Problemas
P_(4)+6Cl_(2)arrow 4PCl_(3) reaction of 75.0g P_(4) with excess chlorine gas produces 110g PCl_(3) In lab. Find the theoretical yield and calc percent yield for the reaction. 78% 64% 27% 33%
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Cesar
professionell · Tutor durante 6 años
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Respuesta
To find the theoretical yield and percent yield for the reaction, we need to follow these steps:1. Calculate the molar mass of
and
.2. Convert the given mass of
to moles.3. Use the stoichiometry of the balanced equation to find the moles of
produced.4. Convert the moles of
to grams to find the theoretical yield.5. Calculate the percent yield using the given actual yield.Step 1: Calculate the molar mass of
and
.Molar mass of
= 4 * 30.97 g/mol = 123.88 g/molMolar mass of
= 30.97 g/mol (P) + 3 * 35.45 g/mol (Cl) = 137.32 g/molStep 2: Convert the given mass of
to moles.Moles of
= 75.0 g / 123.88 g/mol = 0.605 molStep 3: Use the stoichiometry of the balanced equation to find the moles of
produced.According to the balanced equation, 1 mole of
produces 4 moles of
.Moles of
produced = 0.605 mol
* 4 = 2.42 mol
Step 4: Convert the moles of
to grams to find the theoretical yield.Theoretical yield of
= 2.42 mol * 137.32 g/mol = 332.5 gStep 5: Calculate the percent yield using the given actual yield.Percent yield = (Actual yield / Theoretical yield) * 100Percent yield = (110 g / 332.5 g) * 100 = 33.1%Therefore, the theoretical yield is 332.5 g and the percent yield is 33.1%.