i mix 8.32 grams of nitrogen, 1.42 grams of hydrogen and 3.14 grams of helium in a flask. if the total pressure in the system was found to be 261 kpa. how much pressure of the total does each gas exert?

The percent yield of NH₃ for the reaction is 75%

Percent yield is the percent ratio of actual yield to the theoretical yield

The first thing that you need to do here is to calculate the theoretical yield of the reaction that is if the reaction has 100% yield then

The balanced chemical equation

N₂ + 3H₂ → 2NH₃

This tell you that every 1 mole of nitrogen gas that takes part in the reaction will consume 3 moles of hydrogen gas and produce 1 mole of ammonia and here that 1 mole of nitrogen gas react with 1 mole of hydrogen gas and since enough hydrogen gas to ensure that all moles of nitrogen gas can react

3 mole H₂ > 1 mole H₂

1 mole H₂×2 mole NH₃/3mole H₂ = 0.667 mole NH₃

So at 100% yield this represent the reaction thereotical yield

Now that reaction produced 0.50 moles of ammonia then this represent the reaction actual yield

In order to find the % yield you have to figure out how many moles of ammonia are actually produced for every 100 moles of ammonia that could theoretically be produced

Then 0.667 moles will produce 0.50 moles so you can say that

100 moles NH₃ in theory ×0.50 moles NH₃ actual/0.667 moles of NH₃ actual = 75 moles of NH₃

Therefore, you can say that the reaction has a percent yield equal to

%yield = 75%

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The exact time at which a boy's growth plates stop creating new bone can vary depending on a variety of factors, such as genetics, nutrition, and overall health. However, on average, boys' growth plates tend to stop creating new bone around the age of 16–18 years old.

Growth plates are areas of cartilage located at the ends of long bones in the body, such as the femur, tibia, and humerus. During puberty, hormones such as testosterone and estrogen stimulate the growth plates to produce more bone tissue, leading to a significant growth spurt. This growth typically occurs between the ages of 11-14 years for boys. As boys continue to grow, the growth plates gradually close and are replaced with solid bone. This process is called "epiphyseal fusion" and typically occurs around the age of 16-18 years old.

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Answer:

Covalent bond

Explanation:

A covalent bond is formed when two atoms share electrons. The shared electrons are positioned between the nuclei of the bonding atoms.

In the bonding between chlorine and hydrogen, chlorine has seven valence electrons. Hence, it needs one more electron in order for the atom to attain an octet structure. Hydrogen has one valence electron and needs one more electron in order to attain a duplet structure.

The two bonding atoms now share two electrons(provided by each of the bonding atoms) in a covalent bond such that chlorine has a complete octet and hydrogen has a complete duplet.

A potassium atom's ground state electron configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 4s1.

An atom's electron configuration is a picture of how electrons are arranged in relation to orbital shells and subshells. Consequently, this is potassium's electron configuration.

Making Electron Configurations in Writing. Write the energy level (the period) first, then the subshell that needs to be filled, and finally the superscript, which indicates how many electrons are in that subshell. The atomic number, Z, is the sum of all the electrons.

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Fatty acid groups are referred to as B) acyl groups.

Fatty acids are organic compounds that consist of a long hydrocarbon chain with a carboxyl group (-COOH) at one end. The hydrocarbon chain is composed of carbon and hydrogen atoms, and its length can vary. Fatty acids play essential roles in various biological processes and are major components of lipids, including triglycerides and phospholipids.

When a fatty acid is involved in chemical reactions or is attached to other molecules, it typically undergoes a process called activation, where it is converted into an acyl group. An acyl group is formed by replacing the -OH (hydroxyl) group of the carboxyl group with an -OR (alkoxy) group. The -OR group can be derived from various molecules, such as coenzyme A (CoA) or other acyl carrier proteins.

For example, when a fatty acid is activated for incorporation into a triglyceride molecule, it forms a triglyceride acyl group. Similarly, when a fatty acid is incorporated into a phospholipid molecule, it forms a phospholipid acyl group. The acyl group represents the hydrocarbon chain of the fatty acid, which may vary in length and saturation.

Therefore, the correct answer to the question is B) Acyl.

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Answer:

56.0774g/mol

Explanation:

hope you like it ☺️

The actual molar concentration of the H2O2 solution is 0.16225 M.

