starting with 156 g li2o and 33.3 g h2o, decide which reactant is present in limiting quantities. given: li2o h2o→2lioh

Answers

Answer 1

it is the limiting reactant. Therefore, the amount of LiOH that can be produced is limited by the amount of Li2O available.

To determine which reactant is limiting, we need to compare the amount of product that can be produced from each reactant.

The balanced chemical equation tells us that 1 mole of Li2O reacts with 1 mole of H2O to produce 2 moles of LiOH.

From the given quantities, we can calculate the number of moles of each reactant:

moles of Li2O = 156 g / (29.88 g/mol) = 5.215 mol

moles of H2O = 33.3 g / (18.02 g/mol) = 1.849 mol

Now we can use the mole ratios from the balanced equation to determine how much LiOH can be produced from each reactant:

Li2O: 5.215 mol Li2O x (2 mol LiOH / 1 mol Li2O) = 10.43 mol LiOH

H2O: 1.849 mol H2O x (2 mol LiOH / 1 mol H2O) = 3.698 mol LiOH

Since Li2O can produce more LiOH than H2O, it is the limiting reactant. Therefore, the amount of LiOH that can be produced is limited by the amount of Li2O available.

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Answer 2

If we start with 156 g of [tex]Li_2O[/tex] and 33.3 g of [tex]H_2O[/tex], the limiting reactant is [tex]H_2O[/tex], and the maximum amount of LiOH that can be produced is 88.77 g.

To determine which reactant is present in limiting quantities, we need to compare the amount of each reactant with the stoichiometry of the balanced chemical equation. The balanced chemical equation for the reaction between [tex]Li_2O[/tex] and [tex]H_2O[/tex] is:

[tex]\mathrm{Li_2O + H_2O \rightarrow 2LiOH}[/tex]

According to this equation, 1 mole of [tex]Li_2O[/tex] reacts with 1 mole of [tex]H_2O[/tex] to produce 2 moles of LiOH. Therefore, we can calculate the moles of each reactant as follows:

moles of [tex]Li_2O[/tex] = 156 g / (molar mass of Li2O)

moles of [tex]H_2O[/tex]= 33.3 g / (molar mass of [tex]H_2O[/tex])

The molar mass of [tex]Li_2O[/tex] is 29.88 g/mol (6.94 g/mol for lithium + 16.00 g/mol for oxygen), and the molar mass of [tex]H_2O[/tex] is 18.02 g/mol (2.02 g/mol for hydrogen + 16.00 g/mol for oxygen). Plugging in the numbers, we get:

moles of [tex]Li_2O[/tex] = 156 g / 29.88 g/mol = 5.21 mol

moles of [tex]H_2O[/tex] = 33.3 g / 18.02 g/mol = 1.85 mol

Since the stoichiometry of the equation is 1:1 for [tex]Li_2O[/tex] and [tex]H_2O[/tex], whichever reactant has the smaller number of moles is the limiting reactant. In this case, we can see that [tex]H_2O[/tex] has fewer moles than [tex]Li_2O[/tex]. Therefore, [tex]H_2O[/tex] is the limiting reactant.

To find the amount of LiOH that can be produced, we need to use the number of moles of the limiting reactant ([tex]H_2O[/tex]) and the stoichiometry of the equation. Since 1 mole of [tex]H_2O[/tex] produces 2 moles of LiOH, we can calculate the moles of LiOH produced as follows:

moles of LiOH = 1.85 mol [tex]H_2O[/tex] × (2 mol LiOH / 1 mol [tex]H_2O[/tex]) = 3.70 mol LiOH

Finally, we can calculate the mass of LiOH produced using the moles of LiOH and its molar mass:

mass of LiOH = 3.70 mol LiOH × 23.95 g/mol = 88.77 g LiOH

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Related Questions

What will happen to the temperature
when KCI is added to water?

