the stopcock between the two reaction containers is opened, and the reaction proceeds using proper catalysts. calculate the partial pressure of no after the reaction is complete. assume 100% yield for the reaction, assume the final container volume is 3.00 l, and assume the temperature is constant.

Answer:

The amount of energy needed to raise the temperature of 1 g of water by 1 degree Celcius or (1 Kelvin) equals 1 calorie. And 1 calorie equals 4,184 Joule. So if you want to raise the temperature of 1 litre of water (1 litre = 1000g for water) by 80 degrees Celcius, your calculation should look like this: 1000g*4,184J/(g*°C)*80°C= 334 720 Joules

1 kWh = 3 600 000 Joules, because 1 watt of power during 1 second equals 1 Joule. So 3600 seconds in 1 hour multiplied with a power of 1000 Watt equals 3 600 000 Joules.

334 720 / 3 600 000 = 0,093 kWh of energy to heat 1 kg of water from 20 °C tot 100 °C

If you want to deliver 0,093 kWh in 1 minute instead of 1 hour, the required power output during that minute would be 0,093*60 = 5,58 kW or 5580 Watt.

This also passes the common sense test since a regulator water boiler (for coffee etc.) outputs around 1500 to 2000 watt and using such as device to cook a full litre of water takes more than 1 one minute, more like 3 to 4 minutes which is to be expected if you go through the math.

Compound          Type of IMFs                   Sublime at STP?

Carbon dioxide       London dispersion         Yes

Hydrogen fluoride  Hydrogen bonding   No

Calcium chloride     Ionic bonding                  No

Naphthalene        London dispersion         Yes

Iodine                      London dispersion        Yes

Sodium chloride        Ionic bonding                 No

Water                    Hydrogen bonding         No

A chemical compound is described as  a chemical substance composed of many identical molecules containing atoms from more than one chemical element held together by chemical bonds.

London dispersion forces are also described as a type of intermolecular force acting between atoms and molecules that are normally electrically symmetric.

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The arrangement of the given isoelectronic series in order of their decreasing radius is N³⁻ > O²⁻ > F⁻ > Na⁺ > Mg²⁺.

We are aware that, on the periodic table, the atomic radius of an element drops as one moves to the right and increases as one moves downward.

As the protons now exert a stronger force on the remaining electrons, the atomic radius of elements reduces when an electron is removed from the atom. The radius gets smaller as more electrons are taken out. The radius of an isoelectronic species will therefore be smaller the more positive charge it possesses.

When electrons are added to an atom, the force of attraction between the protons weakens due to the more protons present, and the electrons experience greater self-repulsion as a result of being packed closer together. To counteract this, the atomic radius of the ion is increased in order to reduce self-repulsion. As a result, the radius of the isoelectronic species increases as negative charge increases.

We can see from this that the atomic radius reduces as the positive charge rises.

As a result, the species are arranged in order of decreasing atomic radius as follows:

N³⁻ > O²⁻ > F⁻ > Na⁺ > Mg²⁺

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Answer:

Heat, electricity x

Explanation:

Hope this helps! :) x

The number of moles of N2 produced in the reaction is 3.69 moles. To calculate the number of moles of N2 produced in a reaction, we need to use the ideal gas law equation, PV = nRT.

In this equation, P represents pressure, V represents volume, n represents the number of moles, R represents the gas constant, and T represents temperature.
First, we need to convert the temperature to Kelvin by adding 273.15 to 21.5, which gives us 294.65 K.
Next, we need to convert the volume to litres by dividing 110.0 mL by 1000, which gives us 0.110 L.
Now we can plug in the values we have into the ideal gas law equation:
(2.75 atm)(0.110 L) = n(0.0821 L atm/K mol)(294.65 K)
Simplifying this equation, we get:
0.3025 = 0.0821n
To solve for n, we divide both sides by 0.0821:
n = 3.69 moles of N2

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Answer:

15 g

Explanation:

1. According to the Law of Conservation of Mass, the sum of the products should be 105 g because 70 g + 35 g = 105 g.

2. If 90g of solution was produced and there's supposed to be 105 g, then the remaining grams would be equal to the mass of the gas.

