All categories

2 years ago

How many grams of iron (Fe) would be needed to generate 5.25 g of hydrogen gas (H2)?

Chemistry

1 answer:

Free_Kalibri [48]2 years ago

8 0

Considering the given reaction, 109 g of Fe are needed to generate 5.25 g of H₂.

<h3>What is stoichiometry?</h3>

Stoichiometry refers to the relationship between the quantities of reactants and products before, during, and following chemical reactions.

Step 1: Write the balanced equation.

3 Fe + 4 H₂O ⇒ 4 H₂ + Fe₃O₄

Step 2: Calculate the mass of Fe needed to produce 5.25 g of H₂.

We will consider the following relationships.

The molar mass of Fe is 55.85 g/mol.
The molar ratio of Fe to H₂ is 3:4.
The molar mass of H₂ is 2.02 g/mol.

$5.25gH_2 \times \frac{1molH_2}{2.02gH_2} \times\frac{3molFe}{4molH_2} \times\frac{55.85gFe}{1molFe} = 109gFe$

Considering the given reaction, 109 g of Fe are needed to generate 5.25 g of H₂.

Learn more about stoichiometry here: brainly.com/question/16060223

You might be interested in

How much energy is involved to cool 16.2 g of steam at 115.0°C to -2.00°C?

love history [14]

Explanation:

think its specific heat of water = 4.18 J/g°Ci

6 0

3 years ago

Who is responsible for the impacts of overfishing?

GarryVolchara [31]

Answer:

Japan, China, the U.S., Indonesia, Chinese Taipei and South Korea have been named by Pew Charitable Trusts on a “shame list” of countries responsible for overfishing tuna in the Pacific. According to Pew, the “Pacific 6” are responsible for 80 percent — 111,482 metric tons in 2011 — of the annual catch of bigeye tuna.

Hope it will help you

7 0

3 years ago

HELP <br> is you increase the amount of water used to dissolve a pill, would something change?

skad [1K]

Answer:

The answer is

Explanation:

No,it is not possible.

Hope this helps....

Have a nice day!!!!

4 0

3 years ago

Calculate δs∘rxn for the reaction2no(g) o2(g)→2no2(g)express your answer to one decimal place and include the appropriate units

Anna35 [415]

The δs∘rxn for the reaction $2NO(g) + O_{2}$ → $2NO_{2} (g)$ will be -146 J/K.

Entropy would be a measurable physical characteristic and a scientific notion that is frequently connected to a condition of disorder, unpredictability, or uncertainty.

Entropy would be a measurement of the system's unpredictability or disorder. The entropy increases as randomness do. It has broad properties as well as a state function. It has the unit $JK^{-1} mol^{-1}$ .

Entropy of the reaction can be calculated by the reaction.

Δ $S^{0} rxn$ = 2 mol × $S^{0} (NO_{2} (g) - 2 mol$ × $S^{0} NO (g)$ - 1 mol × $S^{0} (O_{2} )$

Δ $S^{0} rxn$ = 2 mol × 240 J/mol.K - 2 mol × 210 J/mol.K-1 mol ×205.2 J/mol.K

Δ $S^{0} rxn$ = -146.8 J/K

Therefore, the δs∘rxn for the reaction $2NO(g) + O_{2}$ → $2NO_{2} (g)$ will be -146 J/K.

To know more about reaction

brainly.com/question/20305735

#SPJ4

4 0

1 year ago

How do i calculate the concentration of a certain solution

Nuetrik [128]

Answer:

Divide the mass of the solute by the total volume of the solution. Write out the equation C = m/V, where m is the mass of the solute and V is the total volume of the solution. Plug in the values you found for the mass and volume, and divide them to find the concentration of your solution.

3 0

3 years ago