when 1.3689 grams of chloric acid is neutralized with ammonium, 2,111 j of heat are released. what is the molar heat of neutralization for chloric acid? enter your answer with units of kj/mol please.

ANSWER :

❥ Distance :

❥ Displacement :

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Answer:

B (I guess) Hopefully below of the following Explanation or information enough for your reference. Thank you.

Explanation:

One of the major effects of heat transfer is temperature change: heating increases the temperature while cooling decreases it. We assume that there is no phase change and that no work is done on or by the system. Experiments show that the transferred heat depends on three factors—the change in temperature, the mass of the system, and the sub

 molecules and atoms. The motion of atoms create heat or thermal energy. The more motion, the more heat. If it has greater mass, greater thermal energy. Lower mass, low thermal energy.

 More mass = More heat that can be transferred.

Answer:

Three thousand seven hundred fifty hours

The average velocity of the plane during the total time is 16.7 km/hr.

The initial velocity of the plane, v₁ = 390 km/hr

The time taken for this travel, t₁ = 5 hours

The final velocity of the plane, v₂ = -450 km/h

The time taken for this travel, t₂ = 4 hours

The initial displacement of the plane, d₁ = v₁ x t₁

d₁ = 390 x 5

d₁ = 1950 km

The final displacement of the plane, d₂ = v₂ x t₂

d₂ = -450 x 4

d₂ = -1800 km

The average velocity of an object is the constant velocity that, over a certain amount of time, would produce the same resultant displacement as a variable velocity in the same time frame of reference.

The average velocity of the plane during the total time is given by,

Average velocity = total displacement/total time

v = (d₁ + d₂)/(t₁ + t₂)

v = (1950 + -1800)/(5 + 4)

v = 150/9

v = 16.7 km/hr

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Your question was incomplete, but most probably your question would be:

A plane travels at +390 km/h for 5 hours, and then at -450 km/h for 4 hours.  What is the plane's average velocity over the 9 hours of the flight?

Answer:

D

Explanation:

because the slope decreases

Answer:

Should be D the correct answer

Explanation:

The mass of the gas that fills the flask is 0.316 grams. To find the mass of the gas, we need to consider the changes in mass and volume of the flask before and after vaporization.

Firstly, we calculate the change in mass of the flask after vaporization, which is 123.907 g - 123.591 g = 0.316 g. This change in mass represents the mass of the vaporized liquid.

Next, we need to determine the volume of the flask. Since the flask was completely filled with water at 18.5 °C, we can assume that the volume of the flask is equal to the volume of water it can hold. We can use the density of water, which is approximately 1 g/cm³, to convert the mass of the water-filled flask (375.639 g) to volume.

Volume = Mass / Density = 375.639 g / 1 g/cm³ = 375.639 cm³

Now we need to consider the ideal gas law to relate the volume and mass of the gas at room temperature and pressure. The ideal gas law equation is PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature in Kelvin.

Since we know the temperature and pressure, we can rearrange the ideal gas law equation to solve for the number of moles (n):

n = PV / RT

Converting the pressure from mm Hg to atm (atmospheres) and the temperature from Celsius to Kelvin:

P = 760.2 mm Hg / 760 mm Hg/atm = 1 atm

T = 18.5 °C + 273.15 = 291.65 K

Substituting the values into the equation, we get:

\(n = (1 atm) \times (375.639 cm^3) / [(0.0821 L\,atm/mol\,K) \times (291.65 K)]=0.0123 mol\)

Finally, we convert the moles of gas to grams using the molar mass of the gas. Since the identity of the gas is not provided, we cannot determine its molar mass precisely. However, assuming the gas is a volatile organic compound, we can estimate its molar mass to be around 26 g/mol. Therefore, the mass of the gas is:

\(Mass = moles \times molar mass = (0.0123 mol) \times (26 g/mol) = 0.316 g\)

Hence, the mass of the gas that fills the flask is approximately 0.316 grams.

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The total energy of the oscillating object is approximately 7.96 J (joules).

To find the total energy of a 5.2 kg object oscillating on a spring with an amplitude of 67.5 cm (0.675 m) and a maximum acceleration of 4.5 m/s², you can use the formula for the potential energy stored in the spring at its maximum displacement:

Total energy (E) = (1/2) * k * A²

Where k is the spring constant and A is the amplitude (0.675 m). We can find the spring constant using the maximum acceleration and amplitude:

F = m * a_max = k * A

k = (m * a_max) / A

k = (5.2 kg * 4.5 m/s²) / 0.675 m = 34.8148 N/m

Now, plug the value of k and A into the total energy formula:

E = (1/2) * 34.8148 N/m * (0.675 m)² = 7.9624 J

So, the total energy of the oscillating object is approximately 7.96 J (joules).

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The class of laser that causes the greatest potential hazard is Class 4.

The individual who is fully responsible for the laser in his or her lab is the Laser Safety Officer (LSO) or the Principal Investigator (PI) of the lab. They are responsible for implementing and enforcing laser safety protocols, conducting risk assessments, providing training to personnel, and ensuring compliance with applicable regulations.

The proper immediate response to a laser accident involving an eye injury is as follows:

Ensure the safety of the affected person and others in the area by turning off the laser immediately.

If possible, assist the injured person to a safe area away from the laser beam.

Encourage the injured person to keep their eyes closed to minimize further damage.

Seek immediate medical attention for the injured person. Call emergency services or go to the nearest emergency room.

Provide any necessary information to medical professionals regarding the type of laser involved, laser parameters, and any known hazards associated with the laser.

Report the incident to the appropriate authorities within the organization, such as the Laser Safety Officer or supervisor.

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a) The magnitude of the net magnetic force that acts on the particle is 2.18 x 10-6 N.
b) The angle that the net force makes with respect to the x axis is 63.8°.

A magnetic field is a vector field that describes the magnetic influence on moving electric charges, electric currents, and magnetic materials. A moving charge in a magnetic field experiences a force perpendicular to its own velocity and to the magnetic field.Magnetic Field is the region around a magnetic material or a moving electric charge within which the force of magnetism acts. A pictorial representation of the magnetic field which describes how a magnetic force is distributed within and around a magnetic material.

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Answer:

umm??????? i dont understand

Explanation:

The intensity reflection coefficient (irc) is 1.

The ratio of the intensity of the reflected wave to the incident (transmitted) wave is known as the intensity reflection coefficient.

Intensity of incident (transmitted) sound wave = 50 W/cm².

As it  is totally reflected,  intensity of the reflected sound  wave = 50 W/cm².

Hence,  intensity reflection coefficient =

intensity of the reflected sound wave ÷ Intensity of incident sound wave

= 50  W/cm² /  50 W/cm².

= 1.

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d)A solar cell is an object that converts light into chemical energy.

It works by using sunlight to convert photons into electrons, which are then used to generate electricity. Solar cells can be used to power a variety of objects, such as calculators, phones, and other electronic devices. They can also be used to generate electricity for homes and businesses. Solar cells are made of special materials that allow them to capture light and convert it into energy. When sunlight hits the solar cell, electrons in the material become excited and move freely, creating an electric current. This current is then used to produce electricity.

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The statement the mechanical advantage of the lever is 16 is False.

Mechanical advantage MA = d/D where

Given that the effort arm is 8 meters long, d = distance moved by effort = 8 m.

Also, given that the resistance arm is 2 meters long, D = distance moved by load = 2 m.

So, substituting the values of the variables into the equation, we have

MA = d/D

MA = 8 m/2 m

MA = 4

Since MA = 4, so, the stament is False.

So, the statement the mechanical advantage of the lever is 16 is False.

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Answer:If you mean how much heat it can transfer as a thermal mass - in order to move heat from one place to another:

Typically the relationships are given by specific heat capacity (at different temperatures) and latent heats, plus the end-point temperatures to determine which of these conversion factors are relevant.

If time comes into it, you are looking at including shape and thermal conductivity at the minimum, so you really would need to be more specific

Explanation:

According to the given information A support force that completely balances the weight of an object at rest.

The normal force is another name for a support force. With the same amount of power as the book's downward weight, the table pushes up on the book. A support force—the upward force that balances an object's weight on a surface—holds the book steady on the table.

Pull force attributed to another item, such as "Pull attributed to Steve." The force here is identical to the push force, but it is directed at the thing that is pulling. Support force resulting from the ground (or from the object's surface): When two solid surfaces come in contact with one another, support force arises.

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The complete question is -

What is a support force ?

Answer:

7200 secs

Explanation:

Power is the rate at which work is done. Mathematically, it is represented as:

Power (P) = Energy (E) /Time (t)

P = E/t

Power is measured in Watt (W).

Energy is measured in Joule (J).

Time is measured in seconds (s).

In calculating for the power, we must expresed the energy in joules and the time in seconds.

For the question given above, we must convert 2 hours to seconds before calculating the power.

To convert from hours to seconds, we simply do the following:

1 hr = 3600 secs

Therefore,

2 hrs = 2 x 3600 = 7200 secs

Therefore, the value for the time, t will be 7200 secs.

Answer:

c

Explanation:

In the p-wave shadow zone where p waves don't pass during an earthquake. Refraction, a characteristic of waves, is what causes this to happen.

The shockwave or primary wave are other names for the P wave. Seismic waves are a subtype of elastic body wave. When compared to seismic waves, the P wave moves more quickly. When an earthquake hits the area in question, they are also the first sign we notice. They can spread through gases, liquids, and solids.

Richard Oldham noticed that there were at least ) two of seismic energy that travelled with different rates. These are now referred to as P- and S-waves. Waves that pass through or over the Earth are known as seismic waves.

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Energy refers to the ability or capacity to do work. Energy can be of various types as follows:

Kinetic energy is energy possessed by an object because of its motion while potential energy is energy possessed by an object because of its position or its condition.

The law of conservation of energy states that energy cannot be created nor destroyed but can only be transformed i.e. converted from one form to another.

Friction is a force that resists the relative motion or tendency to such motion of two bodies in contact.

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Answer:

B.

Explanation:

You cannot scrub the energy away. The energy is coming from the atoms themselves.

Moreover, according to the law of conservation of energy, energy cannot be created or destroyed. You cannot destroy energy.

E = mc^2

Equation above states the relationship between energy and mass. Therefore you cannot destroy matter or energy.

By examining the influence of surface area and material composition on thermal energy transfer in a controlled experiment, we can gain valuable insights into the fundamental factors that affect heat exchange. This knowledge can have practical applications in fields such as engineering, materials science, and energy efficiency.

A good question about the variables that affect thermal energy transfer in a controlled experiment could be: How does the surface area and material composition of an object influence the rate of thermal energy transfer?

By focusing on the surface area and material composition, we can investigate how these two variables affect the transfer of thermal energy. The surface area of an object determines the amount of area available for heat exchange, potentially affecting the rate of energy transfer. The material composition, on the other hand, can impact factors such as thermal conductivity, specific heat capacity, and emissivity, all of which play a role in how effectively heat is transferred.

To conduct the experiment, you can select objects of different materials and surface areas, such as metal plates or plastic blocks with varying dimensions. By exposing them to a controlled heat source and measuring the temperature change over time, you can analyze how the chosen variables affect thermal energy transfer.

This investigation would provide insights into the fundamental factors that influence heat exchange and can be used to inform practical applications in various fields such as engineering, materials science, and energy efficiency.

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Answer:

45

Explanation:

because you divide volume and mass

A radioactive isotope's half-life is the length of time it takes for one half of it to decay.

The duration needed for a quantity of a radioisotope to decay by half is known as its radioactive half-life. If an isotope has a half-life of only a few hours or less, the majority of the radioactivity will dissipate within a few days.

A radioactive element's half-life is the amount of time it takes for it to decay to half of its original value. It can be concluded from this that a source's activity has a half-life if it takes some time before it drops to half its starting value.

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The using the terms "steel wire" and focus on the relevant information. Here is the step-by-step explanation: We know that the cloth line is 10 meters long and made of stainless-steel wire.

The mass of the steel wire as 6 x 1.0² kg., which equals 6 kg. To find the time it takes for the signal to travel through the steel wire, we need to know the speed of sound in steel. The speed of sound in steel is approximately 5000 meters per second (m/s). Now that we know the speed of sound in steel, we can calculate the time it takes for the signal to travel the length of the wire (10 meters) using the formula: time = distance / speed. Plugging in the values, we get time = 10 meters / 5000 m/s. After calculating, we find that the time it takes for the signal to travel through the steel wire is 0.002 seconds, or 2 milliseconds. So, it takes 2 milliseconds for the signal to travel from one end of the steel wire to the other end after the boy taps it with a knife.

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Answer:

Heat for -20 to zero = .48 * 1000 = 480 calories

Heat to melt ice = 1000 * 79.7 = 79700 calories

Total calories required = 80,200 calories

80,200 cal * 4.19 J/cal = 336,000 J

336000 J / 1000 J/sec = 336 sec

336 sec / 60 sec/min = 5.6 min

(c - 5.55 min)

Answer:

See below ~

Explanation:

A decrease in the ice caps causes a(n) increase in the absorption of sunlight. This cause the global temperature to rise causing more ice caps to melt. As more ice caps melt, the temperature rises. This is an example of a negative feedback loop.

A decrease in the ice caps causes a(n) increase in the absorption of sunlight. This causes the global temperature to rise causing more ice caps to melt. As more ice caps melt, the temperature rises. This is an example of a negative feedback loop.

The options are followed by

Answer:

Explanation

✔ potential to kinetic

✔ kinetic to mechanical

✔ mechanical to electrical

Answer:

b , c , b is the answer

Explanation:

Answer:

Explanation:

0.1

Answer:

A E and F are the correct answers

Explanation:

Answer:

A E F are correct

Explanation:

Answer:

It depends upon the species. Some species do not live as well long, maybe 40 or 50 years for some palm trees, but some can live up to 5000 years, such as the Bristlecone Pine (Pinus longaeva). ×∧×

Explanation:

Answer:

In order to convert density to grams, you have to put the mass on one side of the equation, and the density and the volume on the other. Therefore, d * v = m. Multiply the density by the volume. Using the example in step 1, you would multiply 2 g/mL by 4mL.

Explanation:

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