The maximum mass of NH₃ that can be formed when 36.52 g of N₂ reacts with 10.62 g of H₂ is 44.35 g
Balanced equationN₂ + 3H₂ —> 2NH₃
Molar mass of N₂ = 14 × 2 = 28 g/mol
Mass of N₂ from the balanced equation = 1 × 28 = 28 g
Molar mass of H₂ = 2 × 1 = 2 g/mol
Mass of H₂ from the balanced equation = 3 × 2 = 6 g
Molar mass of NH₃ = 14 + (3×1) = 17 g/mol
Mass of NH₃ from the balanced equation = 2 × 17 = 34 g
SUMMARY
From the balanced equation above,
28 g of N₂ reacted with 6 g of H₂ to produce 34 g of NH₃
How to determine the limiting reactantFrom the balanced equation above,
28 g of N₂ reacted with 6 g of H₂
Therefore,
36.52 g of N₂ will react with = (36.52 × 6) / 28 = 7.83 g of H₂
From the above calculation, we can see that only 7.83 g out of 10.62 g of H₂ are required to react completely with 36.52 g of N₂.
Therefore, N₂ is the limiting reactant
How to determine the maximum mass of NH₃ producedFrom the balanced equation above,
28 g of N₂ reacted to produce 34 g of NH₃
Therefore,
36.52 g of N₂ will react to produce = (36.52 × 34) / 28 = 44.35 g of NH₃
Thus, the maximum mass of NH₃ obtained from the reaction is 44.35 g
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A photon of light has a wavelength of 0.050 cm. Calculate its energy.
Answer:
3.96×10^−22J
Explanation:
First find the frequency of the photon from the equation
c=fλ
∴f=c/λ
=3×10⁸m/s / 0.050×10^−2m
=6×10¹¹Hz.
Energy of such photons is quantized and given by
E=hf
=(6.6×10^−34)(6×10¹¹)
=3.96×10^−22J
Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. The energy of photon is 3.96×10⁻²²J.
What is electromagnetic wave?Electromagnetic wave is a wave which contain two component one is electric component and other is magnetic component. The electric and magnetic component are perpendicular to each other. There are so many wave that comes under electromagnetic wave like infrared wave , radio wave
There is a relation between energy of wave. frequency of wave, and wavelength of wave
Mathematically,
E=hc/λ
where,
E = energy of electromagnetic wave
h is planks constant having value 6.67×10⁻³⁴js
c is speed of light that is 3×10⁸m/s
λ is the wavelength of electromagnetic wave
frequency=speed of light/wavelength
=3×10⁸m/s / 0.050×10⁻²m
=6×10¹¹Hz.
E=h×frequency
=(6.6×10⁻³⁴)(6×10¹¹)
=3.96×10⁻²²J
Therefore, the energy of photon is 3.96×10⁻²²J.
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Acids increase the concentration of what in water?.
Answer:
Hydronium (H3O+) ions
Explanation:
Acids increase the concentration of hydronium ions in water and thus lower the pH (make it more acidic)
Answer:
The answer for this question is Hydrogen Ions
Ne double-replacement reaction of iron(ii) nitrate with potassium
ydroxide produces a precipitate of iron(iii) hydroxide.
fe(no3)3(aq) +3koh(aq) +3kno3(aq) + fe(oh)3(s)
that mass of iron(iii) hydroxide is produced when 50.0 g iron(iii)
itrate reacts with excess potassium hydroxide?
a 7.36 g fe(oh)3
w
b 22.1 g fe(oh)3
g
3
c 66.3 g fe(oh)3
d 50.0 g fe(oh)3
check it
skip
The mass of iron (III) oxide that will be produced would be 22.1 grams
Stoichiometric calculationFrom the equation of the reaction:
[tex]3KOH + Fe(NO_3)_3 --- > 3KNO_3 + Fe(OH)_3[/tex]
The mole ratio of iron (III) nitrate to iron (III) hydroxide is 1:1.
Mole of 50 g iron (III) nitrate = 50/241.86 = 0.207 moles
Equivalent mole of iron (III) hydroxide = 0.207 moles
Mass of 0.207 moles iron (III) hydroxide = 0.207 x 106.87 = 22.1 grams
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A police siren passes you with a frequency of 5000 Hz. Which correctly describes the sound wave after the police car passes you? The speed of sound is 340 m/s.
A. siren wavelength of 0.0068 meters, frequency you hear = less than 5000 Hz
B. siren wavelength of 0.0068 meters, frequency you hear = 5000 Hz
C. siren wavelength of 0.0068 meters, frequency you hear = more than 5000 Hz
D. siren wavelength of 5000 meters, frequency you hear = 5000 Hz
Answer:
siren wavelength of 0.0068 meters, frequency you hear = less than 5000 Hz
Explanation:
Q.A police siren passes you with a frequency of 5000 Hz. Which correctly describes the sound wave after the police car passes you? The speed of sound is 340 m/s.
(a) siren wavelength of 0.0068 meters, frequency you hear = less than 5000 Hz
(using doppler's effect)
What is the Doppler effect?Doppler effect is the apparent difference between the frequency at which sound or light waves leave a source and that at which they reach an observer, caused by the relative motion of the observer and the wave source.
