Answer:
The answer to the question is
The percentage yield when 500. g of SO₃ react with excess water to produce 575 g of H₂SO₄ is 81.63 %
Explanation:
The known variables are
Mass of SO₃ = 500 g
Mass of H₂SO₄ = 575 g
Molar mass of SO₃ = 80.0632 g/mol
Molar mass of H₂SO₄ = 98.079 g/mol
The reaction equation is
SO₃ +H₂O → H₂SO₄
One mole of SO₃ react with one mole of H₂O to produce one mole of H₂SO₄
Therefore number of moles of SO₃ in 500 g sample of SO₃ = (500 g)/(80.0632 g/mol) = 6.25 moles
Also number of moles of H₂SO₄ in 575 g sample of H₂SO₄ = (575 g)/(98.079 g/mol) = 5.86 moles
Which shows that the reaction is in the forward direction, production of H₂SO₄
Therefore 6.25 moles of SO₃ can produce 6.25 moles of H₂SO₄ and
The mass of 6.25 moles of H₂SO₄ = 6.25 moles × 98.079 g/mol = 612.51 g
Theoretical Yield = 612.51 g
Percentage Yield = 
= 
Percentage Yield = 81.63 %
The more focused the rays are, the more energy an area receives, and the warmer it is. The lowest latitudes get the most energy from the Sun. The highest latitudes get the least. The difference in solar energy received at different latitudes drives atmospheric circulation.
A. helium, neon and argon, because they are in the same group or column
Answer: The statement the 
shell holds a minimum number of 
electrons is true.
Explanation:
The alphabet 'n' denotes the principal quantum number whose value can be equal to 1, 2, 3, and so on but can never be zero.
Basically, 'n' is the number of shell of an atom and total number of orbitals present in a shell is 
.
Each orbital can hold up to a maximum of wo electrons. Hence, the shell can hold a minimum number of electrons.
Thus, we ca conclude that the statement the shell holds a minimum number of electrons is true.
Equilibrium equation is
<span>Ag2CO3(s) <---> 2 Ag+(aq) + CO32-(aq) </span>
<span>From the reaction equation above, the formula for Ksp: </span>
<span>Ksp = [Ag+]^2 [CO32-] = 8.1 x 10^-12 </span>
<span>You know [CO32-], so you can solve for [Ag+] as: </span>
<span>(8.1 x 10^-12) = [Ag+]^2 (0.025) </span>
<span>[Ag+]^2 = 3.24 x 10^-10 </span>
<span>[Ag+] = 1.8 x 10^-5 M </span>
