A chemist want to prepare a solution containing (soluble) silver ions. Which salt should they use? silver nitrate AgCI AgOH silver carbonate 2 pts

Answer:

3.25 Moles of Sulfur 8= 833.69 Grams

Explanation: I assumed you meant sulfur

4.) Pb^+2 and CrO4^-2

When Pb^+2 and CrO4^-2 ions are dissolved in water, they will dissociate into their individual ions. The equation for this is:

PbCrO4 --> Pb^+2 + CrO4^-2

It's worth noting that these equations are showing the dissociation of the ionic compounds in aqueous solution. The degree of dissociation depends on the nature of the compound and the conditions of the solution, and it may not be 100%.

Explanation:

Metaloids and nonmetals are more likely to have the properties of liquids and gases.Though they can be elements and compounds like metals, it is less likely for you to see metaloids and nonmetals in a solid state like metals.

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1284.689 grams of sodium nitrate will be produced from 15.1 moles of silver nitrate.

To determine how many grams of sodium nitrate will be produced from 15.1 moles of silver nitrate, we need to perform a balanced equation and stoichiometry calculation.

The balanced equation for the reaction between silver nitrate and sodium chloride to form silver chloride and sodium nitrate is:

AgNO3 (aq) + NaCl (s) → AgCl (s) + NaNO3 (aq)

We know that 15.1 moles of silver nitrate will react with the stoichiometric amount of sodium chloride, which is 1 mole of sodium chloride for every 1 mole of silver nitrate.

So, we can calculate the moles of sodium nitrate that will be produced by multiplying the moles of silver nitrate by the coefficient of sodium nitrate in the balanced equation:

15.1 moles AgNO3 * 1 mole NaNO3 / 1 mole AgNO3 = 15.1 moles NaNO3

To convert the moles of sodium nitrate to grams, we can use the molar mass of sodium nitrate, which is 84.99 g/mol.

15.1 moles NaNO3 * 84.99 g/mol = 1284.689 g

So, 1284.689 grams of sodium nitrate will be produced from 15.1 moles of silver nitrate.

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The ketal derived from ethylene glycol and cyclohexanone can be drawn as follows. The two reactant molecules are shown in the center of the diagram.

The ethylene glycol molecule has two oxygen atoms, each of which is bound to two hydrogen atoms. The cyclohexanone molecule has a ring of six carbon atoms, each of which is bound to one hydrogen atom and one oxygen atom.

The two molecules are connected through a single bond between the oxygen atom of ethylene glycol and the carbon atom of cyclohexanone. The resulting product is a molecule with two oxygen atoms, each of which is bound to two hydrogen atoms, and a ring of six carbon atoms, each of which is bound to two hydrogen atoms and two oxygen atoms. This molecule is the ketal derived from ethylene glycol and cyclohexanone.

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The products of the reactants: 3 Cu +2 AlCl₃ → 3CuCl₂ + 2Al.

A chemical equation involves reactants, formed products, and an arrow indicating the direction of the reaction.

The chemical equation in which the number of atoms of every involved element is equal on both sides of the equation is known as a balanced chemical equation.

The law of conservation of mass needed to be followed by a chemical equation. The total mass of the elements on the reactant side will be equal to the total mass of elements on the product side in any balanced chemical equation.

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The water in the 5-gallon jug will fill 160 glasses.

According to the issue, a glass carries 4 ounces of water while a jug holds 5 gallons. We must convert the jug's volume from gallons to ounces and divide it by the volume of glass in order to determine how many glasses can be filled from it.

The water in the jug needs to be converted from gallons to ounces first. A gallon contains 128 ounces, hence 5 gallons of water equal 5×128 = 640 ounces.

The amount of water in the glass is then divided by the amount of water in the jug. If a glass holds four ounces, then 160 glasses can be filled from the jug, or 640 divided by four.

It's vital to note that we are converting between units in this problem using the rule that 1 gallon = 128 ounces. This conversion factor is based on the units of a gallon and an ounce, which are both common measurements.

We can simply convert gallons to ounces using this conversion factor, which enables us to perform the calculations required to get the solution.

In conclusion, by dividing the volume of the 5-gallon jug of water by the volume of glass, 160 glasses can be filled from it. To accomplish this, we must use a conversion factor to convert water measured in gallons to ounces.

