a compound with formula c17h36 exhibits a h nmr spectrum how many signals are expected for c nmr
Answers
A compound with formula C17H36 exhibits a H NMR spectrum, and it is expected to have one signal for C NMR.
This is because the compound is an alkane, which means that it has only single bonds between the carbon atoms and all the hydrogen atoms are bonded to the carbon atoms. As a result, all the carbon atoms are in the same chemical environment, and therefore, only one signal is expected for C NMR.
In general, the number of signals in a C NMR spectrum corresponds to the number of different types of carbon atoms in the compound. If there are different types of carbon atoms, such as those bonded to different functional groups or in different bonding environments, then there will be multiple signals in the C NMR spectrum.
However, in the case of an alkane like C17H36, all the carbon atoms are in the same chemical environment, and therefore only one signal is expected.
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Related Questions
which of the following is most likely to be found as a prosthetic group. (select all that apply) group of answer choices nadph glucose fad nad atp
Answers
A prosthetic group is a non-protein molecule that is tightly bound to a protein and is essential for its biological activity. Out of the given options, FAD and NAD are most likely to be found as prosthetic groups.
FAD, or flavin adenine dinucleotide, is a coenzyme that is involved in redox reactions, and is often tightly bound to enzymes involved in these reactions. Similarly, NAD, or nicotinamide adenine dinucleotide, is a coenzyme involved in redox reactions and is commonly found as a prosthetic group in enzymes such as dehydrogenases. Glucose and ATP are not likely to be found as prosthetic groups as they are not tightly bound to proteins, but rather serve as substrates or energy sources for various enzymatic reactions.
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What is the ground state electron configuration for the He+2 ion? Select the correct answer below: (σ1s)2(σ∗1s)2 (π1s)2(π∗1s)2 (π1s)2(π∗1s)1 (σ1s)2(σ∗1s)1
Answers
The ground state electron configuration for the He+2 ion is (σ1s)²(σ∗1s)²
The He+2 ion is formed by removing two electrons from the helium atom, which has the electron configuration 1s².
The ground state electron configuration for the He+2 ion can be obtained by removing two electrons from the helium atom's electron configuration. Thus, the ground state electron configuration for the He+2 ion is:
(σ1s)²(σ∗1s)²
Here, the first two electrons occupy the bonding molecular orbital (σ1s), while the next two electrons occupy the corresponding antibonding molecular orbital (σ∗1s).
Therefore, the correct answer is (σ1s)²(σ∗1s)²
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Is it okay if you help me? I'm kind of in a tight spot here. Tysmmmmmmmmmmmmm o(❁´◡`❁)o!!
Answers
Answer:
Explanation:
My guess is option c
Which products are formed during the decomposition of magnesium nitride (mg3n2)? a. mg 3n2 b. 3mg 2n2 c. mg 3n d. 3mg n2 e. 2mg 3n
Answers
d. 3Mg and N₂
What is decomposition reaction?Compounds can disintegrate into simpler molecules or elements during decomposition processes.
The general decomposition reaction is given as:
AB → A + B
Extraction of metals from their ores is significant use of decomposition processes. For instance, by putting calamine through a breakdown reaction, zinc can be extracted. The same process can be used to make sodium from sodium chloride (NaCl).
Nitrogen and elemental magnesium gas will result from the breakdown of magnesium nitride.
Mg₃N₂ → 3Mg + N₂
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Identify the element that has a ground state electronic configuration of [Kr]5S^2 4d^5 ОТc O Nb O Ru O Mn
Answers
The element with the ground state electronic configuration of [Kr]5S² 4d⁵ is Ruthenium (Ru).
How is Ruthenium's ground state electronic configuration determined?Ruthenium (Ru) is the element that has a ground state electronic configuration of [Kr]5S² 4d⁵ .
This configuration indicates that in its lowest energy state, Ruthenium has all its inner electron shells filled up to the Kr (Krypton) element with atomic number 36.
The configuration then continues with 5S² , indicating that there are two electrons in the 5s orbital. Following that, 4d⁵ signifies that there are five electrons in the 4d orbital.
Ruthenium is a transition metal with atomic number 44 and belongs to the platinum group of elements. It exhibits a wide range of oxidation states and is known for its catalytic properties. It is a hard, lustrous, silvery-white metal and is corrosion-resistant.
Ruthenium finds applications in various fields, including electronics, jewelry, and the chemical industry.
Its unique combination of physical and chemical properties makes it valuable for numerous industrial and scientific purposes.
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name three chemical reactions in which heat is evolved and three chemical reactions in which heat is absorbed.
Answers
Answer: Exothermic: combustion, condensation, neutralization. Endothermic: photosynthesis, evaporation, ionic dissociation of salts
Explanation:
Place whole number coefficients in the blanks to balance the
chemical reaction.
CuSO4
Zn -->
ZnSO4+
Cu
Answers
Answer:
all places 1 is the answer
Explanation:
please mark me as brainlest
1. a manufacturing process uses 100 kg/month of solvent s to clean machine parts. solvent s is volatile and 15% of the amount used is lost to the atmosphere. 40% is recovered for recycling each month. the remainder leaves the plant in wastewater. what is the average concentration in the wastewater if the average flow is 10 m3/d? (5 pts) g
Answers
The average concentration of wastewater is 168 kg/m³.
The consumption of solvent per day = 100 kg/30 days
The consumption of solvent per day = 10/3 kg/day
Amount lost = 10/3×15/100
Amount lost = 0.5
Remaining amount of solvent = 3.3 - 0.5
Remaining amount of solvent = 2.8 kg/day
Recovered amount = 2.8×40/100
Recovered amount = 1.12 kg/day
Remaining amount of solvent = 2.8 - 1.12
Remaining amount of solvent = 1.68 kg/day
So, 1.68kg/day is received by wastewater. As 1 kg is 1000 gram. Thus, 1.68 kg is 1680 grams Concentration in wastewater = 1680/10
Concentration in wastewater = 168 kg/m³
Hence, the concentration in wastewater is 168 kg/m³.
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a sample of an ideal gas has a volume of 2.28 l2.28 l at 278 k278 k and 1.10 atm.1.10 atm. calculate the pressure when the volume is 1.49 l1.49 l and the temperature is 302 k
Answers
The pressure when volume is 1.49 L and the temperature is 302 K, the pressure is 1.60 atm.
To calculate the pressure when the volume is 1.49 L and the temperature is 302 K, we can use the ideal gas law equation:
PV = nRT
Where:
P = pressure
V = volume
n = number of moles of gas
R = ideal gas constant
T = temperature
In this case, we need to find the pressure (P). We already have the initial volume (V ₁= 2.28 L), initial temperature (T₁ = 278 K), and initial pressure (P1 = 1.10 atm).
To begin, we can find the number of moles of gas (n) using the formula:
n = PV / RT
First, we calculate the number of moles (n₁) at the initial conditions:
n₁ = (P₁ × V₁) / (R × T₁)
Now, we can use the ideal gas law equation to find the pressure at the new volume and temperature:
P ₂= (n₁ × R × T₂) / V₂
Substituting the known values:
P₂ = (n₁ × R × T₂) / V₂
We can now plug in the values:
P₂ = ((P₁ × V₁) / (R × T₁)) × (R × T₂ / V₂)
Since R is the ideal gas constant, we can cancel it out:
P₂ = (P₁ × V₁ × T₂) / (T₁ × V₂)
Now, we can substitute the given values into the equation:
P₂ = (1.10 atm × 2.28 L × 302 K) / (278 K × 1.49 L)
P₂ ≈ 1.60 atm
Therefore, when the volume is 1.49 L and the temperature is 302 K, the pressure is approximately 1.60 atm.
