What mass of sulfur is contained in a $250 \cdot g$ $250*g$ mass of $98 %$ $98%$ $sulfuric acid$ $"sulfuric acid"$ ?

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What mass of sulfur is contained in a $250 \cdot g$ $250*g$ mass of $98 %$ $98%$ $sulfuric acid$ $"sulfuric acid"$ ?

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Answer 1 · 2017-03-07T09:10:59

Approx. $82 \cdot g$ $82*g$ ............

Explanation:

$Moles of sulfuric acid$ $"Moles of sulfuric acid"$ $=$ $=$ $\frac{Mass}{Molar mass}$ $"Mass"/"Molar mass"$

$= \frac{250 \cdot g}{98.08 \cdot g \cdot m o l^{- 1}} = 2.55 \cdot m o l$ $=(250*g)/(98.08*g*mol^-1)=2.55*mol$ .

And thus there are $2.55 \cdot m o l \times 32.06 \cdot g \cdot m o l^{- 1}$ $2.55*molxx32.06*g*mol^-1$ of sulfur, approx. $82 \cdot g$ $82*g$ sulfur.

Sulfuric acid can be obtained at 98% concentrations, but this is still an aqueous solution, with $[H_{2} S O_{4}] ≅ 18 \cdot m o l \cdot L^{- 1}$ $[H_2SO_4]~=18*mol*L^-1$ .

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What mass of sulfur is contained in a $250 \cdot g$ $250*g$ mass of $98 %$ $98%$ $sulfuric acid$ $"sulfuric acid"$ ?

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What mass of sulfur is contained in a 250⋅g250*g mass of 98%98% sulfuric acid"sulfuric acid"?

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What mass of sulfur is contained in a $250 \cdot g$ $250*g$ mass of $98 %$ $98%$ $sulfuric acid$ $"sulfuric acid"$ ?