Answer:
Molarity = 0.24 M
Explanation:
Given data:
Number of moles of Mg(NO₃)₂ = 0.181 mol
Volume of solution = 0.750 L
Molarity of solution = ?
Solution:
Molarity is used to describe the concentration of solution. It tells how many moles are dissolve in per litter of solution.
Formula:
Molarity = number of moles of solute / L of solution
by putting values,
Molarity = 0.181 mol / 0.750 L
Molarity = 0.24 M
Answer:
The answer is option 2.
Explanation:
Given that the formula to find kinetic energy is K.E = 1/2×m/v² where v represent the speed of an object. So if the speed increases, kinetic energy also increase.
Therefore, kinetic energy has the highest amount at 60 mph.
Answer: In a half-cell is where occurs the either oxidation (loss of electrons) or reduction (gain of electrons) but not both.
Explanation:
1) In an electrolitic cell you can identify two half-cells.
2) In one half-cell occurs the oxidation
3) In the other half-cell occurs the reduction.
4) The half-cell where oxidation occurs is the anode.
In the anode the spieces increase its oxidation number, which is what oxidation means. Increasing the oxidation number means that the spieces is losing electrons.
5) The half-cell where reduction occurs is the cathode.
Reduction is the reduction of the oxidation number and this occurs due to the gain of electrons.