Answers
Answer:
PpN₂ = 0.326 atm
Explanation:
In this case, let's write the equilibrium reaction taking place here:
2NH₃(g) <------> 3H₂(g) + N₂(g)
Now, we know that when the reaction reach the equilibrium the partial pressure of H₂ is 0.978 atm, so, let's write an ICE chart and see what's happening here:
2NH₃(g) <------> 3H₂(g) + N₂(g)
i) y 0 0
c) -2x +3x x
e) y-2x 3x x
At the beggining we just have the sample of NH₃, we don't know how much but we don't need that data to get the partial pressure. In equilibrium, its produced hydrogen and nitrogen, and we know how much of hydrogen was produced, so, with that we can solve for the value of the partial pressure of NO by a simple math operation:
PpH₂ = 0.978 atm = 3x
PpN₂ = x
PpN₂ = PpH₂ / 3
PpN₂ = 0.978 / 3
PpN₂ = 0.326 atmHope this helps
Related Questions
Problem 1. What masses of 15% and 20% solutions are needed to prepare 200 g of 17% solution?
Problem 2. What masses of 18% and 5% solutions are needed to prepare 300 g of 7% solution?
Problem 3. 200 g of 15% and 350 g of 20% solutions were mixed. Calculate mass percentage of final solution.
Problem 4. 300 g of 15% solution and 35 g of solute were mixed. Calculate mass percentage of final solution.
Problem 5. 400 g of 25% solution and 150 g of water were mixed. Calculate mass percentage of final solution.
Answers
These are problems related to mixing different solutions to obtain a desired concentration.
According to the given data:Problem 1: 200 g of 17% solution, mix 100 g of 15% solution with 100 g of 20% solution.
Problem 2: 54 g of 18% solution and 246 g of 5% solution are needed.
Problem 3: The mass percentage of the final solution is (20015 + 35020) / (200 + 350) = 18.33%
Problem 4: The mass percentage of the final solution is (30015 + 35) / (300 + 35) = 13.23%
Problem 5: The mass percentage of the final solution is (40025) / (400 + 150) = 21.74%
What is mass?Mass is a fundamental physical property of matter and is defined as the amount of matter that an object contains. It is usually measured in units of grams (g) or kilograms (kg). Mass is related to but different from weight, which is the force exerted on an object by gravity. In chemistry, mass is often used to express the amount of a substance in a sample or reaction.
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7. If radiation collides with molecules in your body, the molecules lose electrons. When this happens, you produce charged particles called ions. If this happens in our body, the cells may die or they may undergo a change called a _____.
a. Isotope
b. Telomere
c. Mutation
d. Synapse
Answers
A solution consists of 35.00 g of CuSO4 dissolved in 250.0 mL of water. The molar mass of Cu is 63.55 g/mol the molar mass of S is 32.07 g/mol, and the molar mass of O is 16.00 g/mol. What is the molarity of the solution?
Answers
The molarity of a solution that contains 35.00 g of CuSO4 dissolved in 250.0 mL of water is 0.88M.
How to calculate molarity?The molarity of a solution can be calculated using the following formula:
Molarity = no of moles/volume
According to this question, a solution consists of 35.00 g of CuSO4 dissolved in 250.0 mL of water.
no.of moles of CuSO4 = 35g ÷ 159.6g/mol
no. of moles of CuSO4 = 0.22 moles
Therefore; molarity of CuSO4 solution is calculated as follows:
M = 0.22 ÷ 0.25
M = 0.88M
Therefore, the molarity of a solution that contains 35.00 g of CuSO4 dissolved in 250.0 mL of water is 0.88M.
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June 1
June 8
June 11
5. What phase of the moon most likely will appear 28 days after phase C?
A Waning Gibbous
June 15
B
Waning Crescent
с
Waxing Crescent
D
Waxing Gibbous
Answers
Answer:
D
Explanation:
it's D because it goes waxing crescent to waxing gibbous
During a class presentation, your classmate explains that plants perform photosynthesis and animals perform cellular respiration. In your own words, describe what these processes are and explain why your classmate’s statement is correct or incorrect.
Answers
My classmate's statement in incorrect because plants are also composed of cells.
