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Organotin compounds play a significant role in diverse industrial applications. They have been used as plastic stabilizers and as pesticides or fungicides.
One method used to prepare simple tetraalkylstannanes is the controlled direct reaction of liquid tin(IV) chloride with highly reactive trialkylaluminum compounds, such as liquid triethylaluminum (Al(C2H5)3).
3SnCl4 + 4Al(C2H5)3 3Sn(C2H5)4 + 4AlCl3

In one experiment, 0.160 L of SnCl4 (d = 2.226 g/mL) was treated with 0.349 L of triethylaluminum (Al(C2H5)3); d = 0.835 g/mL).
What is the theoretical yield in this experiment (mass of tetraethylstannane, Sn(C2H5)4)?

ANS:

If 0.175 L of tetraethylstannane (d = 1.187 g/mL) were actually isolated in this experiment, what was the percent yield?

ANS:

2007-09-28 15:27:23 · 1 answers · asked by Discover.... 1 in Science & Mathematics Chemistry

1 answers

1. Using the density, convert all of the volumes given to grams.

2 Convert the grams of the products to moles. Using stochiometry (mole ratios) calculate the moles of product that should be produced.

3. Convert that to grams. That is the theoretical yield

4. Divide the actual yield by the theoretical yield and multiply by 100 to get the percent yield

2007-09-28 15:36:35 · answer #1 · answered by reb1240 7 · 0 0

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