Answers

Answer:

As potassium chloride (KCl) dissolves in water, the ions are hydrated. ... Ion-dipole forces attract the positive (hydrogen) end of the polar water molecules to the negative chloride ions at the surface of the solid, and they attract the negative (oxygen) ends to the positive potassium ions.

In your own words, explain Earth's atmosphere.

Answers

The atmosphere is the layer of gases around the Earth. It is held in place by Earth's gravity. It’s made up of oxygen, nitrogen, Corbin dioxide, water vapor, etc. greenhouse gasses are trapped up in our Earths atmosphere resulting in pollution and a worse air quality index.

Answer:

yes

Explanation:

because the atmosphere is the shield of earth

Radiant heat is typically found

A.in empty space
B.I’m water
C.in mountains
D.in bricks

Answers

Answer:

A.in empty space

Explanation:

Radiant heat creates heath through both convection and radiation. Their purpose is to heat up an environment, aka empty space.

Why is sterilising the water rarely used in treating the sewage water?

Answers

Answer:

Sterilizing the water rarely used in treating the sewage water is described below in details.

Explanation:

Sterilization is the application of a chemical or physical system to eradicate all microorganisms, concluding comprehensive amounts of bacterial content. Heat treatment is the most relevant approach for the sterilization of waste-water that accommodates large levels of masses. well now sterilizing the water is un-usually practiced in managing the sewage water.

true or false: the more matter a star contains,the longer it is able to shine.

Pls help fast

Answers

True because the more matter the more power

Explanation:

true ..........................

The Statue of Liberty changing from Copper to Green is an example of...
Group of answer choices

A: Temperature Change

B: Gas Formation

C: Color Change

D: Precipitate

Answers

Answer:

answering this for points! Sorry! but its probably A OR C

Explanation:

balance Ca(NO3)2 + NaCl ---> NaNO3 + CaCl2

Answers

Answer:

Ca(NO3)2 + 2 NaCl = 2 NaNO3 + CaCl2

Explanation:

On the left you have an original balance of Ca - 1, N - 2, O - 6, Na - 1, and Cl - 2, and on the right you have a balance of Ca - 1, N - 1, O - 3, Na - 1, Cl - 2.

Ca - 1 Ca - 1

N - 2 N - 1

O - 6 O - 3

Na - 1 Na - 1

Cl - 1 Cl - 2

In order to balance these, you'll have to make both sides equal. To get the N on the right to be equal to the N on the left, you'll have to multiply NaNO3 by 2, thus making it 2NaNO3. By doing this, you will offset the balance of both Na and O.

Ca - 1 Ca - 1

N - 2 N - 2

O - 6 O - 6

Na - 1 Na - 2

Cl - 1 Cl - 2

To balance the rest of the equation, you'll have to multiply both Na and Cl by 2. This will change NaCl to 2NaCl, making the balance look like this:

Ca - 1 Ca - 1

N - 2 N - 2

O - 6 O - 6

Na - 2 Na - 2

Cl - 2 Cl - 2

You will now be left with your final equation Ca(NO3)2 + 2 NaCl = 2 NaNO3 + CaCl2.

If sperm and egg cells have half of the number of chromosomes found in other body cells, how do gametes form?

Answers

Meiosis is a process of cell division that reduces the chromosome number by half and produces sex cells, or gametes.

How many mL of a 1.00 M HCl solution would need to be added to 100 mL of 0.263 M ammonia to produce a buffer with a pH of 10.00. The pKa of ammonia is 9.25.

