the pKa of EtOCONH2 (ethyl carbamate) is?

Answer: On the outside you can't spread radiation from person to person but if a person comes in contact with something radiated from the inside like urine or vomit then yes

By using the definition of purity the amount of gold in the sample is 275.8 grams.

Since the given mass is in grams and we are asked to find the amount of gold in the sample, we can directly use the definition of purity, which is the mass of gold in the sample divided by the total mass of the sample. Let x be the amount of gold in grams. Then we can write:

purity = x / 275.8 g

Since the sample is pure gold, the purity is 100% or 1.00 in decimal form. Thus, we have:

1.00 = x / 275.8 g

Multiplying both sides by 275.8 g, we get:

x = 275.8 g

Learn more about the amount of gold at

https://brainly.com/question/17810605

#SPJ4

Answer:

0.446

Explanation:

ccu =  3035.655 / 104 g x (98.9 - 33.5)  = 0.446 J / g 0 C

The experimental specific heat capacity of the copper is 0.446 J/g°C.

\Solution:

CCU =  3035.655 / 104 g x (98.9 - 33.5)

       = 0.446  J/g°C.

The method for particular heat ability, C, of a substance with mass m, is C = Q /(m ⨉ ΔT).

wherein Q is the strength added and ΔT is the exchange in temperature.

The unique heat capability is defined as the quantthe ity of heat (J) absorbed consistent with unit mass (kg) of the cloth when its temperature will increase 1 k (or 1 °C), and its units are J/(kg k) or J/(kg °C).

Particular heat is defined by the quantity of heat had to raise by the temperature of 1 gram of a substance 1 diploma CelsiuwhichC). Water has a high precise warmth, that means it takethe s more energy to boom the temperature of water as compared to different materials.

A high particular warmness of a substance means that a big quantity of warmth is required to raise the temperature of the substance. Water covers the Earth's surface and its highly unique warmth performs a completely essential position as it can soak up a whole lot of warmness without a substantial upward push inside the temperature.

Learn more about specific heat capacity here:-https://brainly.com/question/21406849

#SPJ2

(I would appreciate a thanks, a rating and/or a Brainliest rating if this helped you)

Answer:

2.35 x 10^-19 joules

Explanation:

The energy (E) of a photon can be calculated using the following formula:

 E = hν

where h is Planck's constant (6.626 x 10^-34 joule seconds) and ν is the frequency of the radiation.

So, to calculate the energy of a photon with a frequency of 3.54 x 10^14 hertz, we can substitute the values in the formula:

 E = (6.626 x 10^-34 J s) x (3.54 x 10^14 Hz)

E = 2.35 x 10^-19 joules

Therefore, the energy of a photon of radiation with a frequency of 3.54×10^14 hertz is 2.35 x 10^-19 joules.

Answer:

3.125g

Explanation:

100/2
50   1
50/2
25    2
25/2
12.5   3
12.5/2
6.25   4
6.25/2
3.125g   5

Answer:

lithium's atomic number is 3

The unusually high boiling point of water (H2O) is primarily due to the presence of hydrogen bonding between water molecules. This unique intermolecular force is responsible for the exceptional properties of water, including its high boiling point.

Hydrogen bonding occurs when the hydrogen atom in one water molecule is attracted to the oxygen atom in a neighboring water molecule. This attraction is a result of the large electronegativity difference between oxygen and hydrogen. Oxygen is highly electronegative, causing a partial negative charge (δ-) on the oxygen atom and a partial positive charge (δ+) on the hydrogen atoms.

As a result of hydrogen bonding, water molecules form a network of intermolecular attractions, leading to a higher amount of energy required to break these bonds and convert water from the liquid phase to the gas phase. The energy required to disrupt the hydrogen bonds and convert water into vapor manifests as a higher boiling point compared to other substances with similar molecular weights.

Additionally, the presence of hydrogen bonding also contributes to other properties of water, such as its high specific heat capacity, density anomalies, and surface tension, which are vital for the maintenance of life and various natural processes.

Know more about Hydrogen Bonding here:

https://brainly.com/question/31139478

#SPJ11

There are 9 steps of the election process Call for Nominations, Preliminary Reviews, Ballot Petition Rules, Nominee Interviews, Committee Meeting, Slate of Candidates Announcement, Voting Opens etc..

Request for Nominations

The nomination process is made public by the Academy.

introductory reviews

Candidates are required to submit biographical sketches that contain digital images, films they have recorded themselves, and curriculum vitae or resumes.

Election Petition Rules

Check out the requirements for adding a petitioner to the general election ballot.

interviewing nominees

Virtual meetings with the Nominating Committee are held.

