draw and name the organic product of the given reaction. a benzene ring. hno3−→−−−−h2so4

The pH of a solution of sulphuric acid that has hydronium ion concentration is 4.26.

pH of any solution is define as the negative logarithm of the concentration of H⁺ ion present in any solution, i.e.

pH = -log[H⁺]

In the question, it is given that:

Concentration of hydronium ion or H⁺ ion = 5.45×10⁻⁵ M

So, pH will be:
pH = -log(5.45×10⁻⁵)

pH = -(-4.26)

pH = 4.26

Hence required pH is 4.26.

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Answer:

18

Explanation:

use the equation 2n^2

a. The complete ionic equation when a saturated solution of potassium sulfide is mixed with a saturated solution of chromium (iii) nitrate is 4 K⁺ (aq) + 2 S²⁻ (aq) + Cr³⁺ (aq) + 3 NO₃⁻ (aq) → Cr₂S₃ (s) + 6 K⁺ (aq) + 6 NO₃⁻ (aq).

b. The net ionic equation after canceling out spectator ions (K⁺ and NO₃⁻) is 2 S²⁻ (aq) + Cr³⁺ (aq) → Cr₂S₃ (s).

When a saturated solution of potassium sulfide (K₂S) is mixed with a saturated solution of chromium(III) nitrate (Cr(NO₃)₃), a complete ionic equation and a net ionic equation can be written as follows:

First, let's write the balanced molecular equation:

2 K₂S (aq) + Cr(NO₃)₃ (aq) → Cr₂S₃ (s) + 6 KNO₃ (aq)

Now, the complete ionic equation:

4 K⁺ (aq) + 2 S²⁻ (aq) + Cr³⁺ (aq) + 3 NO₃⁻ (aq) → Cr₂S₃ (s) + 6 K⁺ (aq) + 6 NO₃⁻ (aq)

Lastly, the net ionic equation after canceling out spectator ions (K⁺ and NO₃⁻):
2 S²⁻ (aq) + Cr³⁺ (aq) → Cr₂S₃ (s)

So, the net ionic equation represents the formation of an insoluble chromium sulfide (Cr₂S₃) precipitate when a saturated solution of potassium sulfide is mixed with a saturated solution of chromium(III) nitrate.

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The boiling point of CHCl₃ at a pressure of 101.325 kPa is 61.8°C (143.24°F).

The boiling point is the temperature at which the pressure exerted on a liquid by the environment equals the pressure exerted by the vapor of the liquid. Under these conditions, the application of heat converts the liquid to vapor without raising the temperature.

At any temperature, the liquid partially vaporizes into the space above until the pressure exerted by the vapor reaches a characteristic value called the vapor pressure of the liquid at that temperature. As the temperature rises, the vapor pressure increases. At boiling point, vapor bubbles form in the liquid and rise to the surface.

The boiling point of a liquid changes along the pressure. The normal boiling point is the temperature at which the vapor pressure equals normal atmospheric pressure at sea level (760 mm [29.92 inches] of mercury). At sea level, water boils at 100°C (212°F).

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The complete question is as follows:

What will the boiling point of CHCL3 be when the atmospheric pressure exerted on its surface is 101.325 KPa?

If the student was synthesizing aspirin in the lab and she calculated the mass of aspirin that should form as 11.74 g and when she weighed her aspirin product on the balance which was 2.63 g. The percent yield can be 22.4 %.

The amount of a product received from a reaction is indicated by the percent yield.

The theoretical yield is given, which is 11.74 g and the actual yield is given which is 2.63 g.

Now, we use the formula of the percentage (%) yield,

percentage (%) yield = \((\frac{ Actual yield }{ Theoretical yield } )\) × 100  

% yield = \((\frac{2.63}{11.74})\) × 100

% yield = 22.4 %

So, the percentage (%) yield is 22.4 %.

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Answer:

Electrons absorb energy from various sources (electricity) when they move from lower energy levels. (ground state) to higher energy levels (excited states).

Explanation:

When energy is absorbed by an electron. The trend that is expected in the relative frequency of light that is released when the electron returns to its ground state is the greater the energy absorbed, the higher the frequency of light emitted. The correct option is 1.

Energy is an entity that helps in doing every function of the body and outer the body. There are different types of energy present. The energy just transformed into different forms for different use.

In an electron, when energy is absorbed by the electron, It becomes unstable and moves to a higher energy level, and with the increase in the energy, the frequency of emission of light increases.

Thus, the correct option is 1. The greater the energy absorbed, the higher the frequency of light emitted.

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Answer:

chemical formula

Explanation:

Gold is found in various ionic compounds, but one of the most well-known and commercially significant compounds is gold chloride, also known as auric chloride or gold(III) chloride.

The chemical formula for gold chloride is AuCl₃. Gold chloride is an ionic compound composed of gold cations (Au³⁺) and chloride anions (Cl-). It is a yellow-orange solid that is highly soluble in water. Gold chloride can be formed by reacting the gold metal with chlorine gas or by dissolving the gold metal in aqua regia, which is a mixture of concentrated nitric acid and hydrochloric acid.

Gold chloride has several uses and applications. It is commonly used in the field of nanotechnology for the synthesis of gold nanoparticles. These nanoparticles have unique optical, electronic, and catalytic properties, making them valuable in various fields such as medicine, electronics, and materials science.

In addition to gold chloride, gold can also form other ionic compounds with different anions, such as gold bromide (AuBr), gold iodide (AuI), gold sulfide (Au2S), and gold cyanide (AuCN). These compounds have their own unique properties and applications.

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The new pressure when the volume has been increased : 152.26 mmHg

Given

V₁ = 25 ml

P₁ = 525 Maggie ? (maybe you mean mmHg)

V₂ = 86.2 ml

Required

The new pressure

Solution

Boyle's Law  

At a constant temperature, the gas volume is inversely proportional to the pressure applied  

\(\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}\)

\(\tt P_2=\dfrac{P_1.V_1}{V_2}\\\\P_2=\dfrac{525~mmHg\times 25~ml}{86.2~ml}\\\\P_2=152.26~mmHg\)

(A) The (H3O+) of a .14 molar solution of HOCL is 1.20 x 10^-5 M.

(B) The net ionic equation for the reaction of NaOCl with water is: NaOCl + H2O → HOCl + Na+ + OH-. The equilibrium constant for this reaction can be calculated using the acid dissociation constant (Ka) for HOCl and the autoionization constant (Kw) for water: Keq = (Ka/[OH-]) = 2.9 x 10^7.

(C) The pH of the solution made by combining 40.0 milliliters of .14-molar HOCl and 5.0 milliliters of .56-molar NaOH is 8.74.

(D) 8.16 grams of solid NaOCl must be added to 50.0 milliliters of .20-molar HOCl to obtain a buffer solution that has a pH of 7.49.

(A) The first step is to set up the equation for the dissociation of HOCl:

HOCl + H2O ⇌ H3O+ + OCl-

The acid dissociation constant (Ka) is given as 3.2 x 10^-8.

Using the equation for Ka, we can solve for [H3O+]:

Ka = [H3O+][OCl-]/[HOCl]

[H3O+] = √(Ka x [HOCl]) = 1.20 x 10^-5 M.

(B) The balanced net ionic equation for the reaction of NaOCl with water is: NaOCl + H2O → HOCl + Na+ + OH-. The equilibrium constant expression can be written as:

Keq = [HOCl][Na+][OH-]/[NaOCl][H2O]

Since water is in excess, we can assume that its concentration is constant and can be omitted from the equation. Also, assuming complete dissociation of NaOCl, we can write [Na+] = [OCl-]. Thus,

Keq = [HOCl][OH-]/[NaOCl]

Using the acid dissociation constant (Ka) for HOCl, we can write [HOCl][OH-] = Ka x [OCl-].

Substituting this in the Keq expression, we get:

Keq = (Ka/[OH-]) = 2.9 x 10^7.

(C) The balanced equation for the reaction of HOCl with NaOH is:

HOCl + NaOH → NaOCl + H2O

This is a neutralization reaction between an acid and a base.

First, we calculate the moles of HOCl and NaOH used:

Moles of HOCl = 0.14 M x 0.040 L = 0.0056 mol

Moles of NaOH = 0.56 M x 0.0050 L = 0.0028 mol

The limiting reagent is NaOH, which reacts completely with the available HOCl.

The moles of HOCl that remain unreacted = 0.0056 - 0.0028 = 0.0028 mol

The concentration of the remaining HOCl in the final solution = 0.0028 mol/0.045 L = 0.0622 M.

Using the equation for Ka and [H3O+] = √(Ka x [HOCl]), we can calculate the pH of the final solution as 8.74.

(D)The pH of the solution made by combining 40.0 milliliters of .14-molar HOCl and 5.0 milliliters of .56-molar NaOH is 8.74.

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Matter are anything that is made up of atoms. The quantity of matter can be observed only on the basis of mass and volume calculation. Therefore, the correct option is option A.

Matter is a substance that has some mass and can occupy some volume. The matter is mainly used in science. Matter can be solid, liquid or gas.

Matter is anything that is made up of atoms. Anything around us that can be physically seen and touched are matter. Ice, water and water vapors are example of matter.

So as we saw that matter has some mass so mass can be measured in gram only. Mass can also be represented as number of molecules. We also saw that matter occupy some volume and that volume is measured only in liter.  l nm = 1.0 × 10⁻⁶ fm

540 nanometers =  540 × 1.0 × 10⁻⁶ fm

                             =  5.40 x 10⁻⁴fm

Therefore, the correct option is option A.

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Answer:

B

Explanation:

Baking soda is sodium bicarbonate, which is a base. Vinegar is made up of water and acetic acid, which is an acid. When you combine these, a chemical reaction occurs, creating carbon dioxide and water.

Answer:

B . Bubbles form when baking soda is added to vinegar and mixed.

Explanation:

I did this before and put it into a water bottle with a balloon on top and it blew the balloon up. It was really cool! :)

Answer:

True. Ripening of a banana is a chemical change

The compound's molecular formula contains three carbon atoms.

Step 1: The empirical formula CFBrO indicates that there is one carbon atom in the compound.

Step 2: To determine the number of carbon atoms in the molecular formula, we need to find the ratio between the empirical formula mass and the molar mass.

The empirical formula mass is calculated by adding the atomic masses of the constituent elements in the empirical formula:

C = 12.01 g/mol

F = 18.99 g/mol

Br = 79.90 g/mol

O = 16.00 g/mol

Empirical formula mass = (1 x 12.01) + (1 x 18.99) + (1 x 79.90) + (1 x 16.00) = 126.9 g/mol

Next, we divide the molar mass (253.8 g/mol) by the empirical formula mass (126.9 g/mol) to find the ratio:

253.8 g/mol ÷ 126.9 g/mol = 2

This ratio indicates that the compound's molecular formula contains two empirical formula units. Since each empirical formula unit contains one carbon atom, the compound's molecular formula must contain two carbon atoms.

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To produce 84.3 g of silver chloride, we need 3.53 x 10^23 formula units of silver. The number of formula units of silver needed to react with chlorine to produce 84.3 g of silver chloride, we first need to determine the molar mass of silver chloride.

The molar mass of silver chloride (AgCl) can be calculated by adding the atomic masses of silver (Ag) and chlorine (Cl) together. The atomic mass of silver is 107.87 g/mol, and the atomic mass of chlorine is 35.45 g/mol.
The molar mass of AgCl = 107.87 g/mol + 35.45 g/mol = 143.32 g/mol.

moles = mass/molar mass
So, moles of AgCl = 84.3 g / 143.32 g/mol = 0.588 moles.
Since the balanced chemical equation for the reaction between silver and chlorine to form silver chloride is:
2 Ag + Cl2 → 2 AgCl
We know that 2 moles of Ag react with 1 mole of Cl2 to produce 2 moles of AgCl.

The number of moles of Ag required to produce 0.588 moles of AgCl is: moles of Ag = 2/2 x moles of AgCl = 0.588 moles of Ag . The number of formula units of Ag required can be calculated by multiplying the number of moles of Ag by Avogadro's number (6.022 x 10^23).
Number of formula units of Ag = 0.588 moles x 6.022 x 10^23 = 3.53 x 10^23 formula units of Ag.

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The molar concentration of a 12% sodium chloride solution is approximately 2.05 M.

To determine the molar concentration of a 12% sodium chloride solution, we need to convert the given percentage concentration into molarity.

First, we need to understand that the percentage concentration refers to the mass of the solute (sodium chloride) relative to the total mass of the solution.

In this case, a 12% sodium chloride solution means that there are 12 grams of sodium chloride in 100 grams of the solution.

To convert this into molar concentration, we need to consider the molar mass of sodium chloride, which is 58.5 g/mol.

We can start by calculating the number of moles of sodium chloride in 12 grams:

Moles of sodium chloride = mass of sodium chloride / molar mass of sodium chloride

Moles of sodium chloride = 12 g / 58.5 g/mol = 0.205 moles

Next, we calculate the volume of the solution in liters using the density of the solution. Since the density is not provided, we assume a density of 1 g/mL for simplicity:

Volume of solution = mass of solution / density

Volume of solution = 100 g / 1 g/mL = 100 mL = 0.1 L

Finally, we calculate the molar concentration (Molarity) by dividing the number of moles by the volume in liters:

Molar concentration = moles of solute / volume of solution

Molar concentration = 0.205 moles / 0.1 L = 2.05 M

Therefore, the molar concentration of a 12% sodium chloride solution is approximately 2.05 M.


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Answer:

Particles has the highest kinetic energy when they are in the gaseous state. Kinetic energy is related to heat (also called thermal energy

Answer:

The Greeks invented the two main components of watermills, the waterwheel and toothed gearing, and used, along with the Romans, undershot, overshot and breastshot waterwheel mills.

Explanation:

please mark me brainliest

Mg + HCl  → MgCl2 + H2. Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas.

Thus, Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas and magnesium chloride salt when it combines with diluted hydrochloric acid.

The gas produced by the reaction of magnesium with diluted HCl is hydrogen gas. The gas produced by the reaction of magnesium with diluted HCl is hydrogen gas.

The experiment produces very flammable hydrogen gas. No ignition source should be available to students.

Thus, Mg + HCl  → MgCl2 + H2. Salt and hydrogen gas are created when metal and acid combine. Magnesium produces hydrogen gas.

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eg no 1= Calcium

charge=> 2+

symbol Ca

eg no 2= Hydroxide

charge 1-

symbol=>OH

sorry I only know 2 eg

When 156.32 g of barium hydroxide is reacted, approximately 142.34 g of aluminum hydroxide can be produced, based on the balanced chemical equation and stoichiometry.

To determine the amount of aluminum hydroxide that can be produced when 156.32 g of barium hydroxide is reacted, we need to consider the balanced chemical equation for the reaction and use stoichiometry.

The balanced chemical equation for the reaction is:

Ba(OH)2 + 2AlCl3 → 2Al(OH)3 + 3BaCl2

From the balanced equation, we can see that for every 1 mole of Ba(OH)2, 2 moles of Al(OH)3 are produced.

First, we need to calculate the number of moles of barium hydroxide (Ba(OH)2) in 156.32 g:

Molar mass of Ba(OH)2 = (137.33 g/mol + 2(16.00 g/mol + 1.01 g/mol)) = 171.34 g/mol

Moles of Ba(OH)2 = mass / molar mass = 156.32 g / 171.34 g/mol = 0.911 mol

Now, using the stoichiometry of the balanced equation, we can determine the moles of aluminum hydroxide (Al(OH)3) produced:

Moles of Al(OH)3 = 2 × Moles of Ba(OH)2 = 2 × 0.911 mol = 1.822 mol

Finally, to convert the moles of aluminum hydroxide to grams, we need to multiply by the molar mass of Al(OH)3:

Molar mass of Al(OH)3 = (26.98 g/mol + 3(16.00 g/mol + 1.01 g/mol)) = 78.00 g/mol

Mass of Al(OH)3 = Moles of Al(OH)3 × molar mass = 1.822 mol × 78.00 g/mol = 142.34 g

Therefore, when 156.32 g of barium hydroxide is reacted, approximately 142.34 g of aluminum hydroxide can be produced.

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The addition of water vapor to the system will not directly affect the amount of N₂ produced in the given reaction.

The balanced equation shows that the production of N₂ is determined by the stoichiometry of the reactants, namely 4 moles of ammonia (NH₃) reacting with 3 moles of oxygen (O₂) to produce 2 moles of nitrogen gas (N₂). The presence of water vapor (H₂O) does not participate in the reaction as a reactant or a product. Therefore, the amount of N₂ formed will remain the same regardless of the presence or addition of water vapor.

However, it is worth noting that the addition of water vapor may indirectly affect the reaction by altering the conditions or equilibrium of the system. For example, the presence of water vapor could influence the reaction kinetics, the temperature, or the concentration of reactants. These factors could potentially impact the rate of the reaction or the position of the equilibrium, which might have an indirect effect on the final amount of N₂ produced. But without specific information about the conditions and the influence of water vapor, it cannot be determined how the amount of N₂ will be affected in this particular scenario.

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Answer:

atoms relative motion slow down and begin to vibrate in place

Answer:

Approx. 20 moles of iron.

Explanation:

There are approx. 6.022 x 10.23 iron atoms per mole of iron. In this quantity, The number of iron atoms has a mass of

55.85 ⋅ g.

The compound OH CH.CH.CHCH. CH,CH,CH is named 3-heptanol because it has a chain of seven carbon atoms with an OH group attached to the third carbon atom.

The compound OH CH.CH.CHCH. CH,CH,CH is named 3-heptanol.

To understand why it is named 3-heptanol, let's break down the name step by step:

1. The OH group at the beginning of the compound indicates that it is an alcohol, specifically a hydroxyl group (-OH) attached to a carbon chain.

2. The CH.CH.CHCH part of the compound indicates a chain of four carbon atoms. The numbers in front of the CH groups represent the positions of these carbon atoms in the chain.

3. Since there is an OH group attached to the third carbon atom in the chain, the compound is named 3-heptanol. The "hept" in the name refers to the seven carbon atoms in the chain, and the "ol" at the end indicates that it is an alcohol.

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Soaps clean up dirt by acting as emulsifying agents. The nonpolar chain in the soap is attracted to the dirt and the ionic end is attracted to the water. Thus, the soap creates b)dispersed droplets that wash the dirt away with the water.

In the field of chemistry, soap can be described as a washing material that is made by adding a base to a fat or oil.

As it contains fats and oils, soaps work by acting as an emulsifying agent.

The non-polar fats and oil absorb any kind of dirt and kill microorganisms.

When water is added to soap, the mixture acts as a dispersed droplet to absorb dirt particles in it. In this way, any kind of dust, microorganisms and dirt are removed.

The correct question format is:

Soaps clean up dirt by acting as emulsifying agents. The nonpolar chain in the soap is attracted to the dirt and the ionic end is attracted to the water. Thus, the soap creates ............. that wash the dirt away with the water.

a) floating bubbles

b) dispersed droplets

c)solid precipitate

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Under low stress in the Polymer Cross-linking: Slime Lab, the liquid flows slowly.

In the Slime Lab experiment, this process is carried out by mixing a borax solution with a solution of polyvinyl alcohol (PVA) and a fluorescent dye.

As the borax ions react with the PVA chains, they form cross-links that cause the mixture to thicken and become more viscous.

Under low stress, the slime will flow slowly due to the increased viscosity caused by the cross-linking process.

As the stress on the slime is increased, such as by pulling or stretching, the cross-links will break and the slime will become more fluid.

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Lewis structure is the electron dot representation of the atomic and molecular bonds of the molecules. Trigonal planar is the shape of the formaldehyde.

A trigonal planar shape of the molecule is the arrangement of the central atom attached to the other three atoms making them look triangle-shaped.

The attachment of the carbon to the two hydrogens and one oxygen atom can be given by the VSEPR theory. The number of the electron pair in the molecule is 3 making them \(\rm sp_{2}\) hybridized and hence have a trigonal planar shape.

Therefore, option D.  trigonal planar is the shape.

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