The information that is most useful to determine which will have a lower freezing point is the van't Hoff factor of each solute. It is the number of ions that is ionized when the solute are in solution. The higher this value, the lower is the freezing point of the solution given they have the same concentration.
You want to convert mass to moles and then moles to particles/atoms:
69.7gNi x 1mol/58.7gNi x 6.022•10^23/1 mol = 7.15 x 10^23
Answer:
C
they store genetic information
To solve for the concentration of nitric acid in mol/L or also M. We use the equation,
M₁V₁ = M₂V₂
Where M stands for the molarity and V is for volume. Substituting the known values,
(0.10 M)(13.0 mL) = (M₂)(17 mL)
M₂ = 0.076 M
Thus, the concentration of the nitric acid is approximately 0.076 M.
Option 4 or the dissolution of the oxygen decreases