Commission Meeting

The Nominating Committee meets in late fall to review the materials submitted by candidates, taking into account which positions are open on the ballot, and evaluating key personal, interpersonal, and demonstrated leadership skills as they relate to the qualifications and skill set needs for each position.

Release of the Candidate Slate

Announcing candidates for posts includes posting supporting information online, in the Academy's electronic weekly newsletter, and on social media, including images, self-recorded films, biographical sketches, and answers to questions posed by the Nominating Committee.

Voting begins

Members take part in computerised voting during the month of February for the national Academy elections.

Announcing the results of the election

Following the tallying of all votes and the notification of candidates, the Academy informs members of the election results.

Review of the election and nomination processes

The process for nomination and election is assessed at each stage. The Nominating Committee, the Academy, and the applicants are all asked for their opinions.

Learn more about election process here:

https://brainly.com/question/2172915

#SPJ4

Answer:

Step 1:

UQH2 + 2 cyt c (Fe3+) → UQ + 2 cyt c (Fe2+)

This step involves the oxidation of UQH2 and reduction of cyt c (Fe3+). The net reaction involves a 2-electron transfer from UQH2 to cyt c (Fe3+).

The standard reduction potential for UQH2 to UQ is given as 0.06 V, and for cyt c (Fe3+) to cyt c (Fe2+) it is 0.254 V.

The net standard reduction potential for step 1 can be calculated as follows:

E°_net1 = E°(UQH2) - E°(cyt c (Fe3+))

E°_net1 = 0.06 V - 0.254 V

E°_net1 = -0.194 V

Step 2:

UQH2 + 2 cyt c (Fe3+) → UQH + 2 cyt c (Fe2+)

This step also involves the oxidation of UQH2 and reduction of cyt c (Fe3+). The net reaction involves a 2-electron transfer from UQH2 to cyt c (Fe3+).

The standard reduction potential for UQH2 to UQH is given as 0.19 V.

The net standard reduction potential for step 2 can be calculated as follows:

E°_net2 = E°(UQH2) - E°(cyt c (Fe3+))

E°_net2 = 0.19 V - 0.254 V

E°_net2 = -0.064 V

Total redox potential of Complex III:

To calculate the total redox potential, we sum up the net reduction potentials of step 1 and step 2:

E°_total = E°_net1 + E°_net2

E°_total = -0.194 V + (-0.064 V)

E°_total = -0.258 V

Now, let's calculate the free energy available for proton translocation assuming a 2-electron process for each complex.

The equation relating free energy change (ΔG) and standard reduction potential (E°) is given by:

ΔG = -nFΔE°

Where:

ΔG is the free energy change

n is the number of electrons transferred

F is Faraday's constant (96,485 C/mol)

ΔE° is the standard reduction potential

For a 2-electron process, n = 2.

ΔG1 = -2 * 96,485 C/mol * (-0.194 V)

ΔG1 = 37,508.12 J/mol

ΔG2 = -2 * 96,485 C/mol * (-0.064 V)

ΔG2 = 12,303.04 J/mol

Therefore, the free energy available for proton translocation for each complex is 37,508.12 J/mol for Complex III, step 1, and 12,303.04 J/mol for Complex III, step 2.

To calculate the moles of protons translocated, we can use the equation:

ΔG = nFΔp

Where:

ΔG is the free energy change in joules

n is the number of moles of protons

F is Faraday's constant (96,485 C/mol)

Δp is the potential difference finish up now

The common name of the compound is 3-cyclopentylethanol.

Based on the given answer choices, the common name of the compound 1-cyclopropyl-1-ethylalcohol is ethylcyclopentanol. Here's a breakdown of the terms:

1. 3-cyclopentylethanol: This refers to an alcohol with an ethyl group (2 carbons) and a cyclopentyl group (5 carbon ring) connected to the third carbon of the ethyl group.

2. 1-cyclopropyl-1-ethylalcohol (ethylcyclopentanol): This compound has a cyclopropyl group (3 carbon ring) and an ethyl group connected to the same carbon, resulting in the common name ethylcyclopentanol.

3. Cyclopentyl ethyl ether: This compound is an ether with a cyclopentyl group and an ethyl group connected by an oxygen atom.

4. Cyclopentyl ethyl ketone: This compound is a ketone with a cyclopentyl group and an ethyl group connected by a carbonyl group (C=O).

So, the common name of the compound 1-cyclopropyl-1-ethylalcohol is ethylcyclopentanol.

To know more about cyclopentyl visit:

https://brainly.com/question/12621202

#SPJ11

The given statement ," Greenhouse gases affect the temperature of the earth by blocking sunlight from reaching the earth" is true.

