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Alecsey [184]
3 years ago
14

Combining 0.380 mol Fe2O3 with excess carbon produced 13.7 g Fe

Chemistry
1 answer:
Alex_Xolod [135]3 years ago
8 0

Answer:

Percent yield = 32.9%

Explanation:

Given data:

Number of moles of Fe₂O₃ = 0.380 mol

Number of moles of Fe produced = 13.7 g

Theoretical yield = ?

Actual yield of iron in mol = ?

Percent yield = ?

Solution:

Chemical equation:

Fe₂O₃ + 3C   →   2Fe  + 3CO

Actual yield of iron in moles:

Number of  moles = mass/ molar mass

Number of moles = 13.7 g/ 55.8 g/mol

Number of moles = 0.25 mol

Theoretical yield:

                    Fe₂O₃          :           Fe

                      1                :              2

                    0.380         :          2×0.380 = 0.76

Theoretical yield = 0.76 mol

Percent yield:

Percent yield = actual yield / theoretical yield × 100

Percent yield = 0.25 mol /0.76 mol × 100

Percent yield = 32.9%

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8 0
3 years ago
The volume and amount of gas are constant in a tire. The initial pressure and temperature are 1.82 atm and 293 K. At what temper
vladimir1956 [14]

Answer:

When the pressure increases to 2.35 atm, the temperature will increase to 378 K

Explanation:

Step 1: Data given

The initial pressure = 1.82 atm

The initial temperature = 293 K

The pressure will be increased to 2.35 atm

Step 2: Calculate the new temperature

P1/T1 = P2/T2

⇒with P1 = the initial pressure = 1.82 atm

⇒with T1 = the initial temperature = 293 K

⇒with P2 = the increased pressure = 2.35 atm

⇒with T2 = the new temperature = TO BE DETERMINED

1.82atm / 293 K = 2.35 atm / T2

T2 = 2.35 atm / (1.82 atm/293 K)

T2 = 2.35 / 0.0062116

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4 0
3 years ago
The crystal structure of an ionic compound depends on the
Murljashka [212]

Answer:

The ion's sizes and their radius ratio.

Explanation:

Ionic compounds take the form of three dimentional arrays by alternating anions and cations in order to minimize the potential energy of the system by maximizing the attractive force between opposite charges.

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Assume that temperature and number of moles of gas are constant in this problem.
IrinaVladis [17]

Question:

a. a direct linear relationship

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c. a direct nonlinear relationship

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Answer:

The correct option is;

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Explanation:

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P·V = n·R·T

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V P    C

1 5         5

2 2.5      5

3 1.67     5

4 1.25     5

5 1          5

6 0.83    5

7 0.7      5

8 0.63    5

9 0.56    5

10 0.5      5

Where:

V = Volume

P = Pressure

C = Constant = 5

P = C/V

The graph is attached.

4 0
3 years ago
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