3. Calculating pH from Hydrogen Ion Concentration: - What is the
pH
of a solution that has an
H+
concentration of: a.
1.75×10^−5 mol/L
b. 6.50×10^−10 mol/L
c. 1.0×10^−4 mol/L
d. 1.50×10^−5 mol/L
Answers
The pH of the given solutions are: a) 4.756b) 9.187c) 4d) 4.823
It is essential to use the following terms in your answer when answering Student question: 3. Calculating pH from Hydrogen Ion Concentration: - What is the pH of a solution that has an H+ concentration of: a.1.75×10^−5 mol/L b. 6.50×10^−10 mol/L c. 1.0×10^−4 mol/L d. 1.50×10^−5 mol/Lin 160 words. pH and the Hydrogen Ion Concentration are related via the following formula: pH=-log[H+]a) The hydrogen ion concentration is 1.75 × 10-5 mol/L.
To calculate the pH, substitute the given values in the above formula. pH=-log(1.75 × 10-5)pH=4.756b) The hydrogen ion concentration is 6.50 × 10-10 mol/L. To calculate the pH, substitute the given values in the above formula. pH=-log(6.50 × 10-10)pH=9.187c) The hydrogen ion concentration is 1.0 × 10-4 mol/L.
To calculate the pH, substitute the given values in the above formula. pH=-log(1.0 × 10-4)pH=4d) The hydrogen ion concentration is 1.50 × 10-5 mol/L. To calculate the pH, substitute the given values in the above formula. pH=-log(1.50 × 10-5)pH=4.823
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Related Questions
which glands secrete hormones that regulate metabolism of carbohydrates, proteins, and fats? select all that apply. one, some, or all responses may be correct. pancreas
Answers
The pancreas secretes hormones that regulate metabolism of carbohydrates, proteins, and fats.
The hormones insulin and glucagon are secreted by the pancreas and help regulate blood sugar levels and appetite, stimulate stomach acids, and tell your stomach when to empty.
Insulin and glucagon are two hormones secreted by the pancreas that are essential to regulating metabolism. Insulin helps the body absorb glucose from the bloodstream, while glucagon helps regulate glucose levels in the body. Insulin helps cells take in glucose, which is then converted into energy for the body. Glucagon helps the body break down stored energy, such as fat and glycogen, when glucose levels are low.
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What does natural selection mean and how and can you correlate it to our bacteria.
Answers
The National Forest Management Act in 1976 required companies to create
plans for what purpose?
Answers
Answer: The National Forest Management Act in 1976 required companies to create plans to counter damage to natural ecosystems on public lands. They didnt want companies clearing a ton amount of forest becuase it could damage the habitat.
Hope this helped!
The hypothesis becomes the basis of what?
A. the data to interpret
B. a law
C. a statistical analysis
D. the experiment
Answers
Answer:
may be the answer is A or D
The hypothesis is the supposed conjecture that is made for the experiment or the investigation to occur. The hypothesis makes the basis of the experiment. Thus, option D is correct.
What is a hypothesis?A hypothesis is defined by the idea or the proposed concept that is not proven yet and is based on the information with limited evidence to support the detail.
It is falsifiable and is not assumed to be truly proven or accurate. It is a foretelling that can be proven correct or incorrect by the experimental design.
It is important in linking the idea to the experiment question and the theoretical data. It allows the researcher to solve the problem by providing the solution through research and experiment.
Therefore, option D. the hypothesis is the basis of an experiment.
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Which two processes during cellular respiration release chemical energy
stored in chemical bonds?
A. The conversion of NADH to NAD*
B. The splitting of glucose
C. The production of ATP by ATP synthase
D. The conversion of FAD to FADH2
Answers
The splitting of glucose release chemical energy stored in chemical bonds.
In process of cellular respiration, the energy in food is converted into the energy that is used by the body's cells. In process of cellular respiration, glucose and oxygen are converted into carbon dioxide and water, and the energy is converted to ATP.
Cellular respiration, is the process that takes place in the mitochondria of organisms which break down sugar in the presence of oxygen and release energy in form of ATP. Carbon dioxide and water are released as the waste products.
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The graph shows how the population of turtles in a freshwater pond has
changed over the years.
Turtle Population
250
225
200
175
150
Number of Turtles
125
100
75
50
5
6
10
Year
At which time has the turtle population reached the carrying capacity of the
pond?
A. Year 1
B. Year 5
C. Year 3
O D. Year 10
Answers
Answer:
B. Year 5.
Explanation:
In 5 years time the turtle population reached the carrying capacity of the pond. Carrying capacity of pond refers to the population of marine animals such as fishes, turtles etc can live and survive on the natural food available in the pond. If the food is present in large amount, than carrying capacity of the ecosystem is large. In pond ecosystem, the population of turtle decreases because the food is not sufficient to feed the existing population.
Answer:6 years
Explanation:
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4 Spheres Observation (Bio, Geo, Atmo, Hydro) : What did you see that represents each? How did they interact with each other? and pls be specific in ur answer, and pls no links!
Answers
Answer:
The spheres interact to effect Earth’s systems and processes, and they are constantly changing each other.
For example, ocean currents (hydrosphere) affect air temperature (atmosphere): The Gulf Stream is a powerful water current in the Atlantic Ocean. It’s warm water moderates the temperatures on the east coast of the USA.
Another example of how the spheres affect each other is through erosion. Erosion happens in the desert when wind (atmosphere) shapes the sand in the geosphere. Water (hydrosphere) can also shape land, such as in the formation of the Grand Canyon.
Humans have a huge impact on all spheres. Negative impacts, such as burning fossil fuels, pollute the atmosphere. Piling up our waste in landfills affects the geosphere. Pumping waste into the oceans harms the hydrosphere. And overfishing and habitat destruction can reduce the diversity of living things in the biosphere.
However, people everywhere are working to change things. Recycling efforts are increasing all over the world, and companies are finding new ways to reduce fossil fuels. In the US alone, people are recycling six times more than a generation ago.
Data table 1: lab safety equipment alternatives
(Shower or sink) (Paper towels) (Well ventilated are) (No substitution)
Eye wash staion spill containment kitm fune hood Safty gegg's
laboratory shower ______________________ __________ first aid kit
________________ kitty litter ___________________ fire extinguisher
________________ sand ___________________ spill containment kit
Answers
Shower or sink 1. Eyewash station 2. Lab shower. Paper Towels Spilt centainment. Vermiculite (hy-dorated kaminas Mg, Al iren silicate). 2. clay / Sand 3. Kitty Litter No substitution. 10 Safety goggles. 2. First aid kit 3. Fire extinguisher- 4. Spill containment kit are lab safety equipment
(Lab safety equipment alternatives)
1. Shower/Sink
Eyewash station
Laboratory shower
Drench Hoses
Self contained eye/face washes
2. Paper Towels-
Kitty litter
Sand
Spill containment kit
clay
3. Well ventilated area-
Fume hood
HEPA filters
Biosafety cabinet
Laminar flow
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Data Table 1 Lab Safety Equipment Alternatives Shower or Sink Paper Towels Well Ventilated Area No Substitution laboratory shower spill containment kit fure hood safety goggles 1 eyewash station fire extinguisher first aid kit exercise 2 Data Table 2: Sodium Hypochlorito SDS information Items SOS information
Why do you think you arent able to create a divergent oceanic/continental boundary
Answers
Answer:
Explanation:
The oceanic plates are themselves formed from the divergent boundary, so probably not. Even if a new rifting occurred exactly at the boundary, the result would eventually be that the ocean floor surrounds the
our colleague mentions an interesting fact. prior to being diagnosed with huntington’s disease, individual v-2 from (the pedigree in question 1) donated to a cryo-sperm bank and provided consent that his sperm sample could be used for unlimited research purposes. you decide to explore marker a further using this sperm sample.
Answers
Huntington's disease is a genetic neurodegenerative disorder characterized by the progressive degeneration of nerve cells in the brain.
The sperm sample donated by individual V-2 to a cryo-sperm bank with consent for unlimited research allows for further exploration of marker A in relation to Huntington's disease.Individual V-2's decision to donate his sperm sample to a cryo-sperm bank and provide consent for unlimited research presents a valuable opportunity to delve deeper into marker A and its implications in Huntington's disease.
By utilizing this sperm sample, researchers can conduct in-depth investigations to gain a better understanding of the relationship between marker A and the development or progression of Huntington's disease.With the sperm sample in hand, researchers can employ various techniques and analyses to study marker A more extensively. This might involve genetic testing, such as DNA sequencing or genotyping, to explore the specific characteristics and variations associated with marker A.
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Two students are talking about what they learned in class. One says, "sex is biological, not socially constructed." Support or oppose the argument that sex is biological and not socially constructed. Use at least two course materials (articles, videos, podcasts, etc) to make your point.
Answers
Sex is a biological trait that refers to the observable physical and genetic characteristics that distinguish males from females. It is frequently assumed that sex is based on biological or genetic characteristics rather than social and cultural aspects.
The physical variations between males and females, such as genitalia and breasts, are some examples of sex differences. Thus, it is a biological characteristic rather than a social one. Both social constructionism and biological determinism, on the other hand, have opposing perspectives on gender. Biological determinism emphasizes that gender differences are inborn, while social constructionism emphasizes that they are socially produced. According to the social constructionism perspective, gender identity and the roles associated with it are the product of socialization and cultural expectations, whereas biological determinism focuses on innate biological differences and the impact of biology on gender.
The claim that sex is a biological trait and not socially constructed can be supported by two course materials. The article "Sex as Biological and Gender as a Social Construct" by Anne Fausto-Sterling argues that sex is a biological characteristic because it is based on genitalia and chromosomes, while gender is socially constructed. This article suggests that sex is primarily concerned with physical characteristics, while gender is linked to social and cultural expectations, which is consistent with the idea that sex is biological and gender is social.
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Page 1 Page 2 Radioactive decay involves the changing of a radioactive atom into another radioactive atom. For example, rocks and minerals may contain potassium-40 that changes into argon-40. Mass spectrometers measure the number of these atoms in a rock or mineral sample. This information and knowing the half-life of potassium-40 can help determine the age of rock layers. The half-life of potassium-40 is 1.3 billion years. The potassium-40 in rocks and minerals will decay through many half-lives until all of them change into argon-40. How many atoms will there most likely be at the third half-life of potassium-40 in this model? A model rock layer had 50 pennies (atoms of potassium-40). How old is the rock layer?
Answers
Answer:
13 and 1.3 billion years
Explanation:
Just got it right
Answer:
1. 13
2. 1.3 billion years old
Explanation:
good luck hope you get a 1000000
Which microscope is often used to view metal surfaces?
scanning electron microscope
scanning tunneling microscope
transmission electron microscope
compound light microscope
Answers
Answer:
scanning tunneling microscope
Explanation:
Microscopes used to view metal surfaces.
hurryyy!!! do all questions for crown thank you very much
The ability to taste PTC is due to a single dominant allele "T". You sampled 215 individuals in a biology class, and determined that f150 could detect the bitter taste of PTC and 65 could not.
What is the predicted frequency of the recessive allele (t)?
What is the predicted frequency of dominant allele (T)?
In a population of 10,000 people, how many would be heterozygous (assuming Hardy-Weinberg equilibrium)? Homozygous dominant? Homozygous recessive? Calculate all of the potential frequencies.
Answers
The ability to taste PTC is due to a single dominant allele "T". You sampled 215 individuals in a biology class, and determined that 150 could detect the bitter taste of PTC and 65 could not.
What is a dominant allele?Generally, To calculate the predicted frequency of the recessive allele (t), we use the equation:
f(t) = 1 - f(T)
where f(T) is the frequency of the dominant allele (T).
To find f(T), we use the equation:
f(T) = (number of individuals who can taste PTC / total number of individuals sampled)
f(T) = 150/215
= 0.7
f(t) = 1 - 0.7
= 0.3
The predicted frequency of the dominant allele (T) is 0.7
In a population of 10,000 people, assuming Hardy-Weinberg equilibrium, we can use the following equations to find the number of individuals who are heterozygous, homozygous dominant, and homozygous recessive:
f(TT) = (f(T))^2 f(TT) = (0.7)^2 = 0.49
f(tt) = (f(t))^2 f(tt) = (0.3)^2 = 0.09
f(Tt) = 2 * f(T) * f(t) f(Tt) = 2 * 0.7 * 0.3 = 0.42
Homozygous dominant = 4900 people Homozygous recessive = 900 people Heterozygous = 4200 people
Please note that these predictions are based on the assumption that the population is in Hardy-Weinberg equilibrium and not influenced by any external factors such as mutation or natural selection.
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Cells that do not divide are described as being in the ____ phase.
a. G1
b. G2
c. G0
d. S
Answers
Answer:
The G0 Phase
Hope this helps!!
Which of the following is not a factor that affects biodiversity?
a - land area
b- climate
c- diversity of niches
d- cancer fighting drugs
Answers
Answer:
B. duhhhh
Explanation:
HELPPPPPPP!!!!!!
An interglacial is a period of time that occurs between Ice Ages. During previous interglacials, the CO2 levels in the atmosphere were about 300 parts per million (ppm). In 2013, they were approximately 420 ppm. Rounding to the nearest percent, what is the percent increase in CO2 between these two time periods?
Answers
Answer:
40% increase
Explanation:
Percentage Increase Formula:
Percentage Increase=[(Final Value−Starting Value)/|Starting Value|] ×100%
To Calculate Percentage Increase:
1) Subtract final value (later value) minus starting value (initial value)
2) Divide that amount by the absolute value of the starting value (initial value)
3) Multiply by 100 to get percent increase
Keep in mind: If the percentage is negative, it means there was a decrease and not an increase.
So for your problem,
[(420-300)/300]*100% = 40% increase
20 POINTS
ARE NATURAL GAS RENEWABLE OR NON-RENEWABLE?
Answers
Natural gas is non-renewable, but some alternative forms of natural gas like biomethane are renewable.
Some individuals in a population possess traits or characteristics that make them better suited for their particular environment. What happens to these traits with each new generation?
A) These traits will gradually begin to disappear.
B) The traits will become stronger and more dominant.
C) The traits will become more common among the offspring.
D) The number of offspring possessing these traits will stay the same generation after generation.
Answers
C) The traits will become more common among the offspring is correct answer
What is Traits?
Traits are distinguishing characteristics or attributes possessed by an individual that are determined by their genetic makeup and environmental factors. These traits can be physical, such as hair color or height, or behavioral, such as sociability or aggression. Traits can be inherited from parents and passed down through generations, or they can be influenced by environmental factors such as diet or lifestyle. In the context of biology and genetics, traits play an important role in determining an individual's physical and behavioral characteristics, and how they interact with their environment.
With each new generation, individuals with advantageous traits will be more likely to survive and reproduce, passing on those traits to their offspring. Over time, this can lead to a higher frequency of the advantageous traits in the population. This is known as natural selection.
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Which principle allows us to assign dates to events on the geologic time scale?
faunal succession
extinction
radioactive decay
Answers
Answer:
radioactive decay
Explanation:
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1.What does a wider tree ring indicate, as opposed to a thinner tree ring?(1 point)
PLUS 7 MORE QUESTIONS.
BTW this is the Atmosphere and Climate Change Quiz
Answers
which process is directly used by autotrophs to store energy in glucose?
Answers
Answer:
Photosynthesis
Explanation:
yuh
Erythropoietin is a HORMONE produced by the KIDNEYS that simulates (causes) the production of RED BLOOD CELLS. Which three organ systems are interacting when this happens?
Answers
Answer:
Circulatory and Urinary. Unsure of third one.
Explanation:
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Will a hurricane gain strength or lose strength if winds become strong? Explain ur answer
Answers
Answer:
it will gain stanght because it is part wind
Answer:
"...Hurricanes experience more friction over land than over the ocean water. This also slows down hurricanes. Hurricanes do not only dissipate over land. Cool waters and strong winds may also decrease the strength of a hurricane."- Enotes
:D
3. Which term describes an organism with no hard skeleton? *
a)Endoskeleton
b)Hydrostatic
C) Exoskeleton
Answers
Answer:
B) Hydostatic
Explanation:
Hydrostatic skeletons are found in invertebrate organisms, it means the skeleton is fluid filled, these are common in simple organisms. Endoskeletons are in vertebra animals, humans have an endoskeleton. Exoskeletons are in insects, which are invertebrates but the bone-like material is hard. I would chose Hydrostatic since it is filled with a liquid.
What are three main functions in living organisms for proteins? (hint: there are many correct answers to this question, your graphic organizer will help
Answers
The main functions of proteins in living organisms are: Structural function, Catalytic function, and as Chemical messengers
What are the functions of proteins in living organisms?Proteins are macromolecules found in living organisms consisting of of amino acid subunits linked together by peptide bonds.
The main function of proteins in living organisms are:
Structural function- proteins are the main structural molecules in living organisms such as in muscles and in other body tissuesCatalytic function - proteins known as enzymes function as biological catalysts.Chemical messengers - proteins called hormones serve as chemical messengersIn conclusion, proteins serve various functions in the body.
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The diagram shows a cladogram.
Which statement is supported by the cladogram?
A. The tuna does not have a
jaws.
B. The leopard does not walk on four legs.
C. The lamprey does not have vertebral column.
D. The salamander does not produce an amniotic egg.
Answers
Answer: C
Explanation:
How would you describe dominant in a different way then this? In a easy way?
Refers to a trait that appears more frequently than another trait, resulting from interactions between gene alleles.
Answers
Answer:
A dominant allele is a variation of a gene that will produce a certain phenotype, even in the presence of other alleles. A dominant allele typically encodes for a functioning protein. The allele is dominant because one copy of the allele produces enough enzyme to supply a cell with plenty of a given product.
5. cirrhosis of the liver, a disease commonly associated with alcoholism, obstructs blood flow through hepatic blood vessels. as a result, blood backs up and capillary pressure greatly increases in organs drained by the hepatic portal system. what effects might this increasing capillary pressure produce, and which organs would it affect?
Answers
Answer:
Some effects of increased capillary pressure in the portal system are:
Varices: These are enlarged and swollen veins that form in areas where blood can bypass the portal system, such as the esophagus, stomach, rectum or belly button. Varices can rupture and bleed, causing potentially life-threatening complications such as hemorrhage and shock.Ascites: This is the accumulation of excess fluid in the abdomen due to leakage from the surface of the liver and intestine. Ascites can cause abdominal discomfort, bloating, shortness of breath or an infection.Encephalopathy: This is a condition that affects brain function due to toxins (such as ammonia) that are not cleared by the liver. Encephalopathy can cause confusion, memory loss, mood changes and coma.These effects can affect various organs in different ways depending on their location and severity. For example:
Varices can affect the esophagus (causing difficulty swallowing), stomach (causing ulcers), rectum (causing bleeding) or belly button (causing hernia).Ascites can affect the lungs (causing pleural effusion), kidneys (causing renal failure), heart (causing cardiac failure) or intestines (causing bowel obstruction).Encephalopathy can affect any part of the brain depending on which toxins accumulate.I hope this helps :)
and even for that do i love you the more. i am your spaniel. and, demetrius, the more you beat me, i will fawn on you. analysis
Answers
The lines you mentioned are from William Shakespeare's play "A Midsummer Night's Dream," specifically spoken by the character Helena in Act 2, Scene 1. In this scene, Helena is expressing her deep affection for Demetrius, despite his mistreatment towards her.
The lines reflect a complex emotional dynamic and can be analyzed in the following ways:
Love and Devotion: Helena's words illustrate her unconditional love and unwavering loyalty towards Demetrius. She compares herself to a faithful spaniel, willing to endure mistreatment and still show affection. It highlights her willingness to endure hardship in hopes of winning Demetrius' love.
Desperation and Self-deprecation: Helena's statement suggests a certain desperation in her pursuit of Demetrius. She acknowledges that even if he continues to reject or mistreat her, she will still fawn over him, seeking any opportunity to gain his attention or affection. This demonstrates her deep longing and her belief that her love can overcome his indifference or even cruelty.
Power imbalances: Helena's words also reveal a power imbalance in her relationship with Demetrius. She positions herself as inferior to him, accepting mistreatment and demonstrating subservience. This dynamic raises questions about societal norms, gender roles, and the complexities of love and desire.
Overall, these lines from "A Midsummer Night's Dream" capture the complexities of unrequited love, devotion despite mistreatment, and the intricate dynamics between characters. They provide insight into Helena's character and her emotional journey throughout the play.
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