In a titration of 12.5 ML of 0.20m NaOH is used to neutralize 10.0 ML of HCL. Calculate the acid concentration

Answer:

B) They are made up of particles that travel in a curved path when in motion.

Explanation:

We know that gas, being a state of matter, is made up of particles. John Dalton's solid-sphere model was proven to be incorrect by Ernest Rutherford's gold foil experiment.

These particles do NOT always move very slowly. There are multiple different factors that affect the speed of the particles such as temperature or concentration.

Answer:

boring it

Explanation:

because boring is life style

The molarity of the potassium hydroxide required to neutralize 60.0 mL of 0.0100 M H3PO4 is 0.02M.

The molarity of a solution can be calculated using the following formula:

CaVa = CbVb

Where;

60 × 0.0100 = 30 × Cb

0.6 = 30Cb

Cb = 0.6/30

Cb = 0.02M

Therefore, molarity of the potassium hydroxide required to neutralize 60.0 mL of 0.0100 M H3PO4 is 0.02M.

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Answer:

We convert two lone pairs of electrons from each oxygen atom to a covalent bond, as seen in the SiO2 Lewis dot structure. As a result, the valence shells of both silicon and oxygen have eight electrons.

The scientist must be studying the Helium quarks.

Charged particles, such protons or electrons, are propelled at high speeds that are very close to the speed of light by an accelerator. Then, they are smashed either onto a target or onto other particles moving the other way. 

Quarks and electrons are the two categories of fundamental particles that make up an atom.

An atom's nucleus is surrounded by an area of electrons. The electrical charge of every electron is negative one.

Protons and neutrons, which together make up an atom's nucleus, are made of quarks. Three quarks are found in each proton and neutron.

A fast-moving point of energy is a quark. Quarks come in a variety of types. Up quarks and down quarks are the two types of quarks that make up protons and neutrons.

The most basic and elementary component of matter is the quark. It is clear that the scientist is examining the quarks inside the proton when high energy particles are bombarded in the helium nucleus to analyze the particles inside. Two up quarks and one down quark are found in a proton.

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The chemical formula of aluminum chloride is AlCl₃ and the  chemical formula of aluminum oxide is Al₂O₃.

The chemical formula of aluminum chloride is written as;

Al³⁺  + Cl⁻   → AlCl₃

The chemical formula of aluminum oxide is written as;

Al³⁺  + O²⁻   → Al₂O₃

Thus, the chemical formula of aluminum chloride is AlCl₃ and the  chemical formula of aluminum oxide is Al₂O₃.

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Answer:

gg mate

Explanation:

Answer:

which question is it for

Answer:

2Mg+O=2MgO

Explanation:

32gram of reacting

How does the temperature change?

The temperature rise brought on by the interaction of magnesium with hydrochloric acid led Noor and hanif to wonder.

Determining the rate of temperature:

In order to gauge the temperature, Noor and hanif each added 10 cm of hydrochloric acid to a test tube. The same pieces of magnesium ribbon were then inserted. The temperature was again measured when the reaction ended.

The rate of temperature rise during a reaction. Heat energy is released when metals react with acids or water. A metal reacts exothermically with either water or acid.

Acid and metal reactions:

The test tube heated up when you added magnesium to dilute hydrochloric acid. Magnesium and hydrochloric acid interaction in an exothermic process.

magnesium + hydrochloric acid → magnesium chloride + hydrogen

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The selectivity filter of an ion channel prevent the passage of ions that are smaller or bigger through forming the most constricted part of the conduction pathway.

This is referred to a particle which is charged such as being positive, negative etc.

The selectivity filter being part of the constricted parts will ensure that the appropriate ions are bonded and moved into the cell.