All living things are composed of cells. A cell is the smallest unit of living organisms. Cells obtain energy via the process of cellular respiration. During cellular respiration, glucose is broken down to yield carbon dioxide and water.
In photosynthesis, carbon dioxide and water are combined to form glucose. The two processes are opposites of each other. Plants produce their own food via photosynthesis. Since plants are composed of cells, plant cells also undergo cellular respiration therefore my classmate's statement in incorrect.
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write anode and cathode in Zn-Ag galvanic cell
Answers
Explanation:
Zinc is the anode (solid zinc is oxidised). Silver is the cathode (silver ions are reduced).
By convention in standard cell notation, the anode is written on the left and the cathode is written on the right. So, in this cell: Zinc is the anode (solid zinc is oxidised). Silver is the cathode (silver ions are reduced).
What volume would 0.435 moles of hydrogen gas, Hz, occupy at STP?
Answers
Answer:
will be 9.7 Liters
Explanation:
What is the proper formula for vanadium (iv) percholrate?
Answers
Answer:VO(ClO4)3 i'm sure this is it
Explanation:
How are the oxygen atoms balanced for redox equations in basic solutions
Answers
Answer: H2O and OH^- are added to balance the oxygen atoms.
Explanation:
Please guys please answer this
Answers
Answer:
1. Because the rules will keep you safe it prevents you from getting hurt.
2.i) don't taste chemical
ii) Always wear protective gears
iii) be careful with tool
iv) wear protective gloves
Explanation:
help everyone get out quickly
What is the volume in liters occupied by 3.25 moles of an ideal gas at a temperature of 18.00? R= 0.08205 L.atm/K.mol P= 1.13 atm
Answers
Considering the ideal gas law, the volume occupied by 3.25 moles of an ideal gas at a temperature of 18.00°C is 686.71 L.
Definition of ideal gas lawAn ideal gas is the behavior of those gases whose molecules do not interact with each other and move randomly. Under normal conditions and under standard conditions, most gases exhibit ideal gas behavior.
An ideal gas is characterized by three state variables: absolute pressure (P), volume (V), and absolute temperature (T), related by a simple formula called the ideal gas law:
P×V = n×R×T
Where:
P is the gas pressure.V is the volume that occupies.T is its temperature.R is the ideal gas constant. The universal constant of ideal gases R has the same value for all gaseous substances. n is the number of moles of the gas. Volume in this caseIn this case, you know:
P= 1.13 atmV= ?T= 18 C= 291 K (being 0 C= 273 K)R= 0.8205 L.atm/K.moln= 3.25 molReplacing in the ideal gas law:
1.13 atm×V = 3.25 mol× 0.8205 L.atm/K.mol× 291 K
Solving:
V = (3.25 mol× 0.8205 L.atm/K.mol× 291 K)÷ 1.13 atm
V= 686.71 L
Finally, the volume is 686.71 L.
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Which statement BEST describes the energy transfer of organisms eating other organisms?
A. More energy is available after each transfer.
B. Less energy is available to higher consumer levels.
C. Energy transfer is greatest among primary consumers.
D. Energy transfer to secondary consumers is greater than to primary consumers.
Answers
Answer: D.................................................................................................................
Explanation:
Identify the Teutonic plate boundaries
Answers
Divergent, convergent, and transform plate boundaries are the three different types of plate tectonic boundaries.
What kinds of plate tectonic borders are there?Divergent, convergent, and transformal plate borders are where the majority of seismic activity takes place.Sometimes the plates get hooked when they pass each other, creating pressure. The ground trembles when energy is transmitted as seismic waves whenever the plates actually give way and slip as a result of the increased pressure.Divergent (Spreading):
This is the separation of two plates. Along the opening, molten rock as from mantle erupts, creating new crust. These zones, also known as spreading centers, are prone to minor earthquakes.Convergent (Colliding):
This happens when plates move in the same direction and meet. This thinner, denser, and also more elastic oceanic plate dips beneath the thicker, stronger rigid continental plate whenever a continental plate crosses an oceanic plate.Transformation:
The point where two tectonic plates collide is known as a transformation or lateral fault. One of the best instances of transverse plate motion is the San Andreas Fault.
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The correct question is-
What are the different types of plate tectonic boundaries?
what mass of glucose c6h12o6 would be required to prepare 5000 mL of a 0.215 M solution
Answers
Approximately 194.0 grams of glucose (C6H12O6) would be required to prepare a 5000 mL solution with a concentration of 0.215 M.