3. 105 g - 90g = 15 g

The first step of the reaction, we have  reaction between a nucleophile and an electrophile.

We can see that in the first step of the reaction, we have  reaction between a nucleophile and an electrophile. In this case, the electrophile would have to be an alkyl halide which produces a carbocation as show in the image attached. What we have here is quite similar or  like most of the organic reactions, this reaction occurs in a number of detailed or smaller steps and each step of the reaction is going to help to bring us closer to the end product of the entire steps of the reaction which is wat we target as we carry out the particular reaction.The second step involves the reduction of the alkyne with the use of a Lindlar catalyst. As such the reaction is poisoned and it stops at the alkyne stage rather than going on to obtain the alkane.

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Answer: Plate movement is thought to be driven by a combination of the motion of the seafloor away from spreading ridges due to variations in topography and density changes in the crust.

Hope this helps

Answer:

I believe the answer is A, an Element.

Explanation:

It's a substance that cannot be broken down into simpler substances. If I'm wrong, let me know!

Answer:

See explanation

Explanation:

Salt makes ice to melt faster than it usual. Sugar is another substance that influences the melting time of ice.

If i have a sample of pure ice and another sample of ice treated with sugar. I have to maintain the both initially at 0 degrees temperature and have a stop clock to measure the melting time.

I will ultimately notice that the sample of ice treated with sugar will melt faster than the pure sample of ice due to the presence of an impurity.

Answer:

20790 J

Explanation:

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

Mass (M) = 165 g.

Initial temperature (T1) 10 °C.

Final temperature (T2) = 40 °C.

Specific heat capacity (C) = 4.2 J/g °C.

Heat (Q) required =?

Next, we shall determine the change in temperature of water. This can be obtained as illustrated below:

Initial temperature (T1) 10 °C.

Final temperature (T2) = 40 °C.

Change in temperature (ΔT) =?

ΔT = T2 – T1

ΔT = 40 – 10

ΔT = 30 °C

Finally, we shall determine the heat energy required to raise the temperature of the water as follow:

Mass (M) = 165 g.

Specific heat capacity (C) = 4.2 J/g °C.

Change in temperature (ΔT) = 30 °C

Heat (Q) required =?

Q = MCΔT

Q = 165 × 4.2 × 30

Q = 20790 J

Thus, the heat energy required to raise the temperature of the water is 20790 J

The conversion of the following Fahrenheit temperatures to the Celsius and Kelvin scales are as follows:

a. –459°F, an extremely low temperature = -273 °C; 0 K

b. –40.°F, the answer to a trivia question = -40°C; 233.15 K

c. 68°F, room temperature = 20°C; 293.15 K

d. 7 × 10⁷ °F, temperature required to initiate fusion reactions in the sun = 3.85 × 10⁷ °C; 3.85 × 10⁷ K

a. –459°F, an extremely low temperature

When we have to convert a given temperature from Fahrenheit to Celsius, we use the following formula:

F = 9/5 C + 32

Where C is the Celsius temperature and F is the Fahrenheit temperature.

(i) To convert -459°F to Celsius, we have to put the value in the above formula and get the Celsius temperature.

F = 9/5 C + 32

-459 = 9/5 C + 32

C = (-459 - 32) × 5/9 = -273 °C is the Celsius temperature of -459°F

(ii) To convert -459°F to Kelvin, we add 273 to the Celsius temperature.

K = C + 273

K = -273 + 273 = 0 K is the Kelvin temperature of -459°F.

b. –40.°F, the answer to a trivia question

(i) To convert -40°F to Celsius, we use the given formula.

F = 9/5 C + 32

-40 = 9/5 C + 32

C = (-40 - 32) × 5/9 = -40°C is the Celsius temperature of -40°F.

(ii) To convert -40°F to Kelvin, we first convert the Celsius temperature to Kelvin by adding 273.15.

K = C + 273.15

K = -40 + 273.15 = 233.15 K is the Kelvin temperature of -40°F.

c. 68°F, room temperature

(i) To convert 68°F to Celsius, we use the given formula.

F = 9/5 C + 32

68 = 9/5 C + 32

C = (68 - 32) × 5/9 = 20°C is the Celsius temperature of 68°F.

(ii) To convert 68°F to Kelvin, we first convert the Celsius temperature to Kelvin by adding 273.15.

K = C + 273.15

K = 20 + 273.15 = 293.15 K is the Kelvin temperature of 68°F.

d. 7 × 10⁷ °F, temperature required to initiate fusion reactions in the sun

(i) To convert 7 × 10⁷ °F to Celsius, we use the given formula.

F = 9/5 C + 32

7 × 10⁷ = 9/5 C + 32

C = (7 × 10⁷ - 32) × 5/9 = 3.85 × 10⁷ °C is the Celsius temperature of 7 × 10⁷ °F.

(ii) To convert 7 × 10⁷ °F to Kelvin, we first convert the Celsius temperature to Kelvin by adding 273.15.

K = C + 273.15

K = 3.85 × 10⁷ + 273.15 = 3.85 × 10⁷ K is the Kelvin temperature of 7 × 10⁷ °F.

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It would take approximately 157 days for 99.9% of the radioactive phosphorus-32 to decay so that you can safely wear the shoes again.

To determine how long it would take before 99.9% of the radioactive material phosphorus-32 has decayed so that you can safely wear the shoes again, we need to consider the half-life of phosphorus-32, which is 14.29 days.

First, we need to determine the number of half-lives it takes to reach 99.9% decay. Using the formula:

Final Amount = Initial Amount * (1/2)^n

Where:
- Final Amount is the remaining radioactive material (0.1% in this case)
- Initial Amount is the starting amount (100% in this case)
- n is the number of half-lives

0.001 = 1 * (1/2)^n
n = log(0.001) / log(0.5)
n ≈ 10.08

Since n must be an integer, we'll round up to 11 half-lives to ensure at least 99.9% decay.

Finally, multiply the number of half-lives by the half-life duration:

11 half-lives * 14.29 days per half-life ≈ 157.19 days

So, it would take approximately 157 days for 99.9% of the radioactive phosphorus-32 to decay so that you can safely wear the shoes again.

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Answer:

OX-Y-Z

Explanation:

its the correct answer

The correct order from the most amount of motion( Kinetic energy) to the least amount of motion is Y (gas), Z (liquid), and X (ice). The correct answer is C, Y-Z-X.

In the given sequence, the states of matter with the most amount of motion (kinetic energy) to the least amount of motion are as follows:

Y - Gas (highest kinetic energy, molecules move freely and quickly in all directions)

Z - Liquid (intermediate kinetic energy, molecules have some freedom of movement but are more closely packed than in a gas)

X - Ice (lowest kinetic energy, molecules are tightly packed and have minimal movement, as it is in a solid state)

This sequence reflects the increasing freedom of movement and mobility of molecules as they transition from a solid to a liquid to a gas state.

Thus, the correct option is C.

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Answer:

This is not a redox reaction.

Explanation:

A redox reaction is a reaction that involves reduction and oxidation processes. The best way to identify a redox reaction. Changes in the oxidation number f the species indicates that it is a redox reaction.

Na+

Reactant side = +1, Product Side = +1; No change

Cl-

Reactant side = -1, Product Side = -1; No change

Ag+

Reactant side = +1, Product Side = +1; No change

N

Reactant side = +5, Product Side = +5; No change

O

Reactant side = -2, Product Side = -2; No change

There is no change in any of the oxidation numbers, Hence this is not a redox reaction.

The given chemical reaction is, 2H2O2 (aq) → 2H2O (l) + O2 (g).

It represents the decomposition of hydrogen peroxide (H2O2) into water (H2O) and oxygen gas (O2). This reaction is an example of a redox reaction, where both reduction and oxidation occur simultaneously.

In this case, hydrogen peroxide acts as both the oxidizing and reducing agent.

During the reaction, the oxygen in H2O2 is reduced from an oxidation state of -1 to -2 in water, while another oxygen is oxidized from an oxidation state of -1 to 0 in oxygen gas. This reaction is exothermic, meaning it releases energy in the form of heat. It can be catalyzed by various substances, such as potassium iodide, manganese dioxide, or even enzymes like catalase found in our bodies.