Generally the greenhouse effect is defined as a process that occurs when gases in Earth's atmosphere usually trap the Sun's heat. The process of greenhouse gases makes Earth much warmer than it would be without an atmosphere. Basically greenhouse effect is one of the things that makes our Earth a comfortable place to live.

Generally greenhouse gases are also known as GHGs are gases in the earth's atmosphere that trap heat. Basically, during the day time, the sun shines through the atmosphere, warming the earth's surface. During the night time the earth's surface cools, releasing heat back into the air.

Hence, the given statement is true.

Learn more about greenhouse effect from the link given below.

https://brainly.com/question/29000016

#SPJ4

Answer:

Rubidium Chloride is an excellent water soluble crystalline Rubidium source for uses compatible with chlorides.

Compound Formula: ClRb

Melting Point: 715 °C

Boiling Point: 1,390 °C

Explanation:

There are two moles of oxygen in cassiterite (tin ore), SnO2, for every mole of tin. As a result, if we have 13 moles of tin, we should have 13 * 2 moles of oxygen. This results in 26 moles of oxygen.

Cassiterite (SnO2) is the most essential tin ore, and it is frequently located in granite veins, granite pegmatites, and greisen. The name is derived from the Greek kassiteros, which means tin.

Cassiterite is a tin oxide mineral with the chemical formula SnO2. It is the primary significant source of tin, accounting for the majority of the world's supply. Primary cassiterite is found in trace amounts in igneous and metamorphic rocks all over the world. It is a mineral that can be found in soils and sediments. Cassiterite is more resistant to deterioration than many other minerals, so it is found in stream and shoreline sediments. Colors include black, brownish black, reddish brown, brown red, yellow, gray, and white.

For more information on Cassiterite, visit :

https://brainly.com/question/18484656

#SPJ4

Answer:

0.640mol/L

Explanation:

Firstly, we can calculate the number of moles of nitric acid. We can do thi by using the formula: n=cv (no. moles = concentration x volume).

The given concentration is 1.60mol/L, so we need to convert the given volume into liters to use the formula correctly. There are 1000mL in a L therefore 200/1000 = 0.200L

1.60x0.200 = 0.320 total moles of nitric acid.

Now we can use n=cv to work out the new concentration by rearranging to c=n/v.

Our new volume is 0.200+0.300 = 0.500L

And our number of moles is 0.320.

Therefore the new concentration of the acid is:

c=0.320/0.500 = 0.640mol/L

Hope this helps!

The type of mass movement that is LEAST coherent (most like a fluid) is a mudflow. The correct option is d.

Mass movement refers to the downhill movement of earth materials due to gravity. There are different types of mass movement, including slump, rockslide, creep, and mudflow. The coherency of a mass movement refers to the degree of internal strength or viscosity of the material involved.

The more coherent the material, the less it flows like a fluid. Among the given options, mudflow is the least coherent or most fluid-like type of mass movement. Mudflow refers to the rapid downhill movement of a mixture of water and fine-grained sediment, such as clay and silt.

Mudflows are highly fluid and can travel at high speeds, posing a significant hazard to life and property in areas prone to landslides and flash floods. In contrast, slumps, rockslides, and creep involve more cohesive materials and exhibit less fluid-like behavior. Therefore, the correct option is d.

To know more about mudflow refer here:

https://brainly.com/question/30922995#

#SPJ11

The use of nuclear and chemical reactions in the world are different.

Nuclear reactions can also be used to make nuclear weapons, albeit this use is highly regulated and under the watchful eye of international organizations.

On the other hand, chemical reactions are used in many aspects of daily life, including the production of food, drugs, and consumer products. They are also used in a variety of industrial processes, such as the creation of polymers, fertilizers, and other chemicals.

Learn more about nuclear reactions:https://brainly.com/question/16526663

#SPJ1

The total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.

To calculate the total charge that flows while the battery is being charged, we can use the relationship between electrical energy, potential difference, and charge.

The electrical energy (E) stored in the battery is given as 64 mega Jules (64 MJ). The potential difference (V) provided by the battery is 330 volts. We know that the energy (E) is equal to the product of the potential difference (V) and the charge (Q):

E = V * Q

Since the charging process is 100% efficient, all the electrical energy supplied is stored in the battery. Therefore, we can rearrange the equation to solve for the charge (Q):

Q = E / V

Substituting the given values, we have:

Q = 64 MJ / 330 V

To perform the calculation, we need to convert mega Jules (MJ) to joules (J) since the SI unit of energy is joules. One mega Joule is equal to 1 million joules:

Q = (64 * 10^6 J) / 330 V

Calculating the division:

Q ≈ 193,939.39 Coulombs

Therefore, the total charge that flows while the battery is being charged is approximately 193,939.39 Coulombs.