To determine the molar concentration of the H2O2 solution, we can use the balanced chemical equation for the reaction between H2O2 and KMnO4:
5 H2O2 + 2 KMnO4 + 3 H2SO4 → 5 O2 + 2 MnSO4 + 8 H2O + K2SO4
From the equation, we can see that 2 moles of KMnO4 react with 5 moles of H2O2. Therefore, we can calculate the number of moles of H2O2 in the 1.00 mL sample as follows:
(0.01524 mol/L) × (42.70 mL) = 0.000649 moles KMnO4
0.000649 moles KMnO4 × (5/2) = 0.0016225 moles H2O2
Next, we need to calculate the molar concentration of the H2O2 solution in the bottle. We know that the 1.00 mL sample was diluted to 100 mL, so the concentration was diluted by a factor of 100. Therefore, the molar concentration of the original solution is:
0.0016225 moles H2O2 ÷ (1.00 mL ÷ 100 mL) = 0.16225 M
Therefore, the actual molar concentration of the H2O2 solution is 0.16225 M.

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The atomic number of rubidium is 37, it means that its electron configuration is as follows:

Rubidium is an alkali metal. Its ion is formed when it loses an electron. It means that the rubidium ion has 36 electrons instead of 37, and its configuration is as follows:

Answer:

true.

Explanation:

Carbon is an essential element for all life forms on Earth. Whether these life forms take in carbon to help manufacture food or release carbon as part of respiration, the intake and output of carbon is a component of all plant and animal life. Carbon is in a constant state of movement from place to place.

Answer:

If you can identify the species that was being oxidized, its species that contains the element on the other side is the reducing agent.

For example, in the equation Zn + Cu2+ --> Zn2+ + Cu, the zinc was oxidized, making Zn the reducing agent.

Answer:

CH3 is the answer thank you

Answer:

Iron, Copper, Zinc, and Gold

Explanation:

in Table of elements

Iron was no. 26

Copper no. 29

Zinc no. 30

Gold no. 79

The pH of the base solution after adding the \(HNO_3\) solution is approximately 2.14.

To calculate the pH of the base solution after adding the \(HNO_3\) solution, we need to consider the acid-base reaction between methylamine (\(CH_3NH_2\)) and nitric acid (\(HNO_3\)). Methylamine acts as a base, while nitric acid is an acid. The reaction can be represented as follows:

\(CH_3NH_2 + HNO_3 \rightarrow CH_3NH_3^+ + NO_3^-\)

Since methylamine is a weak base, we need to consider its reaction with water as well:

\(CH_3NH_2 + HNO_3 \rightarrow CH_3NH_3^+ + NO_3^-\)

To solve this problem, we'll use the Henderson-Hasselbalch equation, which relates the pH of a solution to the pKa and the ratio of the conjugate acid and base forms. The pKa of methylamine is given as 3.36.

1. Calculate the initial moles of methylamine in the base solution:

Initial moles of methylamine = volume of solution (L) * molarity of methylamine (mol/L)

Initial moles of methylamine = 0.1323 L * 0.7100 mol/L

Initial moles of methylamine = 0.093963 mol

2. Calculate the moles of nitric acid added to the solution:

Moles of nitric acid = volume of solution (L) * molarity of nitric acid (mol/L)

Moles of nitric acid = 0.1114 L * 0.7500 mol/L

Moles of nitric acid = 0.08355 mol

3. Calculate the moles of methylamine remaining after the reaction:

Moles of methylamine remaining = Initial moles of methylamine - Moles of nitric acid added

Moles of methylamine remaining = 0.093963 mol - 0.08355 mol

Moles of methylamine remaining = 0.010413 mol

4. Calculate the concentration of the conjugate acid (\(CH_3NH_3^+\)) formed:

The concentration of \(CH_3NH_3^+\) = moles of methylamine remaining / volume of solution (L)

Concentration of \(CH_3NH_3^+\) = 0.010413 mol / (0.1323 L + 0.1114 L)

The concentration of \(CH_3NH_3^+\) = 0.010413 mol / 0.2437 L

Concentration of \(CH_3NH_3^+\) = 0.0427 M

5. Use the Henderson-Hasselbalch equation to calculate the pH of the base solution:

pH = pKa + log10 ([concentration of \(CH_3NH_3^+\)] / [concentration of \(CH_3NH_2\)])

Since the pKa of methylamine is given as 3.36:

pH = 3.36 + log10 (0.0427 M / 0.7100 M)

pH = 3.36 + log10 (0.0601)

pH = 3.36 + (-1.22)

pH = 2.14

Therefore, the pH of the base solution after adding the \(HNO_3\) solution is approximately 2.14.

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False. Table salt, or sodium chloride, forms from an ionic bond between sodium and chloride ions. This bond occurs as a result of the attraction between the positively charged sodium ion and the negatively charged chloride ion.

Hydrogen bonding, on the other hand, is a type of intermolecular bonding that occurs between molecules, not ions. It involves the attraction between a hydrogen atom bonded to a highly electronegative atom (such as oxygen or nitrogen) and a nearby electronegative atom in another molecule.

So, while hydrogen bonding may be involved in the formation of certain types of compounds, it is not involved in the formation of table salt.

