In the illustration, which solute will dissolve first?
00.0
00.0
tanka
tank
Solute in Tanks A and B will dissolve at equal rates.
Solute in Tonk Awill dissolve first
Soluten Tork B wil dissolves

Answer:

the correct anwser is 1893.65 grams

Explanation:

hope this helps

1893.65 grams is the mass in gram of 1.565 L of salt water with a density of 1.210 g/ cm³.

A body's mass is an inherent quality. Before the development of the atom as well as particle physics, it was widely considered to be tied to the amount of matter inside a physical body. It was discovered that, despite having the very same amount of material in theory, different atoms and elementary particles have varied masses.

There are various conceptions of mass in contemporary physics that are theoretically different but physically equivalent. As a measurement of the body's momentum, or the opposition to acceleration whenever a negative force is applied, mass can be conceptualized empirically.

density = mass/ volume

1.210    = mass/ 1.565

mass = 1893.65 grams

Therefore, 1893.65 grams is the mass in gram.

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The guideline that is recommended for a nurse who is collecting a stool specimen of a client suspected of having clostridium difficile includes the following procedures:

1. Use a new pair of gloves for each step in the process of specimen collection, removing the old gloves each time.

2. A bedpan is provided by the nurse for the client to have a bowel movement.

3. The bedpan is then thoroughly washed, disinfected, and dried.

4. The client's buttocks are washed with warm, soapy water and dried with a clean towel.

5. The nurse wears gloves to remove the stool specimen from the bedpan.

6. The specimen is placed in a sterile container and taken to the laboratory as soon as possible.

7. The nurse takes care to avoid touching any part of the specimen container that will come in contact with the laboratory personnel.

The nurse should adhere to standard infection control procedures to protect both the nurse and the client from potential infection. The nurse should make certain to wash their hands before and after the procedure. A stool sample is usually the best way to confirm the diagnosis of Clostridium difficile infection. It can be challenging to diagnose C. difficile infection in the early stages.

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Never use a spatula to empty a bottle with solid chemicals. You will contaminate the chemical if you do this. Pour solid into your straight in place of it.

If this solid substance or a liquid containing it comes in touch with your skin, immediately wash it with soap and water to remove any contamination. After cleaning, seek medical assistance if the irritation continues.

The area should be immediately thoroughly flushed with water for at least 15 minutes. Try to prevent cross-contamination if flushing your eyes is not necessary.

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Answer:They are less dense near the top of the atmosphere.

Explanation:

It requires more energy to vaporize water at the boiling point than to melt water at the boiling point. This is because vaporization involves the transformation of liquid water into a gas, which requires the breaking of intermolecular bonds and the overcoming of strong attractive forces

It requires more energy to vaporize water at the boiling point than to melt water at the boiling point. This is because vaporization involves the transformation of liquid water into a gas, which requires the breaking of intermolecular bonds and the overcoming of strong attractive forces between water molecules. On the other hand, melting only involves the breaking of the weaker hydrogen bonds between water molecules to transform solid water (ice) into liquid water.
To answer your question, it requires more energy to vaporize water at the boiling point than to melt water at the boiling point.

Vaporization involves converting water from a liquid state to a gaseous state, while melting involves converting water from a solid state (ice) to a liquid state. At the boiling point, water is already in a liquid state, so melting would not be relevant in this context.

However, if we compare the energy required for vaporization and melting in general, vaporization requires more energy. This is because the energy needed to overcome the intermolecular forces in vaporization is greater than the energy needed to overcome the forces in melting. In other words, more energy is needed to break the bonds between water molecules when changing from liquid to gas than when changing from solid to liquid.

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Answer A:

The organism which provides energy directly and/or indirectly to all of the other organisms is the garden plants.

Explanation:

Plants are generally found at the lowest part of the pyramid/food chain. They are also called Autorotrophs because they are the primary producers of energy from which the entire pyramid feeds off.

The other animals/organisms on the pyramid are called Heterotrophs because they depend directly or indirectly on the primary energy producers.

Answer B:

The Slug and the Aphid feed are herbivorous. So they are in competition for the garden plants. If one of them, for some reason, decreased in population, the other will have more food to eat.

