A 3. 245g sample of titanium chloride was reacted with sodium metal, producing sodium chloride and metallic titianium. After the sodium chloride was washed out, the remaining titanium metal weighed 0. 819g. What is the empirical formula of the titanium chloride

Answer:

can't see many lines in spectrum

Generally, we have five types of spectral lines namely - Lyman, Balmer, Paschen, Brackett, and Pfund.

The idea of the Spectrum is utilised to map and categorise the physical electromagnetic wave phenomena. The electromagnetic spectrum refers to the entire range of radio frequencies that these waves can travel through space at.

A spectral line is a dark or bright line in a spectrum that is otherwise uniform and continuous and is caused by the emission or absorption of light at a specific limited frequency range as opposed to frequencies close by. To identify atoms and molecules, spectral lines are frequently utilised.

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Answer:

The answer is " salt".

Explanation:

Hey there!

When any acids and base react with eachother, they forms water and respective salts.

For example:

HCl + NAOH = NACl + H2O.

Hope it helps!

1) Vapor pressure. Water exerts vapor pressure. This pressure is produced by the water molecules that change their state from liquid to gas.

2) Setting a similar system and watching what happens.

If we set a system similar to that shown in the image (place the cup of water in the jar and then close the jar), we will see the following

1) The big jar has no molecules of water gas since we just closed it.

2) Some water molecules change from liquid to gas and start filling the big jar.

3) The big jar will have a certain amount of vapor water.

4) The big jar has so much water that it starts condensing on the walls of the big jar.

5) After enough water is condensed on the walls, it runs down the walls and precipitates.

3) The order observed.

1) Water evaporated from the cup

2) water condensed on the walls of the jar.

3) Water precipitated, or ran down the walls of the jar.

3.6 ×10²⁴ atoms fluorine are in 410 g of UF\(_6\). Fluorine is an atomic number 9 chemical element with both the symbol F.

Fluorine is an atomic number 9 chemical element with both the symbol F. This is the smallest halogen as well as occurs as a very poisonous, pale yellow diatomic vapor under normal circumstances.

It is exceptionally reactive being the most electronegative active catalyst, reacting with all other elements save the light inert.

mole =  410 / 352.02 =1.16mole

number of atom= 1.16× 6.022×10²³=6.98×10²³

number of atom of fluorine =6× 6.98×10²³= 3.6   ×10²⁴ atoms

Therefore, 3.6 ×10²⁴ atoms fluorine are in 410 g of UF\(_6\).

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Answer:

Explanation:

b

The molar solubility of CaF₂ should be 6.4 × 10⁻¹⁰ M in order to dissolve in 3 litres of 0.150 M NaF solution.

Calculation of the molar solubility:

Here

CaF2 will dissociate should be

CaF2 ⇌Ca²⁺+ 2F⁻

where,

1 mole of Calcium ion (x)

2 moles of fluorine ion (2x)

Now

NaF will also dissociate like

NaF ⇌ Na⁺ + F⁻

Here

Na⁺ = 0.25M

F⁻ = 0.25M

Now

Ksp = {Ca²⁺}{F⁻}²

Ksp = {x}{0.25}²

4.0 × 10⁻¹¹= 0.25⁻²× x

4.0 × 10⁻¹¹ = 0.0625x

x = 4.0 ×  10⁻¹¹ ÷ 6.25 × 10⁻²

x = 4/6.25 × 10⁻⁹

x = 0.64 × 10⁻⁹

x = 6.4 × 10⁻¹⁰

Therefore, the molar solubility of CaF₂ in NaF solution is 6.4 × 10⁻¹⁰M

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Answer:

The middle Hydrogen atom is bonded to two instead of one atom

Oxygen is bonded to one instead of two atoms

Oxygen has three instead of two lone pairs of electron.

Explanation:

If we look at the structure, we will notice that it does not satisfy the basic principles of valency.

Hydrogen has a valency of 1. However, the middle hydrogen atom is bonded to two atoms instead of only one atom - the other atom of hydrogen and an atom of oxygen.

Secondly, oxygen has three lone pairs instead of two lone pairs, hence it is bonded to only one instead of two atoms. This does not correspond to the known valency of oxygen.