Who discovered the Doppler Effect?Christian Johann Doppler, an Austrian mathematician, and physicist discovered the Doppler effect in 1842.
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For your experiment in part B, which factors would you keep constant?
Heating Different Amounts of a Substance
Why do ice cubes float to the top of a glass of water.
Answer:
Since the water is heavier, it displaces the lighter ice,
Explanation:
hope that helps
How do scientists organize dinosaur bones? By type and size. By size and location. By location and type.
Answer:
I'm pretty sure by type and size (I might be wrong).
Blank measurements are useful for determining buoyancy and identifying relationships between substances.
A. Weight
B. Meniscus
C. Density
Calcium is an element with several naturally-occurring isotopes.
(i) What is the meaning of the term element ?
Answer:
Element are substances made up of the same kind of atoms
If you could travel to any TIME PERIOD, when would go and why.
Answer:
I Would Go Back To When There Were Cavemen Because I Would Love To See How Things Went On And How Women/Men Handled Themselves
Explanation:
Why Would I Travel To When Cavemen Were Here?
Because I Have A Fuji Film And I Would Love To Come Back To This Day And Show Everyone That Cavemen/Dinosoars ARE Real
A helium balloon with an internal pressure of 1.00 atm and a volume of 4.50 L at 20.0˚C is released. What volume will the balloon occupy at an altitude where the pressure is 0.600 atm and the temperature is –20.0˚C?
GAS LAW:
Given:
Unknown:
Formula:
Solution:
FInal Answer: V2 =
Calculate the molarity of a 1.0l solution that contains 96g of nahco3
Answer:
1.1 M
Explanation:
The formula mass of sodium hydrogen carbonate is about 23+1+12+3(16)=84 g/mol, so 96 g is about 1.142 mol.
molarity = (moles of solute)/(liters of solution) = 1.1 M
ANSWER THIS QUESTION PLEASE!
Which part of the cell was most directly responsible for the shrunken appearance of the cell?
If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink.
What is osmosis ?
Osmosis is the net movement of water across a semipermeable membrane from an area of lower solute concentration to an area of higher solute concentration.
This may sound odd at first, since we usually talk about the diffusion of solutes that are dissolved in water, not about the movement of water itself.
If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink.
In an isotonic environment, there is no net water movement, so there is no change in the size of the cell.
When a cell is placed in a hypotonic environment, water will enter the cell, and the cell will swell.
Therefore If a cell is placed in a hypertonic solution, water will leave the cell, and the cell will shrink.
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How many moles are in 1.24 * 10^25 of carbon?
Answer:
2.059800664 x 10^47 moles
Explanation:
A student is studying a sample of neon in a container with a moveable piston (this means the container can change in size). If the sample in the container is initially at a pressure of 768.6 torr when the container has a volume of 93.2 mL, what is the pressure of the gas when the piston is moved so that the volume of the container becomes 140.2 mL?
Answer:
P2=672.1 torr
Explanation:
use the formula P1V1=P2V2, plug in the numbers so your equation should look like this (763.9)x(98.8)=P2(112.3) answer should be P2=672.1 torr
The resultant pressure of the sample of gas is 510.9 torr.
What is the relation between pressure and volume?Relation between the pressure and volume will be represented by the ideal gas equation PV = nRT, and for the given question required equation is:
P₁V₁ = P₂V₂, where
P₁ & V₁ are the pressure and volume of initial sample.
P₂ & V₂ are the pressure and volume of final sample.
On putting values from the question to the equation, we get
P₂ = (768.6)(93.2) / (140.2) = 510.9 torr
Hence resultant pressure is 510.9 torr.
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1 Defing polymerization
Answer:
Polymerization, any process in which relatively small molecules, called monomers, combine chemically to produce a very large chain-like or network molecule, called a polymer. The monomer molecules may be all alike, or they may represent two, three, or more different compounds.
Explanation:
:^)
gases are a unique state of matter because the volume of a gas can be compressed or expanded based on the pressure applied. robert boyle studied the changes in the volume of a gas as the pressure changes with a barometer. he found that the pressure is inversely proportional to volume when the mass and temperature remain constant. which equation represents the pressure-volume relationship of boyle's law?
Boyle's law gave the relation between the pressure and the volume of the gas. The equation can be represented as PV = constant (T and n are constant).
What is Boyle's law?Boyle's law gave the inverse relationship between the pressure and the volume of the hypothetical ideal gas when the moles and the temperature are constant. It can be shown as PV = constant.
The volume of the gas can be compressed by increasing the pressure, and the volume of the gas can be expanded by decreasing the pressure of the gas.
Therefore, Boyle's law gave the PV = constant.
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How much energy is released if a sample loses 0.001 kg mass through radioactive decay?
Explanation:
because the energy it can't be calculated
Based on log rules and the way ph is calculated, what is the difference in [oh– ] concentration between point a and point b. 101 105 106 107
Based on their pOH values, the difference in [OH– ] concentration between point A and point B is 10^6.
What is pH of a substance?The pH is determined by the concentration of Hydrogen ions [H+]. The higher the concentration of H+ ions, the lower the pH of a substance. If the concentration of H+ is greater than OH-, the material is acidic, i.e. the pH value is less than 7
In this case, the formula for this will be:
[tex]pH= -log[H+][/tex]
So we have:
[tex][OH]= 14-1= 10^{-13}\\[OH] = 14-7=10^{-7}[/tex]
Therefore, the difference in [OH– ] concentration between point A and point B is 10^6.
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Answer: 10^6
Explanation: edge2023
One atom has 11 protons and 13 neutrons. Another has 11 protons and 12 neutrons. Are they the same or different elements?
Answer:
deferent elements
Explanation:
because 11n 12 is not the same as well as13
Answer: They are the same elements
Explanation:
They're same elements because the number of electrons are same (number of protons=electrons).
The number neutrons don't matter.
If any two atoms have the same number of Electrons and protons and has different number of neutron's they still are the same element.
In a spontaneous fission reaction, the total mass of the products is _______________ the mass of the original elements.
Explanation:
is equal to the mass of the original elements
Why might chromatin be tangled in the nucleus?
Compare the properties of the four state of matter in terms of particle arrangement, particle motion, shape,
size, and compressibility
Solid-
shape-retains a fixed volume and shapenot easily compressibledoes not flow easily , Particles in a solid are tightly packed, usually in a regular pattern. Particles in a solid vibrate (jiggle) but generally do not move from place to place.liquid-
shape-assumes the shape of the part of the container which it occupiesnot easily compressibleParticles in a liquid are close together with no regular arrangement. Particles in a liquid vibrate, move about, and slide past each other.Gas-
shape-assumes the shape and volume of its containercompressibleParticles in a gas are well separated with no regular arrangement. Particles in a gas vibrate and move freely at high speeds.Plasma-
shape-variable volume and shapePlasma is slightly different from the other phases of matter, in that the high temperatures cause the atoms/particles to break apart into electrons and nuclei. This mixture of electrons and nuclei act similarly to gas particles, moving freely and have no distinct arrangement.a common chemicals used as a rising agent
is baking soda. it's chemical name is sodium
bicarbonate. it has a formula of NaHCO3.
what is the molar mass of sodium
bicarbonate?
It takes 83 ml of a 0. 45 m naoh solution to neutralize 235 ml of an hcl solution. what is the concentration of the hcl solution?.
Answer:Expert-verified answer
n(NaOH) = 0.037 moles of NaOH. HOPE THIS HELPS!!Apr 20, 2020
Explanation:
trru or false
The atomic number for lithium is 17.
Answer:
False; the correct atomic number for lithuim is 3
Explanation:
Answer to back it up
~rere
The radioactive decay of Uranium-238 releases alphas particles and results in a mass change of 0.135 g. Determine the amount of energy released by this reaction
a) 1.22 x 10^13J
b) 1.22 x 10^16J
c) 4.05 x 10^4J
d) 4.05 x 10^7J
This question involves the concept of binding energy.
The amount of energy released by this reaction is "a) 1.22 x 10¹³ m/s".
What amount of energy is released?The amount of energy that is released during the radioactive decay of any element is known as binding energy. This can be given by using the following formula:
[tex]E=\Delta mc^2[/tex]
where,
E = energy released = ?Δm = mass change = 0.135 g = 1.35 x 10⁻⁴ kgc = speed of light = 3 x 10⁸ m/sTherefore,
E = (1.35 x 10⁻⁴ kg)(3 x 10⁸ m/s)²
E = 1.22 x 10¹³ m/s
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Identify the correct type of heat transfer for A, B, and C in the picture. Using the picture, cite evidence for your choices.
The correct type of heat transfer for A, B, and C are conduction, convection and radiation respectively.
What is heat transfer?Heat transfer is a process in which amount of heat will be transferred from one object to any other object by various means.
In type A, heat is transferred through conduction process as in this transfer takes place due to direct contact of particles.In type B, heat is transferred through the convection process as in that process transfer of heat takes place through the medium.In type C, heat transfer done by the radiation as in that transfer through empty space.Hence at A, B and C heat transfer done through conduction, convection and radiation respectively.
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Answer:
heat transfer for A, B, and C are conduction, convection and radiation respectively.
hope you like it
Hydrochloric acid is a strong acid, and 100% of the acid molecules dissociate, forming H3O+ ions in aqueous solution. What does this information tell you about the relative dissociation of weaker acids?
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
According to above statement, HCl ( Hydrochloric acid ) is a strong acid, which when mixed in water dissociates complete in water to form H+ and Cl- ions that means 100% dissociation. but acids weaker than HCl shows relatively less dissociation.
That is less than 100% dissociation when mixed in water ~
This information tells us about the relative dissociation of weaker acids is that weaker acids dissociates less than 100%.
What is dissociation?Dissociation is defined as the breaking up of a compound into simpler constituents or components or parts. Ionic compounds dissociates in the water solution. Stronger acids have 100% ability to dissociate.
So we can conclude that this information tells us about the relative dissociation of weaker acids is that weaker acids dissociates less than 100%.
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