If 17.88 g of nitrogen trihydride reacts with 11.9 g of diatomic oxygen, how many molecules of water may be produced?
Answers
4 NH3 + 3 O2 → 2 N2 + 6 H2O
We can use the given masses of NH3 and O2 to determine which is the limiting reactant, and then use the stoichiometry of the balanced equation to find the number of molecules of water produced.
First, we need to convert the masses of NH3 and O2 to moles using their respective molar masses:
NH3: 17.88 g / 17.03 g/mol = 1.050 mol
O2: 11.9 g / 32.00 g/mol = 0.372 mol
Next, we can use the stoichiometry of the balanced equation to determine which reactant is limiting. The balanced equation tells us that 4 moles of NH3 react with 3 moles of O2 to produce 6 moles of H2O. Therefore, the ratio of NH3 to O2 needed for complete reaction is:
4 mol NH3 / 3 mol O2 = 1.33 mol NH3 / mol O2
Since the actual ratio of NH3 to O2 is:
1.050 mol NH3 / 0.372 mol O2 = 2.82 mol NH3 / mol O2
We can see that NH3 is present in excess, and O2 is the limiting reactant.
Using the mole ratio from the balanced equation, we can now calculate the number of moles of H2O produced from the given amount of O2:
0.372 mol O2 × (6 mol H2O / 3 mol O2) = 0.744 mol H2O
Finally, we can use Avogadro's number to convert the number of moles of H2O to molecules:
0.744 mol H2O × (6.022 × 10^23 molecules/mol) = 4.47 × 10^23 molecules of H2O
Therefore, the number of molecules of water that may be produced is approximately 4.47 × 10^23.
Related Questions
Describe an adaptation to a plant's life cycle and explain how this adaptation helps the plant survive.
Answers
alright, sum leaves have large air pockets inside that allow the plant to absorb oxygen from the water from rain or puddles
Answer:
Plant adaptations are modifications that enable a plant species thrive in its natural habitat. Underwater aquatic plants have enormous air pockets in their leaves that allow them to collect oxygen from the water. Aquatic plants' leaves are also incredibly delicate, allowing them to move with the waves.
If a marathon race is 26.2 miles, what is the distance in kilometers? (Given: 1 mile = 1.61 kilometer)
Answers
The distance of a marathon race in kilometers is 42.1642.
To convert miles to kilometers, we need to multiply the distance by the conversion factor of 1.61. So, for a marathon race of 26.2 miles, we can multiply 26.2 by 1.61 to get the distance in kilometers.
26.2 miles x 1.61 kilometers/mile = 42.1642 kilometers
This conversion factor is important when dealing with international races or when communicating with people from different countries. While the United States commonly uses miles for measuring distance, many other countries use kilometers. It is important to be familiar with both systems of measurement and know how to convert between them. This can prevent misunderstandings and ensure accurate communication and planning.
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a solution contains 25.0 grams of caffeine, c8h10n4)2, in a total soltuion volume of .450 l. what is the concentration of caffeine in the solution
Answers
The concentration of caffeine in the solution is 55.55 mm. To calculate this, we need to use the formula for molarity: molarity = (moles of solute) / (liters of solution). In this case, we have 25.0 grams of caffeine (C8H10N4O2), which is equal to 0.015 moles (using the molar mass of caffeine). We also have a total solution volume of 0.450 liters. Plugging this into the equation above gives us molarity = (0.015 moles of solute) / (0.450 liters of solution), which simplifies to 55.55 mm.
In terms of explanation, molarity is a unit of concentration that measures the number of moles of a given solute present in one liter of solution. The equation for molarity is simple and straightforward: molarity = (moles of solute) / (liters of solution). In order to calculate the molarity of the given solution, we first need to calculate the number of moles of caffeine in the solution, which is done by multiplying the mass of caffeine (25.0 grams) by the molar mass of caffeine (194.19 g/mol).
Then, we plug this number and the volume of the solution (0.450 liters) into the molarity equation to get the concentration of caffeine in the solution.
Overall, the concentration of caffeine in the solution is 55.55 mm.
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Zn + 2HCI ZnCl2 + H2
How many moles of hydrogen are produced from the reaction of 3.0 moles
of zinc?
Answers
Answer:
3 moles H₂
Explanation:
The reaction equation Zn + 2HCl => ZnCl₂ + H₂ shows a 1:1 mole ratio between Zn and molecular hydrogen (H₁). Therefore, the moles of Zn consumed in the reaction is then equal to the moles of H₂ produced. In this case using 3 moles Zn => 3 moles H₂ will be produced.
Answer:
3 moles
Explanation:
Use the ratio
Yeah, I agree with the other person
On the locating the epicenter exploration what city was near the epicenter?
A)Rio de Janeiro
B) Buenos Aires
C)Valparaiso
D)Lima
13 POINTS!! Helpp
Answers
Which substances are contained in saliva and tears to break down pathogens?
enzymes
acids
oils
sweat
Answers
Answer:
A. Enzymes
Explanation:
Enzymes are in our saliva and tears. They help break down pathogens and the cell wall of bacteria.
I hope it helps! Have a great day!
Muffin~
Answer:
A. Enzymes.
Explanation:
Enzymes break down things and they are in both our saliva and tears.
I hope it helps! Have a great day!
.-.
How does a balanced chemical equation demonstrate the Law of Conservation of Mass? (1 point)
O it shows that only physical changes follow the Law of Conservation of Mass
O it shows that no atoms have been gained or lost during the reaction
O it shows that the properties of the elements stay the same after the reaction
O it shows that all compounds remain bonded after the reaction
Answers
Explanation:
A balanced equation demonstrates the conservation of mass by having the same number of each type of atom on both sides of the arrow. enjoy
Answer:
It show that no atoms have been gained or lost during reaction
Explanation:
What is the name of N2C14? Explain how you determined the bond type and the steps you used to determine the naming convention for the compound.
Answers
Answer:
One way to predict the type of bond that forms between two elements is to compare the electronegativities of the elements. In general, large differences in electronegativity result in ionic bonds, while smaller differences result in covalent bonds. the bonding is covalent bcz its between the most electronegative atom nitrogen and carbon .
Since the electronegativity difference between nitrogen and chlorine is not very much so chemical bonding is the only bond between them Thus the name of N2C14 is Dinitrogen Tetrachloride and there is covalent bonding in this compound
What is chemical bonding?There are two types of bonding in chemistry, one is ionic bonding while other is covalent bonding. Ionic bonding is due to the complete transfer of electron from one element to other. While the covalent bond is due to the equal sharing of electron by each element
Metals and non metals combine to form ionic bond while the element with the same electronegativity form covalent bonding.
To name this we have to see the number of element and accordingly use di, tri and the write the name of first element and then second element's name with ide
Thus the name of N2C14 is Dinitrogen Tetrachloride and there is covalent bonding in this compound
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1. What is the purpose of communicating scientific information?
2. What is the purpose of writing lab reports for experiments and
activities in this book?
3. How are data plotted on a line graph?
4. What is a scientific model?
5. Contrast scientific theories and laws.
Answers
Answer:
to report on what you did, what you learned from an experiment and why the findings matter.
Explanation:
Describe the relationship between wavelength, frequency, and energy in electromagnetic waves. Which waves are the most dangerous?
Answers
Answer:
Explanation:
relation between energy wavelength and frequency.....
we know that energy of photon is
E=hf but
v=fλ
f=v/λ when v=c(speed of light) then f=c/λ
putting the value of f in the equation of photon
E=hc/λ this equation gave a relation between wavelength frequency and energy in electromagnetic waves
among electromagnetic waves UV rays are most dangerous because exposure to these radiation cause serious problems in living organism
Among electromagnetic waves, UV rays are most dangerous because exposure to these radiation cause serious problems in living organism. The relation that we use in case of electromagnetic wave is E=hc/λ
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
Thus the relation that we use to find the energy of electromangetic wave is E=hc/λ
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Is hydrogen formed as a product?
Answers
Answer:
Hydrogen may be used in fuel cells for local electricity generation or potentially as a transportation fuel. Hydrogen is produced as a by-product of industrial chlorine production by electrolysis.
What should a prepositional phrase include after the preposition?
A.a noun and its modifiers
B.an adjective and an adverb
C.a subject and a predicate
D.an object and its modifiers
Answers
Answer:
B
Explanation:
A prepositional phrase should include after the preposition an object and its modifiers. The correct option is D.
What are prepositional phrases?A prepositional phrase is a group of words that contain a preposition with its object and the words that modify it. These are the words that change verbs and nouns.
For example, Mansi is going out with handsome Brian. Brian is the object and the beautiful is the prepositional phrase. The three types of prepositional phrases are:
Adverb prepositional phrases.Adjective prepositional phrases.Prepositional phrases, behave as nouns.If there are two prepositional phrases used in one sentence. The other prepositional phrase will be used as an adverb.
Thus, the correct option is D. an object and its modifiers.
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What is the difference between heterochromatin and euchromatin.
Answers
Answer:
The main difference between the two is euchromatin is genetically active while heterochromatin is genetically inactive
Answer:
Heterochromatin is the part of the chromosome without DNA coding genes and Euchromatin is the part of the chromosome with coding genes.
Explanation:
Euchormatin is the part of the chromosome which is rich with gene concentration and participates in the transition process. Heterochromatin is th area with a darkly stained DNA specific strand and is a condensed state.
Find the chemical formula for aluminum oxide based on ionic
bonding from valence electrons
Answers
The chemical formula for aluminum oxide based on ionic bonding from valence electrons is Al₂O₃.
The chemical formula of a compound is a symbolic representation of its chemical composition.
Chemical formulae gives information about the elements that constitute the molecules of a compound and also about the ratio in which the atoms of these elements combine to form such molecules.
In this compound, aluminum (Al) donates three electrons to oxygen (O), resulting in the formation of Al³⁺ cations and O²⁻ anions. The ionic bond is formed between these oppositely charged ions, resulting in the formula Al₂O₃.
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Hello there :3 Please anwser this Combined gas law problem for me . By the way just anwser #4 for me that’s all . I uploaded the formulas on my other question if you need to use it . Please help me I don’t understand this please be an expert I will mark brianliest don’t scam me and SHOW ALL THE WORK! I just don’t understand *.* . Will report any links !
Answers
Answer:
136L
Explanation:
p1v1=p2v2
114 x44.0=37.0x V2
V2=136L
Calculate the mass of CuO which can react with 39,2 grams of orthophosphate acid.Please Help!!3CuO+ 2H3PO4 = Cu3(PO4)2 + 3H20
Answers
Answer
47.73 g CuO
Explanation
Given:
Chemical equation: 3CuO+ 2H3PO4 = Cu3(PO4)2 + 3H20
mass of orthophosphate acid (Cu3(PO4)2) = 39.2 g
Required: The mass of CuO
Solution:
\(\begin{gathered} 39.2g\text{ H}_3PO_4\text{ x }\frac{1\text{ mol H}_3PO_4}{97,994g\text{ H}_3PO_4}\text{ x }\frac{3\text{ moles CuO}}{2\text{ moles H}_3PO_4}\text{ x }\frac{79,545g\text{ CuO}}{1mole\text{ CuO}} \\ \\ =\text{ 47.73 g CuO} \end{gathered}\)Second method:
Step 1: Find the moles of H3PO4
n = m/M where m is the mass and M is the molar mass of H3PO4
n = 39.2g/97.994g.mol^-1
n = 0.400 mol
Step 2: Use the stoichiometry to find the moles of CuO
The molar ratio between CuO and H3PO4 is 3:2
Therefore the moles of CuO = 0.400 mol x (3/2) = 0.600 mol
Step 3: Find the mass of CuO, now that we have moles
m = n x M m is the mass, n is the moles and M is the molar mass
m = 0.600 mol x 79,545 g/mol
m = 47.73 g
At what volume of added NaOH solution would you expect to see an end point Answer in units of mL (full question is in photo :) )
Answers
endpointVinegar is also called as acetic acid, and we can write it in the following way CH3COOH. When we talk about titration, it refers to the amount of base needed to neutralize the acid. So there is a chemical reaction involved. The reaction between vinegar and NaOH base is as follows:
\(CH_3CO_{}OH+Na_{}OH\rightarrow CH_3CO_{}O_{}Na+H_2O\)We have a 1 to 1 ratio, i.e. to neutralize x moles of vinegar we need the same moles of NaOH. Let's calculate how many moles of acid are believed to be in the solution. We will use the molarity = 0.78M = 0.78 mol/L.
\(\begin{gathered} \text{Moles of vinegar = Volume}\times Molarity \\ \text{Moles of vinegar = }0.02061L\times0.78\frac{mol}{L} \\ \text{Moles of vinegar = }0.016\text{mol} \end{gathered}\)Then we need 0.016 moles of NaOH, the volume required will be:
\(\begin{gathered} \text{Volume of NAOH=0.016 mol}\times\frac{1L}{0.933\text{mol}}\times\frac{1000mL}{1L} \\ \text{Volume of NAOH=}17.23mL \end{gathered}\)So, the volume that would be needed of NaOH to see an end point is 17.23 mL
a beer's law plot was generated and the trendline had a slope of 137.2 l/mol. the absorbance of the unknown phosphate sample was 0.285. what is the phosphate concentration of the unknown sample?
Answers
The phosphate concentration of the unknown sample is 0.002 M
Beer's law, the quantity of power absorbed or transmitted by using a solution is proportional to the solution's molar absorptivity and the awareness of the solute. In easy terms, a greater focused answer absorbs greater light than a more dilute solution does.
C = εa/b
= 0.285 / 137.2
= 0.002 M
A sequence of fashionable solutions containing a purple dye was made by diluting an inventory answer and then measuring the percent transmittance of every answer at 505 nm (greenish blue). This wavelength became decided on with the aid of examining its absorption spectrum.
Lambert's law of absorption states that equal elements inside the equal absorbing medium soak up identical fractions of the mild that enters them. If in traversing a path of duration dx the intensity is decreased.
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if the volume of the system is reduced to one half of its original volume and the system is allowed to restablish equilibrium at 298k, what will be the pressure in atm, of the water vapor at the new volume
Answers
According to ideal gas law ;
PV = nRT where, P refers to the pressure of the ideal gas, V is the volume of the ideal gas, n is the total amount of ideal gas that is measured in terms of moles, R is the universal gas constant, and T is the temperature.
If Volume of system is reduced to half = V/2
then; P = 2(nRT/V), Pressure will be doubled to reestablish the equilibrium.
What is Chemical equilibrium?
Chemical equilibrium, condition in the course of a reversible chemical reaction in which no net change in the amounts of reactants and products occurs. A reversible chemical reaction is one in which the products, as soon as they are formed, react to produce the original reactants.
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Using a Punnett square, what genotypes would you expect in the F2 offspring?
F1 generation
F2 (option A)
F2 (option B)
Father
Father
Father
A
A
A
A
A
a
Mother
Mother
Mother
a
Аа
«Аа
a
Аа
Аа
А
AA
Аа
a
Аа
Аа
a
Аа
Aai
aa
a
А
Answers
Answer:
can you answer mine i will help you! please
Explanation:
look at the periodic table. each horizontal row shows a... what is the missing word?
Answers
Answer:
Groups
Explanation:
groups are located horizontally
are most of the elements on the periodic table classified as a metal or a non-metal?
Answers
Answer:
Metals
Explanation:
There are more metals next time trying checking the table they will be in colored squares to count to see which has more! HOPE THIS HELPED!
<3 :D
Atomoxetine: A review of its use in attention-deficit hyperactivity disorder in children and adolescents
Answers
Atomoxetine is a medication commonly used to treat attention-deficit hyperactivity disorder (ADHD) in children and adolescents.
It is a selective norepinephrine reuptake inhibitor that helps improve attention and reduce hyperactivity.
Here is a brief review of its use:
1. Atomoxetine is approved for the treatment of ADHD in children and adolescents aged 6 years and older. It is usually prescribed as part of a comprehensive treatment plan that includes behavioral therapy and educational interventions.
2. The medication works by increasing the levels of norepinephrine, a neurotransmitter in the brain, which helps regulate attention and impulse control.
3. Atomoxetine is available in capsule form and is usually taken once or twice a day. The dosage is determined by the healthcare provider based on the individual's weight and response to the medication.
4. It is important to note that Atomoxetine may take several weeks to show its full effect. Regular follow-up appointments with the healthcare provider are necessary to monitor the response to treatment and make any necessary adjustments.
5. Common side effects of Atomoxetine include decreased appetite, nausea, vomiting, and stomach pain. It may also cause increased heart rate and blood pressure, so monitoring of vital signs is important during treatment.
6. Atomoxetine should not be used in individuals with narrow-angle glaucoma, severe heart problems, or a history of pheochromocytoma. It may also interact with certain medications, so it is essential to inform the healthcare provider about all current medications and medical conditions.
7. As with any medication, there are potential risks and benefits. The decision to use Atomoxetine should be made in collaboration with a healthcare provider, considering the individual's specific needs and circumstances.
In summary, Atomoxetine is a medication commonly used in the treatment of ADHD in children and adolescents. It works by increasing norepinephrine levels in the brain to improve attention and reduce hyperactivity.
Regular monitoring and communication with a healthcare provider are important during treatment.
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can you help please??
Answers
Answer:
no
Explanation:
Answer:
The answer is B
presented with two tubes: one tube with a buffered solution + acid and one tube with water + acid, how will you know which tube has the buffer and which tube does not have the buffer?
Answers
One tube has a buffered solution + acid and the other tube has water + acid. To decide whether or not the solution is buffered, a simple pH test can be done. An acid-base indicator can be used to determine the pH of each solution.
A buffered solution is defined as a solution that can withstand minor changes in pH upon the addition of small amounts of an acid or base.
Consider the following steps:
To both tubes, add a small amount of acid-base indicator. Determine the pH of each solution by observing the color change of the acid-base indicator when it is added to it. The pH of the solution is determined by the color of the acid-base indicator after it has been added to it. Compare the pH of the two solutions. The solution with the lower pH is likely to have a buffer, whereas the solution with the higher pH is unlikely to have a buffer. This is due to the fact that the addition of an acid to a buffered solution would result in a lower pH, whereas the addition of an acid to an unbuffered solution would result in a higher pH. To find out which tube has the buffer and which does not, one has to compare the pH of each solution.Learn more about buffer: https://brainly.com/question/9458699
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Which chemicals generate the following colors in the fireworks? Red Blue Green Yellow Purple Orange Silver
Answers
copper makes blue
barium glows green
sodium yellow
calcium salt orange
incandesence of iron (with carbon), chacoal,
or lamplack gold
magnesium, aluminum and titanium were
found to give off white sparkles, silver
Hopes this help you.
a raindrop has a volume of approximately 0.09 ml. how many raindrops will it take to fill a glass jar that will hold half a liter of liquid?
Answers
5555.5 raindrops will it take to fill a glass jar that will hold half a litre of liquid.
What is volume?The amount of space occupied by a three-dimensional figure as measured in cubic units.
Half litre of liquid is equal to 500mL.
Given that a raindrop has a volume of approximately 0.09 ml.
So, the number of drops in a jar = \(\frac{500mL}{0.09 ml}\) = 5555.5 drops.
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10) How many moles of water are made from complete reaction of 1.4 moles of hydrogen gas?
Given the reaction: 2H2 + O2 → 2H2O
A) 2.8
B) 0.7
C) 1.4
D) 2.1
E) not enough information
Answers
So, 1.4 moles of hydrogen gas will produce 1.4 moles of water. The correct answer is C) 1.4.
How to determine the moles of reactant?To determine how many moles of water are made from the complete reaction of 1.4 moles of hydrogen gas, we can use the balanced chemical equation given: 2H2 + O2 → 2H2O.
Step 1: Identify the mole ratio between hydrogen gas and water from the balanced equation. This ratio is 2H2:2H2O or 1:1 (by dividing both sides by 2).
Step 2: Use the mole ratio to find the moles of water produced. Since the ratio is 1:1, the number of moles of water produced will be equal to the number of moles of hydrogen gas reacted.
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An ideal gas is contained in a 2. 5l container at a pressure of 4. 0atm. The container is at a temperature of 25 °C. What will be the final pressure if the temperature is increased to 50 °C
Answers
The final pressure of the ideal gas that contained in a 2. 5 L container at a pressure of 4.0 atm = 4.33 atm.
To determine the final pressure of the ideal gas can be calculated using the Ideal Gas Law, which states that:
PV = nRT
Where:
P is the pressure
V is the volume (L)
n is the amount of gas in moles
R is the universal gas constant, and
T is the temperature in Kelvin.
The formula can be rearranged to solve for the final pressure (P₂):
P₁V₁/T₁ = P₂V₂/T₂
Since the volume and the amount of gas are constant, the equation can be simplified to:
P₁/T₁ = P₂/T₂
Hence,
P₂ = (P₁/T₁) × T₂
P₂ = (4.0 atm / 298.15 K) × 323.15 K
P₂ = 4.33 atm
Therefore, the final pressure of the ideal gas is 4.33 atm.
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What does it mean for an element to be oxidized?
A. The element is a spectator ion in a chemical reaction.
B. The element has gained one or more electrons in a reaction.
C. The element has lost one or more electrons in a reaction.
D. The element has bonded to another element with opposite charge
Answers
Answer:
B
Explanation:
Oxidation occurs when an atom molecule or ion loses one or more electrons in a chemical reaction when oxidation occurs the oxidation state of the chemical species increases oxidation doesn't necessarily involve oxygen originally the term was used when oxygen caused electron loss in a reaction hope this helped. :)
An element is oxidized when It has loses one or more electrons in a chemical reaction. Therefore, Option (C) is correct.
What is Oxidation ?The loss of electrons, gain of oxygen or loss of hydrogen will be considered as Oxidation.
The gain of electrons, loss of oxygen or gain or hydrogen will be considered as the Reduction.
Rusting is one of the popular example of oxidation.
Therefore, An element is said to be oxidized when It has lost one or more electrons in a reaction.
Hence , Option (C) is correct.
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