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An iron wire (density = 7.87 g/cm³) has a diameter of 0.20 mm. If a sample of this iron wire has a mass of 21 g, how long is this
wire?
Answers
The length of the iron wire is 2077 cm.
How long is the wire?We have to note that the length of the wire is the thing that we are supposed to obtain in this question. We must note that the density of the object is the ratio of the mass to the volume of the object.
In this case, we need to first find the area of the iron wire from;
A = πr^2
A = A rea of the circle
r = radius of the circle
A = 3.142 * (0.2 * 10^-1)^2
A = 1.3 * 10^-3 cm^2
Now;
Density = mass/volume
Volume = Mass/ Density
Volume = 21 g/7.87 g/cm³
= 2.7 cm^3
Then volume = Area * length
Length = Volume/Area
Length = 2.7 cm^3/ 1.3 * 10^-3
= 2077 cm
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How many liters of water do we need to add to 5.00 moles to get a 0.648 M solution?
Answers
Answer: This is a typical acid/base equilibrium problem, that involves the use of logarithms.
Explanation:We assume that both nitric acid and hydrochloric acid dissociate to give stoichiometric
H
3
O
+
.
Moles of nitric acid:
26.0
×
10
−
3
⋅
L
×
8.00
⋅
m
o
l
⋅
L
−
1
=
0.208
⋅
m
o
l
H
N
O
3
(
a
q
)
.
And, moles of hydrochloric acid:
88.0
×
10
−
3
⋅
L
×
5.00
⋅
m
o
l
⋅
L
−
1
=
0.440
⋅
m
o
l
H
C
l
(
a
q
)
.
This molar quantity is diluted to
1.00
L
. Concentration in moles/Litre =
(
0.208
+
0.440
)
⋅
m
o
l
1
L
=
0.648
⋅
m
o
l
⋅
L
−
1
.
Now we know that water undergoes autoprotolysis:
H
2
O
(
l
)
⇌
H
+
+
O
H
−
. This is another equilibrium reaction, and the ion product
[
H
+
]
[
O
H
−
]
=
K
w
. This constant,
K
w
=
10
−
14
at
298
K
.
So
[
H
+
]
=
0.648
⋅
m
o
l
⋅
L
−
1
;
[
O
H
−
]
=
K
w
[
H
+
]
=
10
−
14
0.648
=
?
?
p
H
=
−
log
10
[
H
+
]
=
−
log
10
(
0.648
)
=
?
?
Alternatively, we know further that
p
H
+
p
O
H
=
14
. Once you have
p
H
,
p
O
H
is easy to find. Take the antilogarithm of this to get
[
O
H
−
]
.
Answer link
Please Help!!
A 25.0-mL sample of H2SO4 is neutralized by 27.4 mL of
1.00M KOH. What is the concentration of the acid?
Answers
To calculate concentration we use -
\( \:\:\:\:\:\:\:\:\:\:\:\star\longrightarrow \sf \underline{C=\dfrac{n}{V}}\\\)
\( \:\:\:\:\:\:\:\:\:\:\:\star\longrightarrow \sf \underline{n = C\:V}\\\)
Where -
C is the molar concentrationn is the number of moles V is the volume of the solutionWe are given the volume and the concentration of the KOH. Using those information, we can calculate the moles of KOH.
Given data:-
Volume of KOH, V= 27.4mL = 27.4×10⁻³ L
\(\star\)Concentration of KOH, C= 1 M
\( \:\:\:\:\:\:\longrightarrow \sf Moles \:of \:KOH = C\:V\\\)
\( \:\:\:\:\:\:\longrightarrow \sf Moles \:of \:KOH = 1\times 27.4 ×10⁻³\\\)
\( \:\:\:\:\:\:\longrightarrow \sf Moles \: of \: KOH = 0.0274 \\\)
The neutralization reaction is expressed as:-
\( \star\longrightarrow \sf\underline{ \pink{2KOH} + \pink{H_2SO_4} = K_2SO_4 + 2H_2O}\\\)
According to this reaction, 2 moles of KOH reacted with 1 mole of H₂SO₄.Therefore, 0.0274 mole of KOH would also react with (0.0274/2)=0.0137 mole of H₂SO₄.
\( \:\:\:\:\:\:\longrightarrow \sf Concentration\: of\: H₂SO₄ =\dfrac {Moles\:of\:H₂SO₄}{ Volume \: of \: H₂SO₄}\\\)
\( \:\:\:\:\:\:\longrightarrow \sf Concentration\: of\: H₂SO₄ =\dfrac {0.0137}{ 25×10⁻³ }\\\)
\( \pink{\because\sf \underline{ Volume\: of \: H₂SO₄= 25 mL = 25×10⁻³ L}}\\\)
\( \:\:\:\:\:\:\longrightarrow \sf Concentration\: of\: H₂SO₄ =\dfrac {0.0137}{ 0.025 }\\\)
\( \:\:\:\:\:\:\longrightarrow \sf \underline{Concentration\: of\: H₂SO₄ = 0.548\: M}\\\)
Therefore, the concentration of H₂SO₄ is 0.548M.
Atomic radii decrease, moving from left to right across a period. As a result, the electrons become closer to the nucleus. What effect does this movement have on the ionization energy (the amount of energy required to remove an electron from an atom)? The ionization energy stays the same. The ionization energy decreases. The ionization energy increases. Electrons have no effect on ionization energy.
Answers
Answer:
The ionisation energy increases.
Explanation:
This is because the force of attraction between the electrons and the positive nucleus will increase
whose law explains why a gas will move from one area to another area
Answers
The law that explains why a gas will move from one area to another area is Graham’s law. Graham's law of effusion is also known as Graham's law of diffusion, Graham's law of diffusion and effusion, and Graham's law of gaseous diffusion.
What is Graham's Law?Graham's law refers to the diffusion or effusion of gases. The rate of diffusion of a gas is inversely proportional to the square root of its molar mass. This law is known as the Graham's Law of Diffusion. This law was first formulated by Thomas Graham, a Scottish chemist, in 1831.
Graham's Law can be mathematically expressed as:
v1/v2 = √M2/M1
where:
v1/v2 is the ratio of the diffusion rates of two gases
M1 is the molar mass of gas 1
M2 is the molar mass of gas 2
The above equation can be used to compare the rates of diffusion of two gases. The lighter the gas, the faster it will diffuse, according to the equation. The gas with the smallest molar mass diffuses the fastest.
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Name 3 types of rock on Planet Earth.
Answers
Answer:
igneous, sedimentary, and metamorphic
Explanation:
Answer:
IGNEOUS ROCKS form when molten rock (magma or lava) cools and solidifies. SEDIMENTARY ROCKS originate when particles settle out of water or air, or by precipitation of minerals from water.
And METAMORPHIC (I dont have nothing for this won)
Explanation:
HELPPPPPPPPPP! I WILL GIVE FREE BRAINLIST!
Answers
Answer:
21%
Explanation:
nitrogen takes up more than half so it can't be the 2 biggest answers cause both are more than 50 and the smallest answer would have to be for the little sliver of the pie chart
Answer: 21%
Explanation:
Question 1 What is the disposal procedure for the organic waste generated in step 2 of Part B? Not yet answered Select one: Points out of 1.00 a. Throw the waste directly into the organic waste container. p Flag question b. Throw all contents down the drain with copious amounts of water. C. Remove the aqueous layer with a disposable pipet and rinse the remaining contents into the dithizone/chloroform/acetone waste container using acetone. Question 2 What is the purpose of filling a clean centrifuge tube with deionized water and placing it in the centrifuge directly across from your single sample of precipitate? Not yet answered Points out of 1.00 Select one: p Flag question a. It distributes the weight equally around the centrifuge to prevent destructive wobbling. b. It prevents contamination of the sample. c. a and b. Question 3 Not yet answered Which of the following ions from among those of the eight metals K, Ca, Cr, Mn, Fe, Co, Ni, Zn, will not be reacted with NaOH and hydrogen peroxide in separate test tubes in the first part of this experiment? Points out of 1.00 Select one: p Flag question a. K*(aq) and Ca(aq) b. Cr3+(aq) and Co2+ (aq) 2+ (aq) and Zn(aq) C. Ni2+
Answers
Question 1: option c) is the correct answer ; Question 2: option c, "a and b" is incorrect ; Question 3: Ion that will not be reacted with NaOH and hydrogen peroxide in separate test tubes in the first part of this experiment is Ni2+.option C is correct.