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Answer:

All of them have a nucleus..

Explanation:

Pretty simple stuff.  There's no cell without one.

Carlita’s body is made up of many cells. The one thing that all her cells have in common is they have the same kind of genes.

Genes are tiny pieces of spherical hereditary material that are bead-shaped and found on chromosomes. They hold the organism's genetic makeup. The number of genes on each chromosome is incalculable.

The hereditary material that makes up chromosomes is arranged in x shapes inside the nucleus. DNA, genes, and proteins make it up. An organism's genotype is distinct from other organisms because of its distinct genetic makeup, and this distinction can be passed down from one generation to the next.

Traits may be influenced by genes, the environment, or a mixture of the two. Quantitative features can also be qualitative, such as eye colour (such as height or blood pressure).

Therefore, numerous cells make up Carlita's body. Her cells all share the same type of genes, which is the only thing that unites them.

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Answer:

molecular mass = 78

Empirical Formula is

C= 92.3/12= 7.69

H= 7.68/1= 7.68

therefore Empirical formula is

CH

molecular formula is

(CH)n= 78

(12+1)n=78

n=78/13

n=6

molecular formula is

C6H6

Answer:

Explanation:

Suppose a solution contains calcium,

C

a

2

+

, ions.

According to solubility rules, which other ion should be added to form a precipitate?

CO3-(carbonate ion) negatively charged can be added to make insoluble(not dissolving=forming a precipitate) CaCO3(Calcium Carbonate)= common word "Limestone"

Answer:

hot

Explanation:

Answer:

Kerosene

Explanation:

You use process of elimination in this question

None of them except for Kerosene can power a bulb

Explanation:

sodium chloride

thank me later

The jet stream is one of the key winds that moves air masses at the direction from west to east it moves.

Jet streams are strong winds which are flow in the form of narrow bands in the upper part of the atmosphere. On the earth these winds are flows near the altitude of the tropopause. These winds carries weather systems and blows toward the colder northern air and due to the rotation of earth, its direction is from west to east.

Hence jet streams move winds from west to east direction.

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Answer: From west to east.

Explanation:

The rate of diffusion is defined as gas flowing through a space at a given rate at a unit time.

Graham's law of diffusion states that a gas's rate of diffusion is inversely proportionate to its density. Diffusion is the term used to describe the transfer of gas molecules along a concentration gradient. This phenomenon is known as effusion when it allows them to escape through a small hole while under pressure.

Gas diffusion rate is determined by time divided by the volume of the gas diffusion.

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The two most important attitudes that managers will approach their jobs with are: . Organizational commitment and Job satisfaction.

Organizational commitment: Organizational commitment refers to the level of attachment, loyalty, and dedication that managers have towards their organization. Managers who are highly committed to their organization are more likely to invest their time, energy, and effort into achieving the organization's goals and objectives. They exhibit a sense of responsibility and are willing to go above and beyond their formal job requirements. Organizational commitment contributes to higher job performance and lower turnover rates.

Job satisfaction: Job satisfaction refers to the extent to which managers are content and fulfilled in their roles. Managers who experience high job satisfaction are more likely to be motivated, engaged, and productive. They derive a sense of accomplishment and fulfillment from their work, leading to increased job performance and job-related well-being. Job satisfaction is influenced by various factors such as work-life balance, supportive work environment, opportunities for growth and development, and recognition for their contributions.

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Silicate minerals are found in  Earth have more of, it is found in the mantle.

What is silicate minerals ?

Tetrahedra that are confined together are separated by positive charges. Olivine is a prime example. They are connected by positive charges, like those seen in tourmaline, and are known as ringed tetrahedra. Similar to the pyroxene family, tetrahedra share oxygen with two of their neighbors. The amphibole family is a good example of a double chain or ribbon. When three neighboring molecules share an oxygen atom, as in the case of mica and clay minerals, silica sheets are formed. Framework with a three-dimensional structure made up of four oxygen atoms connected to other tetrahedra like quartz and feldspar.

What is mantle ?

The Earth's mostly solid interior is known as the mantle. The planet's mantle lies between its thin crust and its solid, incredibly heated core. The Earth's mantle, which is about 2,900 kilometres (1,802 miles) thick, makes up an astounding 84% of the planet's overall volume.

Therefore, Silicate minerals are found in  Earth have more of, it is found in the mantle.

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Answer:

Physical.

Explanation:

Nothing changes in a chemical state just adding hot air to a balloon.

I'm pretty sure this is classified as a chemical change.

Answer:

B. 2

Explanation:

A single bond contains 2 shared electrons.

Given example is that of ethane

Answer:

The answer is B. 2

Answers:

There's many factors, such as the temperature, rainfall, food available, and the surrounding terrain, that all can effect an animal's characteristics.