1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kirill [66]
3 years ago
14

Over the years, the thermite reaction has been used for welding railroad rails, in incendiary bombs, and to ignite solid fuel ro

cket motors. The reaction is Fe2O3(s) + 2Al(s) → 2Fe(l) + Al2O3(s) Click here to see the reaction. What is the maximum mass of aluminum oxide that could be produced along with 18.65 g iron?
Chemistry
1 answer:
Diano4ka-milaya [45]3 years ago
3 0

Answer:

16.98 g

Explanation:

The balacend equation is

Fe2O3(s) + 2Al(s) → 2Fe(l) + Al2O3(s)

So, when 2 moles of iron (Fe) are produced, 1 mol of aluminum oxide is produced. The mass molar of the elements are:

Fe = 56 g/mol; O = 16 g/mol; Al = 27 g/mol

Then, the mass molar of Al2O3 is:

2x27 + 3x16 = 102 g/mol

The stoichiometry relation will be:

2 mol of Fe -------------------- 1 mol of Al2O3

2x56 g of Fe -------------------- 102 g of Al2O3

18.65 g of Fe -------------------- x g of Al2O3

By a direct simple three rule:

112x = 1902.3

x = 16.98 g

You might be interested in
Please select the word from the list that best fits the definition
Alexandra [31]
I believe it is either A. or C. my guess is A.
7 0
2 years ago
Determine the value of the equilibrium constant, Kgoal, for the reaction CO2(g)⇌C(s)+O2(g), Kgoal=? by making use of the followi
marta [7]

Answer : The value of K_{goal} for the final reaction is, 1.238\times 10^{-7}

Explanation :

The following equilibrium reactions are :

(1) 2CO_2(g)+2H_2O(l)\rightleftharpoons CH_3COOH(l)+2O_2 K_1=5.40\times 10^{-16}

(2) 2H_2(g)+O_2(g)\rightleftharpoons 2H_2O(l) K_2=1.06\times 10^{10}

(3) CH_3COOH(l)\rightleftharpoons 2C(s)+O_2(g) K_3=2.68\times 10^{-9}

The final equilibrium reaction is :

CO_2(g)\rightleftharpoons C(s)+O_2(g) K_{goal}=?

Now we have to calculate the value of K_{goal} for the final reaction.

First half the equation 1, 2 and 3 that means we are taking square root of equilibrium constant and then add all the equation 1, 2 and 3 that means we are multiplying all the equilibrium constant, we get the final equilibrium reaction and the expression of final equilibrium constant is:

K_{goal}=\sqrt{K_1\times K_2\times K_3}

Now put all the given values in this expression, we get :

K_{goal}=\sqrt{(5.40\times 10^{-16})\times (1.06\times 10^{10})\times (2.68\times 10^{-9})}

K_{goal}=1.238\times 10^{-7}

Therefore, the value of K_{goal} for the final reaction is, 1.238\times 10^{-7}

3 0
3 years ago
Data Table 3: Polystyrene Test Tube, 12x75mm
Lera25 [3.4K]

Answer:

Experiment 8 E Data Table 3 fl Data Table 4 fl Data Table 5 fl Data Table 6 Data Table 3: Polystyrene Test Tube, 12x75mm Volume of water at room temperature (V1 in mL) Volume of gas in polystyrene tube at boil (V2 in mL) Temperature of gas at boil inside polystyrene tube (°C) Volume of gas in polystyrenetube at room temperature (V3 in mL) Temperature of gas.

Explanation:

Hope this helps

Mark as Brainliest please

4 0
3 years ago
0.20 g of sodium hydroxide (NaOH) pellets are dissolved in water to make 4.5 L of solution. What is the pH of this solution?
amid [387]
Thats allllllll otttt but ill help

step by step
8 0
3 years ago
What if you love someone a lot but are to afraid to say it?
Serjik [45]

Answer:

Zodiac signs.

Explanation:

Cringe.

4 0
3 years ago
Read 2 more answers
Other questions:
  • Which of the following distinguishes an element from all other elements?
    9·1 answer
  • In a particular breed of cattle a black coat is dominant over a red coat if a cow with the red coat is crossed with the black ba
    11·1 answer
  • What's a metaloid, science
    11·1 answer
  • If 27.1 g of ar(g) occupies a volume of 4.21 l, what volume will 1.29 moles of ne(g) occupy at the same temperature and pressure
    10·2 answers
  • Which sample matter is a pure substance
    14·1 answer
  • The bond enthalpy in NO is 632 kJ/mol and that of each NO bond in NO2 is 469 kJ/mol. Explain the difference in bond enthalpies b
    9·1 answer
  • At a particular temperature, an equilibrium mixture the reaction below was found to contain 0.171 atm of I2, 0.166 atm of Cl2 an
    7·1 answer
  • 2Na + Cl2 → 2NaCl
    8·1 answer
  • What is the cost in dollars for the nails used to build a fence 80 meters long if it requires 30 nails per meter? There are 40 n
    9·1 answer
  • Which statement correctly describes a solution
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!