The percent yield for this reaction is 91%.
<u>Explanation</u>:
Ba(NO3)2 + Na2SO4 — > BaSO4 + 2NaNO3
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Assume that 0.45 mol of Ba(NO3)2 reacts with excess Na2SO4 to create 0.41 mol of BaSO4.
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Convert to grams of BaSO4 utilizing its molar mass (233.38 g/mol), which will be giving the actual yield.
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Actual Yield = 0.41 mol BaSO4 x (233.38 g BaSO4/1 mol BaSO4)
= 96 g BaSO4
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Beginning with 0.45 mol of Ba(NO3)2, compute the theoretical yield of BaSO4. Mole proportion of Ba(NO3)2 to BaSO4 is 1:1.
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0.45 mol Ba(NO3)2 x (1 mol BaSO4/1 mol Ba(NO3)2) x (233.38 g BaSO4/1 mol BaSO4) = 105 g BaSO4
% Yield = (Actual Yield/Theoretical Yield) x 100%
= (96/105) x 100%
= 91%.
Answer: The concentartion of solution will be 0.224 M
Explanation:
Molarity : It is defined as the number of moles of solute present per liter of the solution.
Formula used :
where,
n= moles of solute =
= volume of solution in ml = 275 ml
Now put all the given values in the formula of molarity, we get
Therefore, the concentration of solution will be 0.224 M
Answer:
A(g) + B(g) → 3C(g).
Explanation:
As the no. of gaseous molecules increases in the product side than the reactants, disordering occurs and ΔSrxn be more positive.
as in: A(g) + B(g) → 3C(g).
the no. of gaseous molecules in the reactants side (2) and be (3) in the products side, disorder increases.
While, as the no. of gaseous molecules decreases in the product side than the reactants, ordering occurs and ΔSrxn be more negative.
as in:
2A(g) + B(g) → C(g)
,
the no. of gaseous molecules in the reactants side (3) and be (1) in the products side, ordering increases.
2A(g) + 3B(g) → 4C(g)
,
the no. of gaseous molecules in the reactants side (5) and be (4) in the products side, ordering increases.
2A(g) + B(s) → 3C(g).
the no. of gaseous molecules in the reactants side (3) and be (3) in the products side, ordering is the same.
<span>Magnetic declination is the angle between magnetic north (the direction the north end of a compass needle points) and true north. The declination is positive when the magnetic north is east of true north. The term magnetic variation is a synonym, and is more often used in navigation. Isogonic lines are where the declination has the same value</span>