To summarize, the given reaction, 2H2O2 (aq) → 2H2O (l) + O2 (g), demonstrates the decomposition of hydrogen peroxide into water and oxygen gas, involving redox processes and the participation of an appropriate catalyst to speed up the reaction.

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Therefore, to make 3.00 L of a 1.90 M solution of sodium hydroxide, 228 grammes of sodium hydroxide must be dissolved.

We need to dilute 40 grammes of sodium hydroxide in one litre of water in order to create a solution with a 1 molar concentration. You can make 1M NaOH solution by weighing 39.9 g of NaOH granules and dissolving them in 1 litre of water.

We can use the following method to calculate the mass of sodium hydroxide needed to make the solution:

m = M × V × MW

where:

m = mass of solute (in grams)

M = molarity of the solution (in moles per liter)

V = volume of the solution (in liters)

MW = molecular weight of the solute (in grams per mole)

Substituting the given values, we get:

m = 1.90 mol/L × 3.00 L × 40.00 g/mol

m = 228 g.

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We can see here that organizing the information, we have:

Order from the Sun:

Atmosphere: Jupiter and Saturn have thick atmospheres composed mainly of hydrogen and helium, while Uranus and Neptune have thick atmospheres containing methane.

Moons: Jupiter has 79 moons, Saturn has 82 moons, Uranus has 27 moons, Neptune has 14 moons, Pluto has 1 moon (Charon).

A planet is a celestial body that orbits around a star, is spherical in shape, and has cleared its orbit of other debris. To be considered a planet, the object must be massive enough for its own gravity to pull it into a roughly spherical shape and it must dominate its orbit, meaning it has cleared its orbit of other debris.

In our solar system, there are eight officially recognized planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.

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In the below given ways we can give 3 laws and 3 goals that can make a better community. Law is a system of rules formed and enforced by social or political organizations.

Law is a system of rules formed and enforced by social or political organizations to regulate conduct, the precise definition of which has long been debated. It has been regarded as a science as well as an art form.

3 laws and 3 goals that can make a better community are:

When enforcing community rules, be fair.

Keep an eye out for anonymous complaints.

Keep community rules as well as terminology as minimal as possible.

Therefore, in the above given ways we can give 3 laws and 3 goals that can make a better community.

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Explanation:

T1 should be=50k

50kelvin

The volume in liters, of 0.250 mole of oxygen gas at 20.0 C and 0.974 atm of pressure is 6.174L.

The volume of a substance can be calculated by using Avogadro's law equation as follows:

PV = nRT

Where;

According to this question, a 0.250 mole of oxygen gas at 20.0 C and 0.974 atm of pressure. The volume of the gas is calculated as follows:

0.974 × V = 0.250 × 293 × 0.0821

0.974V = 6.013825

V = 6.174L

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The correct answer is that proton is the subatomic particle that gives the nucleus an overall positive charge.

A proton is a stable subatomic particle with the designations p, H+, or 1H+ with an electric charge of +1 e. (elementary charge). Its mass is just somewhat less than a neutron and 1,836 times more than that of an electron (the proton–electron mass ratio). Protons and neutrons, which have masses of around one atomic mass unit each, are together referred to as "nucleons" (particles present in atomic nuclei).

One or more protons can be found in the nucleus of every atom. They provide the main electrical attraction and holding power for the atomic electrons. An element may be identified by its atomic number, which is the quantity of protons in its nucleus (represented by the symbol Z).

