Answer:
6.6 x 10⁻⁵ mol/L
Explanation:
First, we have to convert the moles from μmol to mol:
moles of solute= 33.0 μmol x (1 x 10⁶ mol)/1 μmol = 3.3 x 10⁻⁵ mol
Then, we convert the volume from mL to L:
volume = 500.0 mL x 1 L/1000 mL = 0.5 L
Finally, we calculate the concentration of the solution in mol/L by dividing the moles into the volume in liters, as follows:
mol/L = moles of solute/volume = 3.3 x 10⁻⁵ mol/(0.5 L) = 6.6 x 10⁻⁵ mol/L
Explanation:
The term means change in entropy. As entropy means the measure of randomness. This means that more randomly molecules of a substance are moving more will be its entropy.
If value of is negative then it means there is decease in entropy. When value of is positive then it means there is increase in entropy.
In solids, molecules are closer to each other. So, entropy is minimum. Liquids has more entropy than solids and gases has maximum entropy.
- In the reaction, , total 4 moles of gases form 2 mole of a gas. This means there is decrease in number of moles. As a result, there will be decrease in entropy. So, sign of is negative.
- In the reaction, , total 1 mole of solid substance is forming total 2 moles of gases. That is, there is increase in entropy. So, sign of is positive.
- In the reaction, , total 2 moles of gases are forming total 1 mole of liquid methanol. That is, there is decrease in entropy. So, sign of is negative.
- In the reaction, , total 2 moles of substance is forming total 4 moles of substance. That is, there is increase in entropy so, sign of is positive.
The answer should be 3 moles of Carbon.
The answer to this question would be: decrease
If the process is releasing heat to the surrounding, that means it should be an exothermic process. In the exothermic process, the process enthalpy difference will be minus because some of the energy is released as heat. That means the enthalpy of the system will be decreased.
Answer:
the sun
water and
grassland?
sorry but whats the 3rd photo?
Explanation: