The peptides amino acids form peptide linkages between -COOH and -NH2 groups in protein.
What do you mean by peptides?
Peptides are short chains of amino acids that are linked together by peptide bonds. They are found in all living organisms and play important roles in many biological processes, such as cell signaling, hormone production, and metabolism. Peptides can range in size from two to hundreds of amino acids and can be made up of different combinations of amino acids.
Peptide bonds are formed when the carboxyl group (COOH) of one amino acid reacts with the amino group (NH2) of another amino acid. This creates a peptide bond, which is a covalent bond between the two amino acids. As proteins are made up of many amino acids, this process of forming peptide bonds is what links the amino acids together to form a protein.
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Can someone please help me
Question 1 For parts of the free-response question that require calculations, clearly show the method used and the steps involved in arriving at your answers. You must show your work to receive credit for your answer. Examples and equations may be included in your answers where appropriate. HCl(aq) + NaOH(aq) + NaCl(aq) + H20(1)
A student was given the task of titrating a 20.mL sample of 0.10MHCl(aq) with 0.10MNaOH(aq). The HCl(aq) was placed in an Erlenmeyer flask. An equation for the reaction that occurs during the titration is given above. (a) According to the equation for the reaction, if the amount of the reactants is halved, how does this affect the amount of H20(I) produced in the reaction?
Titration is a quantitative analysis method for determining the concentration of a substance from a measured titrant. According to the equation, if the reactants are halved, the amount of H2O produced will be halved.
The molecular equations for sodium hydroxide, hydrochloric acid, sodium chloride, and water can be expressed as:
HCl + NaOH ⇒ NaCl + [tex]H_{2}[/tex]O
In the given equations, the spectator ions and the ionic equation can be distinguished as follows:
H⁺ + Cl⁻ Na⁺ + OH⁻ ⇒ Na⁺ + Cl⁻ + 2H⁺ + O⁻²
The net ionic equation is:
H⁺ + OH⁻ ⇒ [tex]H_{2}[/tex]O
From the above equation, we can see that the production of water molecules depends on the number of reactants. The reactants are,
H⁺ and OH⁻.
Therefore, when the number of reactants is halved, the resulting water molecules are halved.
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Need the remaining questions answered thank you
Explanation:
14) We need to find the # of moles of NaOH in 3.5 L solution. Note: 1 M = 1 mol/Ll
(3.00 mol NaOH/1 L)(3.5 L) = 10.5 mol NaOH
Next we need find the volume of 19.4M NaOH solution that contains 10.5 mol NaOH:
(10.5 mol NaOH)×(1 L NaOH/19.4 mol NaOH)
= 0.541 L NaOH
This means that 0.541 L (541 mL) of 19.4M NaOH solution must be diluted to 3.5 L in order to get 3.00M NaOH solution.
15) 425 mL (0.425 L) of 0.105M HCl solution contains
(0.105 mol HCl/1 L)×(0.425 L) = 0.0446 mol HCl
so when enough water is added to 1L, the molarity becomes
0.0446 mol HCl/1 L = 0.0446M HCl
16) CaBr2 ---> Ca^+2 + 2Br^-1
For every Ca^+2 ion in the solution, you have 2 Br^-1 ions
If the concentration of CaBr2 is 6 mol/L (or 6M),.then the concentration of Br^-1 irons is
[Br^-1] = 2×[Ca^+2] = 2×(6 mol/L) = 12 mol Br^-1/L
17) The reason you won't need 1.0 L of water is that part of the volume of the solution is taken up by the NaOH so you will always need slightly less than 1 L.
Please help have to do today
What are some examples of evidence that support Darwin's theories of evolution and natural selection?
Some examples of evidence that support Darwin's theories of evolution and natural selection , such as fossils and similarities between related living organisms.
