Select the ion. HCl H2O H3O+1
2 answers:
Answer : The correct option is,
Explanation :
Ion : It is formed by the loss or gain of one or more electrons. It is an electrically charged atom or group of atoms.
Positive charged ion is formed by the loss of electrons and is known as cation and negative charged ion is formed by the gain of electrons and known as anion.
From the given options,
and
are the neutral molecules. while the
is a positive ion species that is cation because it has (+1) charge.
Hence, the correct option is,
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a. mass of iron = 69.92 g
b. percent yield = 93%
<h3>Further eplanation </h3>Percent yield is the compare of the amount of product obtained from a reaction with the amount you calculated
General formula:
Percent yield = (Actual yield / theoretical yield )x 100%
An actual yield is the amount of product actually produced by the reaction. A theoretical yield is the amount of product that you calculate from the reaction equation according to the product and reactant coefficients
a.
Reaction
Fe₂O₃+3CO⇒2Fe+3CO₂
MW Fe₂O₃ : 159.69 g/mol
mol Fe₂O₃
mol Fe₂O₃ : mol Fe = 1 : 2
mol Fe :
mass of Fe(Ar=55.845 g/mol) :
b.
actual yield = 65 g
theoretical yield = 69.92 g
percent yield :