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
mihalych1998 [28]
3 years ago
11

LIMITING REACTANT!! Please help I’m very confused.

Chemistry
1 answer:
alexira [117]3 years ago
8 0

Answer:

We'll have 1 mol Al2O3 and 3 moles H2

Explanation:

Step 1: data given

Numer of moles of aluminium = 2 moles

Number of moles of H2O = 6 moles

Step 2: The balanced equation

2Al + 3H2O → Al2O3 + 3H2

Step 3: Calculate the limiting reactant

For 2 moles Al we need 3 moles H2O to produce 1 mol Al2O3 and 3 moles H2

Aluminium is the limiting reactant. It will completely be consumed (2 moles).

H2O is in excess. There will react 3/2 * 2 = 3 moles

There will remain 6 - 3 = 3 moles

Step 4: Calculate moles products

For 2 moles Al we need 3 moles H2O to produce 1 mol Al2O3 and 3 moles H2

For 2 moles Al we'll have 2/1 = 1 mol Al2O3

For 2 moles Al We'll have 3/2 * 2 = 3 moles H2

We'll have 1 mol Al2O3 and 3 moles H2

You might be interested in
Thermal conductors and insalators
bija089 [108]

Answer:

are both thermal?

Explanation:

6 0
2 years ago
the particles that make up a rock are constantly in motion. However, a rock does not visibly vibrate. why do you think this is?
dybincka [34]
The particles are always in motion but not much and the particles are moving slower because said rock is a solid but if said rock was a gas the particles would move much faster and farther this is due to the gaining and loss of energy (i hope that makes sense)
7 0
3 years ago
Which profile best describes the reaction C(s) + 2H2(g) → CH4(g),<br> AH = -74.9 kJ?
katrin [286]

Answer:

Option B. A

Explanation:

From the question given above, the following data were obtained:

C(s) + 2H₂ (g) —> CH₄ (g). ΔH = –74.9 kJ

From the reaction above, we can see that the enthalpy change (ΔH) is negative (i.e –74.9 KJ) which implies that the heat content of the reactants is greater than the heat content of the products. Thus, the reaction is exothermic reaction.

For an exothermic reaction, the energy profile diagram is drawn in such a way that the heat content of reactants is higher than the heat content of products because the enthalpy change

(ΔH) is always negative.

Thus, diagram A (i.e option B) gives the correct answer to the question.

8 0
2 years ago
Read 2 more answers
Does anyone know why electron affinity increases as going upward in the periodic table ​
kobusy [5.1K]

Answer:

Electron affinity increases upward for the groups and from left to right across periods of a periodic table because the electrons added to energy levels become closer to the nucleus, thus a stronger attraction between the nucleus and its electrons.

6 0
3 years ago
350.0-mL of 0.50 M hydrogen sulfate solution is reacted with 15.0 grams of sodium hydroxide. What volume of water will be produc
Evgesh-ka [11]

The volume of water that will be produced from the reaction will be 6.3 mL

<h3>Stoichiometric calculation</h3>

From the equation of the reaction:

H_2SO_4 + 2NaOH --- > Na_2SO_4 + 2H_2O

The mole ratio of hydrogen sulfate to sodium hydroxide is 1:2.

Mole of hydrogen sulfate = 0.50 x 350/1000 = 0.175 moles

Mole of 15 grams sodium hydroxide = 15/40 = 0.375 moles

Thus, hydrogen sulfide is the limiting reagent.

Mole ratio of hydrogen sulfide to water = 1:2.

Equivalent mole of water = 0.175 x 2 = 0.35 moles

Mass of 0.35 moles of water = 0.35 x 18 = 6.3 grams.

1 gram of water = 1 ml.

Thus, 6.3 grams of water will be equivalent to 6.3 mL

More on stoichiometric calculation can be found here: brainly.com/question/27287858

#SPJ1

6 0
2 years ago
Other questions:
  • Which of the following statements describes a basketball under high pressure (fully inflated) compared to a basketball under low
    7·1 answer
  • What important result did Becquerel observe when he placed the uranium salt crystals and unexposed photographic film in a drawer
    5·2 answers
  • What is the ph of a buffer prepared by adding 0.809 mol of the weak acid ha to 0.608 mol of naa in 2.00 l of solution? The disso
    8·1 answer
  • The final electron acceptor of the electron transport chain that functions in aerobic oxidative phosphorylation is The final ele
    5·1 answer
  • Sabendo que A Densidade do Metal De Chumbo e 11,3/cm3
    9·1 answer
  • One of the main components of hard water is CaCO3. When hard water evaporates, some of the CaCO3 is left behind as a white miner
    7·1 answer
  • Charles is given two electrical conductors – aluminium and graphite. Help him to select one for making an electric wire. Justify
    5·1 answer
  • How many moles are in 2.5L of 1.75 M Na2CO3
    12·1 answer
  • A balloon containing 0.0400 mol of a gas with a volume of 500 mL was expanded to 1.00 L.
    14·2 answers
  • How is hydrogen an example of an element?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!