What is the concentration of X2- in a 0.150 M solution of the diprotic acid H2X? For H2X, Ka1 = 4.5 x 10 - 6 and Ka2 = 1.2 x 10 - 11.

Structural Formula of Ethene: H2C=CH2
Structural Formula of Ethane: CH3-CH3

This reaction is known as hydrogenation.

The question asks for the structural formulas of the products and the name of the reaction mechanism for three given reactions. However, the specific reactions and their corresponding mechanisms are not provided.

To provide a helpful response, I'll give you an example of a reaction, its products, and the name of the mechanism.

Example:

Reaction: The reaction of an alkene with hydrogen gas (H2) in the presence of a catalyst (e.g., platinum) to form an alkane.

Products: In this reaction, the alkene reacts with hydrogen to form an alkane. For example, if the alkene is ethene (C2H4), the product would be ethane (C2H6).

Structural Formula of Ethene: H2C=CH2
Structural Formula of Ethane: CH3-CH3

Reaction Mechanism: This reaction is known as hydrogenation. Hydrogenation is a type of addition reaction, where hydrogen atoms are added across the carbon-carbon double bond of the alkene to form a single bond and convert it into an alkane.

Please note that without specific reactions provided, I can only give you an example to illustrate the process of determining the products and reaction mechanism. If you have specific reactions in mind, please provide them, and I will be glad to assist you further.

learn more about hydrogenation on:

https://brainly.com/question/13468771

#SPJ11

Answer:

150

Explanation:

300 divided by 2

Answer:

[C]

General Formulas and Concepts:

Chemistry

Kinetics

Equilibrium

Explanation:

Equilibrium Expressions are only written for either aqueous solutions or gases. Solids and liquids are negligible for equilibrium. Our equilibrium constant expression would be \(\displaystyle K = \frac{[CO][H]}{[H_2O]}\).

∴ Carbon C (s) is not included in the expression and is our answer.

Answer:

The three compounds are different compounds

Explanation:

The mass of Nitrogen that combines with 1 gram of Oxygen in  Compound A = 1.750 g

The mass of Nitrogen that combines with 1 gram of Oxygen in  Compound B  = 0.8750 g

The mass of Nitrogen that combines with 1 gram of Oxygen in  Compound C  = 0.4375 g

According to the law of multiple proportions, when atoms of two different elements react to form compounds, the masses of one of the elements that combines with a fixed mass of the other element are in small whole number ratios.

The ratio of the masses are;

Mass of Nitrogen in Compound B/(Mass of Nitrogen in Compound C =  0.8750/0.4375 = 2

Mass of Nitrogen in Compound A/(Mass of Nitrogen in Compound C =  1.750/0.4375= 4

Mass of Nitrogen in Compound A/(Mass of Nitrogen in Compound B =  1.750/0.8750= 2

Given that the masses of Nitrogen in the three compounds are in small whole number ratios, the three compounds, Compound A, Compound B, and Compound C are different compounds.

The mass of ZnCl2 that can be produced is 0.496 g.

The balanced equation for the reaction between zinc (Zn) metal and hydrochloric acid (HCl) is: Zn(s) + 2HCl(aq) → ZnCl2(aq) + H2(g)

The molar mass of Zn is 65.38 g/mol and the molar mass of ZnCl2 is 136.29 g/mol.

To determine the mass of ZnCl2 that can be produced from 0.238 g of Zn, we need to use stoichiometry.

To do this:

First, convert the given mass of Zn to moles by dividing by its molar mass: 0.238 g Zn × (1 mol Zn/65.38 g Zn) = 0.00364 mol Zn

Since the balanced equation shows that 1 mole of Zn reacts with 1 mole of ZnCl2, then the number of moles of ZnCl2 produced will be the same as the number of moles of Zn.

Thus,0.00364 mol ZnCl2 will be produced from 0.238 g Zn.

To convert the moles of ZnCl2 to grams, we multiply by its molar mass:0.00364 mol ZnCl2 × 136.29 g ZnCl2/mol ZnCl2 = 0.496 g ZnCl2

Therefore, the mass of ZnCl2 that can be produced is 0.496 g.

Know more about mass:

https://brainly.com/question/11954533

#SPJ11

Moles of Allura Red = stock volume x stock concentration

= 5.00/1000 x 1.90 x \(10^{-4}\) = 9.50 x \(10^{-7}\) mol

Volume of diluted solution = 100 mL = 0.100 L

The concentration of diluted solution = moles/volume

= 9.50 x\(10^{-7}\)/0.100 = 9.50 x \(10^{-6}\) M

Dilution is the process of reducing the concentration of a solute in a solution by simply adding more solvent to the solution, eg water. To dilute a solution, add solvent without adding solute. Dilution is the process of adding solvent to a solution to reduce the concentration of solutes.

Concentration is the process of removing solvent from a solution to increase the concentration of solutes in the solution. Dilution is the process of reducing the concentration of a solute in a solution usually by simply mixing the solute with more solvent. Add water to the solution. Diluting a solution means adding solvent without adding solute.

Learn more about The concentration here:-https://brainly.com/question/17206790

#SPJ4

The tiny unit of an element that retains the properties of the element is called an atom.

Atoms are the basic building blocks of matter and are composed of a nucleus, which contains positively charged protons and neutral neutrons, surrounded by negatively charged electrons that orbit the nucleus. The unique arrangement of protons, neutrons, and electrons in an atom determines its chemical and physical properties, such as its atomic number, mass, and reactivity.Atoms are incredibly small and are typically measured in units of picometers or angstroms.

Each element is defined by the number of protons in its atomic nucleus, which is known as its atomic number. For example, carbon atoms have six protons in their nucleus, while oxygen atoms have eight protons. The number of neutrons in an atom's nucleus can vary, resulting in isotopes of the same element with different atomic masses.

Atoms can combine with other atoms to form molecules and compounds through chemical bonds, including covalent bonds, ionic bonds, and metallic bonds.

Learn more about atoms here:

https://brainly.com/question/13654549

#SPJ4

Answer:

I think #3 might be the answer .

Because in #1 atomic mass tells mass .

#4 Atomic number doesnot only tell about the electrons atom has

The order of increasing disorder is solid, liquid, and gas. This arrangement is based on the increasing freedom of movement and randomness of the particles as we move from solid to liquid to gas.

Solid: Solids have a highly ordered arrangement of particles, with strong intermolecular forces and fixed positions of atoms or molecules.

Liquid: Liquids have less order compared to solids, as particles have more freedom of movement while still maintaining close proximity to one another.

Gas: Gases have the highest degree of disorder among the three phases. Gas particles are widely spaced, move freely, and lack a definite shape or volume.

To know more about Solid, here

brainly.com/question/20461295

#SPJ4

Answer:

1.04 L.

Explanation:

What is given?

Temperature 1 (T1) = 240 K.

Pressure 1 (P1) = 670 mmHg.

Volume 1 (V1) = 1.28 L.

Temperature 2 (T2) = 198 K.

Pressure 2 (P2) = 680 mmHg.

What do we need? Volume 2 (V2).

Step-by-step solution:

To solve this problem, we have to use the combined gas law. The combined gas law expresses the relationship between the pressure, volume, and absolute temperature of a fixed amount of gas. For a combined gas law problem, only the amount of gas is held constant. The formula of combined gas law is:

We need to find the volume 2 (V2), so let's solve for this unknown value and let's replace the given data that we have:

The final volume for this case would be 1.04 L, the volume is being reduced.

The component that must also be present for translation to take place is Factor Polymerases and GTP Initiation. Correct answer: letter C.

Since, the factorial polymerases bind to the mRNA and initiate the translation process. GTP is also needed to provide the energy necessary to move the mRNA along the ribosome. Without these components, translation could not take place.

Is the process by which extracellular signals, such as hormones and growth factors, are converted into intracellular signals. This process begins with the binding of a signal molecule to a receptor on the surface of the cell.

This binding triggers a series of biochemical reactions and intracellular signaling pathways, leading to a cellular response, such as:

Learn more about the cell transduction process:

https://brainly.com/question/29510331

#SPJ4

The given statement "The molar enthalpy of sublimation of a given substance can be determined if its enthalpies of fusion and vaporization are known" is true.

The molar enthalpy of sublimation of a substance can be determined if its enthalpies of fusion (melting) and vaporization (boiling) are known. The enthalpy of sublimation refers to the energy required to change a substance from the solid phase directly to the gaseous phase, bypassing the liquid phase.

The enthalpy change during sublimation can be calculated by considering the enthalpies of fusion and vaporization. When a substance undergoes sublimation, it first requires energy to melt from the solid phase to the liquid phase (enthalpy of fusion) and then additional energy to vaporize from the liquid phase to the gaseous phase (enthalpy of vaporization). The sum of these two enthalpies represents the overall energy change during sublimation.

Therefore, by adding the enthalpy of fusion and the enthalpy of vaporization, one can determine the molar enthalpy of sublimation for a given substance.

Learn more about molar enthalpy from the link given below.

https://brainly.com/question/32136429

#SPJ4

Answer:

water

hehehehheehehhe

Answer:

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms. These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding

Answer:

boiling of water.

Explanation:

Answer:

Examples

Explanation:

Changes in the size or form of matter are examples of physical change. Physical changes include transitions from one state to another, such as from solid to liquid or liquid to gas. Cutting, bending, dissolving, freezing, boiling, and melting are some of the processes that create physical changes.

From the structure of SF4 shown, the molecular geometry of the molecule is trigonal bipyramidal.

The term molecular geometry has to do with the arrangement of the electron pairs in a molecule.

The arrangement of electron pair in a molecule is based on the valence shell electron pair repulsion theory.  From the structure of SF4 shown, the molecular geometry of the molecule is trigonal bipyramidal.

Learn more about molecular geometry:https://brainly.com/question/14953274

#SPJ1

Explanation:

Simple cell has liquid chemicals and it is difficult to carry from one place to another. Dry cell has no solution. So, it is easier to carry it from one place to another and there is no risk of spilling acid from the dry cell.

The hydroxide ion concentration of the solution is 1.25×10⁻⁵ M.

To find the hydroxide ion concentration of the solution, you need to use the ion product constant for water (Kw) at 25°C.

1. The ion product constant for water (Kw) at 25°C is 1.0×10⁻¹⁴.

2. Kw = [H3O+][OH-], where [H3O+] represents the hydronium ion concentration, and [OH-] represents the hydroxide ion concentration.

3. Given the hydronium ion concentration [H3O+] = 8.0×10⁻¹⁰ M, we need to find the hydroxide ion concentration [OH-].

4. Rearrange the equation to find [OH-]: [OH-] = Kw / [H3O+]

5. Substitute the values: [OH-] = (1.0×10⁻¹⁴) / (8.0×10⁻¹⁰)

6. Calculate the hydroxide ion concentration: [OH-] = 1.25×10⁻⁵ M

The hydroxide ion concentration of the solution is 1.25×10⁻⁵ M.

Learn more about constant for water.

brainly.com/question/30782616

#SPJ11

The percent composition of Mg in MgCl2 is 25.529%.

The correct formula for magnesium chloride is MgCl2.

To determine the percent composition of Mg, divide the molar mass of Mg by the molar mass of MgCl2 and multiply by 100% .

M Mg:

24.305 g/mol

(atomic weight of periodic table in g/mol)

MMgCl2:

(24.305g/mol Mg)+(2×35.45g/mol Cl)=95.305 g/mol

Percent composition of Mg% Mg=24.305g/mol

95.205g/mol × 100%=25.529% Mg

The percent composition of Mg in MgCl2 is 25.529%.

learn more about percent composition here:

https://brainly.com/question/17517859

#SPJ4

Aluminum hydroxide will breakdown in a sodium hydroxides solution because the [Al(OH)4] ion, a basic ion which is soluble in water, will develop as a result of the excess hydroxide.

In chemistry, a solution is a homogeneous combination of two or more compounds in their relative proportions, which may be constantly changed up to what is known as the limitation of solubility. Although combinations of gas and solids are possible, the term "solution" was mostly frequently used to refer to the liquid condition of matter.

When a solvent and just a solute, several chemicals, are combined, they form a solution. A solution is generated when a molecule and a solvents are combined.

To know more about Solution visit:

https://brainly.com/question/7932885

#SPJ4

The processes that come into play during the dehydration process in an oven is option  A. Heat, low humidity and air current.

What are the methods of dehydration?

Foods can be dried in a number of ways, including the sun, an electric dehydrator, a regular oven, a microwave (just for herbs), air drying, and solar drying.

Note that Food dehydration involves simultaneous mass and heat transfers within the food as well as changes in the energy transfer medium. When food is dehydrated using a process other than hot air, the moisture may need to be removed from the food by means of air or another gas.

Hence, One of the simplest methods for preserving food is dehydration. You don't need to purchase specialized jars, preservers, or equipment. Not even a dehydrator is necessary. Food can be dried in your oven, whether it's a toaster oven or a regular oven.

To know more about dehydration from the given link:

brainly.com/question/12261974

#SPJ4

Answer: c extracting oil

Explanation:

Saudi Arabia is known for there huge oil market

Answer:

rust

Explanation:

Answer:

A. Weathering breaks down rocks; Deposition leaves them in new places.

Explanation:

Weathering is basically the complete process of rocks breaking apart.  In contrast, deposition is when the rocks are moved and carried away from their original place and put in new locations.

Answer:

a

Explanation:

The statement is true. Thiohemiacetals are thio analogs of hemiacetals, which are formed by the addition of a thiol (-SH) to a carbonyl group (C=O).

Thiohemiacetals can undergo hydrolysis to form an acyl thioester intermediate, which has a large free energy of hydrolysis. This is because the thioester bond is a high-energy bond, and the hydrolysis of this bond releases a large amount of energy. Therefore, the statement is true.

Thiohemiacetals are formed by the addition of a thiol (-SH) to a carbonyl group (C=O). This reaction is analogous to the formation of hemiacetals from aldehydes or ketones and alcohols. Thiohemiacetals are commonly used as intermediates in organic synthesis, particularly in the synthesis of sulfur-containing compounds.

Thiohemiacetals can undergo hydrolysis to form an acyl thioester intermediate. The hydrolysis reaction is catalyzed by an acid or a base. The acyl thioester intermediate has a large free energy of hydrolysis because the thioester bond is a high-energy bond.

The hydrolysis of this bond releases a large amount of energy, which can be harnessed by the cell to drive energy-requiring processes such as biosynthesis, muscle contraction, and nerve impulse transmission.

learn more about Hydrolysis here:

https://brainly.com/question/12237250

#SPJ11

Answer:

Explanation:

Let e=eggs

Let f=flour

2/3*f=e

The heat that is absorbed in each case or the mass obtained are;

1)  305 g

2) -27.4 J

3) 523°C

4) 465 g

5)  -58.9 J

Let us now go on to look at the question that have been asked and the things that we need to find in each case. If we look at the question we can see that;

q = heat

dT = temperature change

m = mass

1) q = 119150 J

ΔT = 1409.71

c = 0.2772

q = mcdT

m = q/cdT

m = 119150 J/1409.71 *  0.2772

m = 305 g

2) q = 83.5 * 2.05 * (-0.16)

q = -27.4 J

3) dT = q/mc

= 57984 J/535.2 * 0.207

= 523°C

4) m = q/dT * c

m = 1914.9 J/(-17.27) * 0.2386

m = 465 g

5) q = 30.3 * 0.2772 * (-7.01)

q = -58.9 J

Learn more about heat:https://brainly.com/question/1429452

#SPJ1

The molecular mass (u) of Phosphoric Acid (H3PO4).[H=1,P=31,O=16]  is 98U.so, option (c) is correct.

What is mass?

The term matter defines mass, and it measures matter. Mass is discovered from the different atoms and particles. Group, in simple terms, determines the weightage of the substance. Mass is expressed in the terms kilograms. Mass of the quantity is a much-needed thing in the laboratory. The quantity of the substance does the majority of the experiment. Gravity also takes place as an independent factor in calculating mass. Mass is the scalar quantity. Gravity and force are playing the independent factor in the mass. For calculating the two planet mass, know the force of the planet.

What is molar mass?

The molar mass is the substance; it helps to determine the mass of the sample substance to the atom of the sample or substance. The molar mass depends on the molecular formula and the isotopes of the atom. Molar mass is used for the inducement of electric charge. Molar mass is the measurement of the volume of the mass. The molar mass is expressed in the unit of dalton.

Molar mass is the sum of the masses of all the individual atoms present in a molecule or compound.

Orthophosphoric acid is the important acid of oxygen and phosphorous.

It is used for making phosphate salts for fertilizers.

Chemical formula of Orthophosphoric acid is H3PO4.

Atomic mass of Oxygen O is 16 u.

Atomic mass of hydrogen H is 1 u.

Atomic mass of Phosphorous P is 31 u.

Molecular mass of Orthophosphoric acid H3PO4 = (Atomic mass of Hydrogen) x 3 + (Atomic mass of Phosphorous) x 1 + (Atomic mass of Oxygen) x 4

= ( 1 x 3 ) + ( 31 x 1 ) + ( 16 x 4 )

= 3 + 31 + 64

= 98 u.

Molecular mass of Orthophosphoric acid H3PO4 is 98

Therefore,  molecular mass (u) of Phosphoric Acid (H3PO4).[H=1,P=31,O=16]  is 98U.(c).

Learn more about mass from the given link.

https://brainly.com/question/24191825

#SPJ4

The substances that have Delta Hf = 0 kJ/mol are O2(g), Br2(l), He(g), Fe(s).

Delta Hf = 0 is the standard enthalpy of any element in its most stable form is equal to zero.

When enthalpy is negative, the delta Hf is minus zero, which means the system releases heat.

When the system gains heat, the delta Hf is positive.

Thus, the substances are O2(g),  Br2(l), He(g), Fe(s).

Learn more about Delta Hf, here:

https://brainly.com/question/25912291

Answer:

1,4,5,6

Explanation:

Answer:

Numbers use periods in English to separate the whole number from the decimal. A period used in a number is also called a "decimal point" and it is read "point" unless it refers to money

Explanation:

Answer:

The period number of an element is related to the number of electrons that are in its shell.