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To find the volume of chlorine gas at STP (standard temperature and pressure), we need to first determine the number of moles of Cl2 present in the given sample at 885 torr and 25°C using the Ideal Gas Law equation:

PV = nRT

Where:
P = pressure in atm
V = volume in L
n = number of moles
R = gas constant (0.0821 L atm/mol K)
T = temperature in Kelvin

Converting the given pressure and temperature to atm and Kelvin, respectively, we get:

P = 885 torr / 760 torr/atm = 1.16 atm
T = 25°C + 273.15 = 298.15 K

Substituting these values into the Ideal Gas Law equation and solving for n, we get:

n = PV/RT = (1.16 atm)(8.40 L)/(0.0821 L atm/mol K)(298.15 K) = 0.378 mol

Now, at STP, the pressure is 1 atm and the temperature is 0°C or 273.15 K. Using the molar volume of a gas at STP (which is 22.4 L/mol), we can find the volume of Cl2 gas at STP:

V = n x 22.4 L/mol = 0.378 mol x 22.4 L/mol = 8.46 L

The volume of Cl2 gas at STP is 8.46 L.

we are given the volume, pressure, and temperature of Cl2 gas. Using the Ideal Gas Law equation, we can find the number of moles of Cl2 gas present in the given sample. Then, by using the molar volume of a gas at STP, we can find the volume of Cl2 gas at STP. It is important to convert the given pressure and temperature to the correct units (atm and Kelvin) before applying the Ideal Gas Law equation. To find the volume that Cl2 will occupy at STP, we'll use the combined gas law formula.
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Answer:

.-.

Explanation:

A hydrocarbon is an organic compound in organic chemistry that is made entirely of hydrogen and carbon.

carbon 81.7%

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The main reservoirs of the carbon cycle are the atmosphere, oceans, land (including vegetation and soils), and fossil fuels. In these reservoirs, carbon exists in both inorganic and organic forms.

The inorganic carbon cycle involves the exchange of carbon dioxide (CO2) between the atmosphere and oceans through processes like photosynthesis and respiration.

Organic carbon, on the other hand, is found in living organisms, dead organic matter, and soil organic matter. It is cycled through processes such as decomposition and consumption by organisms. The interactions between the inorganic and organic carbon cycles occur primarily in the biosphere, where photosynthesis converts inorganic carbon into organic carbon compounds. While inorganic carbon is primarily in the form of CO2, organic carbon is present in complex organic molecules. Both forms of carbon play crucial roles in energy transfer, nutrient cycling, and climate regulation.

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Using the calculated molarity of the unknown acid, you can use the Rice table to determine the initial pH of the solution.


The rice table is a tool that is used to determine the unknown variables when calculating equilibrium concentrations. When titrating an unknown acid, the molarity of the solution is determined by using stoichiometric ratios. Once the molarity of the unknown acid is known, the Rice table can be used to determine the initial pH of the solution.

This is achieved by setting up a table that shows the initial concentration of each species, the change in concentration, and the equilibrium concentration. By using the equilibrium concentrations, it is possible to determine the equilibrium constant and calculate the pH of the solution.

In conclusion, if the initial pH determined using the Rice table matches the actual pH of the titration curve, it confirms that the calculation of the molarity was correct. If the pH values do not match, it is an indication of an error in the calculations, and a recalculation is necessary.

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Approximately 6.02 x 1025 mole of sand particles would be present in the truck.

A substance's mole is equivalent to 6.022 x 1023 of that substance. (such as atoms, molecules, or ions). The number 6.022 1023 is referred to as "Avogadro's number" or "Avogadro's constant." To translate between particle mass and number, use the mole idea.

Yes, if we know how many moles of sand are in the truck, we can calculate how many sand particles are there.

Avogadro's number, which is the quantity of particles (atoms, molecules, or ions) in one mole of a substance, can be used to calculate the number of particles in a substance. The equivalent of 6.02 x 1023 particles/mol is Avogadro's number.

Number of particles = Avogadro's number x the number of moles

The quantity of sand particles can be determined as follows if the truck contains 100 moles of sand:

100 moles times 6.02 x 1023 particles/mol equals the number of particles.

6.02 x 1025 particles make up the total.

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Answer:

A. 1147.44 grams

Explanation:

Multiply volume by molarity to get the moles of solution.

5.85 M = mol/2.0 L

mol = (5.85 M)(2.0 L)

mol = 11.7

There is 11.7 moles of H2SO4.

Convert to grams with molar mass.

11.7 mol H2SO4 x (98.076 g/1 mol) = 1147.49 g

Closest answer is A, 1147.44 g.