How many grams of Fe2O3 will be produced from 37.5 grams of iron
Answers
Grams are the unit of the mass that is used to calculate the moles. From 37.5 gms of iron, 53.6 gms of ferric oxide are produced.
What is mass?
Mass is the measurement of the moles of the substance and the molar mass.
Moles of iron from the mass is calculated as:
Moles of iron = 37.5 gms ÷ 55.84 = 0.671 moles
The balanced chemical reaction:
4Fe + 3O2 → 2Fe2O3
From the above it is deduced that 4 moles of iron produce 2 moles of ferric oxide so, 0.671 moles of iron will produce,
(0.671 × 2) ÷ 4 = 0.3375 moles
Mass of ferric oxide, from moles, is calculated as:
Mass = 0.33 moles × 159.687
= 52.696 gms
Therefore, 53.6 gms of ferric oxide will be produced from 37.5 gms of iron.
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Final answer:
The mass of Fe2O3 that can be produced from 37.5g of iron (Fe) is approximately 53.65g. This is achieved by converting mass of iron to moles, using stoichiometry from the balanced chemical equation to convert moles of iron to moles of Fe2O3, and then converting moles of Fe2O3 back to grams.
Explanation:
First, we need to figure out the molar mass of iron (Fe) which is approximately 55.85 g/mol and the molar mass of iron(III) oxide (Fe2O3) which is approximately 159.69 g/mol. We find this using the atomic masses of Iron (Fe) and Oxygen (O) from the periodic table and add them appropriately.
Next, to find the number of moles of iron we use the provided mass of Fe and its molar mass. We calculate this as (37.5 g Fe / 55.85 g/mol Fe) = 0.671 moles of Fe. Now, the balanced chemical equation for the formation of iron(III) oxide is: 4Fe + 3O2 --> 2Fe2O3. From this balanced equation, we know that it takes 4 moles of iron (Fe) to produce 2 moles of Fe2O3. Therefore, the moles of Fe2O3 formed from 0.671 moles of Fe would be (0.671 moles Fe * 2 moles Fe2O3/4 moles Fe) = 0.336 moles of Fe2O3.
Finally, to find the mass of Fe2O3 produced, we multiply the moles of Fe2O3 by its molar mass. We calculate this as (0.336 moles Fe2O3 * 159.69 g/mol Fe2O3) = 53.657 g of Fe2O3.
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109 for brainly just did it 5/5 correct (Three significant figures)
3.) Control:_______________________________________________________
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Note that mitosis is also valuable for repairing damaged tissue, replacing worn out cells, growing, and developing, not just asexual reproduction.
Asexual reproduction does not occur by meiosis.
Final answer:
Mitosis is a form of asexual reproduction because it allows a single cell to divide and produce two genetically identical daughter cells. There is no exchange of genetic material, making the offspring an exact copy of the parent.
Explanation:
Mitosis is considered a form of asexual reproduction because it enables a single cell to divide and produce two daughter cells that are genetically identical to the parent cell. In asexual reproduction, there is no exchange of genetic material, thus ensuring that the offspring is an exact copy of the parent. This is the main reason why mitosis, with its mechanism of copying and separating chromosomes, is classified as asexual reproduction.
For instance, a bacterium reproduces by mitosis; first, it duplicates its DNA and then divides into two cells. Each of these two cells has exactly the same DNA as the parent bacterium.
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The answer is D) Heat
When energy changes from one form to another, some energy is always changed to heat.
Please mark a brailiest ^-^
When energy changes from one form to another, some energy is always changed to Heat.
Which means the answer is D. (Heat)
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