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Based on the mole ratio of the reaction:

The mole ratio of the reaction is given by the equation of reaction as follows:

[tex]2\:Al(NO_{3})_{3} + 3\:Na_{2}CO_{3} \rightarrow Al_{2}(CO_{3})_{3} + 3\:NaNO_{3}[/tex]

The mole ratio of the products and reactants are used to determine the amount of product

Moles of aluminum nitrate reacting = 141/1000 * 1.2 M = 0.1692 moles

Moles of sodium carbonate reacting = 85/1000 * 0.27 = 0.02295 moles

Based on the mole ratio, sodium carbonate is the limiting reactant.

Moles of aluminum carbonate produced = 0.02295 * 1/3 = 0.00765 moles

Moles of sodium nitrate produced = 0.02295 * 3/3 = 0.02295 moles.

Therefore, the moles of the products aluminum carbonate  and sodium nitrate produced is determined from the mole ratio of the reaction.

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Rather than being oxidized for energy, sugars are connected by glycosidic linkages to make a capsule. This is catabolism process.

It is a type of linkage in which covalent bond that joins a carbohydrate molecules to another group is called glycosidic bond or glycosidic linkage.

Example: Hemiacetal and hemiketal.

Catabolism is the part of metabolic process which uses energy to break down into smaller units.

Thus from the above conclusion we can say that Rather than being oxidized for energy, sugars are connected by glycosidic linkages to make a capsule. This is catabolism process.

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Answer:

9.9363 x 10^23  atoms

Explanation:

1.65   x   Avagadro's Number

1.65 * 6.022 x 10^23 =

The reactant in this reaction is 2-fluoro-5-propyl - heptane while the product is  2-hydroxy-5-propyl - heptane.

We define a substitution reaction as one in which a given moiety is replaced by another. This is an example of a substitution reaction.

The name of the reactant in this reaction is 2-fluoro-5-propyl - heptane while the product is  2-hydroxy-5-propyl - heptane.

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The half-life of the reaction is 101.9 min

When a reaction's pace and reactant concentration are inversely correlated, the process is known as a first-order reaction. To put it another way, the reaction rate doubles when the concentration does. One or two reactants can be present in a first-order reaction, as in the case of the decomposition process.

The amount of time it takes for the initial concentration of the reactant(s) to decrease by half is known as the half-life of a chemical reaction (abbreviated as "t1/2").

a→b

25% reacted means 75% remains

t=42 min

Rate constant

k=(2.303/t)(log a/a-x)

k=(2.303/42)(log 100/100-25 )

k=(0.054) (log 100/75)

k=(0.054)(0.1249)

k=0.0068 per min

half life

t1/2=(0.693/k)

     =(0.693/0.0068)

     =101.9 min

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Amount of heat released:

Heat is released when 25.0 gm of liquid copper at its freezing point of 1,085°C changes to solid is -5125 J

Given:

Mass of liquid copper, m= 25 gm

Latent heat of fusion of copper, L = 205.0 J/g

The amount of heat needed to change one gram of a substance from solid to liquid is known as the latent heat of fusion.

However, in this instance, it is necessary to determine the quantity of heat emitted when liquid copper solidifies.

So, L = -205.0 J/g

Calculation:

We may use the unitary approach to calculate the heat released when 25.0 grams of liquid copper solidify at 1,085°C, which is its freezing point.

So,

Q = L x m

Q = -205 J/g x 25 g

Q = -5125 J

So, the correct answer is b) -5,130 J, which is much nearest to -5125 J as we have calculated above.

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Answer:

-5,130 J

Explanation:

I got 100% on the quiz edge 2022

Answer:

Explanation:

Sounds like oxygen acts as a 'catalyst'

Answer:

This is because the ionic forces in those molecules are very high, which creates high lattice energy

Explanation:

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The substance used for decolorization of undesirable color in a crystalline substance is powdered animal charcoal

Decolorization is the process of eliminating organic contaminants with vivid colors from the sample mixture.

Unwanted colors are removed by boiling the item with a suitable amount of powdered animal charcoal in a hot solution that has been filtered so that the charcoal may absorb the colors. The charcoal is a finely divided carbon.