The structure does not obey the valence rule. From the structure, it is impossible for the hydrogen atom to bond to more than one atom.

The valence rule posits that an atomic element has the ability to gain or lose the maximum number of electrons in its outermost shell.

From the information, the hydrogen is bonded to a hydrogen atom and singly bonded to another oxygen atom.

This does not conform to the rule of valence electrons and therefore affects the stability of the hydrogen atom because the hydrogen has the ability to bond to only one atom and not two different atoms.

Therefore, we can conclude that the structure does not obey the valence rule and hydrogen can only bond to one atom at a time.

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γ-ray photons with a wavelength of 2.45x10⁻⁵ nm the energy numerically in kilojoules per mole is 8.118 kJ

Photon is the tiny particles and bundles of electromagnetic radiation

Here given data is

y-ray wavelength = 2.45x10⁻⁵ nm

We have to calculate energy = ?

E = hf

E= Energy of the photon

h= Plank's constant = 6.63×10⁻³⁴

f= frequency of the radiation

But f = c/λ

c= speed of light

λ= wavelength

Hence

E = hc/λ

E = 6.63×10⁻³⁴×3×10⁸/2.45x10⁻⁵

E = 8.118 kJ

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Answer:

primary source: documents the result of original researche.

: is written by those who have conducted researche.

: includes firsthand information about their methodologies, data, results or conclusions.

Secondary source: summarizes, compares, critiques or interprets the primary source.

Explanation:

Primary source is the research articles published in scholarly, peer reviewed journal.

Secondary source is the summarises, critiques or interpretations of primary source.

The mass of the 25,000 molecules of Nitrogen gas is found to be 0.0000017 g (1.7 x 10⁻⁶ g).

We must use the molar mass of nitrogen and the Avogadro's number to get the mass of 25,000 molecules of nitrogen gas.

Nitrogen (N₂) has a molar mass of 28 g/mol.

The number of particles in one mole of any substance determined by Avogadro is 6.02 x 10²³.

One nitrogen gas molecule's mass can be determined as follows:

Nitrogen's (N₂) molecular weight is 28 g/mol.

Nitrogen gas molecules total 25,000.

Nitrogen gas moles equal (25,000 molecules) / (6.02 x 10²³ molecules/mol)

(Num. of moles) x = mass of nitrogen gas (molar mass)

[(25,000 molecules) / (6.02 x 10²³ molecules/mol)] is a formula for the mass of nitrogen gas. x (28 g/mol)

Nitrogen gas mass = 0.00000117 g

Therefore, 25,000 nitrogen gas molecules have a mass of about 0.00000117 g.

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Answer:

4 parts of acid

Explanation:

The label on a bag of potato chips indicates that one serving contains 200 calories, with16 grams of fat. 60 percentage of calories comes from fat.

A healthy body requires a balance of six nutrients, including fat. The remaining five nutrients include:

Carbohydrates (found in fruits, vegetables, pasta, rice, grains, peas, beans, and other legumes) (found in fruits, vegetables, pasta, rice, grains, peas, beans, and other legumes)

Proteins (found in meat, poultry, dairy products, eggs, and beans) (found in meat, poultry, dairy products, eggs, and beans)

Minerals (such as potassium, calcium, and iron) (such as potassium, calcium, and iron)

Vitamins (such as vitamins A, D, E, and K) (such as vitamins A, D, E, and K)

Water

Carbohydrates, protein, and lipids are the only three of these six components that provide calories. There are 4 calories per gramme of protein and carbs. Has 9 calories per gramme of fat.

Like a teaspoon or an inch, a calorie is a measurement. When your body digests and absorbs food, calories are the amount of energy that is released. Foods that have more calories might give your body extra energy. The additional calories you consume are turned into body fat by your body when you consume more than you require. Foods might contain a lot of calories even if they are fat-free. Body fat can be stored when there are too many calories in any form.

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Sun is the centre of the solar system containing 8 planets. Some planets have moons revolving around them. The planet from the sun which a moon is Earth.

Planets are spatial objects formed by gases, soil, and dust and are having a gravitational force. The only living planet is earth. The moon of earth is itself called moon which is revolving around the earth.

