Find the pH during the titration of 20.00 mL of 0.1000 M triethylamine, (CH₃CH₂)₃N (Kb = 5.2X10⁻⁴), with 0.1000 M HCl solution after the following additions of titrant:(d) 19.00 mL

Gaseous argon to liquid to solid can be achieved by increasing the pressure or decreasing the temperature until it liquifies, then keep going until it solidifies.

This is referred to as the degree of hotness or coldness of a substance and it is influenced by thermal energy with unit being in Kelvin.

A gaseous argon can be converted into different phases such as liquid and solid by increasing the pressure or decreasing the temperature until it liquifies, then this process should be continued until it solidifies according to the degree being wanted thereby making it the correct choice.

Read more about Temperature here https://brainly.com/question/25677592

#SPJ1

Based on the periodic table, the element that is most reactive is Na.

The correct option is A.

Reactivity is a gauge of an element's propensity to create compounds with other elements. While certain elements require energy to react and are inert, others will do so simply and spontaneously. Reactivity is a gauge of an element's propensity to create compounds with other elements.

Reactive elements are the Group 1 and Group 2 metals. Also, the Group 17 and Group 16 non-metals are reactive non-metals.

Group 1 and Group 2 metals form positive ions easily by electron loss. Group 17 and Group 16 non-metals form negative ions by electron gain.

Learn more about reactive elements at: https://brainly.com/question/25380167

#SPJ1

To solve this question we will assume that the moles of gas do not change and that the gas behaves like an ideal gas.

For an ideal gas we have that its behavior will be according to the following equation:

Where,

P is the pressure of the gas, in atm

V is the volume of the gas, in liters

n are the moles of the gas

T is the temperature of the gas, in Kelvin

R is a constant, 0.08206 atm.L/mol.K

We have for this gas two states, an initial state (1) and a final state (2), so for each state we can apply the ideal gas law, we will have:

Initial state:

Final state:

Since nR are constants, we can equate both equations:

For each state the conditions of pressure, volume and temperature will be:

P1=1.00atm

V1=195mL = 0.195L

T1=20°c = 293.15K

P2= 600mmHg=0.79atm

T2=60°C=333.15K

V2=Unknown

We clear V2 and replace the known data:

Answer: The final volume of the gas will be 280mL

Answer:

1. Is 3

2. Is evaporation

3. I don't really understand it

Answer:. 1

Explanation:

The question that is relevant to the student's concerns about the security of sharing digital information online is C, "What is the password policy for the service?"

Knowing the password policy for the cloud storage service is important because it can affect the level of security for the student's photos. A strong password policy can help prevent unauthorized access to the stored photos. In addition, the student should consider whether the service offers two-factor authentication or encryption of stored data, as these features can further enhance security.

While the monthly cost, storage limit, and upload speed are important factors to consider, they are not directly related to the security of the stored photos.

Find out more on Cloud storage here: https://brainly.com/question/18709099

#SPJ1

Answer:

The periodic table is a tabular array of the chemical elements organized by atomic number, from the element with the lowest atomic number, hydrogen, to the element with the highest atomic number, oganesson. The atomic number of an element is the number of protons in the nucleus of an atom of that element.

Hydroxide relaxers remove a sulfur atom from a disulfide bond, converting it into a(n) lanthionine bond.

Hydroxide relaxers work by breaking disulfide bonds in the hair's protein structure, which results in the hair becoming less curly and more relaxed. When a sulfur atom is removed from the disulfide bond, a new bond called a lanthionine bond is formed.

During the process of relaxing hair, the hydroxide relaxer chemically alters the hair's protein structure. The disulfide bonds, which give the hair its natural curl, are broken down by the hydroxide ions. When a sulfur atom is removed, the remaining bond between two cysteine amino acids is called a lanthionine bond. This new bond results in a weaker, more relaxed hair structure.

To know more about lanthionine bond visit:

brainly.com/question/14564698

#SPJ11

Answer:

LiOH

Explanation:

LiOH has the tag "aq" which stands for aquatic.

Our answer is LiOH.

Answer:b

Explanation:

i took the test

Kb1 = 1.61 × 10^-10 and Kb2 = 4.35 × 10^-9. The basicity constant, or Kb, is a measure of the strength of a base in a particular chemical reaction. The products of a reaction of a weak base and water with the corresponding acid determine the base constant.