Answers

Answer:

3.97mL of 1.00M HCl must be added

Explanation:

The buffer of ammonia and ammonium ion follows the equation:

pH = pKa + log [NH₃] / [NH₄⁺] (1)

Where pH is the pH we want to obtain: 10.00

pKa is the pKa of the buffer: 9.25

[NH₃] could be taken as moles of ammonia

And NH₄⁺ moles of ammonium ion

When NH₃ reacts with HCl:

NH₃ + HCl → NH₄⁺ + Cl⁻

NH₄⁺ is produced. That means moles of ammonia are Initial moles of ammonia - Moles of HCl added

Moles of HCl added = Moles of ammonium ion

The total moles of the buffer are:

0.100L * (0.263mol / L) = 0.0263moles = [NH₄⁺] + [NH₃] (2)

Rewriting (1):

10.00 = 9.25 + log [NH₃] / [NH₄⁺]

0.75 = log [NH₃] / [NH₄⁺]

Replacing (2) in (1):

0.75 = log 0.0263 - [NH₄⁺] / [NH₄⁺]

5.6234 = 0.0263 - [NH₄⁺] / [NH₄⁺]

5.6234[NH₄⁺] = 0.0263 - [NH₄⁺]

6.6234[NH₄⁺] = 0.0263

[NH₄⁺] = 0.00397 moles = Moles HCl

To obtain these moles we must add:

0.00397 moles HCl * (1L / mol) = 0.00397L =

3.97mL of 1.00M HCl must be added

Which statement best compares the melting points of magnesium and sodium?

a
Magnesium has a higher melting point because it contributes one additional electron per atom than sodium in the electron sea.
b
Sodium has a higher melting point because it contributes one fewer electron per atom than magnesium in the electron sea.
c
Sodium has a higher melting point because it contributes two fewer electrons per atom than magnesium in the electron sea.
d
Magnesium has a higher melting point because it contributes two additional electrons per atom than sodium in the electron sea.

Answers

A because according to electron sea theory magnesium shares two valence electrons in electron sea while sodium shares one suggesting that magnesium has stronger metallic bond than sodium so breaking metallic bond in magnesium will require more energy as compared to breaking metallic bond in sodium

The melting point of magnesium is higher than the melting point of sodium because it contributes two additional electrons per atom than sodium in the electron sea. Thus option d is correct.

What is melting point?

Melting point of a substance is the temperature at which it converts from solid state to liquid state where, the two phases are in equilibrium. Melting point is affected by the bond type, molecular weight, temperature and pressure.

Melting point of elements increases along a period because the atomic size is decreasing along the period and molecular weight is increasing. Thus, the nuclear attractive pull increases resulting in higher energy needed to break the attractive force.

Magnesium is 12th element and sodium is 11th element. Thus magnesium is smaller than sodium and have one more electron than sodium. Thus magnesium have high molecular weight and high nuclear attraction leads to its higher melting point.

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Thomson concluded that .......
A- electrons must be parts of the atoms of all elements
B- Electrons are not parts of the atoms of all elements
C-None from the previous

Answers

Answer:

A. electrons must be parts of the atoms of all elements

What is the random movement and mixing of particles?
9 letters in the world the second one is “i” and the 6th “s”

Answers

Answer:

diffusion

Explanation:

Diffusion can be defined as the net movement of particles from a high concentration to a low concentration. This sounds like the most plausible word in this case.

The Sun appears to move across the sky each day. What causes this?

A.the spinning of Earth on its axis

B. the path of the Sun around Earth

C. the production of nuclear energy by the Sun

D. the tilt of Earth on its axis

Answers

Answer:

Explanation:

as the earth rotate around the sun it appears to be moving across the sky

Answer:

The answer is option A

Explanation:

From Earth, the Sun looks like it moves across the sky in the daytime and appears to disappear at night. This is because the Earth is spinning towards the east. The Earth spins about its axis, an imaginary line that runs through the middle of the Earth between the North and South poles.

Please mark me brainliest

What is the temperature at 11:59 pm?

Answers

It depends on where u live mines is 28 degree

For me it was 52 degrees.

How many moles of xenon gas are necessary to exert a 0.64atm pressure in an 8.5L container at 300.0K?

Answers

0.026 moles is the right answer.

We have that for the Question "How many moles of xenon gas are necessary to exert a 0.64atm pressure in an 8.5L container at 300.0K?" it can be said that moles of xenon gas is

n=0.22moles

From the question we are told

How many moles of xenon gas are necessary to exert a 0.64atm pressure in an 8.5L container at 300.0K?

