how many moles of water are produced when 3 moles of hydrogen gas reacts with 2 moles of oxygen gas?

Answer:

To find the number of grams of iron chloride produced when 4.3 moles of iron react with excess chlorine, you can use the following equation: 4.3 moles of iron x (2 moles of iron chloride/3 moles of chlorine) = 2.86 moles of iron chloride. Then, you can use the molar mass of iron chloride (162.195 g/mol) to calculate the number of grams of iron chloride produced: 2.86 moles of iron chloride x 162.195 g/mol = 464.14 g of iron chloride.

Explanation:

In solid-liquid extraction, the concentration of salt in the reboiler can increase due to several reasons: Evaporation of the solvent,   Crystallization,  Incomplete extraction,  Poor mixing

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The starting alkene when reacted with H₂O and H₂SO₄ catalyst is required to produce 3-methylpentan-3-ol is 3-methyl-2-pentene.

The alkene  that is 3-methyl-2-pentene when reacted with H₂O and H₂SO₄ catalyst will  produce the 3-methylpentan-3-ol . The reaction is followed by the  acid - catalyzed hydration. The reaction is as follows :

CH₃ - CH₂ - C = C - CH₃ + H₂O + H₂SO₄ ---->CH₃ - CH₂ - C(CH₃)- CH₂ - CH₃

                     |                                                                             |

                   CH₃                                                                         OH

The Acid catalyzed hydration can be define as the process of the breaking the pi bond in the alkene or the alkyne to add water.

Thus, the starting alkene name is 3-methyl-2-pentene .

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Yes, tetraprotic acids do exist. An example of a tetraprotic acid is Ethylenediaminetetraacetic acid (EDTA).

Acids are majorly monoprotic, diprotic and triprotic depending on the amount of hydrogen ions they produce in water. Monoprotic acids produce a single hydrogen ion when they are dissolved in water. For example, hydrochloric acid. Diprotic acids produce two hydrogen atoms when they are dissolved in water. For example, sulphuric acid.

Similarly, triprotic acids release three hydrogen when dissolved in water. An example of triprotic acids is phosphoric acid. Tetraprotic acids also exist. EDTA is an example of a tetraprotic acid.

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The number of the oxygen atoms are there in the 0.20 mol of the ethanoic acid, CH₃COOH is 2.4 × 10²³ atoms.

The number of the moles of the ethanoic acid = 0.20 mol

The formula of the ethanoic acid = CH₃COOH

The number of the oxygen atoms in the ethanoic acid = 2

The one mole of the substance = 6.022 × 10²³ atoms

The number of the oxygen atoms in the ethanoic acid is as :

The number of oxygen atom = 2 × 0.20 × 6.022 × 10²³ atoms

The number of the oxygen atom   = 2.4 × 10²³ atoms.

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Answer: I am pretty sure these will form

BaSO4 and Fe2(CO3)3

Explanation:

The positive ions go with the negative and vice versa

In the electromagnetic spectrum, radio waves are a form of electromagnetic radiation having wavelength longer than infrared light.

Describe a spectrum?

The characteristic frequencies of electromagnetic waves (or a subset of it) that are released or absorbed by a material, atom, or molecule are known as a spectrum.The range of colours that appear on a display when white light goes thru a prism and separates into its individual colours is known as the spectrum. Vi (V), indigo (1), blues (B), greenish (E), yellow (X), oranges (O), and red are the colours of the rainbow (R).

Describe a prism ?

A prism is a transparent glass piece or another material that has been cut with exact angles on plane faces for use in reflecting and analysing light in optics a typical triangle

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a. The balanced reaction equation for the hydration of anhydrous barium chloride to form barium chloride tetrahydrate is:

BaCl2 (s) + 4 H2O (l) → BaCl2.4H2O (s)

b. The amount of hydrate formed when the water is added can be calculated by using the stoichiometry of the reaction equation. Since 4 moles of water are used for every 1 mole of anhydrous barium chloride, we can calculate the moles of hydrate formed as follows:

moles of hydrate = (moles of water) / (moles of anhydrous BaCl2) * (moles of hydrate)

moles of hydrate = (120.0 mL * 1L/1000mL * 1 mole/18.015 g * 1 g/mL) / (2.50 moles) * (1 mole hydrate / 1 mole anhydrous BaCl2) = 0.03 moles

c. To find the percentage of the sample that is not fully hydrated, we can use the following formula:

(moles of anhydrous BaCl2 - moles of hydrate) / (moles of anhydrous BaCl2) * 100% = (2.50 moles - 0.03 moles) / 2.50 moles * 100% = 98.8%

d. To find the density of the resulting solution, we can use the following formula:

density = mass/volume

mass = moles of solute * molar mass of solute + moles of solvent * molar mass of solvent

mass = (2.50 moles * 208.23 g/mole) + (650.0 mL * 1L/1000mL * 1g/mL) = 518.1g + 650g = 1168.1g

volume = 795.0 mL * 1L/1000mL = 0.795L

density = mass/volume = 1168.1g / 0.795L = 1473g/L

The density of the resulting solution is 1473g/L

Methylene blue's molar mass, however, is 319.85. Methylene blue can have a mass of 0.32g.