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Answer:

In biological systems, matter is continuously changing states through chemical processes. For example, carbon in the form of the gas carbon dioxide is changed into glucose, a solid. This change, of course, occurs during photosynthesis.

Power being decentralized to a local subsidiary could make it challenging to transfer knowledge from one company to another. Global corporations, in contrast to multidomestic firms: Atomic mass

The quantity of protons and neutrons in a specific element's nucleus, known as its atomic mass, determines the element's chemical composition. The number of protons in the nucleus of an element is typically expressed as its atomic number. It is a measure of an element's average weight. The number of protons in the atom's nucleus as a whole.

The quantity of protons in an atom is known as its atomic number. It is known as the proton number for this reason. It is represented in calculations by the capital letter Z. The word "Z" is derived from the German word "zahl," which meaning "number of numerals" or "atom zahl," a more contemporary term that denotes an atomic number.

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C4H12 + 7 O2 → 4 CO2 + 6 H2O is the balanced chemical equation for the equation C4H12+O2 → CO2 + H2O.

Chemical reactions are representations of chemical processes using symbols, with the reactants & products identified by their unique chemical formulae. The five basic types of chemical reactions are combining, decomposing, single-replacement, double-replacement, and combustion.

An arrow representing a reaction merely shows that something has altered and transformed. The arrow points in the direction of the subsequent object from the preceding one (the one that added). The reaction arrow is used in the "equation of reaction". The thing that started the reaction is known as the reactant.

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for the given solvents Protic are  CH3OH, CH3CH2OH, acetic acid, H2O

Aprotic are  DMF, DMSO, acetonitrile, acetone.

Protic solvents are solvents that have a hydrogen atom bonded to an oxygen or nitrogen atom (such as water or ethanol), and are capable of forming hydrogen bonds with other molecules. These solvents can act as a hydrogen bond donor. Aprotic solvents, on the other hand, do not have a hydrogen atom bonded to an oxygen or nitrogen atom, and therefore do not have the ability to form hydrogen bonds.These solvents are not hydrogen bond donors. Examples of aprotic solvents include dimethyl sulfoxide (DMSO) and acetonitrile. Protic solvents are generally better solvents for protic compounds, while aprotic solvents are generally better solvents for aprotic compounds. They also have different effects on chemical reactions, as protic solvents.

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Lithium is a particularly reactive metal with a substantially higher storage density than lead batteries. Carbon and lightweight lithium are used to create the electrodes in lithium batteries.

These ions reach the anode during battery recharge. lithium batteries are significantly lighter. Thus, three Li+ ions are equivalent to one Al+3 ion. As a result, the energy storage capacity is increased by three units of charge provided by ions. Rechargeable batteries made of aluminum are inexpensive and have low flammability. Because aluminum is inert, it is safe to use and simple to use in a natural setting. Since aluminum has a higher volumetric capacity than lithium, it can store more energy per unit of volume. An electrochemical cell is one in which a chemical reaction aids in the generation of an electric current. Electricity is used in an electrolytic cell to carry out the chemical reaction that is not spontaneous. While no initiation is required for a spontaneous reaction.

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Answer:

below

Explanation:

Calculating the number of particles

1. The number of particles in a substance can be calculated using:

2. Number of particles = Avogadro constant × the amount of substance in mol.

3. Calculate the number of water molecules in 0.5 mol of water.

4. Number of water molecules = Avogadro constant x amount of substance in mol.

Answer: ignitable gases, such as propane and butane.

Explanation:

That propellant may have hazardous characteristics such as being flammable (spray paint and lubricating sprays) and/or toxic (e.g. chlorinated solvent sprays or cleaning products). Most propellants in spray cans are mixtures of ignitable gases, such as propane and butane.

The lewis structures for the molecule (CH₂NOH),  molecule (CH₃NH₂), and  molecule (CH₃CN) is attached below.

b. The bond order is 3.

c. CH₃NH₂

d. CH₃NH₂

The lewis structure are :

CH₂NOH

    H

     :     . .   . .        

H : C = N - O - H

                  °°

CH₃NH₂

    H

    |      ..

