Calculate the pH of a 0.30 M solution of sodium benzoate (NaC6H5COO) given that the Ka of benzoic acid (C6H5COOH) is 6.50 x 10-5.



Please show steps on the solution.

The particles in the solution can be separated from heterogeneous mixtures by passing the mixture through a filter (option b).

The particles in the solution can be separated by using different types of methods such as for example a filter that is able to separate particles depending on their size or net charge.

Therefore, with this data, we can see that particles in the solution can be separated depending on their sizes, electrical charges, etc, and for that purpose, we can use a filter of any other type of method.

Learn more about the separation of particles here:

https://brainly.com/question/13955511

#SPJ1

Answer:

Yes they are..... Both are the names of the same thing

Answer:

4383.28 g

Explanation:

First we'll need to convert molecules into moles, we can do so using Avogadro's number:

Then we will convert 99.62 moles of carbon dioxide (CO₂) into grams, using its molar mass:

The mineral that's illustrated based on the information given will be magnetite.

A mineral simply means any pure substance that has a unique composition and structure.

Since the mineral is black and will stick to you when you walk through the sand at the beach, it's magnetite.

Learn more about mineral on:

brainly.com/question/15844293

#SPJ12

Answer:

A. can travel through empty space

Explanation:

it is said dat electro magnetic waves or radiation travels through the vacuum of space

Answer:

all of the above. Because, Y'know, electromagnetic radiation is like that.

Answer:

P4O10 + 6 H2O → 4 H3PO4

Explanation:

Answer:

Agree

Explanation:

There are many things that we use in everyday life that contain chemicals that are harmful to us. An example of this would be chemicals found in cleaning products

The standard free energy change is directly proportional to the natural logarithm of K.

The standard free energy change (ΔG°) is a thermodynamic parameter that measures the potential for a chemical reaction to occur under standard conditions. It is related to the equilibrium constant (K) of the reaction. The main answer states that the standard free energy change is directly proportional to the natural logarithm of K.

To understand this relationship, we need to consider the equation that relates ΔG° and K:

ΔG° = -RT ln K

In this equation, R is the gas constant and T is the temperature. The natural logarithm of K (ln K) appears in the equation. The negative sign indicates an inverse relationship between ΔG° and ln K. Therefore, as ln K increases, ΔG° decreases, and vice versa. This means that if the equilibrium constant K increases, indicating a shift towards the products, the standard free energy change will decrease.

The natural logarithm is used because it simplifies the mathematical relationship between ΔG° and K. It allows for a linear relationship, making it easier to analyze and compare different reactions.

Learn more about thermodynamic parameter

brainly.com/question/33302876

#SPJ11

The compound with atoms that have an incomplete octet is BF3.The correct answer is a.

An octet is a set of eight electrons in the outermost shell of an atom. Noble gases have an octet of electrons in their outermost shells, making them stable. Other elements aim to reach this stable state by either losing or gaining electrons. When they do this, they form ions.

In some cases, however, elements may share electrons to achieve an octet. This is called covalent bonding. In a covalent bond, atoms share valence electrons to reach the stable octet configuration.BF3 is an example of a compound that has atoms with an incomplete octet.

In BF3, boron has only six electrons in its outermost shell. This means that it cannot form an octet on its own. However, by sharing three electrons with three fluorine atoms, boron is able to achieve a stable configuration, even if it does not have a complete octet.

In contrast, the other compounds listed in the question all have atoms that have a complete octet or an expanded octet. For example, CO and CO2 both have atoms with a complete octet. ICl5 and Cl2 both have atoms with an expanded octet. Only BF3 has atoms with an incomplete octet.

Learn more about covalent bonding here:

brainly.com/question/19382448

#SPJ11

Soil salinization occurs when the soil becomes too high in salt content, which can be harmful to plants. This can happen due to a variety of factors, including irrigation with salty water, natural salt deposits in the soil, or high levels of salt in the air.

One solution to prevent soil salinization is to use irrigation techniques that minimize the amount of salt that is introduced to the soil. For example, drip irrigation and other low-volume irrigation methods can help to reduce the amount of salt that is applied to the soil. Another solution is to use a soil amendment, such as gypsum, to help remove excess salt from the soil.

One disadvantage of using a soil amendment to remediate soil salinization is that it can be expensive to apply. Additionally, it may not be effective in all cases, depending on the specific cause of the soil salinization and the type of soil.

To know more about Soil Salinization visit :

https://brainly.com/question/27588666?referrer=searchResults

#SPJ4

Answer:

b. the mass of an electron.

Explanation:

When a nucleus emits an alpha particle, the mass number of the nucleus decreases, and its atomic number also decreases.

Therefore, the correct answer is: (c). The mass number decreases and its atomic number increases.

The nuclei are incredibly tiny and dense. They are 10 thousand times smaller than an atom and have more than 99.9% of its mass! Protons, which have a positive charge, and neutrons, which have no electrical charge, make up the nucleus.

When a nucleus emits an alpha particle, the mass number of the nucleus decreases, and its atomic number also decreases.

An alpha particle is composed of two protons and two neutrons, which is equivalent to a helium nucleus (He²⁺). When an alpha particle is emitted from a nucleus, the mass number decreases by 4 (as the alpha particle has a mass of 4 atomic mass units) and the atomic number decreases by 2 (since the nucleus loses two protons).

Therefore, the correct answer is:

c. The mass number decreases and its atomic number increases.

To know more about alpha particle:

https://brainly.com/question/24276675

#SPJ4

Substance C is a solid solute according to the solubility curve. So option B is correct.

Solubility is the maximum solubility that a solute can have in a 100 g solvent at a specific temperature. Solubility curves are plots of the temperature and the solubility value of a specific solute.

The curve of solubility is a curved line on a graph that indicates the relationship between temperature and solubility for a given substance at different temperatures. The graph of the relationship of solubility to temperature is called the Solubility curve. Most solubility curves are sigmoidal, meaning that the peak solubility occurs at the inflection point.

To learn more about the solubility curve, refer to the link:

https://brainly.com/question/9824349

#SPJ1

The second law of thermodynamics states that the total entropy of an isolated system always increases over time. Life doesn't violate the second law of thermodynamics because it is not an isolated system.

It interacts with its environment, which allows it to decrease its own entropy while increasing the entropy of its surroundings.Explanation:Life is a self-organizing system that must consume energy and reduce entropy to maintain its organization. Organisms consume energy in the form of food and sunlight, breaking down the energy-rich molecules they contain and using the resulting energy to power their metabolic processes.

During these processes, some of the energy is lost as heat, increasing the entropy of the system.However, life can also create order and decrease entropy by organizing matter into complex structures and maintaining them. This requires a continuous input of energy to sustain the system.

Therefore, the apparent violation of the second law of thermodynamics by living organisms is merely an illusion because life is not a closed system, and it is constantly interacting with its environment to maintain its organization while increasing the entropy of its surroundings.

To know more about second law of thermodynamics visit:

https://brainly.com/question/7206767

#SPJ11

An unknown mixture is set in beaker on the teacher's table the five different parts of the mixture and we can separate it by method evaporation, distillation, sedimentation, and filtration

Mixture is the composed of one or more pure substances in varying compositions called as mixture and unknown mixture is separated by  shake the separatory funnel to allow intimate mixing of the solutions and effect extraction of the compound from the organic mixture and mixture can be physically separated by sedimentation process, filtration, crystallization, distillation, diffusion, panning, magnetic separation, and adsorption are a few of the methods used to separate materials and the substance is said to be pure when a sample of it has purified all other type of material

Know more about separation technique

https://brainly.com/question/28889067

#SPJ1

Answer:

The 5th electron can be placed at either the 12, 9, 3, or 6 O'clock locations

Explanation:

The steps to writing the Lewis symbol of an atom includes;

1) The number of valence electrons for the element is determined based on the position of the element on the periodic table which arranges the elements in groups depending on their valency electrons

2) Place dots one at a time, at the top bottom , left and right of the chemical symbol of the element, with a maximum of 4 dots, in the order of your choice

However, ensure that elements with less than four valence electrons have the electrons placed at the above described locations, with a maximum of one in each location

3) Where the valence electrons are more than 4, the extra electrons are again shared in the four locations to form a pair with the previous four dots

Therefore, whereby the element has 5 valence electrons as in the question, the fifth electron can either be at the top, left, right or bottom locations, corresponding to a 12, 9, 3, or 6 O'clock locations.

Cis- and trans-2-butene can both be hydrogenated to butane; thus their energies can be compared. the trans isomer releases less energy upon hydrogenation therefore cis-2-butene higher in energy.

The process of addition of hydrogen atom to another compound in the presence of catalyst such as nickel, cobalt etc. is termed as hydrogenation process.

As in trans- isomer, similar atoms or group of atoms are on opposite side. Due to which there is less repulsion between the atoms which results in more stability of trans isomer. On the other hand in cis- isomer, similar atoms or group of atoms are on same side, due to which there is more repulsion between the atoms which results in less stability of cis-isomer.

Due to more stability of trans- isomer less energy is released to add hydrogen to the trans butene as compared to cis butene for the formation of butane.

Thus we concluded that the trans isomer releases less energy than cis isomer in hydrogenation process.

learn more about hydrogenation:

https://brainly.com/question/10150087

#SPJ4

The solubility product (Ksp) of the salt given in question is 1.6x10^-9.

What is solubility product?

The equilibrium constant for a solid material dissolving in an aqueous solution is the solubility product constant, Ksp. It stands for the degree of solute dissolution in solution. A substance's Ksp value increases with how soluble it is.

Suppose we have reaction:

aA(s)↽⇀cC(aq)+dD(aq)

So, the formula to determine solubility product will be:

\(K_{sp} = [C]^c[D]^d\)

Let S mol/L be the solubility of salt. So,

\(S = [BaSo_4] = [Ba^{2+}] = [So_4^{2-}]\)

\(S = 4.0\times10^{-5}\)

we know that,

\(K_{sp} = [C]^c[D]^d = S\times S\)

\(K_sp = (4.0\times10^{-5}) \times (4.0\times10^{-5})\)

\(K_sp = 1.6 \times 10^{-9}\)

Hence, the solubility product is \(1.6 \times 10^{-9}\).

To know more about solubility product, go to link

https://brainly.com/question/9807304

#SPJ9

Answer:

He could separate the mixture through filtration and fractional crystallization. Ethanol can also be added in order to remove salt.

The combustion reaction is the process by which a chemical substance or hydrocarbon reacts with oxygen to produce carbon dioxide and water while also releasing energy in the form of light and heat.

For more information on combustion reaction kindly visit to

https://brainly.com/question/12172040

#SPJ1

Answer:

Hormones help regulate many bodily processes, such as appetite, sleep, and growth. Sex hormones are those that play an essential role in sexual development and reproduction. The main glands that produce sex hormones are the adrenal glands and the gonads, which include the ovaries in females and testes in males

Explanation:

Answer:

S

Explanation:

The symbol for entropy is S, and a change in entropy is shown as “delta” S or ΔS. If the entropy of a system increases, ΔS is positive. If the entropy of a system decreases, ΔS is negative.

Answer:

the nucleoid

Explanation:

I) Combine physically in no specific proportions.

II) Can be classified as homogenous or heterogeneous.

IV) Can only be an element or a compound.

following is correct about a mixture -  I, II and IV.

What is a chemical mixture?

In chemistry, a mixture is a substance made up of two or more chemicals that are not chemically related to one another. A mixture is the physical amalgamation of two or more components. A mixture, which might be in the form of solutions, suspensions, or colloids, maintains the chemical identity of the constituents. The two components are evenly distributed throughout a homogeneous mixture, and there is no discernible boundary separating them. There is a distinct boundary between the two substances in a heterogeneous mixture.

To know more about chemical mixture, refer:-

https://brainly.in/question/38105966

SPJ1

Answer:

hair redox reaction occurs so that is why they rearrange is well as they loss and gain of electron

Answer: not sure either. not sure what exactly your asking because the wording is weird. (no offense)