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Answer:
The Relative Size of Atoms and Their Ions
In fact, the negative ion can be more than twice as large as the neutral atom. The only difference between an atom and its ions is the number of electrons that surround the nucleus. Example: A neutral chlorine atom contains 17 electrons, while a Cl- ion contains 18 electrons.
Answer:
Well in one glucose they are 6.022*1023 individual glucose molecule.
- Iron is in limited amount, limiting reagent
- The theoretical yield of iron(III) oxide formed is 27.1 grams.
Given:
The reaction between iron and dioxygen at high temperatures to form iron(III) oxide.
To find:
- The limiting reagent
- The theoretical yield of iron(III) oxide formed when Suppose 19.1 g
of iron is reacted with 17.9 g of oxygen.
Solution:
- The mass of iron = 19.1 g
- The moles of iron
- The mass of dioxygen = 19.1 g
- The moles of dioxygen
According to reaction, 4 moles of iron reacts with 3 moles of dioxygen then 0.342 moles of iron will react with:
0.2465 moles of dioxygen will react with 0.342 moles of iron which means that:
- Iron is in limited amount, limiting reagent
- dioxygen is in an excessive amount, excessive reagent.
- The amount of iron(III) oxide formed will depend upon moles of iron.
According to reaction, 4 moles of iron gives 2 moles of iron (III) oxide, then 0.342 moles of iron will give:
The theoretical yield of 0.171 moles of iron(III) oxide:
The theoretical yield of iron(III) oxide formed is 27.1 grams.
Learn more about limiting and excessive reagent here:
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