what is the product of this reaction mgso4(aq) bacl2(aq)

The atomic mass of the unknown metal is 238 g/mol.

The density of an unknown metal is 8.94 g/cm³ and its atomic radius is 0.126 nm. It has a face-centered cubic lattice. We must first establish a connection between the face-centered cubic (fcc) unit cell and the atomic radius.The fcc unit cell's sides are made up of four atoms, one in each of the cell's corners and one in the center of each face. Thus, the length of the cell's diagonal is 4r/√2, where r is the atomic radius.

We can make a calculation using this information. Let a be the length of one of the sides of the cubic cell, then: a = 2r√2The volume of the unit cell (V) is: V = a³/4 = 4r³/3√2The mass of one unit cell (m) is calculated using the density (ρ):ρ = m/V => m = ρ x V Substituting V from the previous equation:

m = (ρ x 4r³)/3√2

The number of atoms (N) in the unit cell is calculated by dividing the volume of the unit cell by the volume of one atom (V1):N = V/V1 = (a³/4) / ((4πr³)/3) = (a/r)³ / (4π/3) = (4r/√2r)³ / (4π/3) = 16 / 3πThus, the atomic mass (M) of the metal is:M = m/N = (ρ x 4r³)/3√2 x 3π/16 = (ρ x r³ x 4π/4)/√2 x 4 = ρ x r³ x √2/2So,M = 8.94 g/cm³ x (0.126 nm)³ x √2/2 = 238 g/mol Therefore, the atomic mass of the unknown metal is 238 g/mol.

To learn more about atomic mass visit below link

https://brainly.com/question/29117302

#SPJ11

Answer:

they make tissue. form organ and whole body an i true..

The side of the ladder are made up of alternating sugar and phosphate molecules the steps of the ladder are made up of bases held together by hydrogen bonds.

The fundamental unit of DNA is referred to as a nucleotide. One sugar molecule, one phosphate molecule, and one of the four bases make up a nucleotide. DNA's nucleotides align to form two lengthy backbones that resemble a ladder's handrails in the shape of sugar and phosphate molecules. Between the sugar molecules on the two handrails, two bases combine to form the ladder's rungs. The "rungs" between the phosphate molecules are absent. This was significant to Watson and Crick since it enabled them to understand the formation of the double helix.

James Watson and Francis Crick discovered the DNA structure in 1953. A double helix, often known as a twisted ladder, is the structure. Sugar and phosphate molecules alternately make up the sides of the ladder. Hydrogen bonds serve as a flimsy means of holding the two sides of the DNA ladder together.

To know more about the structure of DNA, refer to the following link:

https://brainly.com/question/14537776

#SPJ4

The distinctive colors of specific elements when used in  fireworks owes to electrons moving from an excited energy state to the ground state.

Neils Bohr in his atomic model postulated that electrons in atoms are found in energy levels. Each energy level corresponds to a fixed amount of energy.

The lowest energy level in the atom is called the ground state and higher energy levels are called excited states.

When an electron receives energy, it can move from a ground state to excited state.

This excess energy is given out as visible light of a characteristic wavelength or color when the electron is moving from an excited energy state to the ground state.

This accounts for the distinctive colors of specific elements when used in

fireworks.

Learn more: https://brainly.com/question/1596638

The molecular orbitals linked to H+ are more affected by nitrogen (N) rather than oxygen (O) when NO- ions react with H+ ions to form chemical bonds, resulting in the formation of HNO.

In the formation of chemical bonds, the reactivity and bonding characteristics are determined by the electronic configuration and orbital interactions of the atoms involved. In the case of NO- reacting with H+, we consider the electronic configurations of oxygen (O) and nitrogen (N) atoms.

Oxygen has six valence electrons and belongs to Group 16 of the periodic table. Its electronic configuration is 1s² 2s² 2p⁴. When forming bonds, oxygen typically accepts two electrons to achieve a stable octet configuration.

Nitrogen has five valence electrons and belongs to Group 15. Its electronic configuration is 1s² 2s² 2p³. Nitrogen typically needs to gain three electrons or share three pairs of electrons to achieve a stable octet configuration.