Darwin employed certain sorts of evidence to support his hypothesis of natural selection, and these types of evidence are still used today. Examples include fossils and similarities between related living animals. Others, like DNA analysis, were unavailable to Darwin's generation but are now employed by scientists to further our understanding of evolution. evidence supporting evolution: fossil strata, remains of extinct organisms, similarities between current-day organisms, DNA similarities, and embryonic similarity. Artificial selection, or breeding, is a crucial sort of evidence that Darwin looked at and is being looked at and employed today.
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A student standardized a solution of NaOH and found that the concentration was 0.542 M. They then used it to titrate a monoprotic acid. If 50.40 mL of the base was used, how many moles of acid were neutralized? (Do not report your answer in scientific notation)
Answer:
0.0272 moles
Explanation:
The number of moles of acid that were neutralized can be found by multiplying the volume of the base (in liters) by its concentration (in moles/liter) and then multiplying that value by the stoichiometric coefficient of the acid in the balanced chemical equation for the neutralization reaction.
To begin, we need to convert the volume of the base from milliliters to liters.
50.40 mL = 0.0504 L
Next, we can multiply the volume of the base (in liters) by its concentration (in moles/liter) to find the number of moles of base used in the titration.
0.0504 L * 0.542 M = 0.0272 moles
Since this is a neutralization reaction between a monoprotic acid and a strong base, the acid:base ratio is 1:1.
So the acid that has been neutralized is also 0.0272 moles.
Please help me with this question it’s due in five minutes I’ll give brainliest
DOES ANYONE KNOW ANY OF THE ANSWERS TO THIS ??
Answer:
Which one do you need the answer to?
Explanation:
I need help ASAP!!!! Which of the following is an advantage of using nuclear power plants to
produce electricity?
A) Radioactive waste from nuclear reactors is now being used to power cars,
B) There are no hazardous byproducts from nuclear reactions,
C) Nuclear power does not produce greenhouse gasees
Answer:
The answer is C.
Explanation:
Answer:
C is right i yeah C is right
what is physiography ?
Answer:
Physical geography is one of the two fields of geography. Physical geography is the branch of natural science which deals with the processes and patterns in the natural environment such as the atmosphere
FOR MY FINAL PLEASE HELP OMG IM FREAKING OUT
Answer:
4400, and 0
Explanation:
since they traveled 2200 in one direction, to return home they must travel that distance again, so they travel 4400
displacement is the distance from the start point, so since they are back home at the end of the trip, they did not get displaced at all
if you have any questions, leave them in the comments and i will try to answer them, if this helped, pls give brainliest
Answer:
My answer to the question is 4400 and 0
Why do you think when we see a recessive trait, phenotype, like a straight hair line, that we can figure out the genotype? Why can we not for sure determine the genotype of a dominant trait?
Answer & Explanation:
It is NOT POSSIBLE to determine a person's genotype if that person presents the dominant trait
Which of the following techniques can be used to separate a heterogeneous mixture into its component parts? (3 points)
Sort by color
Separation by density
Apply heat
Apply pressure
Answer:
Separation by density
Hope this helps
consider the following organic compounds ;propene butane ethanol and ethyne. which of these is an isomer of methyl propane.
What is the outcome when the arrangement of atoms changes in a substance?
When the arrangement of atoms changes in a substance, the properties of the substance can change as well. The different arrangements of atoms can lead to different chemical and physical properties.
For example, if the atoms of a substance are rearranged to form a new compound, the new compound will have different chemical properties than the original substance. A new compound may have a different color, odor, reactivity, or melting point than the original substance.
Changing the arrangement of atoms without changing the chemical composition can change the physical properties. For example, a crystalline solid has atoms or molecules arranged in a regular, repeating pattern. This arrangement gives the material unique properties such as density, melting point, and hardness. If the arrangement of atoms and molecules changes, the properties of solids can also change.
In summary, when the arrangement of atoms in a substance changes, the properties of the substance can also change. Different arrangements of atoms have different chemical and physical properties.
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which best describes oogenesis?
Explanation:
Oogenesis can be defined as a process of differentiation of egg cell (ovum), into a mature ovum that further develops after fertilization. In humans, oogenesis begins in the early stage of embryonic development, during whcih primary oocyte performs meiosis I and forms secondary oocyte.