Cheers

The type of intermolecular force relates to the big difference in the electronegativities and is known as hydrogen bonding.

Intermolecular forces may be defined as the mechanism that mediates the interaction between the atoms of the molecules. It significantly includes the electromagnetic forces of attraction and repulsion between the atoms.

Some examples of intermolecular forces include London-dispersion force, dipole-dipole interaction, van der Waals interaction, hydrogen bonds, etc. Each one of them possesses a different set of characteristic properties distinctly. Some types of forces are also present in the body of living organisms.

Hydrogen bonding is a characteristic kind of interaction that remarkably includes dipole-dipole attraction between the most electronegative elements like Nitrogen, Oxygen, fluorine, etc., and the hydrogen atom.

Therefore, hydrogen bonding is a type of intermolecular force relates to the big difference in the electronegativities.

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Answer:

A= Coconut oil, B= Water, C= Sea water

Explanation:

oil is dense, water will allow things to float, but not as well as sea water

Answer:

Explanation:

Mechanical energy = Kinetic energy + Potential energy

We shall calculate mechanical energy at different points of time .

Time        Kinetic energy         Potential energy      mechanical energy

   0                     0                                 4                                  4

    2                     2                                  2                                 4

     4                    4                                  0                                  4

      6                   2                                  2                                  4

     8                    0                                   4                                  4

     10                    2                                   2                                 4

and so on ........

Hence we see that total mechanical energy is constant at the value of 4

at all time .

Approximately 12.45 grams of solid silver chromate will precipitate when 150 mL of 0.500 M silver nitrate solution is added to excess potassium chromate.

To determine the number of moles of AgNO3 present in 150 mL of a 0.500 M AgNO3 solution, we can use the formula:

moles = concentration × volume

Given:

Concentration of AgNO3 solution = 0.500 M

Volume of AgNO3 solution = 150 mL

First, we need to convert the volume from milliliters (mL) to liters (L) since the concentration is given in moles per liter (M).

1 L = 1000 mL

Therefore, the volume of the AgNO3 solution in liters is:

150 mL × (1 L / 1000 mL) = 0.150 L

Now we can calculate the moles of AgNO3 using the formula:

moles = concentration × volume

moles = 0.500 M × 0.150 L

moles = 0.075 mol

So, there are 0.075 moles of AgNO3 present in 150 mL of the 0.500 M AgNO3 solution.

Now, let's proceed to determine how many grams of solid silver chromate (Ag2CrO4) will precipitate when the AgNO3 solution reacts with excess potassium chromate (K2CrO4).

From the balanced chemical equation:

2AgNO3(aq) + K2CrO4(aq) → Ag2CrO4(s) + 2KNO3(aq)

We can see that the molar ratio between AgNO3 and Ag2CrO4 is 2:1. Therefore, for every 2 moles of AgNO3, we will form 1 mole of Ag2CrO4.

Since we have 0.075 moles of AgNO3, we can calculate the moles of Ag2CrO4 formed:

moles of Ag2CrO4 = 0.075 mol / 2 = 0.0375 mol

To determine the mass of Ag2CrO4, we need to multiply the moles by its molar mass. The molar mass of Ag2CrO4 is calculated by summing the atomic masses of each element in the compound:

Ag2CrO4 = 2(Ag) + 1(Cr) + 4(O) = 2(107.87 g/mol) + 1(52.00 g/mol) + 4(16.00 g/mol) = 331.87 g/mol

mass of Ag2CrO4 = moles of Ag2CrO4 × molar mass of Ag2CrO4

mass of Ag2CrO4 = 0.0375 mol × 331.87 g/mol = 12.45 g

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The given statement "An analysis of past seasonal fluctuations can be helpful in planning production for items such as toys, dolls, Easter eggs, and other holiday-oriented goods." is True. Analyzing past seasonal fluctuations is beneficial for planning production of items.

An analysis of past seasonal fluctuations can be extremely helpful in planning production for items that are specifically oriented towards holidays and other seasonal events. For example, toys and dolls may experience a surge in demand during the holiday season, while Easter eggs and other holiday-oriented goods may experience an increase in demand during specific times of the year.