Generally the equation for the ideal gas is mathematically given as

[tex]n=\frac{Pv}{RT}\\\\n=\frac{0.64*8.5}{0.08206*300}[/tex]

n=0.22moles

Therefore

How many moles of xenon gas are necessary to exert a 0.64atm pressure in an 8.5L container at 300.0K is

n=0.22moles

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Periodic law states that elements show a

A. repetition of their physical and chemical properties when arranged according to increased atomic number

B. repetition of their physical and chemical properties when arranged according to increased atomic mass

C. repetition of their physical and chemical properties when arranged according to increased atomic size

D. repetition of their physical and chemical properties when arranged according to increased atomic radius

Answers

Answer:

A. repetition of their physical and chemical properties when arranged according to increased atomic number

Explanation:

There are various kind of elements that are present in periodic table. Some elements are harmful, some are radioactive, some are noble gases. Therefore, option A is correct option.

What is periodic table?

Periodic table is a table in which we find elements with properties like metals, non metals, metalloids and radioactive element arranges in increasing atomic number.

Periodic table help a scientist to know what are the different types of elements are present in periodic table so that they can discover the new elements that are not being discovered yet.

Periodic law states that elements show a repetition of their physical and chemical properties when arranged according to increased atomic number.

Therefore, the correct option is option A out of given options.

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Look at the image below:
Mid ocean ridge
Sea towe
Marie Sedie
Osta 7m
WORM
PC
hohe materieur
Tron
Orope
thenosphere
perduta
What type of plate boundary is shown here?
convergent
divergent
transform

Answers

Answer:

Divergent

20 words

Answer:

divergent...........................

A mining crew extracted two different types of minerals from underground. Then, they transferred the same amount of energy into both minerals. Why did mineral A change while mineral B stayed the same? Explain what happened to the molecules of both minerals

Answers

Explanation:

A mining crew extracted two different types of minerals from underground. Then, they transferred the same amount of energy into both minerals. Mineral A changed and mineral B stayed the same phase because mineral B has a stronger molecular attraction than mineral A.

In the reaction 2CO2+ 2H2O -> C2H4 + 3O2 , the mole ratio of water to oxygen is

Answers

2 moles of water to 3 moles of oxygen. 2:3 should be your answer if you look at the coefficients

I'm gonna guess 2:3 because you have two moles of water and three moles of oxygen

What happens when a cold drink sits in a hot room? A) It remains coldincorrect answer B) It gets warmerincorrect answer C) It starts boilingincorrect answer D) It starts freezingincorrect answer

Answers

Answer:

its B

Explanation:

how would you describe the forces between the particles of solids??

Answers

Solid – In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other.

Answer:

Explanation:

In a solid, the attractive forces keep the particles together tightly enough so that the particles do not move past each other. ... The kinetic energy of the molecule is greater than the attractive force between them, thus they are much farther apart and move freely of each other.

i need ur help guys please. 50 pts

Answers

Answer:

Sodium Chloride - Food flavoring, preservation and desiccation, fermentation processes, wood pulp bleaching in paper industry, buna and neoprene production in plastic industry.

Sodium Hydroxide - Bar soap and detergent production, drain cleaning, paper manufacturing, purification of bauxite ore prior aluminium production, artificial fibers production, oil refining.

Sodium Carbonate - Glass manufacturing, water softening, food additive, soap manufacturing, antiacid production.

Sodium Sulphate - Drugs for therapeutical use, wood pulp production in paper industry, soap and detergent production.

Potassium Nitrate - Fertilizer production, rocket propellant and gunpower production, wastewater treatment.

Potassium Chlorate - Oxygen-supply systems in aerospace applications.

Potassium Permanganate (VII) - Treatments of fungi and bacterial infections, wasterwater treatment and gastric irrigation.

Potassium Chloride - Hypoalkemia treatment, flavor enhancing in food.