What can be found in the box on a periodic table?
In the box on a periodic table we can find its atomic number, symbol, average atomic mass, and (sometimes) name of the element.
By the 20th century, it was clear that atomic numbers, not atomic masses, were involved in the periodic relationship. The periodic law, a more recent formulation of this relationship, states that an element's properties are a periodic function of its atomic number.
The elements are arranged in a modern periodic table in increasing order of their atomic numbers, and atoms with comparable properties are grouped in the same vertical column (Figure below). With its atomic number, symbol, average atomic mass, and (sometimes) name, each box represents an element. The elements are grouped in 18 vertical columns called groups and seven horizontal rows known as periods or series.
Each column's header lists the names of its groups. Roman numerals and capital letters have traditionally been used on labels in the United States. The IUPAC advises using the digits 1 through 18, and these labels are more widely used. Parts of two of the rows, totaling 14 columns, are typically written below the table's main body in order for it to fit on a single page.
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Balance the equation
KCIO3–> O2+ KCI
Answer: 2KCIO3–> 3O2+ 2KCI
Explanation:
Explanation:
2KCLO3=3O2+2KC
hope this helps
A bike travels at a constant speed of 4.0 m/s for 5 s, how far does it go?
Answer:
20 meters
Explanation:
The bike is moving at a rate of 4 meters per second. In 5 seconds, the bike would have gone 20 meters
4 m/s x 5s = 20 m
Answer:
20 miles
Explanation:
(100 POINTS + BRAINLIEST) i don't know which subject this belongs to but this is an earth science class!!!
Tell the story of the life cycle of a star the size of our sun, Be sure to include all stages from "pre-birth" to death.
Describe the differences between our sun's life cycle to a star who is at least 5 times bigger than our sun.
The life cycle of a star the size of our sun starts with a nebula, a huge cloud of dust and gas. The gravity of the nebula compresses the cloud until the atoms fuse together, creating a star. This stage is known as pre-birth.
Next, the star enters a main sequence phase, where it shines brightly for millions of years, powered by nuclear fusion.
Eventually the star will slowly run out of hydrogen and the fusion process will become less and less efficient. The star will expand and become what is known as a red giant. This marks the end of the main sequence phase.
After this point, the star expels its outer layers, leaving behind a small, hot core called a white dwarf. It will continue to cool down until it becomes a black dwarf.
If the star is at least 5 times bigger than our sun, it will enter a different life cycle. After the red giant phase, the star will undergo a supernova explosion, which will spew dust and gas into the surrounding areas. These remainders will later form new stars, planets, and other cosmic bodies. What's left of the star will become a neutron star or a black hole.
Can someone help me with this question pls?
Explanation:
frequency = 1 wave/10s = 0.1 Hz
wavelength = 5.8 m
speed = wavelength × frequency
= (5.8 m)(0.1 Hz)
= 0.58 m/s
200. 00 grams of an organic compound is known to contain 83. 884 grams of carbon, 10. 486
grams of hydrogen, 18. 640 grams of oxygen and the rest is nitrogen. What is the
empirical formula of the compound?
An empirical formula is a type of chemical formula that shows the simplest ratio of elements present in a compound, rather than the total number of atoms.
What are Atoms?
Atoms are the smallest indivisible particles that make up all matter in the universe. They consist of a nucleus containing protons and neutrons, surrounded by a cloud of electrons. Atoms make up all elements, which are the building blocks for all other forms of matter.
Step 1: Calculate the atomic mass of carbon, hydrogen, oxygen, and nitrogen.
Carbon: 12.011 g/mol
Hydrogen: 1.008 g/mol
Oxygen: 15.999 g/mol
Nitrogen: 14.007 g/mol
Step 2: Convert the mass of each element to moles.
Carbon: 83.884 g / 12.011 g/mol = 6.983 mol
Hydrogen: 10.486 g / 1.008 g/mol = 10.381 mol
Oxygen: 18.640 g / 15.999 g/mol = 1.164 mol
Nitrogen: (200.00 g - (83.884 g + 10.486 g + 18.640 g)) / 14.007 g/mol = 6.871 mol
Step 3: Divide each mole value by the smallest mole value to obtain the simplest whole number ratio.