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As the effective nuclear charge increases, electron affinity generally increases.

Electron affinity increases to the right, while EI increases to the right and upwards. Thus, the general trend of electronegativity is to grow to the right and upwards. The further to the right, the greater the effective nuclear charge and the greater the atom's ability to pull electrons toward it.

In this case, we can say that as the effective nuclear charge increases, electron affinity generally increases.

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H2O is boiled with heat. Element which form a tea compound are pour in a cup and and the heated H2O is poured in the cup. Osmosis Occurs. Temperature and Stirring makes Osmosis Faster.

The warm water is poured into the cup together with the ingredients that make up the tea compound. Osmosis happens. Osmosis occurs more quickly with temperature and stirring.

Osmosis is the process by which water molecules pass across a cell's partly permeable membrane from a solution with a high concentration of water molecules to one with a lower concentration.

Through the process of osmosis, water is transferred from a location of high water concentration to a region of low water concentration. A semipermeable membrane is a surface that permits the passage of the chosen substances (in this case, water).

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The  temperature of the water will reduce by 2.4 °C from 24.9 °C 22.5 °C.

The temperature change when 3.21 g of NH₄NO₃ is dissolved in 100 g of water under the same conditions is determined using the formula:

In example 5.6, when 3.21 g of NH₄NO₃ is dissolved in 50 g of water at 24.9°C in a calorimeter, the temperature decreases to 20.3°C.

The quantity of heat absorbed, q = -mcΔT

m = 50 + 3.21 = 53.21g

Assuming the specific heat of the solution is the same as that of water;

c = 4.18 J/g/K

ΔT = 20.3 - 24.9 = -4.6 K

q = -(53.21 * 4.18 * -4.6)

q = 1023.12 J

Since, the same mass of NH₄NO₃ is dissolved, the quantity of heat absorbed is the same.

ΔT = - q/mc

m = 100 + 3.21 = 103.21 g

ΔT = - 1023.12 J/103.21 * 4.18

ΔT = -2.4 °C

Therefore, the temperature of the water will reduce by 2.4 °C.

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Answer:

A solution of NaOH has concentration 1.2M. Calculate the mass of NaOH in g/dm3 in this solution. = 1.2x 40x 1 = 48 g 3.

The mass of NaOH in the solution having concentration of 1.2 M is 48.00 grams per decimeter cubed (g/dm³).

Concentration refers to the amount of a solute dissolved in a given amount of solvent or solution. It is a measure of how much solute is present in a specific volume or mass of the solution.

Concentration can be expressed in various units, such as molarity (moles of solute per liter of solution), mass percent (mass of solute per 100 grams of solution), parts per million (ppm), and others.

Given:

Concentration of NaOH solution = 1.2 M

The molar mass of NaOH (sodium hydroxide) is:

Na: 22.99 g/mol

O: 16.00 g/mol

H: 1.01 g/mol

Total molar mass of NaOH = 22.99 + 16.00 + 1.01

= 40.00 g/mol

1 mole of NaOH = 40.00 g

1.2 moles of NaOH = 1.2 moles × 40.00 g/mole

= 48.00 g/L

1 L = 1 dm³

So, 48.00 g/L = 48.00 g/dm³

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Answer:

Photosynthesis occurs in two stages. During the first stage, the energy from sunlight is absorbed by the chloroplast. Water is used, and oxygen is produced during this part of the process.

Explanation:

Answer:

Chloroplast absorbs the energy emitted by the Sun.

_____________________________________________________

Context:

Photosynthesis:

The complex process by which carbon dioxide, water, and certain inorganic salts are converted into carbohydrates by green plants, algae, and certain bacteria, using energy from the sun and chlorophyll.

Chloroplast:

A plastid containing chlorophyll.

Chlorophyll:

The green coloring matter of leaves and plants, essentially to the production of carbohydrates by photosynthesis, and occurring in a blush-black form, C55J72MgN4O5 (chlorophyll a), and a dark-green form, C55H70MgtN4O6 (chlorophyll b).

