Answer:
0.5moles
Explanation:
Given parameters:
Volume of solution= 0.25L
Molarity of solution = 2.00M
Unknown:
Number of moles = ?
Solution:
To solve this problem;
Molarity is the number of moles of solute in a given volume of solution, so
Number of moles = molarity x volume
Now insert the parameters and solve;
Number of moles = 0.25 x 2 = 0.5moles
1, 2, 1, 2, in that order.
Answer:
c. increased as the temperature is increased
Explanation:
The dissolution of a solute in a solvent to form a solution usually occur in three steps, which are delta H1, delta H2 and delta H3.
For dissolving an ionic solid, the lattice energy, which is the energy that is holding the ionic particles in place correspond to DELTA H2 and it is the energy that must be conquered. The higher the charge in the ionic solid, the higher the lattice energy. The lattice energy must be overcome in order for the solid to dissolve.
Glucose + Oxygen > Carbon Dioxide
C(6)H(12)0(6)+ 0(2) >CO(2)
