What is the maximum mass of #S_8# that can be produced by combining 83.0 g of each reactant in the reaction #8SO_2 + 16H_2S -> 3S_8 + 16H_2O#??
The idea here is that in order to identify whether or not you are working with a limiting reagent, you need to use the mole ratio that exists between the two reactants.
Examine the balanced chemical equation for this reaction first.
Regarding sulfur dioxide, you'll need
Regarding hydrogen sulfide, you'll need
So, how can you determine if the reagent you're working with is limiting?
Using the mole ratios that exist between the two reactants, choose one reactant (sulfur dioxide, for example).
More precisely, the response will devour
The remainder of
will be excessive and, obliquely, not participate in the response.
The number of sig figs you have for the samples of the two reactants, rounded to three, is what the answer will be.
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First, balance the equation: 8SO2 + 16H2S -> 3S8 + 16H2O
Calculate the molar masses of each reactant and product: Molar mass SO2 = 32.07 g/mol + 215.999 g/mol = 64.07 g/mol Molar mass H2S = 21.008 g/mol + 32.07 g/mol = 34.08 g/mol Molar mass S8 = 8*32.07 g/mol = 256.56 g/mol
Calculate the number of moles of each reactant: Number of moles SO2 = 83.0 g / 64.07 g/mol = 1.296 mol Number of moles H2S = 83.0 g / 34.08 g/mol = 2.434 mol
Using the stoichiometry of the reaction, determine the limiting reactant: From the balanced equation, 8 moles of SO2 react with 16 moles of H2S to produce 3 moles of S8. So, the ratio of moles of SO2 to H2S is 1:2.
Since there are fewer moles of SO2 (1.296 mol) compared to H2S (2.434 mol), SO2 is the limiting reactant.
Calculate the maximum mass of S8 produced using the moles of the limiting reactant: 3 moles of S8 * 256.56 g/mol = 769.68 g
Therefore, the maximum mass of S8 that can be produced is 769.68 grams.
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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.
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