Question 1: The disposal procedure for the organic waste generated in step 2 of Part B is to remove the aqueous layer with a disposable pipet and rinse the remaining contents into the dithizone/chloroform/acetone waste container using acetone. This ensures that the waste is disposed of properly and does not harm the environment.
Question 2: The purpose of filling a clean centrifuge tube with deionized water and placing it in the centrifuge directly across from your single sample of precipitate is to distribute the weight equally around the centrifuge to prevent destructive wobbling. This also prevents contamination of the sample. Therefore, option c, "a and b" is incorrect.
Question 3: The ion that will not be reacted with NaOH and hydrogen peroxide in separate test tubes in the first part of this experiment is Ni2+. This is because Ni2+ does not form a precipitate with NaOH and does not react with hydrogen peroxide. Therefore, option C is correct.
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Substance that increases [h ] and decreases ph when it dissociates in water is called a(n)?
Answers
The substance that increases [H+ ] and decreases pH when it dissociates in water is called an acid.
What are acids?Acids are substances that have lower than seven pH. They are sour in taste, and they dissociate into H+ ions in the water when dissolved in water. A strong acid is a hydrochloric acid, a weak acid is a nitric acid.
They have no electrons, just protons. They turn blue litmus paper to red. Furthermore, they react with metals to form hydrogen, and they react with a base to form salts.
Thus, the substance that decreases the pH when mixed with water is acid.
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Is it possible to prepare chlorine in lab without application of heat?
Answers
Answer:
i think it will explode
how are solar eruptions influenced by the sunspot cycle
Answers
changes in the Sun's magnetism produce a greater number of sunspots, more energy and cause solar eruptions of particles
Chromosomes _____. (Choose all that apply)
1.) Are tightly coiled bundles of DNA
2.) Carry many genes
3.) Are found inside the nucleus of eukaryote
4.) Can be used to diagnose genetic disorders
5.) Outnumber genes in a cell
Answers
Answer:
1.) Are tightly coiled bundles of DNA
2.) Carry many genes
3.) Are found inside the nucleus of eukaryote
4.) Can be used to diagnose genetic disorders
Explanation:
A chromosome is a thread-like structure made up of DNA. The chromosomes are made of DNA which are tightly coiled around protein.
Chromosomes carry hundreds and thousands of genes. The number of genes in a cell outnumbers the number of chromosomes.
In eukaryotic cells, all the chromosomes are found inside the nucleus of eukaryote.
The chromosomes and DNA can be examined so as to diagnose genetic disorders.
A 15.50 gram sample of a gas exerts a pressure of 1.40 atmospheres when held in an 8.00 liter at 22 °C. What is the molar mass (grams/mol) of the gas?
Answers
Answer:
33.5 g/mol
Explanation:
PV=nRT
(1.40 atm)(8.00 L)=n(0.08206)(295 K)
n=0.463 mol
15.50 g/0.463 mol=33.5 g/mol
2.00 g of helium gas, he (g), and 8.00 g of oxygen gas, o2 (g), are mixed together in a container, and the total pressure is measured to be 1.00 atm. what is the partial pressure of the helium gas in the container?