By analyzing past seasonal fluctuations, businesses can gain valuable insights into which products are likely to be in high demand during certain times of the year, and adjust their production schedules accordingly. This can help to ensure that businesses are able to meet customer demand and maximize sales during peak seasonal periods. Overall, an analysis of past seasonal fluctuations can be a valuable tool for businesses looking to optimize their production and sales strategies.

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option A is the correct one

It represents Mp orBp of a substance at a specific pressure

Answer:

i do not know

Explanation:

858.185 grams of Carbon Dioxide can be produced when 6.50 moles of Propane is burned.

What is Propane?

Propane is a three-carbon alkane and has the molecular formula C3H8. In addition to low-emission public transportation, propane is also used as fuel in home and industrial applications.

When 1 mole of Propane undergoes combustion in presence of oxygen, 3 moles of Carbon Dioxide is produced.

Using this, we can calculate that

6.50 moles of propane x 3 gives us 19.50 moles of Carbon Dioxide.

Converting moles to grams, we get 1 mole of CO2 is 44.009 grams.

Therefore, 19.50 x 44.009 = 858.185 grams of CO2.

Hence, we can say that 858.185 grams of CO2 is produced when 6.5 moles of propane is burned.

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Burning 6.50 moles of propane can result in the production of 858.185 grammes of carbon dioxide.

What is Propane?
The chemical formula for propane is C3H8, a three-carbon alkane. In addition to being a fuel for low-emission public transportation, propane is also employed in domestic and commercial settings. Three moles of carbon dioxide are created when one mole of propane is burned in the presence of oxygen.

With this, we can determine that

We get 19.50 moles of carbon dioxide when we multiply 6.50 moles of propane by 3.
1 mole of CO2 is equal to 44.009 grammes when converted to grammes.
As a result, 19.50 times 44.009 equals 858.185 grammes of CO2.

Thus, we can state that the combustion of 6.5 moles of propane results in the production of 858.185 grammes of CO2.

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Answer:

The metals list which makes up the periodic table includes iron, lead, gold, aluminum, platinum, uranium, zinc, lithium, sodium, tin, silver, etc.

Explanation:

Answer:

iron, lead, gold, aluminum, platinum, uranium, zinc, lithium, sodium, tin, silver

Explanation:

Photosynthesis is a redox reaction. This means that H₂O is oxidized during the light reactions and CO₂ is reduced during the Calvin cycle.

The chemical reaction in which the oxidation and reduction take place simultaneously is known as a redox reaction. In this type of reaction, the reactants that are reduced gain electrons, while the reactants that are oxidized lose electrons during the reaction.

The oxidation of water and the reduction of carbon dioxide is the core of photosynthesis, an energy transducing process in which light energy is converted to chemical energy. During photosynthesis, water molecules are oxidized to produce oxygen gas and positively charged hydrogen ions. The process of photosynthesis is of two types, light-dependent reactions and light-independent reactions.

The light-dependent reactions occur in the thylakoid membranes of chloroplasts and involve the conversion of light energy into chemical energy. On the other hand, the light-independent reactions take place in the stroma of chloroplasts, where carbon dioxide is reduced to produce glucose molecules. Therefore, Photosynthesis is a redox reaction. This means that H2O is oxidized during the light reactions and CO2 is reduced during the Calvin cycle.

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In solution 4 of part b, both the hydronium concentration and hydroxide concentration are 1 M due to the neutralization reaction between HCl and NaOH. The initial concentrations of H₃O⁺ and OH⁻ were 0.1 M, but they reacted to form water and resulted in equal final concentrations of 1 M for both ions.

To calculate the hydronium and hydroxide concentrations for solution 4 in part b, we need to first understand the equation for the reaction that occurred.

The equation given is: HCl + NaOH -> NaCl + H₂O

This tells us that one mole of HCl reacts with one mole of NaOH to produce one mole of NaCl and one mole of water.

Based on this equation, we know that the initial concentration of hydroxide ions (OH-) in solution 4 is equal to the initial concentration of sodium hydroxide (NaOH), which was given as 0.1 M.

Next, we need to determine the concentration of hydronium ions (H₃O⁺). Since HCl is a strong acid, it completely dissociates in water to produce H₃O⁺ and Cl⁻ ions. Therefore, we can assume that the initial concentration of H₃O⁺ is equal to the initial concentration of HCl, which was also given as 0.1 M.

Now, let's consider what happens when the HCl and NaOH are mixed together. They react to form NaCl and water, which means that the concentrations of H₃O⁺ and OH⁻ will change.

From the equation, we can see that the reaction consumes one mole of HCl and one mole of NaOH. This means that the final concentration of HCl and NaOH will both be zero.

To determine the final concentration of OH-, we need to use the fact that the reaction produces one mole of water for every mole of NaOH that reacts. Therefore, the final concentration of OH⁻ will be equal to the initial concentration of NaOH (0.1 M) divided by the volume of the solution.

If we assume that the volume of the solution is 100 mL (as stated in the question), then the final concentration of OH- will be:

[OH⁻] = 0.1 M / 0.1 L = 1 M

Finally, we can use the fact that the concentration of H₃O⁺ and OH⁻ must be equal in a neutral solution to determine the final concentration of H₃O⁺.

Since the final concentration of OH⁻ is 1 M, we know that the final concentration of H₃O⁺ must also be 1 M.

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This is True because: In the energy interactive, the arrow labeled C represents the conversion of chemical energy to mechanical energy.

When you click on this arrow, it shows the process of a person eating food, which is an example of chemical energy being transferred to mechanical energy in the form of muscle movement. The chemical energy stored in the food molecules is released through digestion and cellular respiration, and this energy is then used by the muscles to perform mechanical work, such as walking or lifting objects.

True or False. The arrow labeled A represents a transfer of solar energy to chemical energy. Explain why this is true or false.

This is True because: The arrow labeled A in the energy interactive represents the process of photosynthesis, where plants convert solar energy into chemical energy in the form of glucose. When you click on this arrow, it shows sunlight being absorbed by the plants, which is then used to power the conversion of carbon dioxide and water into glucose through the process of photosynthesis. This glucose is a form of chemical energy that can be stored and used by the plants for growth, reproduction, and other metabolic activities.

The arrow that represents the release of carbon dioxide is arrow B. The process occurring at this arrow is cellular respiration. When you click on arrow B in the interactive, it shows the breakdown of glucose molecules in living organisms, releasing carbon dioxide as a byproduct. Cellular respiration is the process by which cells obtain energy from glucose molecules and produce carbon dioxide and water as waste products.

The arrows that indicate a process that cycles carbon from living or nonliving organisms are arrows B and C. The processes represented by these arrows are photosynthesis and cellular respiration, respectively. Photosynthesis is the process by which plants convert carbon dioxide from the atmosphere into glucose, thereby removing carbon from the environment. Cellular respiration, on the other hand, is the process by which living organisms, including plants, break down glucose to release energy and produce carbon dioxide as a byproduct. These two processes form a cycle where carbon is constantly exchanged between the living and nonliving components of an ecosystem.

The arrows that represent reactions demonstrating a conservation of mass and energy are arrows A and C. Arrow A represents photosynthesis, where solar energy is converted into chemical energy, and arrow C represents the conversion of chemical energy to mechanical energy through processes such as cellular respiration and muscle movement. These reactions demonstrate the conservation of mass and energy because while the form of energy changes (from solar to chemical to mechanical), the total amount of energy and mass in the system remains constant. In photosynthesis, the solar energy is transformed into chemical energy stored in glucose molecules, while in cellular respiration and muscle movement, the chemical energy is converted into mechanical energy. Throughout these transformations, the total energy and mass are conserved, adhering to the fundamental principle of conservation of energy and mass in nature.

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The type of solvent used with a marker can greatly affect the reaction and outcome of the marker. When selecting a solvent, it is important to consider the polar or non-polar nature of both the solvent and the marker in order to achieve the desired result.

Solvents are liquids that are used to dissolve substances and are an important aspect of chemical reactions and processes. When it comes to markers, the type of solvent used can greatly affect the reaction and outcome of the marker.

In general, solvents can be classified as polar or non-polar. Polar solvents, such as water, have a positive and negative end, while non-polar solvents, such as oil, have a more uniform distribution of electrons. The solubility of a substance is determined by its polar or non-polar nature and the polar or non-polar nature of the solvent.

Markers contain various types of dyes or pigments that can be either polar or non-polar. When a polar solvent, such as water, is used with a polar marker, the marker will dissolve easily, leading to a more intense and uniform color. On the other hand, when a non-polar solvent, such as alcohol, is used with a polar marker, the marker may not dissolve as well and the color may be lighter or less intense.

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Answer:

8.31 KPa.L/Kmol

Explanation:

From the question given above, the following data were obtained:

Pressure = 101.3 KPa

Temperature (T) = 0 °C = 273 K

Number of mole (n) = 1 mole

Volume = 22.4 L

Gas constant (R) =?

The gas constant can be obtained as follow:

PV = nRT

101.3 × 22.4 = 1 × R × 273

2269.12 = R × 273

Divide both side by 273

R = 2269.12 / 273

R = 8.31 KPa.L/Kmol

Therefore, the value of the gas constant is 8.31 KPa.L/Kmol

The energy are there in one photon of orange light whose wavelength is 630nm is  \(3.15401\times10^{-19}\) Joules.

W=c/v, c=speed of light, v=frequency

\(6.3 \times 10^-7=3 \times 10^8/v\)

\(v=3 \times 10^8 / 6.3 \times 10^-7\)

\(v=4.76 X 10^14 Hz\)-frequency of the yellow light.

E=hv, h=Planck's constant,

\(E=(4.76 \times 10^14)Hz \times 6.62607×10^-34 J s\)

\(E=3.15401\times10^{-19}\) Joules- the energy of a single photon of yellow light.

Planck's constant or Planck's constant, is a fundamental physical constant of quantum mechanics. The constant gives the ratio of the energy of the photon to its frequency, and for mass-energy equivalent, the ratio of mass to frequency.

In quantum mechanics, energy is exchanged and absorbed in certain amounts called quanta. The Planck constant is a number that defines the amount of energy in these quantities and expresses how small things can be. Learn more about Planck's constant in this infographic.

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The intermolecular forces in polar molecules are stronger than in nonpolar molecules, resulting in a higher boiling point. Thus, nonpolar molecules possess greater intermolecular forces between them.

Kinetic energy refers to the energy possessed by an object as a result of its motion. It is determined by an object's mass and velocity, and it is a scalar quantity, meaning it does not have a direction.

The amount of kinetic energy in a substance is determined by its temperature; substances with higher temperatures have more kinetic energy.Kinetic energy in polar and nonpolar molecules:In polar molecules, such as water, the electron density is unevenly distributed, resulting in a partial positive and negative charge.

Nonpolar molecules, such as carbon dioxide, do not have a partial charge because their electrons are evenly distributed. As a result, the intermolecular forces in polar molecules are stronger than in nonpolar molecules, resulting in a higher boiling point. This means that polar molecules have a greater amount of kinetic energy and will move faster than nonpolar molecules at the same temperature.

The boiling point of water is much higher than the boiling point of carbon dioxide, which is a nonpolar molecule. This indicates that water molecules have a higher kinetic energy and are more active than carbon dioxide molecules because they have stronger intermolecular forces due to hydrogen bonding.

Aside from that, the movement of particles in nonpolar molecules is faster because they have fewer intermolecular forces than polar molecules. When polar molecules are heated to 100 K, their kinetic energy increases, resulting in stronger intermolecular forces and a higher boiling point than nonpolar molecules.

As a result, polar molecules have a greater amount of kinetic energy than nonpolar molecules.

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Answer:

74.3 g/mol

Explanation:

PV=nRT

P=745 mmHg: (change mmHg to atm) 745/760 = 0.9803atm

v = 0.35 L

T = 370 K

rearrange the formula above: n = \(\frac{PV}{RT}\)

plug in the info: \(\frac{(0.9803 atm)(0.35 L)}{(0.08206\frac{atm*L}{mol*K}) (370K)}\) = 0.01130 mol

then take the mass / mole = \(\frac{0.8394g}{0.01130mol}\) = 74.3 g/mol

The amount of concentrated solution needed is (0.286 M)(65 mL) / C M, and the amount of water needed is 65 mL minus the volume of the concentrated solution.

To calculate the molarity of Kool Aid desired, we need to determine the number of moles of Kool Aid powder and sugar in the package. Since the molecular formula for sugar is C12H22O11, we can calculate its molar mass as follows:

Molar mass of C12H22O11 = (12 * 12.01) + (22 * 1.01) + (11 * 16.00)

= 144.12 + 22.22 + 176.00

= 342.34 g/mol

Given that the package contains 4.25 grams of Kool Aid powder, we can calculate the number of moles of Kool Aid powder using its molar mass:

Number of moles of Kool Aid powder = Mass / Molar mass

= 4.25 g / 342.34 g/mol

≈ 0.0124 mol

Similarly, for the sugar, which has a molar mass of 342.34 g/mol, we can calculate the number of moles of sugar using its mass:

Number of moles of sugar = Mass / Molar mass

= 192.00 g / 342.34 g/mol

≈ 0.5612 mol

Now, to calculate the molarity of the desired Kool Aid solution, we need to determine the volume of water. Given that 1.06 quarts is equal to 1 liter, and we have 2.00 quarts of water, we can convert it to liters as follows:

Volume of water = 2.00 quarts * (1.06 liters / 1 quart)

= 2.12 liters

To find the molarity, we use the formula:

Molarity (M) = Number of moles / Volume (in liters)

Molarity of Kool Aid desired = (0.0124 mol + 0.5612 mol) / 2.12 L

≈ 0.286 M

To prepare 65 mL of the desired molarity, we can use dilution calculations. We need to determine the volume of concentrated solution and the volume of water needed.

Let's assume the concentration of the concentrated Kool Aid solution is C M. Using the dilution formula:

(C1)(V1) = (C2)(V2)where C1 is the initial concentration, V1 is the initial volume, C2 is the final concentration, and V2 is the final volume.

Given that C1 = C M and V1 = V mL, and we want to prepare a final volume of 65 mL (V2 = 65 mL) with a final concentration of 0.286 M (C2 = 0.286 M), we can rearrange the formula to solve for the volume of the concentrated solution:

(C M)(V mL) = (0.286 M)(65 mL)

V mL = (0.286 M)(65 mL) / C M

So, the amount of concentrated solution needed is (0.286 M)(65 mL) / C M, and the amount of water needed is 65 mL minus the volume of the concentrated solution.

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Se2+ and I- are isoelectronic because they both have 54 electrons and the same electron configuration, which is 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6. The correct answer is C.

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The hydrogen ion concentration, [H⁺], given that the pH is 2.0 is 1×10⁻² M

We know that the pH of a solution is given by the following formula:

pH = -Log [H⁺]

Where

With that above formula, the hydrogen ion concentration, [H⁺] of the solution can be obtained as follow:

pH = -Log [H⁺]

2 = -Log [H⁺]

Multiply through by -1

-2 = Log [H⁺]

Take the anti-log of -2

[H⁺] = Anti-log -2

[H⁺] = 1×10⁻² M

Thus, from the above calculation, we can conclude that the hydrogen ion concentration, [H⁺] is 1×10⁻² M

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Answer:

545.7 degrees

Explanation:

Hope this helps :D

To calculate the theoretical mass percentage of oxygen in potassium chlorate (KClO3), we need to find the molar mass of KClO3 and the molar mass of oxygen.

The molar mass of KClO3 can be calculated by adding the atomic masses of its constituent elements:

K = 39.10 g/mol

Cl = 35.45 g/mol

O = 3 x 16.00 g/mol = 48.00 g/mol

Molar mass of KClO3 = 39.10 g/mol + 35.45 g/mol + 48.00 g/mol = 122.55 g/mol

The molar mass of oxygen is 16.00 g/mol.

The percentage of oxygen by mass in KClO3 can be calculated using the formula:

(molar mass of oxygen / molar mass of KClO3) x 100

= (16.00 g/mol / 122.55 g/mol) x 100

= 13.05%

Therefore, the theoretical mass percentage of oxygen in potassium chlorate (KClO3) is 13.05%.

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To calculate the mass of magnesium we must subtract the weight of the beaker and the magnesium minus the weight of the beaker, we do it as follows:

So, the weight of Magnesium is 0.99g