H - C - N - H

      |     |

      H    H

CH₃CN

   H

     |

H - C - C ≡ N :

      |

      H

B.  The bond order of the carbon- nitrogen bond in the N-methylidene hydroxylamine molecule is 2.

C. Species has the longest carbon-nitrogen bond is CH₃NH₂, methylamine.

D.  Species has the weakest carbon - nitrogen bond is CH₃NH₂, methylamine.

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The cells responsible for absorption in the small intestine are epithelial cells.

The small intestine is part of the digestive tract which consists of villi, circular muscles, longitudinal muscles, mucous lining, and epithelium. In the small intestine, a chemical digestion process occurs in which enzymes break down complex organic matter molecules into simpler molecules.

Epithelial cells are cells that line the surface of the small intestine in a cylindrical and cube-shaped intestine. On its surface there are villi that expand the surface of the intestine. Epithelial cells function to absorb simple molecules that have been digested chemically through enzymes secreted by the mucous glands, In addition, epithelial cells also play a role in protecting the intestine from microbial infections.

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Lattice enthalpy and hydration enthalpy both are always exothermic.

Lattice enthalpy is exothermic it involves the association of positively charged and negatively charged species. These species have an electrostatic forces of attraction to each other and can therefore released a lot of energy when bond is formed. [tex]Na^{+}[/tex] + [tex]Cl^{-}[/tex] → [tex]Na^{+}[/tex][tex]Cl^{-}[/tex]

Hydration enthalpy also exothermic in nature as water molecules surround the ions to form new forces of attraction. It depends upon ionic charge- greater the ionic charge stronger will be the ion-dipole interactions which is formed between the ions in the ionic lattice as well as water molecules.

[tex]M^{+}[/tex](g) + aq → [tex]M^{+}[/tex][tex]_{(aq)}[/tex]

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p-Ethylphenol (4-EP) is an organic compound with the formula C₂H₅C₆H₄OH.

It is one of three isomeric ethyl phenols. It is a white solid that occurs as an impurity in xylenol and is used as such in the manufacture of commercial phenolic resins. It is also a precursor of 4-vinylphenol. On average, 4-ethylphenol is most abundant in red wine. 4-Ethylphenol has also been detected but not quantified in several different foods such as B. Arabica coffee (Coffea arabica), beer, corn (Zea mays), milk (cattle), red raspberry (Rubus idaeus). Ethyl (ethyl group; Et):

Part of the molecular structure corresponding to ethane minus one hydrogen atom:

Sometimes abbreviated as - CH₂CH₃.

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The number of ammonia molecules made when 6 grams of hydrogen gas reacts with excess nitrogen is 4 mol.

Given equation,

3H2(g) + N2(g) → 2NH3(g)

If N2 is present in excess, increase the provided moles H2 even by mole ratio of H2 to NH3 within balanced equation such that moles H2 cancel, producing moles NH3.

⇒               6 mol H2 × (2 mol NH3/3 mol H2)

     ⇒                        = 4 mol NH3.

A chemical equation is a representation of the a chemical reaction in the shape of a chemical formula with an arrow going from reactant to product, and a balanced chemical equation has the same amount of atoms on both sides of the equation. The rule of the conservation of mass guides the balancing of such a chemical equation in this case.

A chemical reaction is the process in which one or even more compounds, defined as reactants, are converted into one or more unique entities, known as products. Chemical elements as well as compounds are examples of substances. A chemical reaction rearranges the component atoms of the reactants to produce various products. In this situation, hydrogen and nitrogen combine to generate ammonia. The reaction described above is an example of the a combination reaction.

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In the last flask, which contained 7.5g of baking soda initially, add vinegar. The fact that a reaction takes place proves that vinegar was the limiting reactant.

What limiting reagent is used in the balloon experiment?

Each flask should contain about 15 drops of bromothymol blue after the balloons have been removed. The first flask, which contained 2.0 baking soda initially, should now contain baking soda. The fact that a reaction takes place proves that baking soda was the limiting reactant. Calculating how much product each reactant can produce and identifying the limiting reagent by which one produces the least amount of product is one method of doing so.

Since oxygen is the limiting reactant, lowering the oxygen input is the best way to reduce soot.

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Oxoacids get more acidic as the number of oxidations on the halogen rises.

