Answer: 1.0 mol/dm3
Explanation:
Given that:
Amount of moles = 0.25 moles
Volume = 250 millliters of solution
Convert milliliters to liters
If 1000 milliliters = 1 liter
250 milliliters = (250/1000) = 0.25 L
Recall that 1 liter = 1dm3
so, 0.25 liters = 0.25 dm3
Now, molarity is calculated by dividing the amount of a substance by the volume of the solution.
i.e Molarity = (Amount in moles/volume in dm3)
Molarity = (0.25 moles / 0.25 dm3)
= 1.0 mol/dm3
Thus, the molarity of the solution is 1.0 mol/dm3
Answer: Energy is being absorbed as the reaction proceeds
Explanation:
Endergonic reactions are defined as the reactions in which energy of the product is greater than the energy of the reactants. The total energy is absorbed in the form of heat and
for the reaction comes out to be positive.
Exergonic reactions are defined as the reactions in which energy of the product is lesser than the energy of the reactants. The total energy is released in the form of heat and
for the reaction comes out to be negative.
Thus an endergonic reaction refers to a chemical reaction in which Energy is being absorbed as the reaction proceeds.
.500 moles is roughly
.5 * 6.022 * 10^23 = 3.011*10^23 atoms. this is independent of STP
if it’s wrong i’m sorry