For example, for a given acid and base, Kb1 and Kb2 are the basicity constants for the first and second base dissociations, respectively, of the base. The formulas and charges of the conjugate acid and base, as well as the acid dissociation constants, Ka1 and Ka2, are needed to calculate Kb1 and Kb2.

The following reactions are balanced chemical reactions that represent the dissociation of succinic acid:

Reaction 1: H2C4H4O4(aq) + H2O(l) ⇌ HC4H4O4(aq) + H3O+(aq) Ka1 = 6.2 × 10−5
Reaction 2: HC4H4O4(aq) + H2O(l) ⇌ C4H4O42-(aq) + H3O+(aq) Ka2 = 2.3 × 10−6

The values of Ka1 and Ka2 can be used to calculate Kb1 and Kb2, respectively, using the following equation:

Ka1 × Kb1 = Kw

where Kw is the ion-product constant for water, which is 1.0 × 10−14 at 25°C.

Kb1 can be calculated as follows:

Kw = Ka1 × Kb1

Kb1 = Kw / Ka1

Kw = 1.0 × 10^-14

Ka1 = 6.2 × 10^-5

Kb1 = Kw / Ka1

Kb1 = 1.0 × 10^-14 / 6.2 × 10^-5

Kb1 = 1.61 × 10^-10

Kb2 can be calculated using the same method:

Kw = Ka2 × Kb2

Kb2 = Kw / Ka2

Kw = 1.0 × 10^-14

Ka2 = 2.3 × 10^-6

Kb2 = Kw / Ka2

Kb2 = 1.0 × 10^-14 / 2.3 × 10^-6

Kb2 = 4.35 × 10^-9

Therefore, Kb1 = 1.61 × 10^-10 and Kb2 = 4.35 × 10^-9.

To learn more about basic visit;

https://brainly.com/question/31939284

#SPJ11

Answer:I believe it forced convections

Explanation:convection is the circular motion that happens when warmer air or liquid makes something less dense.

Answer:

how y'all doinnn

Explanation:

byyeee

A gas with a pressure of 10.0 Pa exerts a force of 5.5 N on a surface of 5.5 m².

Option a is correct .

The formula for calculating the force exerted by the gas is as follows:

 F = W x H

 where F is  force, P is  pressure, and A is  area.

Substituting the given values ​​we get:

 F = 10.0 Pa x 5.5 m²

F = 55N

 Therefore, the gas exerts a force of 55 N on an area of ​​5.5 m²

 This means that if the surface area were increased, the force exerted by the gas would be spread over a larger area, resulting in less pressure. Conversely, as the surface area decreases, the force exerted by the gas is concentrated on a smaller area, resulting in a higher pressure.

Hence,  Option a is correct .

To know more about gas pressure visit :

https://brainly.com/question/31525061

#SPJ4

The answer is (b). Specialized atom combinations known as functional groups bind to hydrocarbon chains and rings to create organic nutrition.

Any of the countless atom combinations that compose chemical compounds and undertake distinctive reactions on their own are categorized as functional groups. It frequently affects the remaining molecules in each molecule's reactivity. The idea of functional groups can be used as a foundation for categorizing numerous substances based on how they behave. Common functional group examples include the hydroxyl found in alcohols and phenols, the carboxyl found in carboxylic acids, and the carbonyl found in aldehydes, ketones, and quinones. It can be simply defined as an atom or group of atoms inside a molecule that share chemical characteristics when they appear in multiple compounds, despite the fact that other components of the molecule are very different.

Learn more about functional groups here

https://brainly.com/question/30666298

#SPJ4

The Complete question is

which of the following best describes a functional group? multiple choice question. large molecules comprised of a glycerol and three fatty acid chains large molecules composed of two or more repeating smaller units special combinations of atoms that attach to hydrocarbon chains and rings to form organic nutrients molecules that are composed of hydrogen and carbon in a long chain or ring-like structure

(a) large molecules comprised of a glycerol and three fatty acid chains

(b) special combinations of atoms that attach to hydrocarbon chains and rings to form organic nutrients

(c) molecules that are composed of hydrogen and carbon in a long chain or ring-like structure

(d) large molecules composed of two or more repeating smaller units

Answer:23.976

Explanation:830j = 197.6 cal. 197.6/100g=1.976 degrees. plus 22 degrees =23.976

Answer:D

Explanation:it makes sense alot

Answer: D) A relative humidity of 95%

Explanation:

Answer:

Frequency = Velocity / Wavelength = 100 m/s / 20 m = 5 s-1 or 5 Hz.