Perchloric acid is the most potent acid there is. As NH 4Br is an acidic salt, the solution will be acidic even though the Br ions come from a strong acid (HBr), but the NH 4 + ions come from a weak base (NH 3). Br2 is therefore regarded as a mild Lewis acid. Large acceptor atoms in soft acids have a low positive charge, are highly polarisable, and have poor electronegativity. One of the finest nucleophiles, the bromide ion is a poor base. It chooses to take on a nucleophilic role.

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Answer:

So the chemist can produce 418.7 grams of calcium phosphate.

Explanation:

We can start the problem by using the balanced chemical equation for the reaction and the stoichiometry to determine the amount of calcium phosphate that can be produced.

2K3PO4 (aq) + 3CaCl2 (aq) → Ca3(PO4)2 (s) + 6KCl (aq)

From the balanced equation, we can see that for every 2 moles of potassium phosphate (K3PO4) reacted, 1 mole of calcium phosphate (Ca3(PO4)2) is produced.

We are given that the chemist has 750.0 mL of a 1.8 M solution of potassium phosphate. We can convert this information into moles by using the formula:

moles = concentration x volume

moles = 1.8 M x (750.0 mL) / 1000 mL/L = 1.35 moles

To find the number of grams of calcium phosphate that can be produced we can use the molar mass of calcium phosphate which is 310.18 g/mol

grams = moles x molar mass

grams = 1.35 x 310.18 = 418.7 grams

So the chemist can produce 418.7 grams of calcium phosphate.

The molar concentration of of 8 gram of sodium sulfate(Na₂SO₄) dissolved in 210 ml of solution is 0.267.

Molar concentration is defined as the number of moles of a substance in 1 liter of solution. If molar concentration is denoted by M, number of mole denoted by "n" and volume of solution is denoted by V, then

M = n/V

Atomic weight of sodium sulfate(Na₂SO₄) = (23×2+32+16×4) = 142

142 gram is the weight of 1 mole of sodium sulfate(Na₂SO₄).

1 gram is the weight of 1/142 moles of Na₂SO₄

8 grams is the weight of (1×8)/142 = 0.056 moles

Volume of solution = 210 ml = 0.210 liter

So, the molar concentration,  M = 0.056/0.210

M = 0.267

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Answer: His decision to add a fence to prevent his cows from straying will result in a long-term decline in the bobcat population. Most likely, the cows are being preyed upon by the bobcats when they stray and are fed in return. Because the cows are unable to cross a particular limit when the farmer constructs a fence, bobcats have less opportunity to hunt the cows.

Explanation:

The amount, in moles, of carbon that are needed to produce 562 grams of carbon dioxide would be 12.77 mols.

Carbon dioxide can be produced from the reaction of carbon and oxygen according to the following equation:

[tex]C + O_2 --- > CO_2[/tex]

From the reaction, the mole ratio of carbon to carbon dioxide is 1;1.

Recall that: mole = mass/molar mass

Thus, the mole equivalent of 562 grams of carbon dioxide would be:

562/44 = 12.77 mol

This amount of carbon dioxide will also be the amount of carbon that will be required to react since the mole ratio is 1 to 1.

In other words, from the established stoichiometric mole ratio, the number of moles of carbon needed to produce 562 grams of carbon dioxide would be 12.77 mol.

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The balanced equation is 2Na + 2H2O → NaOH + H2

2Na+2H2O2NaOH+H2 is the balanced chemical equation.

A neutralization reaction is a chemical reaction in which an acid and a base combine quantitatively to generate a salt and water as products. A neutralization reaction involves the formation of water by the interaction of H+ ions and OH- ions.

To meet the rule of conservation of matter, which stipulates that matter cannot be generated or destroyed in a closed system, chemical equations must be balanced. A chemical equation’s balance is governed by the rule of conservation of mass. Water is formed when positive hydrogen ions from HCl and negative hydroxide ions from NaOH mix.

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A semi-permeable paper barrier called filter paper is positioned perpendicular to an air or liquid flow. It is employed to separate tiny solid particles from gases or liquids.

Paper and cellulose filters are made from cellulose fibers and are intended for general filtration. That particle retention level might be as low as 2.5 m. This kind of membrane filter must be folded in order to be used in simple gravity filtering using a plastique or glass filtration funnel.

For critical gravimetric analysis, this grade serves as a global benchmark. Of all the Whatman cellulose filter papers, it is renowned for having the best particle retention.

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