=1000g)
Mass of solute (water) = x g
Density of solute =
Thus the volume of water to be added is 116 ml.
<span>His periodic table provided everyone with the idea that elements should be arranged by the increasing order of their fundamental properties. It was later discovered that atomic number IS the fundamental property</span>
Answer:
The answer to your question is below
Explanation:
1.-
a) Look for the mass number of Gold in the periodic table
Mass number = 197 g
Use proportions to answer this question
197 g of gold ------------- 6.023 x 10 ²³ atoms
4.64 g of gold ---------- x
x = (4.64 x 6.023 x 10²³) / 197
x = 1.42 x 10²² atoms
2.- mass of 4.12 x 10²⁴ molecules of glucose
Molecular mass = (6 x 12) + (12 X 1) + (6 x 16)
= 72 + 12 + 96
= 180 g
180 g of glucose ------------------- 6.023 x 10 ²³ molecules
x ------------------- 4.12 x 10 ²⁴ molecules
x = (4.12 x 10²⁴ x 180) / 6.023 x 10²³
x = 1231.3 g of glucose