Carbon: 6.983 mol / 6.983 mol = 1
Hydrogen: 10.381 mol / 6.983 mol = 1.485
Oxygen: 1.164 mol / 6.983 mol = 0.167
Nitrogen: 6.871 mol / 6.983 mol = 0.985
The empirical formula of the compound is CHNO.
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What is the molar mass of (NH4)3PO4
Answer:
the molar mass of (NH4)3PO4 is 149.09 g/mol
ph before and after sulphuric acid is added
Answer:
added to what? base? if its added to base then it will increase in pH. H2S04(sulphuric acid is strong) so the pH is ard 3
The compound NaCl consists of 60.7% chlorine. How many grams of chlorine can be obtained from 49.6 grams of NaCl?
Answer:92.1g
Explanation:
This means that the reaction consumed4.004moles NaCl⋅2 moles Na2moles NaCl=4.004 moles NaConvert this to grams by using the element's molar mass4.004moles Na⋅22.99 g1mole Na=92.1 g
ASAP HELP PLZZZZ
Complete the sentence to show how the student makes sure that all the
acid reacts.
Choose the answer from the box.
[1 mark]
1) in excess
2) in solution
3) molten
4) soluble
The student adds copper oxide to the acid until the
copper oxide is ______
Answer:
1) in excess
Explanation:
Copper oxide is insoluble in water, while acid is soluble in water
There are 4 wavelengths that are emitted from a Hydrogen atom that can be seen by the human eye. Two of the wavelengths are the same color. What colors are they
Answer:
a) red, blue, and violet
b) orange, yellow, and green
C) red, orange, and yellow
D) blue, indigo, and violet
In the lab, the dominant phenotype for sheep color is wool and the recessive phenotype for sheep color is wool
The dominant phenotype for sheep color is wool because it is the most common color seen in sheep.
What do you mean by Phenotype?
Phenotype is the physical, biochemical, and physiological characteristics of an organism, as determined by both genetic makeup and environmental influences. It is the physical expression of an organism's genes, and can be seen in its morphology, development, and behavior.
Wool is usually white or off-white in color and is the result of a dominant gene. The recessive phenotype for sheep color is non-wool, which is usually a darker color, such as black, brown, or gray. This is the result of a recessive gene and is less common than the dominant gene.
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Define molarity of a solution.
Answer:
Molarity of a solution is defined as
the amount of a substance in a certain volume of solution or the moles of a solute per liters of a solution and also known as the molar concentration of a solution.
The units of molarity are M or mol/L
Define molarity of a solution.
Answer:Molar concentration or Molarity is a measure of the concentration of a chemical species, in particular of a solute in a solution, in terms of amount of substance per unit volume of solution.
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A 211-mL sample of a 0.285 M CaCl2 solution is left on a hot plate overnight; the following morning, the solution is 1.25 M. What volume of water evaporated from the 0.285 M CaCl2 solution
When a 211-mL sample of a 0.285 M CaCl₂ solution is left on a hot plate overnight and the following morning, the solution is 1.25 M, the volume of water evaporated from the 0.285 M CaCl₂ solution is 48.108 ml.
Molarity (M) is defined as the ratio of the number of moles of solute present in a solution to the volume of the solution in litres.
given here,
Molarity of the original solution(M₁) = 0.285M
Volume of the original solution(V₁) = 211 ml
Molarity of the solution in the morning (M₂) = 1.25 M
Volume of the solution in the morning (V₂) = ?
We will calculate the volume of the solution in the morning by using the formula:
M₁ × V₁ = M₂ × V₂
⇒0.285 M× 211 ml = 1.25 M × V₂
⇒V₂ = 0.285 M× 211 ml / 1.25 M
⇒V₂= 48.108ml
The volume of water evaporated from the 0.285M CaCl₂ solution is 48.108 ml.
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