In the electrolysis of water, how long will it take to produce 115.0 L of H2 at 1.0 atm and 273 K using an electrolytic cell through which the current is 121.0 mA

Answers

Answer 1

It will take 2273 h.

Here, the ideal gas equation is used.

What is the ideal gas law?

According to the ideal gas law, a gas's pressure is directly proportional to its volume and temperature.

[tex]PV = nRT\\[/tex]

where,

P = Pressure

V = Volume

n = No. of moles

R = Ideal gas constant

T = Temperature

Given,

V = 115.0 L

P = 1 atm

T = 273 K

I = 121 mA

R = 0.0821 atm. L/mol.K

Put the values in the above formula

[tex]n = \frac{PV}{RT}[/tex]                            

  [tex]= \frac{1(115)}{(0.0821) (273)}[/tex]

  [tex]= 5.13 mol[/tex]

The equation says,

2H⁺ + 2e⁻ → H₂

no. of electrons = 2

1 mol of the electron produces a 96500 C charge

5.13 mol of electrons will give = 5.13 × 2 × 96500

                                                  = 990,090 C

I = 121 mA = 0.121 C/s    (1mA = 0.001 C/s)

We know,

q = It

where,

q = charge

I = current

t = time

t = q/I

t = 990,090/ 0.121

t = 8182562 s

t = 2273 h

Therefore, it will take 2273 h.

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Related Questions

Can someone help me understand interphase, prophase, metaphase, anaphase, and telophase

Answers

Answer:

They are all stages of mitosis, which is cell division (for new cells for repair and growth)

interphase- the longest stage of the process. The DNA in the chromosomes copies itself, ready to split for mitosis. ALL 23 pairs copies itself so now there is 46 pairs of chromosomes (23 for each new cell).

prophase- The DNA in the chromosomes are more visible now, and the membrane around the nucleus disappears ready for the next stage

metaphase- Chromosomes and their copies line up in the middle of the cell, so that they could be pulled apart in the next stage

anaphase- Spindle fibres attach themselves to either end of the chromosome. They are then pulled apart to either ends of the cell. 23 on one side, 23 on another.

telophase- membranes form around the 23 pairs of chromosomes at their end of the cell. Two new daughter cells are produced. The cell membrane pinches in and divides the cells in two.

Explanation:

Hope this helps!

contact me if you still need more help!

How do you think the organisms interact with each other?

Answers

Life form that should eat or burn-through different creatures to get energy and supplements. Investigation of how living creatures connect with one another and with their current circumstance. The entirety of the living things and non-living things cooperating in a similar region. Natural or ecological territory where a specific animal categories reside.

Answer:

There are four main types of species interactions that occur between organisms in an ecosystem: Predation, parasitism and herbivory - In these interactions, one organism benefits while the other is negatively affected. * Competition - Both organisms are negatively affected in some way due to their interactions. Individual organisms live together in an ecosystem and depend on one another. Some organisms can make their own food, and other organisms have to get their food by eating other organisms. An organism that must obtain their nutrients by eating (consuming) other organisms is called a consumer, or a heterotroph.

I hoped this helped you out some~ <3

-Dream

is ecosystem generally stable; how is that possible?

Answers

Answer:

Citation: Cleland, E. E. (2011) Biodiversity and Ecosystem Stability. ... traits, and species that share similar suites of traits are often categorized together into ... Biologically diverse communities are also more likely to contain species that confer

Explanation:

Why do cells need to transport molecules?

Answers

Answer:

its the cell membrane  

Explanation:

heres gogle support but i also did this in class

What type of materials need to be transported out of the cell?

Water, carbon dioxide, and oxygen are among the few simple molecules that can cross the cell membrane by diffusion (or a type of diffusion known as osmosis ). Diffusion is one principle method of movement of substances within cells, as well as the method for essential small molecules to cross the cell membrane.

Answer:

porque le permite expulsar de su interior los desechos del metabolismo, también el movimiento de sustancias que sintetiza como hormonas.

Explanation:

Are the members of the third generation still carriers/affected by the trait? How many
percent are affected by the trait?​

Answers

Answer:

When a genetic disorder is diagnosed in a family, family members often want to know the likelihood that they or their children will develop the condition. This can be difficult to predict in some cases because many factors influence a person's chances of developing a genetic condition. One important factor is how the condition is inherited. For example:

Autosomal dominant inheritance: A person affected by an autosomal dominant disorder has a 50 percent chance of passing the mutated gene to each child. The chance that a child will not inherit the mutated gene is also 50 percent. However, in some cases an autosomal dominant disorder results from a new (de novo) mutation that occurs during the formation of egg or sperm cells or early in embryonic development. In these cases, the child's parents are unaffected, but the child may pass on the condition to his or her own children.

Why do you think it's important for scientists to study plate tectonics? Explain.

Answers

Scientists are helping to improve understanding of how rocks in Earth's hot, deep interior enable the motions of tectonic plates, which regulate the water cycle that is critical for a habitable planet.

Studying plate tectonics is important because it helps explain Earth's surface features, predict natural disasters, investigate Earth's history, explore natural resources, and understand global climate patterns. It is a multidisciplinary field that provides valuable insights into the dynamic nature of our planet.

Scientists study plate tectonics for several important reasons. Firstly, understanding plate tectonics helps scientists explain the formation of different features on Earth's surface, such as mountains, valleys, and ocean basins. By studying the movement and interactions of Earth's tectonic plates, scientists can better understand the processes that shape our planet.

Secondly, studying plate tectonics is crucial for predicting and understanding natural disasters. Earthquakes, volcanic eruptions, and tsunamis are all related to tectonic activity. By analyzing plate boundaries and identifying areas prone to seismic activity, scientists can provide early warnings and help communities prepare for potential disasters.

Furthermore, studying plate tectonics is essential for investigating Earth's history. The movement of tectonic plates over millions of years has shaped the continents and influenced the evolution of life on our planet. By examining the distribution of fossils and rock formations, scientists can reconstruct past tectonic events and gain insights into Earth's geological history.

Additionally, understanding plate tectonics is crucial for exploring natural resources. Many valuable minerals and energy resources are formed as a result of tectonic processes. By studying plate boundaries and their associated geological features, scientists can identify potential locations for mining and resource extraction.

Lastly, studying plate tectonics contributes to our understanding of global climate patterns. The movement of tectonic plates affects ocean currents, weather patterns, and the distribution of landmasses. By analyzing these interactions, scientists can better predict and understand climate change.

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List the four steps of mitosis in order. Describe what is happening during each phase.

Answers

Answer:

The four stages of mitosis are known as prophase, metaphase, anaphase, telophase. Additionally, we'll mention three other intermediary stages (interphase, prometaphase, and cytokinesis) that play a role in mitosis. During the four phases of mitosis, nuclear division occurs in order for one cell to split into two.

Explanation:

Which diagram shows photosynthesis with the correct reactants and products?

answer:
B

explain:
i did the test:))

Answers

Answer:c

Explanation:

Each of the following is a density-dependent limiting factor EXCEPT:

- crowding
- predation
- competition
- disease

Answers

Answer:

predation

Explanation:

predation

I hop this answer is correct

Answer:

Disease

Explanation:

All of the following are types of somatoform disorders except __________.
A.
conversion disorder
B.
obsessive-compulsive disorder
C.
somatization disorder
D.
hypochondrias

Answers

Answer:

B.

obsessive-compulsive disorder

Explanation:

The types of somatoform disorders does not include the obsessive-compulsive disorder.

What is somatoform disorders?

Somatic symptom disorder (SSD should be called as the somatization disorder or somatoform disorder. It is the form of mental illness that leads into one or more symptoms such as pain.

Therefore, it include the conversion disorder, somatization disorder, hypochondrias

Hence, the option b is correct.

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The special job an organism plays in it's ecosystem is it's __________.

biome

population

niche

biodiversity

Answers

The answer would be niche.

Answer:

niche

Explanation:

mostly out of deductive reasoning as to how each word fits into the sentence while still having the sentence make sense, but also, a "niche" in whatever use you're applying it toward is literally defined as a specialty.

what is the difference between the calorie (lowercase c) and the Calorie (capital C)

Answers

calorie (with a lowercase “c”) is the energy needed to increase the temperature of water by one degree Celsius.

Calorie (uppercase “c”) is the equivalent to a kilocalorie (or 1000 calories)

__________ is the principle of dealing with environmental problems without discriminating against people based upon socioeconomic status, race, or ethnicity.
A)
Industrial ecology
B)
Sustainable development
C)
Materials management
D)
Environmental justice
E)
Monitoring

Answers

Answer: The correct option is D.

Environmental justice

Explanation:

This is because environmental justice is the unbiased treatment of people or non discrimination of people of different color, race, ethinc group, status, income with respect to the development of the environment by implementing different environmental laws, polices, regulations e.t.c for the safety of all.

How are the functions of the endoplasmic reticulum and the Golgi apparatus related? A. Golgi apparatus receives proteins and other materials from the endoplasmic reticulum, packages them, and distributes them to vacuoles. B. The nucleus directs the cell's activity, including any transfer of material between the endoplasmic reticulum and the Golgi apparatus. C. Proteins and other substances made in the endoplasmic reticulum are stored, packaged, and distributed by the Golgi apparatus. D. In order to function, both plant and animal cells require an endoplasmic reticulum and Golgi apparatus.

Answers

Answer:

Proteins and other substances made in the endoplasmic reticulum are stored, packaged, and distributed by the Golgi apparatus

If water is polar, state a liquid that you think is nonpolar, and justify your answer

Answers

A gas. This is because none polar solvents contain binds between atoms with similar electronegativities, some examples are carbon and hydrogen

What brain region is responsible for coordinating and refining movement?
The diencephalon
The cerebrum
The brain stem
The cerebellum

Answers

Answer:

The cerebellum

Explanation:

Answer:

I hope this helps.

Explanation:

Describe the type of plate movement that is occurring where subduction zone volcanoes are found.

Answers

Answer:

Convergent boundary

Explanation:

It's when the plates move together and subduction occurs when one plate moves underneath another on a convergent boundary. Volcanoes are found there.

P.S. Brainliest, please?

Which explanation best identifies the relationship between mitosis and
reproduction? *

A.Mitosis is a form of sexual reproduction because the daughter cells form from one
single parent cell.
B.Mitosis is a form of sexual reproduction because the daughter cells are genetically
different from the parent cell.
C.Mitosis is a form of asexual reproduction because the daughter cells form a new
nuclear membrane after reproduction.
D.Mitosis is a form of asexual reproduction because the daughter cells are genetically
identical to the parent cell.

Answers

Answer:

D.

Explanation:

Mitosis three main functions are growth and repair of cells, and asexual reproduction for the single celled organisms.

The daughter cells have same chromosomes/genetics.  

Example:  repair and growth of skin, red blood cells etc.

Answer:

It's D

Explanation:

7. In a heterozygous person, which allele will actually be expressed (seen) in the phenotype? O dominant O recessive O both​

Answers

Answer:

both... I think... Is there more context?

Explanation:

Hope this helped! Good luck! :)

How can homologous structures be used as evidence for shared common ancestry?

Answers

Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. They all have the same basic pattern of bones. They inherited this pattern from a common ancestor. However, their forelimbs now have different functions

What is the major thing happening to a cell during G1?

Answers

Answer:

During this stage new organelles are being synthesized (made), so the cell requires both structural proteins and enzymes, resulting in great amount of protein synthesis. Color the G1 phase green on the cell cycle drawing.

Explanation:

During this stage new organelles are being synthesized (made), so the cell requires both structural proteins and enzymes, resulting in great amount of protein synthesis. Color the G1 phase green on the cell cycle drawing

PLZ HELP!! Which expels solid waste from the body? A. Liver. B. Large intestine. C. Pancreas. D. Anus

Answers

Answer:

anus LKEJKEGWHRJK

Explanation:

Answer:

I think it is D) Anus

Explanation:

Solid waste leaves the body through the anus

Hope that helps

HELPPPPP ASAPPPPP!!!!!!

Answers

Hiii it’s B I know this cuz I took astronomy

Determine the type of air mass that typically plays a role in the weather in your area. Describe the
type of weather that commonly is associated with the air mass and where the air mass originates. Describe the seasons in your area which result from that air mass.

Answers

Answer:

There are four categories for air masses: arctic, tropical, polar and equatorial. Arctic air masses form in the Arctic region and are very cold.

Welp: That moment I knew I didn't pay attention when I should have

Answers

Answer:

a series circuit has a 2 Ω (ohm) resistor, a 5 Ω resistor, and a 7 Ω resistor. The total resistance of the circuit is 2 + 5 + 7 = 14 Ω.

Explanation:

Not very good for you

Answer:

lol

Explanation:

Yeah you need to start paying attention in class

how are organisms impacted by the changing landscape

Answers

Any change in the climate of an area can affect the plants and animals living there as well the makeup of the entire ecosystem

Answer:

Animals can be impacted in a variety of ways, one example being that humans continue to expand their territory they are taking homes and resources to organisms that inhabit that land, this can lead to population decreases as the organism will be forced into a new environment that they are not adapted to.

What type of protein is missing in the blue people of KY?​

Answers

Answer:

four-part protein

Explanation:

The blue people of Troublesome Creek had methemoglobinemia, a metabolic condition affecting hemoglobin, the four-part protein that carries oxygen bound to an iron atom at each subunit's core.

Hope this helps:)

Answer:

The blue people of Troublesome Creek had methemoglobinemia, a metabolic condition affecting hemoglobin, the four-part protein that carries oxygen bound to an iron atom at each subunit's core.

Explanation:

PLEASE MARK ME AS BRAINLIEST

how are indicator species used to assess pollution levels in the environment?

Answers

Answer:

By monitoring changes in the population of a specific indicator species, scientists may draw conclusions about changes in a specific pollutant's levels. In addition, this method of pollution measurement demonstrates the impact of pollution on vulnerable species.

Explanation:

The developement of fruit without pollination, resulting in seedless fruit is called __________.
A)
genetic engineering
B)
parthenocarpy
C)
biomagnification
D)
epiphysis
E)
browsing

Answers

Answer:

B) parthenocarpy

Explanation:

Parthenocarpy is the development of fruit without fertilization of seeds. Another biological mechanism stenospermacarpy also produces seedless fruits, but here the seeds are aborted while they are still small. Some plants require pollination or stimulation for parthenocarpy.

:)

The answer to this question is b

would you expect a plant to produce more oxygen on a cloudy day or a sunny day? explain

Answers

Answer:

You would expect a plant to produce more oxygen on a sunny day because there are more sun rays available to plants so photosynthesis is easier to maintain, as well as oxygen production.

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the volume formula for a cylinder is v=nr^h. isolate for the variable r in this formula . Politics of Fear versus Global Anxiety: A Critical Analysis of Recent US Anti-Immigration Policies from Psychoanalytic Perspectives. Effective segmentation identifies where your customers are in the ___________, and assists your customers in taking the appropriate next step in their___________. PLEASE HELP CHOOSE WHICH SENTENCE THIS IS? If the members of our team had cooperated the opposition which was well trained but uninspired 6 complex sentence 7 compound sentence 8 run-on sentence 9 sentence fragment 10 simple sentence mention the basic needs of people list the bones that habe sinuses and give two possible functions of the sinuses In "The Raven and the First Men: The Beginnings of the Haida, which evidence best helps the reader infer that the Haida might find it acceptable behavior to play tricks on one another? Part A Your presentation should make a convincing argument that human activity is the major cause of climate change. Your presentation should answer some of these questions: What is climate? How is Earths climate changing? What are the natural and human factors that affect climate? How do scientists know that human activity is the major force behind climate change? What evidence do scientists have that climate is changing? Write down two additional questions you have about climate change that will help you make this argument in your presentation. 12pt In your opinion, should frontier airlines focus on managerial accounting or financial accounting as it works to get its finances back on firm footing? Ethene is exposed to h2 in a solution containing a chunk of solid palladium. if it reacts successfully, the original alkene will:________ Suppose that X is a random variable that has a binomial uncertainty distribution with parameters n = 10 and = 0.4. Calculate the numerical value of the probability that X = 6. What are the numerical values of the mean and standard deviation of the uncertainty distribution? x is directly proportional to wWhen w = 4, x = 48y is inversely proportional to xWhen x = 2, y = 14Find a formula for y in terms of w.Give your answer in its simplest form. Read the chart. In 2017, the government spent the least amount of money on which discretionary spending category A ________ occurs when neither of two transactions can be committed because they each have a lock on a resource needed by the other. If more water is entering a human red blood cell than exiting it, then the cell is surrounded by a(n) ______ solution movie about african girl growing up on water The nurse is aware that the newborn's circulatory dynamics during transition can be positively affected by which action prove that: 1-sin^2x cos*2x/cos^2x = tan^2x + cos^2x Some countries let the foreign exchange market determine the relative value of its currency. this is called a:________ As a rule of thumb, the sampling distribution of the sample proportion can be approximated by a normal probability distribution when _____