Answers
The saturation pressure of both the compressed gas is 12.2 atm, as stated in the statement.
Is helium really that scarce on Earth?The second most frequent element in the cosmos is helium, yet it is rather seldom on Earth. It also plays a remarkable role in a variety of fields, including quantum computing and space travel.
Briefing:According to Dalton's Law in Relative Pressures, a components gas's partial pressure in a vapour is proportional to the quantity it would produce if it were the only gas present in the container.
Additionally, we may calculate the pressure using the Ideal Gas equation:
\(P=\frac{n R T}{V}\)
\($$P_{H e}=\frac{\frac{2.00 \cdot \mathrm{g}}{4.00 \cdot \mathrm{g} \cdot \mathrm{mol}-1} \times 0.0821 \cdot \frac{L \cdot \mathrm{atm}}{K \cdot \mathrm{mol}} \times 298 K}{1.00 \cdot L} \cong 12.2 \mathrm{atm} .$$\)
Therefore, 12.2 atm is the initial concentration of the helium gas.
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PLEASE ANSWER I GIVE BRAINLIEST AND MAX POINTS
Answers
Answer:
I believe the answer is A (changes in air temperature result in differences in air pressure which causes wind). Hope this helps
Explanation:
What happens when two or more chemical, react with eachother
Answers
Answer:
They creat a chemical compound
Explanation:
The 2 chemicals will converge and create a chemical compound (or a different element) .
SHOW WORK
The distance from the Earth to the Moon is 238,900 mi. What is the distance in inches?
Answers
The distance from the Earth to the Moon is 15147984000 inches.
The given distance between Earth and Moon is 238,900 miles. We need to convert miles to inches to find the distance in inches.1 mile is equivalent to 63,360 inches. By multiplying the distance in miles by 63,360 we can find the distance in inches.
Hence, the distance from Earth to the Moon is found by multiplying 238900 miles with 63,360 inches/mile which equals 15,147,984,000 inches.
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A temperature change of 51 deg * C would be equivalent to a temperature change of
Answers
i don't know if you mean C° to F° but in F° the change would be 123.8°
the volume of water in a 100 ml graduated cylinder was recorded by several student in a group. their recorded volumes are similar, but vary by 0.01 ml
Answers
The volume of water in a 100ml graduated cylinder was recorded by several students in a group . thier recorded volumes are similar , but vary by 0.01 ml , this variation shows the uncertainty in measurements.
Uncertainty is defined as the quantification of the doubt about the measurement result. Error is the difference between a measurement result and the measured value and uncertainty describes the reliability of assertion that stated measurement result represents value of measured.
The marking on a 100 ml of graduated cylinder are every 1 ml . so the volume can be measured to the accuracy of ±0.01 ml .
Thus,The volume of water in a 100ml graduated cylinder was recorded by several students in a group . thier recorded volumes are similar , but vary by 0.01 ml , this variation shows the uncertainty in measurements.
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HELPPPPP MEEEEEE WILL OFFER BRAINLIEST
1. Which graph represents the endothermic reaction?
2. Which graph represents the exothermic reaction?
Answers
Answer:
A is endothermic, B is exothermic.
Explanation:
I actually just looked at the bottom of the graph. Endothermic reactions absorb energy, but exothermic reactions release it. Hope this helped!
A solution is made by dissolving 1 g of hydrogen chloride in 1 dm³ of water. Which is the correct description of this solution"> Tick () one box. A concentrated solution of a strong acid A concentrated solution of a weak acid A dilute solution of a strong acid A dilute Solution of a weak acid
Answers
Answer: A concentrated solution of a strong acid
Explanation: The definition of a concentrated solution is one in which there is a large amount of solute relative to the solvent. In this case, there is 1 g of hydrogen chloride dissolved in 1 dm³ of water, meaning that it is a concentrated solution. Additionally, because hydrogen chloride is a strong acid, the entire molecule will dissociate into ions when added to water.