This value represents the quantity of electric charge transferred during the charging process, and it indicates the amount of electricity that enters the battery.

For more such questions on charge visit:

https://brainly.com/question/18102056

#SPJ8

Answer:

B. reflection

Explanation:

Rigid transformations are methods involved in changing the dimensions or orientation of a given figure. The methods are; dilation, rotation, translation and reflection.

Reflection is the process in which a given figure is turned or flipped with respect to a point or line of reference.

In the given question,

ΔDEF ≅ ΔD'EF' (Side-Side-Side congruence property)

This implies that ΔDEF was reflected about point E to produce ΔD'EF'. Thus the required rigid transformation is reflection.

Answer:

Is C - Rotation

Explanation:

I have right on my test

\( \text{Given,}\)

\( \text{Mass of C = 24g(w) for C}\)

\( \text{mass of H= 4g(w) for H and mass of C= 32g(w)}\)

\( \text{for O( ∵n= w/m)}\)

\( \therefore \text{ moles of C =} \frac{24}{12 } = 2\)

\( \text{moles of H =} \frac{4}{1} = 4\)

\( \therefore \text{ moles of O=} \frac{32}{16} = 2\)

\( \text{Thus, Simple Ratio is= 2:4:2 also be written as 1:2:1}\)

\( \text{Hence, Emperical Formula=} \text{CH}_2 \text{O}\)

Answer:

3.9 L

First convert temperature to Kelvin

then use the ideal gas law

use algebra to solve for V

Since your solving for volume, your answer should be in Liters.

Carbon is very important to plants and they obtain the majority of it from the air in the form of carbon dioxide.

In conclusion, carbon is very important to plants as they both use it to get food and to maintain their shape owing to their internal structure being made from carbon.

Find out more about carbon and plants at https://brainly.com/question/19083306.

Answer:

n=m/M

n=48/32

n=1.5 moles

the correct answer is B

Answer:

No of protons = 15

Explanation:

Given that,

Atomic number = 15

Mass number = 31

We need to find the no of protons in the atom.

We know that,

No of protons = Atomic no of the atom

No of protons = 15

Hence, there are 15 protons in the atoms.

The percent yield of zinc carbonate is 5.91%. This suggests that the reaction did not go to completion, and there was likely some loss of product during the experiment.

To find the percent yield of zinc carbonate, we need to compare the actual yield (what was obtained in the experiment) to the theoretical yield (what would be obtained if the reaction went to completion).

First, let's calculate the theoretical yield of zinc carbonate:

Now, let's calculate the percent yield:

The actual yield  \(ZnCO_{3}\) is given as 12.6 g.

The percent yield is calculated as:

Learn more about zinc carbonate

https://brainly.com/question/31114294

#SPJ4

Full Question: A reaction between 1.7 moles of zinc iodide and excess sodium carbonate yields 12.6 grams of zinc carbonate. This is the equation for the reaction: Na2CO3 + ZnI2 → 2NaI + ZnCO3. What is the percent yield of zinc carbonate? The percent yield of zinc carbonate is %

For the sentence that explains how to determine the number of neutrons, the appropriate response is Calculate the mass number by deducting the atomic number.

The neutron number represents how many neutrons there are. (N). Because the mass of each of these nuclear particles is roughly equivalent to one unified atomic mass unit (u), the mass number is defined as the sum of the protons and neutrons. (A).

The number of electrons orbiting the nucleus of an atom of an element is known as its atomic number. It also stands for the quantity of protons contained within the atom's nucleus.

learn more about atomic number

https://brainly.com/question/11353462

#SPJ1

Answer:

It will not dissolve in water.

Explanation:

You're welcome

If something is insoluble it means that it will not dissolve in water. Therefore, option B is correct.

Solubility can be defined as the maximum amount of Solute that can dissolve in a known solvent at a particular temperature. By changing the temperature of the solution, we can increase the solubility of a substance. Sparingly soluble solids or liquids can be fully liquified by increasing the temperature.

Solubility depends on the nature of the given solute and the solvent. Substances such as sugar, NaCl, etc dissolve in water while substances such as naphthalene can not dissolve in water.

An insoluble substance can be defined as a substance or solid that will not dissolve in a solvent even after mixing such as sand. For example, Sand, Stones, Oil, Flour, and wax. Examples, of soluble things, are Salt, Sugar, Vinegar, Coffee, and Lemon Juice.

Learn more about solubility, here:

brainly.com/question/8591226

#SPJ2