In the case of NO-, the oxygen atom carries a negative charge (O-), making it more electron-rich than nitrogen.

learn more about molecular orbitals :

https://brainly.com/question/31828377

#SPJ4

Answer:

Explanation:

The mass of a substance when given the density and volume can be found by using the formula

From the question

volume of substance = 250 cm³

density = 4.259 g/cm³

We have

mass = 4.259 × 250

We have the final answer as

Hope this helps you

The empirical formula of this unknown compound with carbon, hydrogen and nitrogen is C2HN3.

Originally, chemical formulas were generated by determining the masses of all the components that combine to create a molecule, and this resulted in two main types of chemistry formulae: molecular formulas and empirical formulas.

A compound's empirical formula offers the simplest ratio of the number of various atoms present, but the molecular formula specifies the actual number of each single element present in a molecule. It is an empirical formula if the formula is simplified. The molecular formula, which is a multiple of the empirical formula, is often employed.

Mass of compound is 0.1156 g

mass of CO2 = 0.1638 g

mass of H2O = 0.1676 g

Molecular weight of CO2 = 44 g

Molecular weight of H2O = 18 g

moles of CO2 = 0.00372

0.00372 x 12 = 0.04464 = C

H = 0.00931 x 2 = 0.01862

N = 0.1156 - (0.04464 + 0.01862) = 0.05234

Empirical formula is,

C:H:N = 0.04464 : 0.01862 : 0.05234 = 0.04 : 0.02 : 0.06

C : H : N = 2 : 1 : 3

So Empirical formula is C2HN3.

Learn more about Empirical formula :

https://brainly.com/question/1603500

#SPJ4

Answer:

The process of photosynthesis occurs when green plants use the energy of light to convert carbon dioxide (CO2) and water (H2O) into carbohydrates. Light energy is absorbed by chlorophyll, a photosynthetic pigment of the plant, while air containing carbon dioxide and oxygen enters the plant through the leaf stomata.

Answer:

I think it is K.

Explanation:

It is has more gas than the others.

Answer:

K

Explanation: K(Potassium) is actually a very weak metal that is usually in solid form. All of the other options(Hydrogen, Oxygen, and Nitrogen) are nonmetals that are usually gasses.

The three true statements are:1,2,3

Three true statements from the provided options are:

The bilayer of a cellular membrane is primarily composed of amphipathic (amphiphilic) lipids. This statement is true. The cellular membrane consists of a phospholipid bilayer, with the hydrophilic (polar) heads facing the aqueous environment and the hydrophobic (nonpolar) tails facing inward, creating a barrier.

The tendency of hydrophobic molecules to aggregate in water is called the hydrophobic effect. This statement is true. Hydrophobic molecules repel water due to their nonpolar nature, causing them to aggregate together to minimize contact with water. This phenomenon is known as the hydrophobic effect.

Placing a hydrophobic molecule into water causes water molecules to orient themselves around it. This statement is true. In order to minimize contact with hydrophobic molecules, water molecules arrange themselves in an ordered network around the hydrophobic molecule, forming a hydration shell. This arrangement is energetically favorable and helps to stabilize the system.

The other statements, such as the increase of water entropy around hydrophobic molecules and the formation of micelles by nonpolar molecules, are not true. Increasing the order of water around hydrophobic molecules decreases the entropy of water, and nonpolar molecules typically form micelles in nonpolar solvents rather than in water.

To know more about Nonpolar molecules refer here:

https://brainly.com/question/28300881

#SPJ11

Answer:

Ohhhhhh

Explanation:

Ohhhhhhhhhhhhhhh

There are approximately 6.02 × 10²³ atoms of phosphorus in one mole of 30.974 grams of phosphorus (option A).

The number of atoms of a substance can be calculated by multiplying the number of moles of the substance by Avogadro's number. That is;

no of atoms = no of moles × 6.02 × 10²³

According to this question, there are 30.974 grams of phosphorus in one mole of phosphorus. The number of atoms can be calculated as follows:

no of moles of P = 30.974g ÷ 31g/mol = 0.99mol

number of atoms = 0.99 mol × 6.02 × 10²³

number of atoms = 6.02 × 10²³ atoms

Therefore, there are approximately 6.02 × 10²³ atoms of phosphorus in one mole of 30.974 grams of phosphorus.

Learn more about number of atoms at: https://brainly.com/question/8834373

#SPJ1

Answer:

Explanation:

Your answer is C

Answer:

Unknown 4

Explanation:

To synthesize the compound described, the required alkene is 2-methyl-3-butene.

This can be drawn on the canvas using the tools, atoms, and advanced template toolbars. To draw the molecule, add two carbon atoms to the canvas and then add a third atom, an oxygen atom, as the third atom in the three-membered ring. To add the hydrogen atoms, use the wedge and dash buttons to attach the hydrogen atom to the first and second carbon atoms respectively.

Use the dash button to attach the CH2CH2CH3 group to the first carbon atom, and use the wedge button to attach the CH2CH3 group to the second carbon atom. Finally, to show the appropriate stereochemistry, use the dashed or wedged buttons and then click a bond on the canvas.

Learn more about stereochemistry at https://brainly.com/question/28658912

#SPJ11

examples of types of chemical markers associated with dna that determines when, where and by how much genes are expressed in each cell is epigenetic.

When, where, and how much a gene is expressed in a cell depends on the histones and epigenetic elements working together.

Eukaryotic cells have proteins called histones that serve two purposes. They help keep DNA compact and control the loosening and tightening of the DNA strands that control gene expression.

Epigenetic factors are substances that alter genes to control how they are expressed. Both changes are not inheritable and do not lead to mutations. These include transient changes such as DNA remodeling, methylation and alkylation.

The field of epigenetics deals with stable phenotypic changes that are not caused by changes in the DNA sequence. Epigenetics, a name derived from the Greek prefix epi-, refers to traits that are 'above' or 'additional' to the conventional genetic base.

learn more about Epigenetic visit brainly.com/question/29659855

#SPJ4

The pH of the solution is 4.64.

For the first part of the question:

The reaction that occurs between trimethylamine and trimethylammonium chloride can be written as:

(CH3)3N + H2O ⇌ (CH3)3NH+ + OH-

The equilibrium constant expression for this reaction is:

Kb = [ (CH3)3NH+ ][OH-] / [ (CH3)3N ]

We know the concentration of trimethylamine is 0.080 M and the concentration of trimethylammonium chloride is 0.13 M. Since the two compounds are in equilibrium, we can assume that the concentration of trimethylammonium ion ( (CH3)3NH+ ) is also 0.13 M.

Now we can use the Kb expression to find the concentration of hydroxide ions (OH-) in the solution:

Kb = [ (CH3)3NH+ ][OH-] / [ (CH3)3N ]
5.9 x 10^-5 = (0.13)(OH-) / 0.080
OH- = 1.16 x 10^-4 M

To find the pH, we need to find the concentration of hydrogen ions (H+) in the solution, which can be found using the equation:

Kw = [H+][OH-]
1.0 x 10^-14 = [H+](1.16 x 10^-4)
[H+] = 8.62 x 10^-11 M

pH = -log[H+] = 10.06

Therefore, the pH of the solution is 10.06.

For the second part of the question:

We know that acetic acid (CH3COOH) is a weak acid and sodium acetate (CH3COONa) is a salt of a weak acid and strong base. When the two are mixed together, they will react to form an equilibrium between acetic acid and acetate ion (CH3COO-):

CH3COOH + CH3COO- ⇌ H+ + CH3COO-

The equilibrium constant expression for this reaction is:

Ka = [H+][CH3COO-] / [CH3COOH]

We know the concentrations of acetic acid and sodium acetate, but we need to find the concentrations of hydrogen ions and acetate ions. To do this, we need to use the Henderson-Hasselbalch equation:

pH = pKa + log [base]/[acid]

where pKa is the dissociation constant of acetic acid, which is 4.76.

We can rearrange the equation to solve for [base]/[acid]:

[base]/[acid] = 10^(pH - pKa)

For this solution, we have:

[base]/[acid] = 10^(4.76 - pH)

For the base, we use the concentration of sodium acetate (since it is the salt of a weak acid and strong base, we can assume it completely dissociates in water):

[base] = 0.21 M

For the acid, we use the concentration of acetic acid:

[acid] = 0.16 M

Now we can plug in the values and solve for the pH:

[base]/[acid] = 10^(4.76 - pH)
0.21 / 0.16 = 10^(4.76 - pH)
1.3125 = 10^(4.76 - pH)
log(1.3125) = 4.76 - pH
pH = 4.76 - log(1.3125)
pH = 4.76 - 0.119
pH = 4.64

Learn More about here :-

https://brainly.com/question/30656928

#SPJ11

The \(PbCl_{2}\) dissolved when water was added in Step 10 because the concentrations of the ions decreased and the reaction shifted to the right to compensate.

