The reaction of 68.2 gram of O2 with excess of C4H8O produced 27.9 grams of H2O. What is the percent yield if 25.8 g of H2O was actually produced in the lab?

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Explanation:

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Explanation:

64.0g O2 1mol O2 2mol H2O 18.02g H2O

32.00 g O2 1mol O2 1mol H2O

= 72.08 g H2O = 72.1 g H2O

"among the transition metal elements, manganese and zinc have a slight lowering of electronegativities. the reason behind this is that the nuclear charges of these elements are slightly weaker than the other transition metal elements due to the way their valence electrons are filled up. both manganese and zinc have their valence electrons filled up to the 4th shell with 1 pair of electrons (4s2) completely occupying it. although the electrons in the 3rd shell (3d) are yet to be paired since the outer most shell is filled up, the ability of the nucleus to attract electrons is lessened. hence,   the electronegativity (or the ability to attract electrons) is lessened."

answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error