In solar system the nearest planet to sun is mercury which have no moons. Next is venus also having no moons. The next planet in the series is earth having one moon.

After earth, mars is closest to sun which have two moons namely Deimos and Phobos. After mars,Jupiter having the highest number of moons and then saturn.

Therefore, the first planet from sun having at least one moon is earth.

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Answer:

Explanation:

Answer:,,,,,

The number of moles of KCIO3 that have decomposed will be equal to: Moles of KCIO3 = 2.50 mol O2/3 mol O2/1 mol KCIO3 = 0.83 mol KCIO3. The mass of KCIO3 is 169.09 g

Stoichiometry is the branch of chemistry that studies the quantitative relationships between reactants and products in a chemical reaction. To solve stoichiometry problems, one must be familiar with the stoichiometric coefficients of the reactants and products in the balanced chemical equation. KCIO3 → 2KCI + 3O2If 1.50 moles of KCIO3 decomposes, the mass of O2 produced will be equal to the coefficient of O2 multiplied by the number of moles of KCIO3 that have decomposed.

This can be calculated as follows: 3 mol O2/1 mol KCIO3 x 1.50 mol KCIO3 = 4.50 mol O2

Mass of O2 = 4.50 mol O2 x 32.00 g/mol

= 144.00 g O2 If 80.0 g of O2 was produced, we can calculate the number of moles of O2 produced using the molar mass of O2: Moles of O2 = 80.0 g O2/32.00 g/mol

= 2.50 mol O2 Since the coefficient of O2 in the balanced chemical equation is 3, the number of moles of KCIO3 that have decomposed will be equal to: Moles of KCIO3 = 2.50 mol O2/3 mol O2/1 mol

KCIO3 = 0.83 mol KCIO3 To find the mass of KCIO3 needed to produce 2.75 moles of KCI, we need to use the stoichiometric coefficients of KCIO3 and KCI in the balanced chemical equation: 1 mol KCIO3 → 2 mol KCI2.75 mol KCI/2 mol KCI/1 mol KCIO3 = 1.38 mol KCIO3

Mass of KCIO3 = 1.38 mol KCIO3 x 122.55 g/mol

= 169.09 g KCIO3.

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Answer: Yes.

Explanation:

the number of protons in the nucleus determines an element's identity. Chemical changes do not affect the nucleus, so chemical changes cannot change one type of atom into another. The number of protons in a nucleus does change sometimes, however. The identity of the atom, therefore, changes.

Atoms that are unable to pass one another become free to migrate during state shifts such as sublimation and melting. While atoms also have a tendency to clash when a solid material melts.

This allows them to slip past one another. As a result, we may say that as an object melts or sublimation, its state changes, allowing atoms that can't travel past one another to do so. A substance can transfer directly from the solid to the gas state through sublimation, bypassing the liquid step. A substance can change its phase from a solid to a liquid by the physical process of melting or fusion. When the solid's internal energy increases, usually as a result of the application of heat causes melting.

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Waves are disturbance that transfer energy through matter or space.

A wave can be described as a disturbance that travels through a medium, transporting energy from one location to another location without transporting matter.

The particles involved in waves move back and forth perpendicularly to the way the wave is going, but don’t move significantly in the direction of the wave. The particles ‘take part’ in the wave by bumping into one another and transferring energy. This is why energy can be transferred, even though the average position of the particles doesn’t change.

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The new volume of the balloon will be determined by the Ideal Gas Law.

The Ideal Gas Law is a mathematical equation used to describe the behavior of an ideal gas under a given set of conditions. It states that, at a constant temperature and pressure, the pressure, volume and amount of gas present are all directly proportional.

This law states that the product of the pressure, volume, and temperature of a gas is a constant.
Since the pressure of the balloon remains constant, the new volume is inversely proportional to the temperature.
Therefore, the new volume can be calculated by dividing the original volume (13.5 liters) by the ratio of the original temperature (248 K) to the new temperature (324 K),
which is 248/324 = 0.76.
The new volume of the balloon is then 13.5 liters / 0.76 = 17.76 liters.

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Answer:

When too much carbon monoxide is in the air, your body replaces the oxygen in your red blood cells with carbon monoxide.

Explanation:

This can lead to serious tissue damage or even death. As you mentioned.

250 grams of Mix A (MxA) should be used to obtain the right diet for one animal.

To determine the number of grams of Mix A (MxA) needed to obtain the right diet for one animal, let's assume that x represents the number of grams of MxA used.

The protein content in MxA is 10%, which means 0.10x grams of protein will be obtained from MxA.

The fat content in MxA is 6%, which means 0.06x grams of fat will be obtained from MxA.

Since the desired diet for one animal should consist of 25 grams of protein and 5 grams of fat, we can set up the following equation based on the protein content:

0.10x = 25

Solving for x:

x = 25 / 0.10

x = 250 grams.

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Based on the description of the graph, the law that is based on it is A. Boyle's law.

Boyle's law states that, at a constant temperature, the pressure and volume of a gas are inversely proportional to each other. In other words, as the volume of a gas decreases, the pressure increases, and vice versa, when the temperature remains constant.

The graph described shows a curve that starts high on the horizontal axis (indicating a large volume) and curves toward the origin, indicating a decrease in volume. As the volume decreases, according to Boyle's law, the pressure of the gas would increase. The leveling out of the curve as it approaches the horizontal axis suggests that there is an equilibrium point where the pressure and volume have stabilized.

Therefore, the graph aligns with the behavior predicted by Boyle's law, which establishes the inverse relationship between pressure and volume for a given amount of gas at a constant temperature. Therefore, Option A is correct.

The question was incomplete. find the full content below:

Which law is based on the graph that is shown below?

A graph is shown with pressure on the horizontal axis and volume on the vertical axis. A curve starts high on the horizontal axis, curves toward the origin, and then starts to level out as it approaches the horizontal axis.

A. Boyle’s law

B. Charles’s law

C. Dalton’s law

D. Gay-Lussac’s law

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Answer:

\({ \rm{2H {}^{ + } _{(aq)} + CO {}^{2 - } _{3(aq)} \: \: \: {}^{ { \huge{\dashrightarrow} }} _{ \huge{ \dashleftarrow}} }} \: \: { \rm{H _{2} CO _{3(aq)} }}\)

Answer:

The salt bridge (or porous disk) connects the two half cells together. As electrons flow from one cell to another, ions flow through the salt bridge to maintain a charge equilibrium. Had there not been a salt bridge, the reduction and oxidation reactions would eventually stop due to the difference in charge.

What would happen if no salt bridge were used in an electrochemical?

If no salt bridge were present, the solution in one-half cell would accumulate a negative charge and the solution in the other half cell would accumulate a positive charge as the reaction proceeded, quickly preventing further reaction, and hence the production of electricity.

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Pls brainliest...

The Correct representation of arrows are Arrow A :  74.6 kJ, Arrow B : Exothermic, Arrow C :  has a magnitude that is less than that of B, Arrow D : represents the overall enthalpy of reaction

Those reactions which releases energy are called as exothermic reactions.

Correct representations of arrows based on the diagram ;

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Answer:

The above answers are correct! If you want it a little more simply tho:

Arrow A: Option A

Arrow B: Option B

Arrow C: Option B

Arrow D: Option C

Explanation:

Hope this gave a little more clarification!

Have a great day :)

Brainliest would be great :D

You can determine the R/S configuration of a chiral center in a Fischer projection when the lowest priority group is not initially on a vertical line.

To determine the R/S configuration of a chiral center in a Fischer projection when the lowest priority group is not on a vertical line, you can follow these steps:

1. Identify the chiral center and assign priority to the four groups attached to it based on the Cahn-Ingold-Prelog rules (the higher the atomic number, the higher the priority).

2. Rotate the Fischer projection in such a way that the lowest priority group (group 4) is placed on a vertical line. You can achieve this by mentally exchanging two groups at a time until the desired orientation is obtained. Remember, every exchange reverses the configuration (from R to S or vice versa).

3. Once the lowest priority group is on a vertical line, determine the R/S configuration by observing the clockwise or counterclockwise direction of the priority order (1-2-3). If the order is clockwise, it is R; if counterclockwise, it is S.

4. If you made an odd number of exchanges in step 2, the configuration remains the same. If you made an even number of exchanges, the configuration is reversed (R to S or vice versa).

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