Explanation:

The frequency of a wave with a velocity of 100 m/s and a wavelength of 20m is 5 Hz.

So, option A is correct one.

v = Frequency of wave

c = Velocity

lamda = wavelength of wave

Calculation,

Let velocity = 100 m/s

wavelength = 20m is 5 Hz.

Then, Formula: \(v = c/lamda\)

\(v\) =  100 m/s / 20m = 5 \(s^{-1}\) = 5 Hz ( 1 \(s^{-1}\)  = Hz )

So, frequency of wave is 5 Hz

Learn about frequency,

https://brainly.com/question/14316711

#SPJ2

Answer: B. The actual mechanical advantage of the ramp.

Explanation:

The professor saying that the ramp SHOULD have a mechanical advantage of 3 indicates that that would be the ideal mechanical advantage. Since Rubia calculated it to be 2.8, that means that it is the acutal mechanical advantage. The actual advantage will be reduced from the ieal due to things like friction.

The amount (m) or mass in grams (g) of molybdenum is 30.58 grams.

The amount (m) in grams (g) of molybdenum is determined from the formula of heat change as follows:

Heat change  = mass * specific heat capacity * temperature change

The given values are as follows:

Substance: molybdenum (Mo)

heat transferred (q): 119150 J absorbed

specific heat capacity (c): 0.2772 J/(g-°C)

temperature change (ΔT): +1409.71 °C

Mass = heat change / (specific heat capacity * temperature change)

Mass = 119150 / (0.2772 * 1409.71)

Mass = 30.58 g

Learn more about heat change at: https://brainly.com/question/28912732

#SPJ1

Explanation:

\(v = vdm \times n\)

Vdm=22.4dm.

mole(n)=4 mol

therefore the total volume

\(v = 22.4 \times 4 \\ v = 89.6dm\)

The empirical formula for this oxide is NO.To determine the empirical formula for an oxide that contains 46.68% nitrogen, we need to find the ratio of nitrogen to oxygen in the compound.

Assuming a 100 g sample of the oxide, 46.68 g of it will be nitrogen, and the remaining 53.32 g will be oxygen.

Next, we need to convert these masses to moles. The atomic weight of nitrogen is 14.01 g/mol, and the atomic weight of oxygen is 16.00 g/mol. Therefore, we have:

Moles of nitrogen = 46.68 g / 14.01 g/mol = 3.33 mol

Moles of oxygen = 53.32 g / 16.00 g/mol = 3.33 mol

This shows that the ratio of nitrogen to oxygen in the oxide is 1:1. Therefore, the empirical formula for this oxide is NO.

Find  more about empirical formula

brainly.com/question/14846610

#SPJ4

To produce 1.4 mol of LiF, we need 0.7 mol of MgF2. This corresponds to a mass of 43.6 grams of MgF2, based on the molar mass of MgF2.

We're given that we need to produce 1.4 mol of LiF, and we're asked to find out how much MgF2 is needed for this reaction. We can start by writing out the balanced chemical equation for the reaction:

MgF2 + 2 LiF → 2 LiF + MgF2

From this equation, we can see that 1 mol of MgF2 reacts with 2 mol of LiF to produce 1 mol of MgF2 and 2 mol of LiF. This means that the stoichiometry of the reaction is 1:2 for MgF2 and LiF. In other words, for every 1 mol of MgF2 that reacts, 2 mol of LiF is produced.

So, if we want to produce 1.4 mol of LiF, we need to use stoichiometry to figure out how much MgF2 we need. We can use a conversion factor that relates the number of moles of LiF to the number of moles of MgF2:

1.4 mol LiF × (1 mol MgF2 / 2 mol LiF) = 0.7 mol MgF2

This tells us that we need 0.7 mol of MgF2 to produce 1.4 mol of LiF.

To convert from moles to grams, we can use the molar mass of MgF2, which is 62.3 g/mol. Multiplying the number of moles by the molar mass gives us the mass of MgF2 needed:

0.7 mol MgF2 × 62.3 g/mol MgF2 = 43.6 g MgF2

Therefore, we need 43.6 grams of MgF2 to produce 1.4 mol of LiF.

