calculate the ph of a buffer solution prepared by mixing 30.00 ml of 5.0% acetic acid with 10.00 ml of 0.5000 m naoh.

The dog would cool down by the process of Homeostasis.

We can define Homeostasis as the control of the internal environment. We know that the body does have systems that have the job of self regulation. These parts of the body are able to increase or decrease the secretion of certain chemical substances.

Now if we have a dog that is sweating, this is a response to the fact that the dog is too hot and it has caused several of the systems in the body to work together to cool the dog down by the process of homeostasis.

Learn more about Homeostasis:https://brainly.com/question/3888340

#SPJ1

Answer:

When hydrochloric acid comes into contact with calcium carbonate, the following chemical reaction ensues: CaCO3 + 2HCl → CaCl + CO2 + H2O, which provides acid neutralization alongside the formation of byproducts

Answer:

C) liquid

Explanation:

edge 2023

Answer:

.8°c my fingers jfjfjkfkrhrb

the half-reactions

cathode : Zn²⁺ (aq) + 2e⁻ ---> Zn (s)  

anode : Mg (s) → Mg²⁺ (aq) + 2e−

a balanced cell reaction

Zn²⁺(aq) + Mg(s)→ Zn(s) + Mg²⁺ (aq)

Given

Zn and Mg electrodes

Required

The half-reactions for a galvanic cell

Solution

To determine the reaction of a voltaic cell, we must determine the metal that serves as the anode and the metal that serves as the cathode.

To determine this, we can either know from the standard potential value of the cell or use the voltaic series

1. voltaic series

Li-K-Ba-Ca-Na-Mg-Al-Mn- (H2O) -Zn-Cr-Fe-Cd-Co-Ni-Sn-Pb- (H) -Cu-Hg-Ag-Pt-Au

The more to the left, the metal is more reactive (easily release electrons) and the stronger reducing agent

So the metal on the left will easily undergo oxidation and function as anode

Since Mg is located to the left of Zn, then Mg functions as anode and Zn as a cathode

2. Standard potentials cell of Mg and Zn metals :

Mg2+ + 2e– → Mg E° = -2,35 V

Zn2+ + 2e– → Zn E° = -0,78 V

The anode has a smaller E°, then Mg is the anode and Zn is the cathode.

Answer:

Explanation:help

The sample of helium gas must be cooled to approximately -220°C to reduce its volume from 5.9 L to 0.2 L at constant pressure.

According to the ideal gas law, the relationship between the volume (V), temperature (T), and pressure (P) of a gas can be expressed as PV = nRT, where n is the number of moles of the gas and R is the ideal gas constant. In this case, the pressure is constant, so we can simplify the equation to V/T = constant.

To find the final temperature required to reduce the volume from 5.9 L to 0.2 L, we can set up the following ratio:

(V1 / T1) = (V2 / T2)

Where V1 is the initial volume (5.9 L), T1 is the initial temperature (119°C + 273.15 = 392.15 K), V2 is the final volume (0.2 L), and T2 is the final temperature that we need to find.

Rearranging the equation, we have:

T2 = (V2 / V1) * T1

= (0.2 L / 5.9 L) * 392.15 K

≈ 13.28 K

Converting 13.28 K back to Celsius, we get:

T2 ≈ -259.87°C

Therefore, the sample of helium gas must be cooled to approximately -220°C (or -259.87°C) to reduce its volume from 5.9 L to 0.2 L at constant pressure.

The question should be:

To what temperature must a sample of helium gas be cooled from 119°C to reduce its volume from 5.9 L to 0.2 L at constant pressure?

To learn more about ideal gas law, Visit:

https://brainly.com/question/27870704

#SPJ11

Answer:

The pressure of gas in kilopascals is 55.9

Explanation:

variables given :

volume

temperature

moles  

unknown variables :

pressure

Select the correct algebraic form for the equation to be used for this calculation.

p= nRT/V

Solve the problem for the pressure of oxygen.

Answer:

The reaction that is occurring in this question is:

H2 + I2 -> 2 HI

As we can see, the molar ratio for H2 and I2 is 1:1, one mole of H2 for each mole of I2, and the molar ratio between any reactant and HI is 1:2, which means the number of moles of product will be two times more than the number of moles of the reactants

We have:

3.0 moles of H2

2.0 moles of I2

1.0 moles of HI

According to the molar ratio, we should have the name number of moles of I2 and H2, which means that H2 is in excess and I2 is the limiting reactant with 2 moles

If we have 2 moles of I2, and the molar ratio of I2 and HI is 1:2, we should have 4 moles of HI being produced

Therefore the theoretical number of moles is 4.0 moles of HI from 2.0 moles of I2

The magnitude of the average emf induced in the coil during the 0.34 s is 0.318 V.

The emf induced in a coil is given by Faraday's law of electromagnetic induction, which states that the emf is equal to the rate of change of magnetic flux through the coil.

The maximum flux goes through the coil when it is oriented perpendicular to the magnetic field. Therefore, the maximum flux through the coil is given by:

Φmax = B A

where B is the magnetic field strength, A is the area of the coil, and Φmax is the maximum flux through the coil.

Substituting the given values,  have:

Φmax = (0.047 T) (0.23 m²) = 0.01081 Wb

When the coil is rotated, the flux through it changes from the maximum value to zero in 0.34 s. The rate of change of flux is therefore:

dΦ/dt = -Φmax/t

where t is the time taken for the flux to change from Φmax to zero.

Substituting the given values,  have:

dΦ/dt = -(0.01081 Wb) / (0.34 s) = -0.0318 Wb/s

The negative sign indicates that the flux is decreasing with time.

Finally, the emf induced in the coil is given by:

emf = -N dΦ/dt

where N is the number of turns in the coil. Since there are 10 turns in the coil,  have:

emf = -(10) (-0.0318 Wb/s) = 0.318 V

Therefore, the magnitude of the average emf induced in the coil during the 0.34 s is 0.318 V.

To know more about emf

https://brainly.com/question/15121836

#SPJ4

A basic amino acid has an R group that contains ( D) a carboxyl group.

Acid is a substance that has a pH level of lower than 7.0 and is capable of corroding or dissolving other substances. It is usually found in aqueous solutions and is a highly reactive substance. Examples of acid include sulfuric acid, hydrochloric acid, nitric acid and acetic acid. These are used in a variety of industries such as food production, industrial cleaning and chemical engineering. Acid is also used in the laboratory for titrations, pH testing and other experiments. Acids can be dangerous if mishandled and can cause skin, eye and respiratory irritation and even chemical burns.

To learn more about acid

https://brainly.com/question/26855500

#SPJ1

Answer:

they are seed producing so can populate more areas

The compounds that would end in  "-ide" are;

1) Na₂S

2) CO2

3) AIP

We know that chemical compounds can be identified by the name of the compound. Also, the name of the compound reflects the kind of species that we have in the compound. The task that we have here is that we need to find out the three compounds that would have the ending  "-ide" in their names.

We have to know that the names of chemical compounds are often chosen by the International Union of Pure and Applied Chemistry (IUPAC). These rules are revised from time to time and are thus updated in order to help us to identify compounds.

It is important to note that the compounds whose names are most likely to end in the term  "-ide" would be the binary compounds that are composed of the metals and the non metals.

Learn more about IUPAC names:https://brainly.com/question/16631447

#SPJ1

Answer:

ABintense pressure and breathin

Explanation:

because scientist never have the tech to go deeper

Answer:

B. Problems with breathing

C. Intense pressure

The amount of water  that is produced is 3.46 moles of water.

We have to note that we have to apply the stoichiometry of the reaction so that we can be able to get the amount of the water that can be produced in the reaction.

We know that the reaction is; 2H2 + O2 ---->2H2O

Number of moles of the oxygen = 55.44 grams/32 g/mol

= 1.73 moles

If 1 mole of oxygen produces 2 moles of water

1.73 moles of oxygen would produce 1.73 * 2/1

= 3.46 moles of water.

Learn more about moles:https://brainly.com/question/20486415

#SPJ1

A)1.75×3 moles of carbon monoxide

B)2:3

A)each mole of ferric oxide requires 3 moles of carbon monoxide. Therefore 1.75 moles requires 1.75 ×3 moles of carbon monoxide

The solution to a major erosion or deposition issue on a school campus

Erosion is known to be a term that connote when materials, such as soil or rocks, are said to be taken or transferred by wind or water.

Note that Deposition is said to be the process by which those sediments taken by erosion are said to be deposited, or dropped at , a different location.

Note that Erosion and deposition are constantly occurring since wind and water can easily make materials to move to different places. Hence

The solution to a major erosion or deposition issue on a school campus

Learn more about erosion from

https://brainly.com/question/17905503

#SPJ1

Answer:

yes it chemical to electrical to radiant energy

Explanation:

correct

Answer:

677

Explanation:

All of the statements are true

An old sandwich going bad in the garbage and baking an apple pie are two examples of chemical reactions, which they both share.

Baking soda and vinegar producing carbon dioxide, iron rusting, and wood burning are a few examples of chemical changes. The metabolization of food and the production of amylase from the combining of sugar and saliva are only two examples of the many chemical processes that the body produces.

A chemical change occurs when the molecules that make up two or more compounds are rearrange to form a new substance. When you bake, you start with a range of ingredients.

To know more about chemical reactions visit:-

https://brainly.com/question/29039149

#SPJ1

Answer:

The common application of indicators is the detection of end points of titrations. The colour of an indicator alters when the acidity or the oxidizing strength of the solution, or the concentration of a certain chemical species, reaches a critical range of values.

Answer:

44 neutrons

Explanation:

To find the neutrons of an atom subtract the atomic number from the mass of the atom

in this case

80-36=44

tge number of neutrons that are in that atom is 48

With respect to bonding and electrical conductivity, respectively, sulfur hexafluoride, sf6(g), would be described as "covalent and a nonconductor" because sulfur hexafluoride would be a covalent compound since neither fluorine nor sulfur are metallic elements and aqueous solutions containing covalent bonding do not conduct electricity.

The ability of an electrical charges or heat to move through a material is measured by its conductivity. A material is considered a conductor if it offers relatively minimal resistance to the transfer of thermal or electric energy.

The electricity is conducted by-

To know more about the Electrical conductivity, here

https://brainly.com/question/902006

#SPJ4

Explanation:

hope it make sense to u :)

Based on the data table, my conclusion is  that increasing the amount of salt in water leads to a decrease in the freezing temperature of water.

As the amount of salt added to the water increases, the freezing temperature decreases. This relationship can be supported by the trend seen in the data which shows the freezing temperature of the water decreasing as more salt is added.

Temperature is described as a physical quantity that expresses quantitatively the perceptions of hotness and coldness.

We have seen the effect of increasing the amount of salt in water on the freezing temperature of the water  leading to a decrease in the freezing temperature of water.

Learn  more about freezing temperature  at:

https://brainly.com/question/24314907

#SPJ1

A Scientist test a small section of a carrot root to determine the type of molecules were present. the results showed that the molecule contained carbon , hydrogen , and oxygen . the option d is correct (d) both (a) and (c)

(a)the molecule are a type of carbohydrate (c) the carrot contains some type of sugar.

Carrot is one of the important root vegetable rich in bioactive compounds. carbohydrates are made up of carbon , hydrogen and oxygen. carbohydrates are sugar molecules. The main three carbohydrates : sugar , starches and fiber. The carrot vegetable we eat is the taproot of carrot plant. The sucrose is major transport and storage sugar but it convert into starch. Carbohydrates provides energy for living things.

Thus, A Scientist test a small section of a carrot root to determine the type of molecules were present. the results showed that the molecule contained carbon , hydrogen , and oxygen . the option d is correct (d) both (a) and( c)

(a)the molecule are a type of carbohydrate

(c) the carrot contains some type of sugar.

To learn more about carbohydrate here

https://brainly.com/question/14614055

#SPJ1

Answer:

Oil and vinegar separate because it is a suspension

Explanation:

When you let suspensions sit the particles begin to layer out, in the salad dressing the oil layers out on top of the vinegar. The two layers of oil and vinegar don't actually dissolve in each other. The layer with the lower density (oil) floats on top of the layer with a higher density (vinegar)

Water and vinegar are both hydrophilic and mix, whereas the oil is hydrophobic. Oil and vinegar separate because it is a suspension

Hydrophilic molecule are water-loving polar molecule.

They interact with water or they are dissolved in water or water like polar solvent.

For instance, the phospholipid molecules of the plasma membrane has a hydrophilic phosphate group.

Hydrophobic is a water hating  substance which can not dissolve in water, but other non-polar solvent.

Thus hydrophobic substances are lipophilic in nature  and the hydrophobic solvents are used to  separate water-immiscible substances from water.

The layers of oil and vinegar can not  dissolve with each other. The oil layer has the  lower density floats on top of the layer with a higher density product called vinegar.

Learn more about hydrophilic molecule, here:

https://brainly.com/question/4692308

#SPJ2

Answer:

A. it contains a lot of matter

An aqueous solution of sodium bisulfate (NaHSO4) is acidic. Sodium bisulfate dissociates in water to form the bisulfate ion (HSO4-) and the sodium ion (Na+). This reaction can be represented by the following chemical equation:

NaHSO4 (s) → Na+ (aq) + HSO4- (aq)

The bisulfate ion is a weak acid, and it dissociates further in water to form the sulfate ion (\(SO4^{2-}\)) and the hydrogen ion (H+):

HSO4- (aq) → H+ (aq) + SO42- (aq)

This additional dissociation of HSO4- increases the concentration of H+ ions in the solution, making the solution acidic. The presence of H+ ions in the solution means that the solution has a pH of less than 7, which is the definition of an acidic solution.

What is an aqueous solution?

An aqueous solution is a sort of mixture in which one or more solutes have been dissolved in water as the solvent. Any kind of material, including salts, acids, bases, and sugars, can serve as solutes. The word "aqueous" describes a solution's water content. These kinds of solutions are prevalent in biology and chemistry and are essential to numerous industrial and natural processes.

An aqueous solution is one in which water serves as the solvent. In chemical equations, it is often represented by adding to the appropriate chemical formula. For instance, Na⁺ + Cl⁻ might be used to depict a solution of table salt, or sodium chloride, in water.

Water, which makes up around 70% of the mass of the human body and is necessary for life, serves as the solvent in aqueous solutions.

To know more about an aqueous solution, check out:

https://brainly.com/question/28166001

SPJ1

The percent yield for this reaction is 50.8%.

First, we need to determine the moles of p-phenetidine used:

Moles of p-phenetidine = mass / molar mass

Moles of p-phenetidine = 6.48 g / 137.18 g/mol

Moles of p-phenetidine = 0.0472 mol

Since p-phenetidine is the limiting reagent, the moles of acetophenetidin produced should be equal to the moles of p-phenetidine used.

The theoretical yield of acetophenetidin can be calculated using the stoichiometry of the reaction:

Theoretical yield = Moles of p-phenetidine × (molar mass of acetophenetidin / molar mass of p-phenetidine)

Theoretical yield = 0.0472 mol × (179.22 g/mol / 137.18 g/mol)

Theoretical yield = 0.0616 mol

Now we can calculate the percent yield:

Percent yield = (actual yield / theoretical yield) × 100

Percent yield = (5.72 g / (0.0616 mol × 179.22 g/mol)) × 100

Percent yield = (5.72 g / 11.2512 g) × 100

Percent yield = 50.8%

Therefore, the percent yield for this reaction is 50.8%.

Learn more about  reaction here

https://brainly.com/question/16737295

#SPJ11