The stock solution's prepared molarity is 0.01 M.

100 mL is the prepared stock solution volume.

Taken methylene blue millimoles equal 0.01 x 100 or 1 mmol.

Taken methylene blue mass is equal to moles times molar mass (10-3 x 319.85 = 0.31985 g).

Methylene blue is 99.99% pure, which means that if we take 100g of the substance, it actually includes 99.99 g of the dye.

Therefore, a sample of methylene blue equal to 100g must be taken for 99.99 g.

The required methylene blue sample is equal to (100/99.99)x0.31985, or 0.319 g.

Taken methylene blue mass is 0.32 g.

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The temperature is an important factor to consider when performing experiments. In this particular experiment, you need to know the initial temperature displayed on the thermometer before adding sodium hydroxide (NaOH) to hydrochloric acid (HCl). The answer to this question is option 4: 21.5 °C.

To get the initial temperature, you need to measure the temperature of the solution before adding the NaOH to the HCl. This is done by reading the temperature displayed on the thermometer. In this experiment, the temperature on the thermometer before adding NaOH to HCl was 21.5 °C.

It is important to note that the temperature of the solution can change when substances are added. Therefore, it is important to record the initial temperature of the solution before adding any substances. This is why it is important to know the initial temperature displayed on the thermometer before adding NaOH to HCl. By recording the initial temperature, you can accurately compare the changes in temperature after adding substances to the solution.

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The molarity of the solution will be 13.12 M.

The formula used to calculate molarity is as follows:

Molarity = Number of moles of solute / Volume of solution

Consider 1L sample of the solution.

So, use the density of the solution to determine grams in 1L,

1.200 g/ML × 1000 mL = 1200g

The percent concentration by mass is 40.0% HCl.

The mass of hydrochloric acid in 1200g of solution,  

1200 × 40/100 = 480 g HCl

Use hydrochloric acid's molar mass to determine number of moles,

1 mole HCl = 36.46g

480 g = 13.17 moles HCl

The molarity of the solution will thus be 13.17/1.00 L = 13.17.

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The concentration in 500.0 mL of water is 0.38 mol/L. The sugar's molar mass may be estimated using the following formula: molar mass = mass divided by the number.

of moles moles = mass divided by molar mass 190.0 mg / (1 g/1000 mg) = 0.19 g moles 0.5 L = 500.0 mL = 0.19 g / (0.38 mol/L) The molar mass is calculated as 0.19 g / 0.38 mol = 500 g/mol. The molar mass of a material is the mass of one mole given in grams per mole. It is the sum of the atomic masses of all the atoms in a substance's molecule and is commonly used to calculate the quantity of a substance in a sample. The molar mass of a molecule may be estimated by summing the atomic masses of each element and translating the result to grams per mole.

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The unhybridized p orbital is anticipated to make a 90° angle with the plane, indicating strong agreement between valence bond theory and the actual angle of 93.3°.

Valence bond theory is one of two main theories in chemistry, along with molecular orbital theory, that were established to describe chemical bonding using quantum mechanics approaches. It focuses on how dissociated atoms' atomic orbitals interact to create individual chemical bonds when a molecule is formed. In contrast, orbitals in molecular orbital theory span the entire molecule.

A covalent bond is created between two atoms by the overlap of half-filled valence atomic orbitals of each atom having one unpaired electron, according to this hypothesis. A valence bond structure is comparable to a Lewis structure, however when writing a single Lewis structure is impossible, many valence bond structures are employed. Each of these VB structures corresponds to a different Lewis structure.

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The total pressure (in atm) of the mixture of the 1.00 atm of dinitrogen reacts with the 5.00 atm of the dihydrogen in the 1.0 l flask to give ammonia is 1.2 atm.

The reaction of ammonia formation is :

N₂  +  3H₂   --->  2NH₃

The pressure of the dinitrogen = 1 atm

The pressure of the dihydrogen = 5 atm

                  N₂  +  3H₂   --->  2NH₃

Initial           1          5            

Divided       1         1.6            

by mol          

End             0         0.6         0.6

The total pressure = partial of   N₂  + partial pressure of H₂

The total pressure  = 0.6 + 0.6

The total pressure = 1.2 atm

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The 3 parts of the periodic table are metals on the left end, Non-metal on the right end, and metalloids lies between metals and non-metals.

While trying to categorize the elements in February 1869, Mendeleev discovered the existence of the periodic table, or Periodic System as he later termed it.

The elements are given in the contemporary periodic table in increasing order of atomic number. The quantity of protons in an atom's nucleus is known as the atomic number. Proton count establishes an element's identification (i.e., an element with 6 protons is a carbon atom, no matter how many neutrons may be present).

Henry Moseley established the Modern Periodic Law & Table in 1913. Mendeleev was the first to classify all of the known elements, and he provided the law called the Mendeleev's periodic law.

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Answer:

10g of water was vaporized by the 2.28K/J

Based on the assertion and reasons given, it can be seen that the Assertion is true, but the reason is false.

Camphor and ammonium chloride are not separated because they are volatile substances. Hence assertion is true.

Camphor on heating sublimes, only when mixed with sodium chloride so the reason is false.

The bark and wood of the camphor tree were once used to make the chemical known as camphor.

Today, turpentine oil is typically used to make camphor. The fragrance of camphor is quite distinctive. It helps with symptoms like pain and itching by stimulating the nerves, it seems.

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Learning to pan or sifting and sorting for gold is simple. In compared to most other prospecting tools, gold pans are affordable. Generally speaking, gold pans are portable, lightweight items that can be transported almost anywhere.

Within a medium-sized pan, panning employs water to separate heavy gold particles from other lighter ones. In this procedure, water and sediment or ore presumed to contain gold are added to a large, curved pan.

Use your fingers to break up any dirt or clay pieces, taking cautious not to allow any material escape. Place the pan in the shower. Pick up the classifier and comb through it with your fingers for gold nuggets once the rocks on top have been thoroughly cleaned.

By utilizing a sifting and sorting to recover gold from a placer deposit, placer mining, also known as gold panning, is a conventional mining method. Due to its low cost and relative simplicity, the method is one of the easiest ways to extract gold and is well-liked among geology enthusiasts.

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To obtain 95.0 g of gold from sylvanite, we would need to dig up 343.75 g of sylvanite.

To obtain 95.0 g of gold from sylvanite, we would need to dig up 343.75 g of sylvanite, since 28.0 % of the sylvanite is gold. To calculate this, we would need to use the following equation:

95.0 g Gold = (100.0 g Sylvanite)(0.28)

Rearranging the equation to solve for the mass of Sylvanite, we get:

100.0 g Sylvanite = (95.0 g Gold)/(0.28)

Solving for the mass of Sylvanite, we get 343.75 g Sylvanite. Therefore, to obtain 95.0 g of gold from sylvanite, we would need to dig up 343.75 g of sylvanite. The units for this answer are therefore 343.75g Sylvanite.

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Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on D.) the source of energy used to produce the hydrogen.

Hydrogen is a future world energy source which since the last few decades has become the main focus of energy development in various countries. As the simplest and most abundant element on earth, hydrogen easily bonds with other chemical elements such as water, hydrocarbons, alcohols, and so on. It doesn't stop there, hydrogen can also be contained in natural biomass, both plants and animals.

This means that hydrogen itself functions as an energy carrier which can be used for fuel in various production lines. There are at least four uses of hydrogen, namely industry (oil refining, ammonia production, methanol production, steel production), transportation (car and airplane fuel cells), buildings (gas networks in housing and offices), and power plants (gas turbines).

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Answer:

Explanation:

moonlight is sunlight that shines on the moon and bounces off

Temperature at which Hg (l) and Hg (s) reach equilibrium is 234 K.

Equilibrium temperature is defined as the condition under which two substances in physical contact with each other exchange no heat energy. Two substances are said to be in thermal equilibrium at the same temperature.  A hypothetical water temperature at which the net heat flux is zero is defined as the Equilibrium water.

Temperature at which liquid Hg will convert to solid Hg at atmospheric pressure is melting point of Hg which is -39 C = -39 + 273 K = 234 K.

Hence, the equilibrium temperature of Hg is 234K.

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The observation that would support the idea that the amount of heat required to raise the temperature of matter, depends on the nature of the matter is D. After the same amount of time, the three samples were at different temperatures.

The process of moving energy from one system to another, such as through the transmission of heat, work, or mass, is known as energy transfer.

Hence, because of the use of samples by the students using different liquids at the same temperature, option D best supports the idea that the amount of heat required to raise the temperature of matter, depends on the nature of the matter

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Students take three samples of three different liquids, all at the same temperature, and place the samples into three identical beakers. They place all three beakers onto the same hot plate. Which of the following observations would support the idea that the amount of heat required to raise the temperature of matter, depends on the nature of the matter?

Before heating, the initial masses of the three different liquids were slightly different.

After turning off the hot plates, all the liquids eventually returned to room temperature.

Some of the heat from the liquids was transferred to the air around the beakers.

After the same amount of time, the three samples were at different temperatures.

Food cans frequently have tin coating on them. The fact that tin atom have 68 electrons is genuine.

The negative charge components of an atom are called electrons. The total potential difference of an atom's electrons counteracts the dipole moment of its protons in the elementary particle. When compared with all the other components of the atom, electron are quite tiny.

The negative charged particles known as electrons revolve around the outer edges of the nuclear. For scientists, it can be challenging to monitor them because of how quickly they spin. They are the tiniest particle in an atoms and are drawn to the neutrons' positive charge.

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The heat that released from a combustion reaction of C₆H₆ when 13.5 grams of h20 product are created is -1588.7 KJ/mole

Heat is produced when kinetic energy moves within a material or an object, or when kinetic energy moves from an energy source to a material or an object. Such energy can be transported using three different mechanisms: radiation, conduction, and convection.

Heat energy is created by the movement of tiny atoms, molecules, or ions in solids, liquids, and gases. It is possible to transfer heat energy from one thing to another. Heat is a flow or transfer that happens when two objects have different temperatures from one another.

2C₆H₆ + 15O₂ → 12CO₂ + 6H₂O

2x49.04   2x10       12x-393.5  6x-285.8

= [ 12(-393.5 )+6(-285.8) ] - [ 2(49.04)+(2x10) ]

= - 6936.8 - 98

= - 6534.8 KJ/mole

we have 13.5 gram of water produce so,

moles water = mass/ mass molar = 13.5 g/ 18 g/moles = 0.75 moles

with unitary method we can find the moles of benzene

mole benzene = 2/6 x 0.75 = 0.25 moles

so the heat release of 0.25 moles of benzene  is

= - 6534.8 KJ/mole x 0.25 moles = -1588.7 KJ/mole

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The one best response for the discard clean broken glassware, melting point capillaries is the option (c) Potential injuries could occur to the janitorial staff if the broken glassware is not seen.

It is very danger to throw out the  broken glassware away that has been in the touch with the chemical products in a regular garbage or the  recycling containers. This is dangerous because of  it can lead to the serious injuries if the worker that collects it from the trash and it is not aware of the presence of the broken glass in the garbage bin.

Thus, Potential injuries can occur to the janitorial staff if the broken glassware is not seen.

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NADH (nicotinamide adenine dinucleotide hydrogen) transfers high-energy electrons to the first electron carrier in the electron transport chain, which is usually a protein complex in the inner membrane of mitochondria.

During this transfer, NADH is converted to NAD+. This reaction provides energy for the production of ATP (adenosine triphosphate) through a process known as oxidative phosphorylation. The transfer of electrons from NADH to the electron transport chain is accompanied by the movement of protons from the matrix side of the inner mitochondrial membrane to the intermembrane space, creating a proton gradient that drives the generation of ATP. The conversion of NADH to NAD+ is an essential step in cellular respiration, as it allows cells to produce ATP through the oxidation of food molecules.

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The percentage error of melanie's measurement of the unknown solution would be = -50%

Percentage error is defined as the difference between estimated value and the actual value in comparison to the actual value and is expressed as a percentage.

The actual density of the unknown solution = 1.381 g/ml.

The value obtained (expected value) = 2.784 g/m

Percentage error

=actual value-expected value/ expected value×100/1

= 1.381- 2.784/2.784 × 100/1

= −1.403/2.784 × 100

= -0.5 × 100

= -50%

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HCl is a strong acid which is composed of hydrogen and chlorine ions. When it is dissolved in water, it produces hydronium ions (H3O+) and chloride ions (Cl-).

The equation for this acid-base reaction is: HCl (aq) + H2O (l) <=> H3O+ (aq) + Cl- (aq). The HCl molecule has a strong attraction for the water molecules due to its strong polarity. This attraction causes the release of hydrogen ions (H+) which combine with water molecules to form hydronium ions (H3O+). The hydronium ions are the acid in the solution and are responsible for the acidic properties of HCl. The chloride ions remain in solution, but do not contribute to the acidic properties. The presence of hydronium ions means that HCl is considered an acid. The strength of the acid can be determined by measuring the pH of the solution, which is usually less than 7.

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Option A and option C are the potential identifiers of A, B and X.

The transfer of electrons and the rearranging of atoms, the equation depicts how the reactants become the products.

Chemical formulas serve as a representation of the reactants and products, and each element is represented by its chemical symbol.

The chemical symbols for the components of the reaction are represented by A, B, and X.

Options A, B, C, and D offer potential elemental arrangements for A, B, and X.

Because B cannot be represented by 0, only Options A (A = Mg, B = Cl, X = O) and C (A = Na, B = Cl, X = O) are viable choices (Option D). Magnesium, chlorine, and oxygen are represented by Option A, while sodium, chlorine, and oxygen are represented by Option C.

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