When water is added to a system in equilibrium, it causes a change in the concentrations of the ions present.

In this case, the addition of water diluted the concentrations of \(Pb^{+2}\) and \(Cl^{-}\) ions, leading to a decrease in their concentrations.

According to Le Chatelier's Principle, when the concentration of the reactants or products changes, the system shifts in the direction that counteracts the change to re-establish equilibrium.

In this case, the decrease in ion concentrations caused the reaction to shift to the right, towards the products, in order to increase the concentrations of the ions and restore equilibrium.
The addition of water to the \(PbCl_{2}\) system caused the concentrations of \(Pb^{+2}\) and \(Cl^{-}\) ions to decrease, leading to a shift in the reaction towards the right to compensate for the change and re-establish equilibrium.

For more information on Le Chatelier's principle kindly visit to

https://brainly.com/question/29009512

#SPJ11

Answer:

No, light behaves as a Transverse Wave. All electromagnetic waves behave as transverse waves.

The number of hydrogen bonds between complementary G-C (guanine-cytosine) pairs is three.

In DNA, hydrogen bonding plays a crucial role in maintaining the stability and structure of the double helix. Guanine (G) and cytosine (C) are complementary base pairs, meaning they form specific hydrogen bond interactions with each other.

Guanine contains a hydrogen bond donor site (NH) and a hydrogen bond acceptor site (O) on its base, while cytosine has a hydrogen bond acceptor site (N) and a hydrogen bond donor site (H). These complementary functional groups allow for the formation of three hydrogen bonds between G and C.

One hydrogen bond forms between the NH group of guanine and the acceptor site of cytosine, while two hydrogen bonds form between the acceptor site of guanine and the NH and H groups of cytosine. These hydrogen bonds provide strength to the G-C base pairing and contribute to the overall stability of the DNA double helix structure.

To know more about the complementary functional groups refer here :

https://brainly.com/question/1356508#

#SPJ11

130 ppm will contain  0.12985167 grams of chlorine present in per liter of pool water.

This is an abbreviation for "parts per million" and it also can be expressed as milligrams per liter (mg/L).

1001.142303 ppm is equal to 1 g/L

So, 130 ppm will contain  \(\frac{130}{1001.142303}\) grams of chlorine present in per liter of pool water which is equal to 0.12985167 gram/L.

Learn more about ppm here:

https://brainly.com/question/2618749

#SPJ1

Answer:

The three parts of the cell theory are as follows: (1) All living things are made up of cells, (2) Cells are the smallest units (or most basic building blocks) of life, and (3) All cells come from preexisting cells through the process of cell division. ... Today, the cell theory is considered the foundation of biology.

Explanation:

hope this help.. brainliest???

Answer:

i wanna give brailiest to the person at the top!

Explanation:

10. The new pressure will be 1703 mmHg

11. The new volume will be 25 mL

12. The new volume will be 6767.3 mL

13i. The pressure (in mmHg) is 6826.38 mmHg

13ii. The pressure (in torr) is 6826.38 torr

13iii. The pressure (in atm) is 8.98 atm

The new pressure can be obtain as follow:

P₁V₁ = P₂V₂

655 × 325 = P₂ × 125

Divide both sides by 125

P₂ = (655 × 325) / 125

New pressure = 1703 mmHg

The new volume can be obtain as follow:

P₁V₁ = P₂V₂

1.5 × 75 = 4.5 × V₂

Divide both side by 4.5

V₂ = (1.5 × 75) / 4.5

New volume = 25 mL

The new volume can be obtain as follow:

P₁V₁ = P₂V₂

760 × 1024 = 115 × V₂

Divide both side by 115

V₂ = (760 × 1024) / 115

New volume = 6767.3 mL

i. The pressure in mmHg can be obtain as follow:

1 psi = 51.715 mmHg

Therefore,

132 psi = (132 psi × 51.715 mmHg) / 1 psi

132 psi = 6826.38 mmHg

Thus, the pressure (in mmHg) is 6826.38 mmHg

ii. The pressure in torr can be obtain as follow:

1 psi = 51.715 torr

Therefore,

132 psi = (132 psi × 51.715 torr) / 1 psi

132 psi = 6826.38 torr

Thus, the pressure (in torr) is 6826.38 torr

iii. The pressure in atm can be obtain as follow:

14.696 psi = 1 atm

Therefore,

132 psi = (132 psi × 1 atm) / 14.696 psi

132 psi = 8.98 atm

Thus, the pressure (in atm) is 8.98 atm

Learn more about pressure:

https://brainly.com/question/15343985

#SPJ1

In general, the formation of a chemical bond lowers the potential energy of a chemical system, leading to a more stable arrangement.

Stored energy depends upon the relative position of various parts of a system.

In bond formation, atoms lose their potential energy to attain stability and heat is evolved. The bond formation is an exothermic reaction.

Atoms bond together to form compounds to attain lower energies than they possess as individual atoms.

A quantity of energy is equal to the difference between the energies of the bonded atoms and the energies of the broken atoms.

Learn more about the potential energy here:

https://brainly.com/question/24284560

#SPJ1

Answer:

particles

Explanation:

oof oof oof oof oof oof oof

Total pressure = 4.9 atm

Partial pressure of neon =  3.4 atm

Partial pressure of oxygen = 1.5 atm

We know that the partial pressure could be obtained as the product of the mole fraction and the total pressure thus we have to obtain the total pressure by the use of the partial pressures.

For the number of moles of helium;

P = 101.3 kPa or 0.99 atm

T =  25ºC or 298 K

V =  27 L

n = PV/RT = 0.99 atm * 27 L/0.082 *  298 K = 26.73/24.44 = 1.1 moles

Number of moles of oxygen

P = 101.3 kPa or 0.99 atm

T =  25ºC or 298 K

V =  12 L

n = PV/RT = 0.99 atm * 12 L/0.082 *  298 K =11.88 /24.44 = 0.5 moles

Total number of moles = 1.1 moles + 0.5 moles = 1.6 moles

Total pressure is obtained from;

nRT/V

= 1.6 moles * 0.082 * 298/8

= 4.9 atm

Partial pressure of neon = 1.1 moles/1.6 moles * 4.9 atm = 3.4 atm

Partial pressure of oxygen = 0.5 moles/1.6 moles * 4.9 atm = 1.5 atm

Learn more about partial pressure:https://brainly.com/question/13199169

#SPJ1

The molecular formula of the compound with a known molecular weight of 58.1 g/mol cannot be determined with just this information.

The molecular weight of a compound can be calculated by summing the atomic weights of all the atoms present in the molecule. However, the molecular weight alone does not provide information about the specific types or numbers of atoms in the compound.

Therefore, more information is needed, such as the elemental composition of the compound, to determine its molecular formula.

To know more about molecular visit:

https://brainly.com/question/156574

#SPJ11

From the balanced chemical equation of a reaction we can clearly understand the reactants and products in a reaction as well as their stoichiometric ratio in the reaction.

The  chemical equation of a reaction is representing the combination of reactants to form the products. The molecular formula of compounds are used to express them.

Here, the reaction between sodium carbonate and vinegar produces sodium acetate, water and carbon dioxide. The reaction can be easily understood by the evolution of carbon dioxide gases.

So, when we pour vinegar to baking soda, we will observe an effervescence or bubbles of a gas. That gas is carbon dioxide that is clear from the chemical equation.

Find more on chemical equations:

https://brainly.com/question/28294176

#SPJ1

Consider the hydrate calcium chloride dihydrate hydrogen atoms are in the compound are four

Hydrate calcium chloride dihydrate is the excellent water soluble crystalline calcium sources used compatible with chloride and chloride compounds can conduct electricity when fused or dissolved in water and here given compound is CaCl₂ × 2H₂O

So in that compound the hydrogen atom are four because this compound or this equation is balanced so in that compound four hydrogen atom are present

Know more about hydrogen

https://brainly.com/question/13954550

#SPJ1

Answer:

4

Explanation: