A respiratory pigment that requires a relatively low \(O_2\) partial pressure for loading has a high affinity for \(O_2\). Thus, the correct answer is an option (a).
Since the respiratory pigment requires low partial pressure of the gas, it has more affinity for the gas. As when compared to other pigments, it will more easily load the gas.
Affinity is defined as the degree to which a substance tends to combine with another and in this case, it is used to describe the degree to which the gas tends to combine with a respiratory pigment.
Respiratory pigment such as Myoglobin has a higher affinity than Haemoglobin to load oxygen.
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How many moles of oxygen atoms (not
molecules) are present in 6.41×1025 molecules
of dinitrogen pentoxide (N2O5)?
1. 532 mol
2. 106 mol
3. 32 × 1025 mol
4. 266 mol
Answer:
532 moles of O atoms.
Explanation:
Given data:
Number of moles of oxygen atom present = ?
Number of molecules of N₂O₅= 6.41×10²⁵ molecules
Solution:
First of all we will calculate the number of moles of N₂O₅.
1 mole = 6.022×10²³ molecules
6.41×10²⁵ molecules × 1 mol /6.022×10²³ molecules
106.4 mol
Number of atoms of O:
1 mole of N₂O₅ contain 5 moles of O atoms.
106.4×5 = 532 mol
fill in the products for the dissociation of the strong acid hno3 in water.
The products obtained from the dissociation of HNO₃ in water are hydronium ion, H₃O⁺ and nitrate ion, NO₃¯
An acid is a substance which when dissolved in water produces hydronium ion, H₃O⁺ as the only positive ion.
Strong acid ionize completely in water while weak acid only ionize to a certain degree (i.e partially) in water
Trioxonitrate (v) acid, HNO₃ is a strong acid and will ionize complete in water to form hydronium ion, H₃O⁺ and nitrate ion, NO₃¯ as illustrated below:
HNO₃ + H₂O —> H₃O⁺ + NO₃¯
Thus, the products for the dissociation equation are: hydronium ion, H₃O⁺ and nitrate ion, NO₃¯
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Give an example of a physical change in matter.
Answer:
Freezing or boiling water
5. How much water would need to be added to 750 mL of a 2.8 M HCl solution to
make a 1.0 M solution?
6. If I add 25 mL of water to 125 mL of a 0.15 M NaOH solution, what will the molarity of the diluted solution be?
7. If I add water to 100 mL of a 0.15 M NaOH solution until the final volume is 150 mL, what will the molarity of the diluted solution be?
8. How much 0.05 M HCl solution can be made by diluting 250 mL of 10 M HCl?
9. I have 345 mL of a 1.5 M NaCl solution. If I boil the water until the volume of the solution is 250 mL, what will the molarity of the solution be?
10.
How much water would I need to add to 500 mL of a 2.4 M KCl solution to make a 1.0 M solution
please help me
The values of molarity and volumes for the given questions are 2,100 mL, 0.75 M, 0.1 M, 50,000 mL, 2.07 M and 1,200 mL respectively.
What is the relation between the molarity & volume of solution?Relation between the molarity and volume of the solution will be shown by the following equation:
M₁V₁ = M₂V₂, where
M₁ & V₁ is the molarity and volume of one solution whereas M₂ & V₂ are the molarities and volume of the another solution.
Required volume of water needed to add at 750 mL of a 2.8 M HCl solution to make a 1.0 M solution will be calculated by using the above formula:V₂ = (750)(2.8) / (1) = 2,100 mL
Required molarity of diluted solution obtained on adding 25 mL of water to 125 mL of a 0.15 M NaOH solution will be calculated by using the above formula:M₂ = (0.15)(125) / (25) = 0.75 M
Required molarity of diluted solution obtained on adding 100 mL of a 0.15 M NaOH solution until the final volume is 150 mL will be calculated by using the above formula:M₂ = (100)(0.15) / (150) = 0.1 M
Required volume of HCl of 0.05M HCl can be made by diluting 250 mL of 10 M HCl will be calculated by using the above formula:V₂ = (10)(250) / (0.05) = 50,000 mL
Molarity of the resultant solution is:M₂ = (1.5)(345) / (250) = 2.07 M
Required volume of water to add on KCl solution is:V₂ = (2.4)(500) / (1) = 1,200 mL
Hence required values of molarity and volume are 2,100 mL, 0.75 M, 0.1 M, 50,000 mL, 2.07 M and 1,200 mL respectively.
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Which of the following is an ionic solid? A) CsF(s) B) CO2(s) C) Ne(s) D) Na(s) E) SiO2(s)
The answer is A) CsF(s). An ionic solid is a compound composed of positively charged cations and negatively charged anions held together by ionic bonds. CsF
CsF, or cesium fluoride, is an example of an ionic compound. Cesium (Cs) is a metal that readily donates one electron, resulting in a Cs+ cation, while fluorine (F) is a nonmetal that readily accepts one electron, resulting in an F- anion. The strong electrostatic attraction between the oppositely charged ions forms the ionic bond. In the solid state, CsF exists as a crystal lattice structure composed of alternating Cs+ and F- ions, making it an ionic solid.
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1. how are the following types of compounds recognized from their formulas? • ionic • covalent • acid
The type of compound can be identified by looking at its formula. Ionic compounds typically consist of a metal cation and a non-metal anion, and their formula will look like this: M(+n) X(-m), where M is the metal cation, X is the non-metal anion, and n and m are the charges of the ions.
Covalent compounds contain only non-metals and their formula will look like this: XyZz, where X, Y, and Z are the elements present in the compound and the subscripts (y and z) represent the number of atoms of each element.
Acidic compounds typically have the formula HX, where X is the anion present in the compound.
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What causes the periodic change between night and day?
Earth's revolution around the sun
the moon's rotation
the moon's revolution around Earth
Earth's rotation
Answer:
Earths Rotation
Explanation:
Answer:
D
Earth's rotation
Explanation:
Mark as branliest if right but im pretty sure im right
Which describes the genetic disorder that causes neurons in the brain to break down?
A. Huntington’s disease, which is a dominant disorder
B. Huntington’s disease, which is a recessive disorder
C. Duchenne muscular dystrophy, which is a sex-linked dominant disorder
D. Duchenne muscular dystrophy, which is a sex-linked recessive disorder
Answer:
i think is A. Huntington’s disease, which is a dominant disorder
Explanation:
if i not correct please correct me
Answer:
Answer is option choice: A
Explanation:
Other person is indeed correct.
What do electron interactions determine?
PLEASE ANSWER FAST!!
Which statement best describes the seasonal changes of plants in the Michigan and Florida regions during the summer?
A. Summer in Michigan is a time of growth and maturity because more sunlight and water is available. In Florida, plants enjoy the same conditions, but for a longer period of time.
B. Summer in Michigan is a time when flowers begin to sprout and bloom throughout the season. In Florida, flowers are always in bloom due to milder winters.
C. The summers in Michigan and Florida are similar because in both regions the change to the landscape is a dramatic change from the spring season.
D. The summers in Michigan and Florida are similar because the plants in both regions end their periods of dormancy, trees start to grow buds, and plants begin to flower.
The summers in Michigan and Florida are similar because the plants in both regions end their periods of dormancy, trees start to grow buds, and plants begin to flower.
What are the effects of summer in plants in Michigan and Florida?Summer is a period of increased sunshine and usually results in increased in plant growth and development.
Florida experienced an increased sunshine in summer periods.
Similarly, in Michigan, plants grow abundantly in summer time.
Therefore, the summers in Michigan and Florida are similar because the plants in both regions end their periods of dormancy, trees start to grow buds, and plants begin to flower.
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How many total atoms does O have in Al2O2
Answer:
2
Explanation:
Write out the net-ionic equation for the precipitation reaction that will happen with hydrogenphosphate ion upon the addition of 1 M CaCl2.
HPO₄⁻ (aq) + Ca²⁺ (aq) → CaHPO₄(s)
In this reaction, the calcium ion (Ca⁺) from calcium chloride combines with the hydrogen phosphate ion (HPO₄²⁻) to form solid calcium hydrogen phosphate (CaHPO₄), which precipitates out of the solution.
The net ionic equation for the precipitation reaction that occurs when hydrogen phosphate ion (HPO₄²⁻) reacts with 1 M calcium chloride (CaCl₂) can be written as follows:
HPO₄⁻ (aq) + Ca²⁺ (aq) → CaHPO₄(s)
In this reaction, the calcium ion (Ca⁺) from calcium chloride combines with the hydrogen phosphate ion (HPO₄²⁻) to form solid calcium hydrogen phosphate (CaHPO₄), which precipitates out of the solution.
The equation provided is a simplified net ionic equation that only includes the species directly involved in the precipitation reaction. In an actual solution, there would be other ions present, but they are not directly participating in the precipitation reaction and are not included in the net ionic equation.
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What volume would a 200 g sample of gold have, if its density is known to be 19.3 g/cm³?
Answer:
The volume that a 200 g gold sample would have is 10.36 mL.
Step-by-step explanation:
In this case it is known that the density of gold is 19.3 g / mL. This indicates that in 1 mL there are 19.3 g. Then the following rule of three can be applied: if 19.3 g is contained in 1 mL, how much volume is 200 g of gold?
volume= 10.36 mL
A fire that is burning wood will release water vapor and carbon dioxide
true or false?
Answer:
true.
Explanation:
how many s orbitals exist in one energy level of an atom?
The number of s orbitals present in one energy level of an atom is 1. There can be only one s orbital present in a single energy level.
What is an s orbital?
An s-orbital is a region of space around the nucleus where an electron is most likely to be found. An s-orbital is a spherical shape that is symmetrical around the nucleus of an atom.
What is an energy level?
An electron shell is another name for an energy level. It's a portion of an atom where electrons are found. Electrons, which are negatively charged, are constantly moving around the nucleus of an atom in energy levels. Electrons that are farther away from the nucleus are located in higher energy levels.
What is an electron configuration?
The arrangement of electrons in an atom is referred to as its electron configuration. In terms of electron shells, subshells, and orbitals, it reveals how the electrons are arranged.
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What is the difference between codon and promoter?
Codons are sequences of three nucleotides that determine the sequence of amino acids in a protein. Promoters are DNA sequences located upstream of genes that signal the start of transcription.
Codons and promoters are two different concepts in the field of genetics. In simpler terms, codons are like the letters in a word that determine the meaning of the word, while promoters are like the punctuation marks that signal the beginning of a sentence. Codons are found within genes, while promoters are found outside of genes. Codons are universal, meaning that they are the same in all living organisms, while promoters are specific to each gene and vary between species.
In summary, codons and promoters are two different genetic elements that play important roles in gene expression and protein synthesis. While they both involve the use of nucleotide sequences, they function in different ways and are located in different parts of the genome.
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If element A is in Group 13 and element B is in Group 17, which ions will be formed when A and B react together?
A3+ and B2-
A3+ and B-
A+ and B-
A2+ and B-
Answer:
A3+ and B-
Explanation:
Elements in group 13 have outermost electron configuration, ns2np1 hence they form trivalent positive ions.
Elements in group 17 have outermost electron configuration ns2np5 hence they form univalent negative ions.
This implies that, if element A is in Group 13 and element B is in Group 17, the ions formed are A3+ and B-.
5.50 ml of h2o and 3.00 ml of an aqueous 0.030 m i- solution were added to 12.75 ml of an aqueous 0.025 m fe3 solution. the total volume of the solution is 21.25 ml. what is the diluted fe3 concentration?
The total volume of the solution is the 21.25 ml. The diluted Fe³⁺ concentration is 0.0097 M.
The volume of the water = 5.50 mL
The molarity of the solution = 0.030 M
The volume = 3 mL
The moles = molarity × volume
The moles = 0.030 × 0.003
The moles = 0.00009
The concentration of solution = moles / volume
The concentration of solution = 0.00009 / 0.00550
The concentration of solution = 0.0163 M
The final volume = 21.25 mL
The diluted Fe³⁺ concentration = ( 0.0163 × 12.75 ) / 21.25
The diluted Fe³⁺ concentration = 0.0097 M
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Is salt and water a solution? Give a reason for your answer.
Answer:
yes
Explanation:
as the salt is a polar compound which means that its dissolvable in water
so the salt would be solute and the water is the solvent
draw the structure of the major organic product isolated from the reaction of 1-hexyne with chlorine (1 mol).
The structure of the major organic product isolated from the reaction of 1-hexyne with chlorine (1 mol) is 3-chloro-1-hexene.
When one mol of 1-hexyne reacts with chlorine, the major organic product isolated from the reaction is 3-chloro-1-hexene.
Structure of the major organic product isolated from the reaction of 1-hexyne with chlorine (1 mol):Explanation:1-hexyne is an alkyne containing six carbon atoms and a triple bond between the first and second carbon atoms. When it reacts with chlorine, the triple bond breaks, and a chlorine atom is added to one of the carbons.
This results in the formation of several products.3-chloro-1-hexene is the major organic product that is obtained from this reaction. It is an alkene that contains six carbon atoms, with a chlorine atom attached to the third carbon atom. Its structure is shown below:
Therefore, the structure of the major organic product isolated from the reaction of 1-hexyne with chlorine (1 mol) is 3-chloro-1-hexene.
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What is the biggest grass in the world
Answer:
bamboo is the biggest/tallest grass in the world
Answer:
Giant Bamboo
Explanation:
Giant bamboo, which can grow up to 151 feet tall, is the largest variety of grass.
What is the average acceleration from 0 seconds to 4 seconds
Answer:
1
Explanation:
you would take 4 subtract 0 which is 4 and divide it by 4 which is 1
if electromagnetic radiation has a frequency of 2.0 x 10^15 s^-1 what is the radiation’s energy?
\(1.3\times 10^{-18}\) Joule is the radiation’s energy.
Explanation:
The energy of electromagnetic radiation is given by Planck's law:\(E=h\times \nu\)
Where:
E = Energy of electromagnetic radiation
h = Planck's constant=\(6.626\times 10^{-34} Js\)
\(\nu\) = frequency of the electromagnetic radiation
Given:
The frequency of the electromagnetic radiation =\(\nu = 2.0\times 10^{15} s^{-1}\)
To find:
The energy of the electromagnetic radiation
Solution:
The frequency of the electromagnetic radiation = \(\nu = 2.0\times 10^{15} s^{-1}\)
The energy of the radiation = E
\(E=h\times \nu\\E=6.626\times 10^{-34} Js\times 2.0\times 10^{15} s^{-1}\\=1.3\times 10^{-18} J\)
\(1.3\times 10^{-18}\) Joule is the radiation’s energy.
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Greenhouse gasses help Earth's energy budget stay balanced. They absorb radiation from the sun which traps heat close the surface. Without
greenhouse gasses our planet would be too cold. Too many green house gasses could cause our planet to heat up.
True or False
Answer:
true
Explanation:
because of gravity hahah
What do you understand by the terms radial node and nodal plane, as applied to AO wavefunctions? Illustrate your answer using the 2s and 2p AOs. Explain why radial nodes arise from the radial part of the wavefunction, whereas nodal planes arise from the angular part of the wavefunction
In the context of atomic orbital (AO) wavefunctions, the terms "radial node" and "nodal plane" refer to different aspects of the wavefunction's behavior.
A radial node is a region in the AO wavefunction where the probability of finding an electron is zero along the radial direction. In other words, it represents a spherical shell where the electron is unlikely to be found. The number of radial nodes is determined by the principal quantum number (n) of the orbital. For example, the 2s orbital has one radial node, while the 2p orbital has no radial nodes.
On the other hand, a nodal plane is a flat plane within the AO wavefunction where the probability of finding an electron is zero along a particular direction. It represents a surface that divides the orbital into two regions of opposite phases. The number of nodal planes is determined by the angular quantum numbers (l and m) of the orbital. For example, the 2s orbital has no nodal planes, while the 2p orbital has one nodal plane (the xz or yz plane).
Radial nodes arise from the radial part of the wavefunction because they depend on the distance from the nucleus. The radial part determines the distribution of the electron density as a function of distance, and the nodes correspond to regions where the density drops to zero.
On the other hand, nodal planes arise from the angular part of the wavefunction because they depend on the orientation and shape of the orbital. The angular part describes the angular distribution of the electron density around the nucleus, and the nodal planes correspond to regions where the phase of the wavefunction changes sign.
In summary, radial nodes are related to the distance from the nucleus and arise from the radial part of the wavefunction, while nodal planes are related to the orientation and shape of the orbital and arise from the angular part of the wavefunction. The 2s orbital has one radial node and no nodal planes, while the 2p orbital has no radial nodes and one nodal plane.
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Which are proteins that recognize specific proteins on bacteria a.antibodies b.enzymes c.nutrients d.receptors
Answer:
A
Explanation:
Answer:
A. antibodies
Explanation:
based on location on the periodic table, which metal is likely to be less reactive than both strontium and sodium?
Answer:
Magnesium is likely to be less reactive than both strontium and sodium
Answer:
The answer is Magnesium (Mg)
a supporter of the phlogiston theory says that when petrol burns in air phlogiston is lost in the air so the mass decreases. Write a letter to this person explaining why the phlogiston theory is wrong
Phlogiston theory is wrong as it states that when petrol burns in air phlogiston is lost in air so the mass decreases but as per law of conservation of mass , mass never increases or decreases rather it is constant.
What is law of conservation of mass?According to law of conservation of mass, it is evident that mass is neither created nor destroyed rather it is restored at the end of a chemical reaction .
Law needs to be modified in accordance with laws of quantum mechanics under the principle of mass and energy equivalence.This law was proposed by Antoine Lavoisier in the year 1789.
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Explain biomass combustion and energy recovery using grate
furnace or fluidized bed systems
Biomass combustion is referred to as a process in which organic materials are burnt and their remains are used to produce energy.
The process of combustion is very simple it refers to the burning of biomass which include wood, farm waste, and crops which are further used to produce or generate energy in the form of electricity and also heat, it can be termed as renewable energy that utilized the energy of biomass to produce another form of energy.
The Grate furnace method is one of the common methods used for biomass combustion and comprises several steps for the recovery of energy.
The first step consists of drying up the biomass by removing all the moisture using heat. The next step includes the production of flames and heat by combusting hydrogen present in it. After that, the remaining solid waste will undergo combustion in the presence of oxygen.
The last step includes the disposal of ash which gets accumulated due to incombustible materials like sand.
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Mass = 35g Volume = 7cm³ What is the Density?
Answer:
The answer is
5.0 g/cm³Explanation:
The density of a substance can be found by using the formula
\(density = \frac{mass}{volume} \\ \)
From the question
mass = 35 g
volume = 7 cm³
The density is
\(density = \frac{35}{7} \\ \)
We have the final answer as
5.0 g/cm³Hope this helps you