Atoms in a covalent bond are held together by what??

1 answer:

8 0

this is because nonmetals. the elements that form covalent bonds want to share the electrons to creat an ocet when this happens the positively charged nucleus has and attraction for the valence, or outer most, electrons of its own atoms as well as for the electrons in the atom that it is trying to share electrons with

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Ethyl acetate reacts with H2, in the presence of a catalyst to yield ethyl alcohol: C4H8O2 + 2H2--> 2C2H6O. A. How many grams

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The balanced chemical reaction is:

C4H8O2 + 2H2--> 2C2H6O

A. How many grams of ethyl alcohol are produced by reaction of 2.7 mol of ethyl acetate with H2? 2.7 mol C4H8O2 ( 2 mol C2H6O / 1 mol C4H8O2) (46.07 g / 1 mol) = 248.78 g ethyl alcohol

B. How many grams of ethyl alcohol are produced by reaction of 13.0g of ethyl acetate with H2?
13.0 g C4H8O2 ( 1 mol / 88.11 g) ( 2 mol C2H6O / 1 mol C4H8O2) (46.07 g / 1 mol) = 13.59 g ethyl alcohol

C. How many grams of H2 are needed to react with 13.0g of ethyl acetate?
13.0 g C4H8O2 ( 1 mol / 88.11 g) ( 2 mol H2 / 1 mol C4H8O2) (2.02 g / 1 mol) = 0.5961 g H2

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