To determine the mass of glucose (C6H12O6) required to prepare a 0.215 M solution in 5000 mL, we need to use the formula:
Molarity (M) = moles of solute / volume of solution (in liters)
First, let's convert the volume of the solution from milliliters (mL) to liters (L):
5000 mL = 5000/1000 = 5 L
Now, we can rearrange the formula to solve for moles of solute:
moles of solute = Molarity (M) x volume of solution (L)
moles of solute = 0.215 M x 5 Lmoles of solute = 1.075 mol
Since glucose (C6H12O6) has a molar mass of approximately 180.16 g/mol, we can calculate the mass of glucose using the equation:
mass of solute = moles of solute x molar mass of solute
mass of glucose = 1.075 mol x 180.16 g/mol
mass of glucose = 194.0 g (rounded to three significant figures)
Therefore, approximately 194.0 grams of glucose (C6H12O6) would be required to prepare a 5000 mL solution with a concentration of 0.215 M. It's important to note that the molar mass of glucose used in this calculation may vary slightly depending on the level of precision required.
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F-Test is designed to indicate whether there is a significant difference between two methods based on their standard deviations. The following results were obtained during the Gravimetric and Volumetric determination of iron in sample A.
Gravimetric: 13.0, 13.5, 13.3, and 12.9.
Volumetric: 15.1, 13.3, 12.7, 12.6, and 13.1.
From the following two sets of replicate analyses on the same sample, determine whether the variance of gravimetric differs significantly from that of the volumetric method.
Answers
The variances of the gravimetric and volumetric approaches are not significantly different because the calculated F-value (0.233) is smaller than the crucial F-value (4.76).
We can use the F-test to see if the variance of the gravimetric approach differs noticeably from that of the volumetric method. The F-test assesses whether there is a significant difference between two data sets by comparing the ratio of their variances.
Let's first compute the variances for the two approaches. We have four replicate measurements for the gravimetric technique: 13.0, 13.5, 13.3, and 12.9. We compute the average of the squared deviations from the mean to determine the variance:
Gravimetric variance is calculated as follows: [(13.0 - 13.2)2 + (13.5 - 13.2)2 + (13.3 - 13.2)2 + (12.9 - 13.2)2] / 4 = 0.1175
We have the volumetric approach, which
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What is the mass (in grams) of 2.04 x 1024 methane (CH4) molecules?
Answers
The mass of the methane is 54.4 g.
How does mass and moles relate?Mass and moles are related through the concept of molar mass. The molar mass of a substance is the mass of one mole of the substance, which is numerically equal to its atomic or molecular weight.
The relationship between mass and moles can be expressed using the following equation:
number of moles (n) = mass (m) / molar mass (M)
We know that;
1 mole of the methane would contain 6.02 * 10^23 molecules
x moles would contain 2.04 x 10^ 24 molecules
x = 3.4 moles
Then we have the mass as;
= 3.4 moles * 16 g/mol
= 54.4 g
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All atoms of a specific element have the same number of
A. protons
B. neutrons
C. ions
D. electrons
Answers
Answer:
A (Protons)
Explanation:
For example, if the number is 1, then it has 1 proton. The proton always changes but the rest never do.
list three statements for transverse waves
Answers
•Transverse waves are a form of traveling energy
•Transverse waves have oscillations perpendicular to the direction of energy transfer
•Transverse waves have particles that move about their fixed position
Besides solubility, state two other physical properties that are different for salt and sand.
Answers
Answer:Electrical Conductivity,soluble
Explanation:
Salt is a non-magnetic solid and is soluble in water. Sand is a non-magnetic solid and is insoluble in water.
Electrical Conductivity: Salt is an electrolyte and conducts electricity when dissolved in water or in a molten state. This is because salt dissociates into ions (Na+ and Cl-) that can carry electric current. In contrast, sand is a covalent compound and does not conduct electricity, as it does not dissociate into ions in the same way as salt. Sand is considered an insulator in terms of electrical conductivity.
Heredity Lab Report Instructions:
In the Heredity lab, you investigated how hamsters inherit traits from their parents. Record your observations in the lab report below. You will submit your completed report.
Name and Title: Include your name, instructor's name, date, and name of lab.
Objective(s): In your own words, what was the purpose of this lab?
Hypothesis: In this section, please include the if/then statements you developed during your lab activity.
These statements reflect your predicted outcomes for the experiment.
Test One: If I breed a short fur, FF female with a short fur, Ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.
Test Two: If I breed a short fur, Ff female with a short fur, Ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.
Test Three: If I breed a long fur, ff female with a long fur, ff male, then I will expect to see (all short fur; some short and some long fur; all long fur) offspring.
Procedure: The procedures are listed in your virtual lab. You do not need to repeat them here.
Please be sure to identify the test variable (independent variable) and the outcome variable (dependent variable) for this investigation. Remember, the test variable is what is changing in this investigation.
The outcome variable is what you are measuring in this investigation.
Test variable (independent variable): Outcome variable (dependent variable): Data: Record the data from each trial in the data chart below. Be sure to fill in the chart completely. Test One Parent 1: FF Parent 2: Ff Phenotype ratio: ________ : ________ short fur : long fur Test Two Parent 1: Ff Parent 2: Ff Phenotype ratio: ________ : ________ short fur : long fur Test Three Parent 1: ff Parent 2: ff Phenotype ratio: ________ : ________ short fur : long fur Conclusion: Your conclusion will include a summary of the lab results and an interpretation of
Answers
For Test One, phenotype ratio is Short fur : Long fur = 2 : 0; For Test Two, the phenotype ratio is Short fur : Long fur = 3 : 1; For Test Three, the phenotype ratios will be Short fur : Long fur = 0 : 2
What are the phenotype ratios from the test crosses?For Test One:
Parent 1: FF (homozygous dominant for short fur)
Parent 2: Ff (heterozygous for short fur)
The Punnett square for this cross will give the following genotype ratios:
FF : Ff = 1 : 1
And the corresponding phenotype ratios will be:
Short fur : Long fur = 2 : 0 or 100% short fur
For Test Two:
Parent 1: Ff (heterozygous for short fur)
Parent 2: Ff (heterozygous for short fur)
The Punnett square for this cross will give the following genotype ratios:
FF : Ff : ff = 1 : 2 : 1
And the corresponding phenotype ratios will be:
Short fur : Long fur = 3 : 1 or 75% short fur and 25% long fur
For Test Three:
Parent 1: ff (homozygous recessive for long fur)
Parent 2: ff (homozygous recessive for long fur)
The Punnett square for this cross will give the following genotype ratios:
ff : ff = 1 : 0
And the corresponding phenotype ratios will be:
Short fur : Long fur = 0 : 2 or 100% long fur
For this investigation, the test variable is the breed of hamster and the outcome variable is the phenotype of the hamster.
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ASAP PLS
A 18.7 g piece of aluminum (which has a heat capacity of 0.89 JPC-g) is
heated to 82.4°C and dropped into a calorimeter containing water
(specific heat capacity of water is 4.18 J/gºC) initially at 22.3°C. The final
temperature of the water is 24.3°C. Ignoring significant figures, calculate
the mass of water in the calorimeter. *
Answers
Answer:
think I did this before and its V
A constant current of 1.30 amps is passed through an electrolytic cell containing OsO2. How many hours will it take to produce 45.0 grams of osmium metal from this process
Answers
Answer:
9.8 h
Explanation:
From the question,
Os²⁻ - 2e⁻ = Os
From the equation above,
2 F of electron is needed to liberate 1 mole of osmium.
45 g of osmium contains 45/190 mole of osmium = 0.237 mole.
2 F ⇒ 1 mole.
2(0.237) F ⇒ 0.237 mole
0.474 F. will produce 45 g of osmium.
If 1 F = 96500 C ,
Then, 0.474 F = 45741 C,
But,
Q = it
t = Q/i....................... Equation 1
Given: Q = 45741 C, i = 1.30 A
Substitute into equation 1
t = 45741/1.3
t = 9.8 h.
Geology
Please help!
Answers
The first image shows cleavage, same as the second. The third image shows fracture
What is shown in the images1. Image 1:
As it has clean surfaces and appears to have been sliced with a knife, it exhibits CLEAVAGE.Visible cleavage planes: 3There is not a 90-degree cleavage.Rhombohedral is the three-dimensional structure it symbolizes.2. Image 2
It exhibits CLEAVAGE.Visible cleavage planes: 1Since there is only one cleavage plane, cleavage angle is irrelevant.Sheet is the three-dimensional structure it symbolizes.Image 3:
It exhibits FRACTURE because it is fractured unevenly. In addition, the surfaces are not smooth.Inapplicable if there are obvious cleavage planesAngle of cleavage: inapplicableIt does not apply to the three-dimensional structure it portrays.Read more on rocks here:https://brainly.com/question/26046551
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samples of the gases carbon dioxide =44 and hydrogen =2 ar rhe same temperature,compare the speed of the molecules in these two gases
Answers
Answer:
The speed of molecules in a gas is directly proportional to the square root of the temperature and inversely proportional to the square root of the molar mass.
Since both gases are at the same temperature, we only need to compare their molar masses.
The molar mass of carbon dioxide (CO2) is 44 g/mol and the molar mass of hydrogen (H2) is 2 g/mol.
Therefore, the square root of the molar mass of hydrogen is smaller than the square root of the molar mass of carbon dioxide.
This means that the speed of hydrogen molecules is greater than the speed of carbon dioxide molecules at the same temperature.
True or False
An element is a substance made from the atoms of two or more different substances
Answers
Answer:
True
Explanation:
element are made up of two different of substances
Answer:
true
and element is made out of atoms matter is made of atoms make everything around what we see or what takes up space
Read the following sentence starters and descriptions. Identify each as: Claim, Evidence, or Reasoning
Answers
Reasoning includes one or more scientific principles in this context.
What is Reasoning?
This involves the thought about something in a sensible and logical manner due to one or more scientific principles being applied.
It is very important to the claim and evidence as it helps ascertain their validity in science.
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Define Valency in your own words
Answers
The combining capacity of an atom of the element by either sharing, gaining or loosing electrons is known as valency.
_______
RainbowSalt2222 ☔
What volume of CO2(g), measured at STP is produced if 15.2 grams of CaCO(s) is heated?
Answers
Answer:
Volume = 3.4 L
Explanation:
In order to calculate the volume of CO₂ produced when 15.2 g of CaCO₃ is heated, we need to first write out the balanced equation of the thermal decomposition of CaCO₃:
CaCO₃ (s) + [Heat] ⇒ CaO (s) + CO₂ (g)
Now, let's calculate the number of moles in 15.2 g CaCO₃:
mole no. = \(\mathrm{\frac{mass}{molar \ mass}}\)
= \(\frac{15.2}{40.1 + 12 + (16 \times 3)}\)
= 0.1518 moles
From the balanced equation above, we can see that the stoichiometric molar ratios of CaCO₃ and CO₂ are equal. Therefore, the number of moles of CO₂ produced is also 0.1518 moles.
Hence, from the formula for the number of moles of a gas, we can calculate the volume of CO₂:
mole no. = \(\mathrm{\frac{Volume \ in \ L}{22.4}}\)
⇒ \(0.1518 = \mathrm{\frac{Volume}{22.4}}\)
⇒ Volume = 0.1518 × 22.4
= 3.4 L
Therefore, if 15.2 g of CaCO₃ is heated, 3.4 L of CO₂ is produced at STP.
Convert 76.78 g of CO2 to a volume.
Answers
What changes sodium pellets to liquid
Answers
Answer:
when placed in water, a sodium pellet catches on fire as hydrogen gas is liberated and sodium hydroxide forms. chemical change = fire is a sign of chemical reaction.
Explanation:
When placed in water the sodium pellets catch the fire and liberate the hydrogen gas. On mixing with water solid sodium forms a colorless basic solution.
What are the properties of sodium?Sodium is a soft metal. It is a very reactive element with a low melting point. Sodium reacts very quickly with water, snow, and ice to produce sodium hydroxide and hydrogen. It is an alkali metal and the sixth most abundant metal on earth. It has a silvery white color.
It has a strong metallic luster. On reacting with oxygen it produces sodium oxide which on reacting with the water produces sodium hydroxide.
It is used to improve the structure of certain alloys and soaps. It is also used in the purification of metals. Sodium is also present in sodium chloride, an important compound found in the environment.
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