1. 4 Fe + 302 → 2 Fe,03
How many moles of iron would be needed to react with 3.82 moles of oxygen?
How many moles of O2 are needed to produce 34.7 g of Fe2O3

Answer:

hey here is the answer to your question.

Explanation:

1) Write a balanced equation for the reaction occurring. (*Iron occurs in a few different oxidation states, but I will assume we're referring to Fe(II) or Fe2+)

Fe + CuSO4 -> Cu + FeSO4

2) Calculate the number of moles of each reactant.

Fe: 1.924 g * (1 mol / 55.85 g) = 0.03455 mol Fe

CuSO4: 0.1363 L * (0.0750 mol / 1 L) = 0.01022 mol CuSO4

3) Determine the limiting reactant. Because we have fewer moles of copper(II) sulfate and are reacting both reactants in a 1:1 ratio, we will run out of copper(II) sulfate first, making it the limiting reactant.

4) Convert moles of the limiting reactant to moles and grams of product of interest.

0.01022 CuSO4 (1 mol Cu / 1 mol CuSO4 ) (63.55 g Cu / 1 mol Cu) = 0.6495 g Cu

Answer:

See Explanation

Explanation:

Let the mass of salt be x

Let the mass of solution be 10 g

Percentage by mass of salt = 0,25%

So;

Percent concentration of salt = mass of salt/mass of solution * 100

0.25 = x/10 * 100

0.25 * 10/100 = x

x= 0.025 g of salt

Let the mass of water be y

Since mass of solution = mass of salt + mass of water

10 g = 0.025 g + y

y = 10 g - 0.025 g

y = 9.975 g

Answer:

90g

Explanation:

I hope this helps plz give brainliest ! :D

Answer:

The four inner planets have slower orbits, slower spin, no rings, and they are made of rock and metal. The four outer planets have faster orbits and spins, a composition of gases and liquids, numerous moons, and rings. The outer planets are made of hydrogen and helium, so they are called gas giants. Cool stuff right?

Explanation:

Answer:

n = Initial volume/22.4L

Explanation:

The molar concept is simply one that is used to find the Number of moles and explain the relationship it has with avogadro's number, molecular mass, molar mass e.t.c.

Now, in terms of molar mass, number of moles is given by the formula;

n = mass of the sample/molar mass

In terms of avogadro's number, number of moles is;

1 mole = avogadro's number = 6.02 × 10^(23)

Now, when dealing with ideal gases, the molar volume of an ideal gas is 22.4 L.

Now the relationship between this volume and the mole concept is that the number of moles is gotten by dividing the initial volume by this molar volume.

Thus;

n = Initial volume/22.4L

Answer:

Reaction will move rightwards.

Explanation:

Hello there!

In this case, according to the proposed question, it turns out possible for us to  figure out the effect of the addition of silver nitrate, by using the following representative equation for the formation of the silver chloride precipitate:

[tex]Ag^+(aq)+Cl^-(aq)\rightleftharpoons AgCl(s)[/tex]

Now, due to the addition of silver nitrate, we will be actually adding silver ions to the solution, which means that, in terms of the Le Ch atelier's principle, the reaction will shift to the right towards the formation of more silver chloride precipitate.

Best regards!

Given that the enthalpy change ΔH for the reaction is negative, energy is released during the reaction (Option D)

From the data given above, we can see that the enthalpy change (ΔH) for the reaction is negative.

This simple means that heat energy is lost to the environment.

Therefore, we can conclude that the during the reaction, energy is released (Option D)

Learn more about enthalpy change:

https://brainly.com/question/4526346

#SPJ2

Answer:

I think B but I'm not sure.

Answer: Amplitude of the light wave impacts brightness; the wavelength is what impacts/is associated with color.

Answer:

Water molecules feature the combinations of hydrogen and oxygen atoms in a 2:1 ratio. Since they are present in a fixed ratio of mass, water molecules obey the law of constant proportions. Water is formed when two molecules of the diatomic hydrogen gas, combine with one molecule of the diatomic oxygen gas to produce two molecules of water

Answer:

Final temperature = 1279.25 K

Explanation:

We can solve this using the formula for Charles law since we are given volume and temperature.

From Charles law, we know that;

V1/T1 = V2/T2

Where;

T1 is the initial temperature

V1 is the initial volume

T2 is the final temperature

V2 is the final volume

We are given;

V1 = 2 L

T1 = 301 K

V2 = 8.5 L

Thus, making T2 the subject, we have;

T2 = V2•T1/V1

Plugging in the relevant values;

T2 = 8.5 × 301/2

T2 = 1279.25 K

Ester functional group is the given image. Therefore, the correct option is option D among all the given options.

A functional group in organic chemistry is a substituent and moiety inside a molecule that triggers the molecule's distinctive chemical processes. No matter how the rest of a molecule is made up, the very same functional group would experience the same or a similar set of chemical events.

This permits the planning of chemical synthesis as well as the methodical prediction of chemical changes and the behavior of chemical molecules. Other functional groups close by can affect a functional group's reactivity. Retrosynthetic analysis can be used to design organic synthesis by using functional group interconversion. Ester functional group is the given image.

Therefore, the correct option is option D.

To know more about functional group, here:

https://brainly.com/question/29263610

#SPJ7

Answer: D. Ester

Explanation:

C Amino Acid molecules are put back together in cells to make protein molecules for growth.

- Because to repair or make new cell the nutrients require is protien and 50 % of your dry body is nothing but protien.

Answer:

The answer is C

Explanation:

I did it on edge

Answer:

The correct answer is - a) red, blue and violet.

Explanation:

In the visible spectrum, the hydrogen atom emits four different wavelengths that are visible to the human eye. The four wavelengths are these lines are 656 nm, 486 nm, 434 and 410 nm. Shorter wavelengths are not visible to human eyes fall in ultravoilet lights at less than 400 nm.

The H-α line is the red color wavelength at 656 nm, the blue color has two different wavelengths that are 486 nm sometimes called cyan, and 434 nm, and violet at 410 nm.

Answer:

okie then you too

Two or more than two atoms with different physical or chemical properties can not combine together to form an element. Therefore, the electronic configuration of Nb²⁺ is [Kr]4d³.

Element generally consist of atoms or we can atoms combine to form element. Atoms of an element is always same, means all the properties of all atoms of one type of element is same.

The systematic distribution of electrons in the various atomic orbitals is called its electronic configuration. The atomic number of Nb is 41. The electronic configuration of Nb is [Kr] 4d⁴ 5s¹. The electronic configuration of Nb²⁺ is [Kr]4d³. Nb²⁺ also has an odd number of valence electrons. The superscripts represents the number of electrons in each orbitals.

Therefore, the electronic configuration of Nb²⁺ is [Kr]4d³.

To know more about element, here:

brainly.com/question/8460633

#SPJ5

Answer: i believe the answer is stayed the same

I hope u get this right

Answer:

1.625 moles

Explanation:

mole=mass/molar mass

mole= 52/25

Answer:

Geologic carbon sequestration is the process of storing carbon dioxide (CO2) in underground geologic formations. The CO2 is usually pressurized until it becomes a liquid, and then it is injected into porous rock formations in geologic basins. This method of carbon storage is also sometimes a part of enhanced oil recovery, otherwise known as tertiary recovery, because it is typically used later in the life of a producing oil well. In enhanced oil recovery, the liquid CO2 is injected into the oil-bearing formation in order to reduce the viscosity of the oil and allow it to flow more easily to the oil well.

Biologic carbon sequestration refers to storage of atmospheric carbon in vegetation, soils, woody products, and aquatic environments. For example, by encouraging the growth of plants—particularly larger plants like trees—advocates of biologic sequestration hope to help remove CO2 from the atmosphere.

Hope this helped!

There are two types of chemical compound one is covalent compound and other is ionic compound. Therefore, ionic bond is formed by complete transfer of electron and covalent bond is formed by partial sharing of electron.

Chemical Compound is a combination of molecule, Molecule forms by combination of element and element forms by combination of atoms in fixed proportion.

An ionic compound is a metal and nonmetal combined compound. Ionic bonds are formed by complete transfer of electron from one element to another element. Covalent compound are formed by elements whose electronegativity difference is very low. Covalent bond is formed by sharing of electron.

Therefore, ionic bond is formed by complete transfer of electron and covalent bond is formed by partial sharing of electron.

To learn more about chemical compound, here:

brainly.com/question/26487468

#SPJ2

Answer:

D in addition to the original sample. In a file cabinet, she finds a paper labeled "Electrochemistry Activity" which lists five metals: zinc, aluminum, magnesium, silver and tin She is not able to find anything that identifies which metals correspond to which letters. She makes some quick observations, summarized below.

Explanation:

Answer: in 25 yards there is 75 feet. Witch is the same to say that 25 yards is 75 feet.

Explanation:

Answer:

25yd is bigger

Explanation:

Answer:

I believe it's either a or b but I'm pretty sure that it's a

Answer:

they both revolve or rotate around something

Explanation:

The earth revolves around the sun and the moon rotates around the earth.

Answer:

9.10938356 × 10-31 kilograms

Explanation:

lightest stable subatomic particle known. It carries a negative charge of 1.602176634 × 10−19 coulomb, which is considered the basic unit of electric charge. The rest mass of the electron is 9.1093837015 × 10−31 kg, which is only 1/1,836the mass of a proton.

Answer: Hope This Helps

Explanation:

Here's just some additional information: Electron Mass In physics, the electron mass or mass of electron or electron rest mass one of the fundamental constants and is defined as the mass of a stationary electron. Denoted by m e. The value of electron mass is also known as the invariant mass of an electron

(Also, the screenshot is the answer. Also, can i have brainliest so i can go to next rank! Thanks and have a blessed day!)

Answer:

H20 +CO2 >H2CO3

Explanation:

Please don't report me just want to help and if this helped please leave a heart.

The chemical reaction that represents a synthesis reaction is C +O2 → CO2.

A synthesis reaction is a type of chemical reaction in which new compounds or substance are formed from the interaction of two elements.

It is the formation of new substances or products.

Therefore, The chemical reaction that represents a synthesis reaction is C +O2 → CO2.

Learn more about synthesis reaction below.

https://brainly.com/question/16560802

#SPJ2

Answer:

112.625 mL

Explanation:

Applying,

ML = M'L'.................... Equation 1

Where M = Initial molarity or concentration of calcium chloride, L = initial volume of calcium chloride, M' = Final molarity of calcuim chloride, L' = Final volume of calcuim chloride.

make L the subeject of the equation

L = M'L'/M................ Equation 2

From the question,

Given: M = 1.60 mol/L, M' = 0.34 mol/L, L' = 530 mL

Substitute these values into equation 2

L = (0.34×530)/1.60

L = 112.625 mL

Answer:

You will need 12.0 moles of F₂

Explanation:

Based on the chemical equation, 2 moles of AlF₃ are produced when 3 moles of F₂ are added in an excess of Al.

Using this expression: 2mol AlF₃ = 3mol F₂ we can find the moles of F₂ as follows:

8.00 mol AlF₃ * (3mol F₂ / 2mol AlF₃) =