Sun:

The star that is the central body of the solar system, around which the planets revolve and from which they receive light and heat: its mean distance form earth is about 93 million miles (150 million km), its diameter about 864,000 miles (1.4 million km), and it's mass about 330,000 times that of earth; its period of surface rotation is about 26 days at its equator but longer at higher latitudes.

Explanation:

There are two main phases in photosynthesis:

depending on light stage

Clause Cycle (AKA the dark stage or the light-independent stage)

In the light-dependent stage, ATP and NADPH are produced using photons, or light energy. Oxygen molecules start to form during this stage as a byproduct.

Utilizing the materials produced during the light-dependent stage, the Calvin cycle fixes CO2 molecules to produce carbohydrates (sugars). This stage can repeat itself indefinitely since RuBP, the initial chemical required for the stage to go further, also serves as its byproduct.

Answer:

0.3011 X10²³

Explanation:

hope this helps u

Answer:

0.5 mol/dm3

Explanation:

e.g. g/dm3, g/cm3 and mol/dm3

= g dm-3, g cm-3 and mol dm-3

The lysis reaction with the formation of two different gases, and the synthesis reaction with the reaction of hydrogen and oxygen support that water is a compound and not an element.

The electrolysis is the analytical process for the separation or the deposition of the element in the presence of the electric field.

The passing of electric current through water results in the release of two types of gases. Thus, it can be said that water lysis or breakdown forms the release of two elements hydrogen and oxygen supporting the fact that water is a compound and not an element.

The production of water is found to be formed with the reaction of hydrogen with oxygen. Thus it supports that water is a compound and, not an element.

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Answer:

The asnwer to your question is A. tetrahedral compound

Explanation:

A tetrahedral is an object that has a central atom surrounded by four other atoms.

Linear chain compounds are materials composed of one-dimensional arrays of metal-metal bonded molecules or ions.

A trigonal bipyramid formation is a molecular geometry with one atom at the center and 5 more atoms at the corners of a triangular bipyramid.

An octahedron is a polyhedron with eight faces. The term is most commonly used to refer to the regular octahedron, a Platonic solid composed of eight equilateral triangles, four of which meet at each vertex.

I hope this helps and have a good day!

The number of moles of H₂ that must be generated to fill it is 0.41 mole.

Apply ideal gas law;

PV = nRT

n = PV/RT

where;

n = (10 x 100)/(8.314 x 293)

n = 0.41 mole

Thus, the number of moles of H₂ that must be generated to fill it is 0.41 mole.

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The final volume of the gas is  73.359 mL

Given :

A sample gas has an initial volume of 72.0 mL

The work done = 141.2 J

Pressure = 783 torr

The objective is to determine the final volume of the gas.

Since, the process does 141.2 J of work on its surroundings at a constant pressure of 783 Torr. Then, the pressure is external.

Converting the external pressure to atm; we have

External Pressure P[tex]ext[/tex]:

[tex]P ext[/tex] = 783 torr × [tex]\frac{1 atm}{760 torr}[/tex]

[tex]Pext[/tex] = 1.03 atm

The work done W =  [tex]Pext V[/tex]

The change in volume ΔV= [tex]\frac{W}{Pext}[/tex]

ΔV = [tex]\frac{141.2 J \frac{1 L atm}{101.325 J} }{1.03 atm}[/tex]

ΔV = [tex]\frac{0.0014}{1.03}[/tex]

ΔV = 0.001359 L

ΔV = 1.359 mL

The initial  volume = 72.0 mL

The change in volume V is ΔV = V₂ - V₁

-  V₂ = - ΔV - V₁

multiply both sides by (-), we have:

V₂ = ΔV + V₁

     =  1.359 mL + 72.0 mL

     = 73.359 mL

Therefore, the final volume of the gas is  73.359 mL .

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