Chemistry, 25.06.2019 08:00 parisw8

How many molecules of water are formed? identify the limiting reagent 1.h 2.o 3. not enough information is provided to determine the limiting reagent identify the excess reagent 1.h 2.o 3. not enough information is provided to determine the limiting reagent

How many molecules of water are formed? identify the limiting reagent 1.h 2.o 3. not enough informa

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Answer from: pthalia

3 moles of water are formed. The limiting reagent is Oxygen atom and the excess reagent is Hydrogen atom.

Explanation:

From the image provided, there are 8 moles of Hydrogen atom and 3 moles of Oxygen atom.

The equation for the formation of water is given by:

$2H+O\rightarrow H_2O$

By Stoichiometry,

1 mole of Oxygen atom reacts with 2 moles of Hydrogen atom.

So, 3 moles of Oxygen atom will react with = $\frac{2}{1}\times 3=6moles$ of Hydrogen atom.

The required amount of Hydrogen atom is less than the given amount of Hydrogen atom, hence, it is considered as an excess reagent.

Therefore, Oxygen atom is the limiting reagent because it limits the formation of product.

By Stoichiometry of the reaction:

1 moles of oxygen atom produces 1 mole of water molecule.

So, 3 moles of oxygen atom will produce = $\frac{1}{1}\times 3=3moles$ of water molecule.

Thus, 3 moles of water are formed. The limiting reagent is Oxygen atom and the excess reagent is Hydrogen atom.

Answer from: Quest

2fe + 3h2so4 -> fe2(so4)3 + 3h2

it is necessary to balance equations in order to get the proper amount of reactants as well as products in order not to make a miscalculation.

you cannot change the subscripts as that would change the substance itself. for instance, diatomic elements such as h2 only have the subscript two when a gas. another example would be so4, if you were to change the subscript, the element would no longer be sulfate.

we change the coefficients instead as that only changes the number of molecules rather than the substance itself.

hope this !

Answer from: Quest

each column of the table is called a group. elements in a group share similar properties. groups are read from top to bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o. 2. 3. 4. 5. 6. 7. 8. 9. 2. beryllium. 9.012. 4. sodium. 22.990. 11. 3. magnesium. 24.305. 12. potassium. 39.098. 19. 4. calcium. 40.078. 20. i guess i

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How many molecules of water are formed? identify the limiting reagent 1.h 2.o 3. not enough informa...

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