The liquid that is placed in an evacuated sealed flask will reach in dynamic equilibrium if the amount of liquid inside the flask will stop converting into vapor. This process is to balanced the amount of substance of both phases inside the flask.
Answer:
2.7*10^23
Explanation:
first work out the moles
So do 36g / 80 (80 is bromine's relative Atomic Mass number)
You have 0.45 M
Then, do 0.45 * 6.02*10^23
You get 2.7*10^23, which is your answer
b. Uranium-235.
c. Cobalt-69.
d. Carbon-12.
2. The solid phase is relatively soluble.
3. The chemical reaction proceeds readily to the right.
4. The chemical reaction proceeds readily to the left.
Values of Ksp greater than 1.0 infer that the solid phase is relatively soluble. The answer is number 2. If Ksp is less than 1 then the solid phase is relatively insoluble.
To find the number of atoms in 0.450 grams of P2O5, you need to calculate the number of moles of P2O5 and then use Avogadro's number to convert it to the number of atoms.
To determine the number of atoms in 0.450 grams of P2O5, we need to use the molar mass of P2O5. The molar mass of P2O5 is 141.94 g/mol. Using this information, we can calculate the number of moles of P2O5 in 0.450 grams by dividing the mass by the molar mass:
Moles of P2O5 = mass / molar mass = 0.450 g / 141.94 g/mol = 0.00317 mol
Next, we can use Avogadro's number to convert the moles of P2O5 into the number of atoms:
Number of atoms = moles x Avogadro's number = 0.00317 mol x 6.022 x 1023 atoms/mol = 1.91 x 1021 atoms
#SPJ2