To know more about molar mass, visit:https://brainly.com/question/12127540

#SPJ4

Answer:

Explanation:

Cu(s) + 2Ag+  ======> Cu^(2+) + Ag(s)

Notice what happened. Silver started out as an ion. It took on 2 electrons that were donated by the copper.

The silver then became a solid ppte. This equation wil take on much more meaning when you take up oxidation and reduction. Until then, you need only know who gave up elections and who took them up.

The dosage of 26mg can be prepared using approximately 1.625 mL of the 40mg in 2.5 mL solution.

The dosage of 22mg can be prepared using approximately 1.222 mL of the 36mg per 2 mL strength solution.

To calculate the dosage using ratio and proportion, we can set up a proportion based on the strength of the solution.

40mg in 2.5 mL solution will be used to prepare a 26mg dosage.

Let X represent the mL of the solution needed to prepare the 26mg dosage.

We can set up the proportion as follows:

40mg/2.5mL = 26mg/X mL

Cross-multiplying and solving for X, we have:

40mg * X mL = 2.5mL * 26mg

40X = 65

X = 65/40

X ≈ 1.625 mL

For the second question:

36mg per 2 mL strength solution is used to prepare 22mg.

Let Y represent the mL of the solution needed to prepare the 22mg dosage.

We can set up the proportion as follows:

36mg/2mL = 22mg/Y mL

Cross-multiplying and solving for Y, we have:

36mg * Y mL = 2mL * 22mg

36Y = 44

Y = 44/36

Y ≈ 1.222 mL

To know more about solution

https://brainly.com/question/1616939

#SPJ11

From highest to lowest atomic radius:

Potassium > Lithium > Carbon > Boron > Fluorine.

Atomic number is the number of protons found in the nucleus of an atom, which determines the element and its unique properties. It is denoted by the symbol "Z" and is listed in the periodic table of elements along with the element's symbol, name, and atomic mass.

The nucleus is the central core of an atom, composed of protons and neutrons, which are collectively known as nucleons. It is located at the center of the atom and contains almost all of its mass. The number of protons in the nucleus determines the identity of the atom and is referred to as the atomic number. The nucleus is held together by the strong nuclear force, which is one of the four fundamental forces of nature.

To know more about  atomic number visit :

https://brainly.com/question/8834373

#SPJ1

Answer:

4.25atm

Explanation:

\(\frac{P1V1}{T1}\\\)=\(\frac{P2V2}{T2}\)

where ,

p1 =845/760=1.11atm

v1=6.50l

t1=25c +273k=298k

p2=?

v2=1850/1000=1.85l

t2=325k

so answer is 4.25 atm

The statement that best describes a scatterplot is that it shows quantitative data that relate two variables (option C).

A scatter plot is a type of graph that displays the relationship between two variables.

The scatter plot is portrayed on a cartesian plane where one of the variables is on an axis called X-axis and the other is on another axis called y-axis.

One of the variables is the independent variable while the other variable is the dependent variable.

Therefore, the statement that best describes a scatterplot is that it shows quantitative data that relate two variables.

Learn more about scatter plot at: https://brainly.com/question/2655543

#SPJ1

The number of carbon atoms at STP is  1.47 x 10²³ atoms

STP stands for standard temperature and pressure. STP refers to a specific pressure and temperature used to report on the properties of matter.

According to IUPAC( International Union of Pure and Applied Chemistry), it is defined as -

It is generally needed to test and compare physical and chemical processes where temperature and pressure plays an important role as they keep on varying from one place to another.

One mole of a gas under STP conditions occupies a volume of 22.4L.

Given,

Volume of CO₂ = 5.50 L

number of moles of CO₂ = 5.5 ÷ 22.4

                                        = 0.245 moles

We know that,

                     1 mole = 6.023 x 10²³ atoms

So, 0.245 moles will have 6.023 x 10²³ × 0.245 atoms

                            =  1.47 x 10²³ atoms

Therefore, the number of carbon atoms at STP is  1.47 x 10²³ atoms

Learn more about STP, here:

https://brainly.com/question/29356493

#SPJ1

Answer:

volume= 3

Explanation:

D=m/v

2.7=8.1/v

2.7v=8.1

8.1/2.7= 3

8.1/3= 2.7 which is the density!

Answer:

3 mL

Explanation:

\(V = \frac{8.1 g}{3 mL} = 2.7 g/mL\)

Answer:

61 degrees

Explanation: