a different scientist makes zinc iodide by the same method. the scientist obtains 12.5g of zinc iodide. the percantage yeild in this reaction is 92.0% whta is the maximum theoretical mass of zinc iodide produced in this reaction?

endpointVinegar is also called as acetic acid, and we can write it in the following way CH3COOH. When we talk about titration, it refers to the amount of base needed to neutralize the acid. So there is a chemical reaction involved. The reaction between vinegar and NaOH base is as follows:

We have a 1 to 1 ratio, i.e. to neutralize x moles of vinegar we need the same moles of NaOH. Let's calculate how many moles of acid are believed to be in the solution. We will use the molarity = 0.78M = 0.78 mol/L.

Then we need 0.016 moles of NaOH, the volume required will be:

So, the volume that would be needed of NaOH to see an end point is 17.23 mL

Answer:

yes you are doing it right my chemistry teacher said said so

The weight percentage of piperazine in the commercial product is approximately 92.71%.

To calculate the weight percentage (wt%) of piperazine in the commercial product, we need to determine the mass of piperazine present in the precipitate and then calculate its percentage relative to the initial mass of the commercial product.

Given:

Mass of commercial product = 0.288 g

Mass of precipitate containing piperazine = 0.555 g

To find the mass of piperazine, we subtract the mass of the precipitate from the mass of the commercial product:

Mass of piperazine = Mass of precipitate - Mass of commercial product

= 0.555 g - 0.288 g

= 0.267 g

Now, we can calculate the weight percentage of piperazine:

wt% of piperazine = (Mass of piperazine / Mass of commercial product) x 100

Substituting the values:

wt% of piperazine = (0.267 g / 0.288 g) x 100

≈ 92.71%

Therefore, the weight percentage of piperazine in the commercial product is approximately 92.71%.

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Answer is C

A synthesis reaction looks like this:

A+ B → AB

Answer:

Internal Cue

Explanation:

Answer:

an internal cue

Explanation:

just think

The sequence represents the portion of the protein molecule coded for by the mRNA sequence is Leucine-lysine-cysteines phenylalanine. The correct option is c.

The order of amino acids in a protein from the N-terminus (methionine) to the C-terminus is specified by mRNA codons, which are read from 5' to 3'. 5'-AUGAUCUCGUAA-5' is the mRNA sequence.

The mRNA interacts with a specialized complex known as a ribosome, which "reads" the mRNA nucleotide sequence. A codon is a three-nucleotide sequence that normally codes for one amino acid.

Therefore, the correct option is c, Leucine-lysine-cysteines phenylalanine.

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The question is incomplete. Your most probably complete question is given below:

threonine-lysine-leucine-serine

arginine lysine leucine cystiene

Leucine-lysine-cysteines phenylalanine

Cisteine phenylalanine glutamic acid serine.

The energy required for 100.0 g of iron to change from 25 °C to 50 °C is 1122.25 J.

To calculate the energy required for 100.0 g of iron to change temperature from 25 °C to 50 °C, we can use the formula for heat transfer:

q = m * C * ΔT

where:

Given:

Mass of iron (m) = 100.0 g

Specific heat capacity of iron (C) = 0.449 J/(g°C)

Change in temperature (ΔT) = Final temperature - Initial temperature = 50 °C - 25 °C = 25 °C

Plugging in the given values into the formula:

q = 100.0 g * 0.449 J/(g°C) * 25 °C

q = 1122.25 J

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5 examples of covalent compounds hydrogen (H₂), oxygen (O₂), nitrogen (N₂), water (H₂O), and methane(CH₄) due to high ionization energy.

Due to their extremely high ionization energy, some elemental atoms are unable to surrender their electrons. While some people might not be able to gain an electron due to low electron affinity. The only other option is to share electrons so that neither a shortfall nor an excess of electrons exists. Covalent bonds are the next bonds to form in such a configuration. It is important to keep in mind that covalent bonds share already existing electrons amongst the atoms rather than contributing to the production of new ones. Covalently bound elements or compounds cannot conduct electricity because there are no free electrons. Covalent bonds, however, are incredibly strong, which is why they produce the strongest elements or compounds.

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Explanation:

It's 112-100÷100*100= so 112-100 it's 12÷100 its 0.12 and *100 it's 12%

Balancing equations with bubbles can be confusing, but it can be done using the same principles as balancing regular equations.

When balancing equations with bubbles, you need to make sure that the number of atoms of each element is the same on both sides of the equation, just like with regular equations. The only difference is that instead of writing the number of atoms directly next to the element symbol, you write it in a bubble above or below the symbol.

For example, if you have the equation H2 + O2 → H2O and you want to balance it with bubbles, you would write:

H O
H2 + O2 → H2O
2 2
2

The bubbles show that there are two atoms of hydrogen and two atoms of oxygen on both sides of the equation. To balance the equation, you would add a coefficient of 2 in front of H2O:

H O
H2 + O2 → 2H2O
2 2
4

Now the equation is balanced with bubbles.

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Answer: 2) Chloroform & Caustic potash

Explanation:

The carbylamine reaction is a kind of chemical test which is done to detect primary amines in an unknown solution. It cannot detect secondary and tertiary amines.

The reaction involves the heating with up of the unknown solution with alcoholic potassium hydroxide or caustic potash and the chloroform.

In the presence of primary amine, the production of isocyanide results.

Answer:

renewable resources are abundant???

Answer:

renewable resources are abundant!

Explanation:

Answer:

225.4 g

Explanation:

The equation of the reaction is;

Zn(s) + FeNiO(s) ------> ZnFeNiO(s)

Since FeNiO is in excess then Zn must be the limiting reactant.

Molar mass of Zn =  65.38gmol-1

Number of moles of Zn reacted = 75g/65.38gmol-1 =1.15 moles

If 1 mole of Zn yields 1 mole of ZnFeNiO

1.15 moles of Zn yields 1.15 moles of ZnFeNiO

Mass of ZnFeNiO produced= 196gmol-1 * 1.15moles = 225.4 g

NaCl, as an electrolyte, dissociates almost completely to give 'Na(+) and Cl(-)' ions, whereas glucose, as a non-electrolyte .

A solute's freezing point is completely based on its concentration, not on its mass or chemical composition. A typical instance of freezing point depression is when salt reduces the freezing point of water in cold weather.

Frost point When solute molecules are added to a solvent, a colliding phenomenon known as depression results.

As a result, the freezing temperatures of all solutions are lower than those of pure solvents and are inversely related to the solute's molality.

study the freezing point.

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Answer:

c

Explanation:

Tetraphosphorus trisulfide is the correct name for \(P_4S_3\). Hence, option C is correct.

IUPAC nomenclature is based on naming a molecule's longest chain of carbons connected by single bonds, whether in a continuous chain or in a ring.

Tetraphosphorus trisulfide is the correct name for \(P_4S_3\).

Hence, option C is correct.

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The answer is most likely D

Answer: 2.6 M

Explanation:

Answer:

Our energy supply comes mainly from fossil fuels, with nuclear power and renewable sources rounding out the mix.

The energy associated with an object's motion is called kinetic energy. Kinetic energy is the energy of motion. All moving objects have kinetic energy

Explanation:

Answer:

Kinetic energy is the energy of motion. All moving objects have kinetic energy. When an object is in motion, it changes its position by moving in a direction: up, down, forward, or backward. As he winds up and releases the ball, the stored energy is changed into kinetic energy, the energy of motion!So that , energy comes from and how it is affecting change or putting an object in motion.

Explanation:

I ain't flashligh

The difference in the number of covalent bonds between nitrogen (N2) and oxygen (O2) is due to their electronic configurations and the stability they achieve by forming specific types of bonds.

In the case of nitrogen (N2), each nitrogen atom has five valence electrons. In order to achieve a stable electronic configuration, nitrogen needs to share three electrons with another nitrogen atom. This is achieved through the formation of a triple covalent bond, where each nitrogen atom shares three electrons with the other.

On the other hand, oxygen (O2) has six valence electrons per oxygen atom. To achieve a stable electronic configuration, each oxygen atom needs to share two electrons with another oxygen atom. This is achieved through the formation of a double covalent bond, where each oxygen atom shares two electrons with the other.

The reason for this difference lies in their atomic orbitals. Nitrogen has three unpaired electrons in its 2p orbitals, allowing it to form three covalent bonds. Oxygen, on the other hand, has two unpaired electrons in its 2p orbitals, allowing it to form two covalent bonds.

Additionally, the bond strength also plays a role. The triple bond in N2 is stronger than the double bond in O2, requiring more energy to break. This is due to the overlap of atomic orbitals and the sharing of electrons in the bonding process.

In summary, the difference in the number of covalent bonds between N2 and O2 is a result of their electronic configurations and the stability they achieve through specific bond formations based on their valence electrons and atomic orbitals.

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The pressure of hydrogen gas formed in mmHg is 716.24 mmHg.

Based on the information provided, we can use the formula for Dalton's Law of Partial Pressures which states that the total pressure of a gas mixture is equal to the sum of the partial pressures of each gas present in the mixture.
In this case, the total gas pressure collected over water is 740.0 mmHg. We know that the gas we are interested in is hydrogen gas, so we need to find the partial pressure of hydrogen gas in the mixture.
To do this, we need to subtract the vapor pressure of water at 25.5°C from the total pressure to get the pressure of the gas. According to a vapor pressure chart, the vapor pressure of water at 25.5°C is 23.76 mmHg.
Thus, the partial pressure of hydrogen gas can be calculated as:
Partial pressure of hydrogen gas = Total gas pressure - Vapor pressure of water
Partial pressure of hydrogen gas = 740.0 mmHg - 23.76 mmHg
Partial pressure of hydrogen gas = 716.24 mmHg
Therefore, the pressure of hydrogen gas formed in mmHg is 716.24 mmHg.

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Answer:

https://download.cnet.com/1-Click-Answers/3000-2378_4-10060189.html

Explanation:

When a smoker inhales from a cigarette, the temperature at the tip can reach approximately 600-900 degrees Fahrenheit (315-480 degrees Celsius).

This high temperature is a result of the combustion process that occurs as the tobacco is burned. As the smoker draws in air, oxygen reacts with the burning tobacco, causing it to reach such extreme temperatures. The heat generated at the tip of the cigarette is a reflection of the intense chemical reactions taking place during smoking. It is important to note that these high temperatures contribute to the release of harmful substances, including carcinogens and toxic chemicals, which are then inhaled into the smoker's lungs.

The adverse health effects associated with smoking are well-documented, making it crucial for individuals to quit smoking or avoid tobacco use altogether to safeguard their well-being.

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To express lnA1, lnA2, and lnA3 in terms of lnA0, εA,1, εA,2, and εA,3, we can use the given equations: From the equation At = A + gt + At, we can rewrite it as At - gt = A + At. Taking the natural logarithm (ln) of both sides, we have ln(At - gt) = ln(A + At).

Similarly, from the equation At = rhoAA~t−1 + ϵA,t,−1, we can rewrite it as At - rhoAA~t−1 = ϵA,t,−1. Taking the natural logarithm (ln) of both sides, we have ln(At - rhoAA~t−1) = ln(ϵA,t,−1). Now, let's express lnA1, lnA2, and lnA3 in terms of ln A0, εA,1, εA,2, and εA,3. Expressing lnA1:  

- From equation 1, we have ln(A1 - g1t) = ln(A0 + A1).

Rearranging the equation, we get ln(A1 - g1t) - ln(A1) = ln(A0).
- From equation 2, we have ln(A1 - rhoAA~1−1) = ln(εA,1).

Rearranging the equation, we get ln(A1 - rhoAA~1−1) - ln(A1) = ln(εA,1).

Therefore, lnA1 = ln(A0) + ln(εA,1).

Calculating the expected values of lnA1, lnA2, and lnA3: - Taking the expected value (E) of equation 1, we have E[ln(A1 - g1t)] = E[ln(A0 + A1)]. Since g1t is constant, we can write it as E[ln(A1)] - g1t = ln(A0 + E[A1]).

Rearranging the equation, we get E[ln(A1)] = ln(A0 + E[A1]) + g1t.

- Taking the expected value (E) of equation 2, we have E[ln(A1 - rhoAA~1−1)] = E[ln(εA,1)].  Since rhoAA~1−1 is constant, we can write it as E[ln(A1)] - rhoAE[A~1−1] = ln(εA,1).

Rearranging the equation, we get E[ln(A1)] = ln(εA,1) + rhoAE[A~1−1].

Therefore, the expected value of lnA1 is given by E[lnA1] = ln(A0 + E[A1]) + g1t = ln(εA,1) + rhoAE[A~1−1]. Similarly, we can calculate the expected values of lnA2 and lnA3 using the corresponding equations and constants.
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1. Sodium Carbonate: Yes, the solubility of sodium carbonate changes with pH. At a pH of 11.2, the solubility of sodium carbonate is at its highest, with a solubility of 111.1 g/L.

At a pH below 11.2, the solubility of sodium carbonate decreases; at a pH above 11.2, the solubility of sodium carbonate increases, but not as dramatically as at a pH of 11.2.

This is due to the fact that at a pH of 11.2, the concentration of carbonate ions is at its highest, and the solubility of sodium carbonate is largely dependent on the concentration of carbonate ions.

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Operators analyze the ability of a treatment process to remove or an activate oocysts by coagulation and flocculation.

Coagulation and flocculation are methods that are used to separate the suspended solids portion from the water. Suspended particles may vary in source, charge, particle size, shape, and density. Correct application of coagulation and flocculation usually depends upon these factors.

Coagulation is also defined as the destabilization of colloidal particles brought about by the addition of a chemical reagent called as coagulant. Flocculation is defined as the agglomeration of destabilized particles into micro-floc and after into bulky floccules which can be settled called floc.

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The values of z , n ,a for a pair of atoms can often be compared as follows: Atomic mass, the principal quantum number (n), and the atomic number (z) (a).

The values of z, n, and a are crucial quantities that characterise an atom's characteristics. The number of protons in the nucleus, or the atomic number (z), specifies the element to which the atom belongs. The energy level and spatial distribution of electrons are determined by the principal quantum number (n), with larger values signifying greater distance from the nucleus and higher energy. The total number of protons and neutrons in the atom's nucleus, or atomic mass (a), defines the atom's overall mass. Comparing and contrasting various atoms, such as those that belong to various elements, isotopes, or ionisation states, is possible using the values of z, n, and a. They are essential to comprehending the atomic level structure and behaviour of matter.

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In the balanced equation for the reaction\(MnO_{4}^-(aq) + Fe_{2} ^+(aq) -- > Mn_{2}^+(aq) + Fe_{3}^+(aq)\) in basic aqueous solution, the coefficient for OH−(aq) is 4.

To balance the given equation in basic aqueous solution, we need to ensure that the number of atoms of each element is equal on both sides of the equation and that the overall charge is balanced. Here's how the equation is balanced:

First, we balance the atoms other than hydrogen and oxygen. The equation becomes:

\(MnO_{4}^-(aq) + 5Fe_{2} ^+(aq)+8H_{2}O(l) -- > Mn_{2}^+(aq) +5 Fe_{3}^+(aq)\)

Next, we balance the oxygen atoms by adding water molecules (H2O):

\(MnO_{4}^-(aq) + 5Fe_{2} ^+(aq)+8H_{2}O(l) -- > Mn_{2}^+(aq) +5 Fe_{3}^+(aq)+4H_{2}O(l)\)

Now, we balance the hydrogen atoms by adding OH−(aq) ions:

\(MnO_{4}^-(aq) + 5Fe_{2} ^+(aq)+8H_{2}O(l) -- > Mn_{2}^+(aq) +5 Fe_{3}^+(aq)+4H_{2}O(l)+4OH^-(aq)\)

Therefore, in the balanced equation, the coefficient for OH−(aq) is 4. This balances the hydrogen atoms and ensures that the equation is balanced in basic aqueous solution.

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