Answers
Answer:
For a: The IUPAC name of the compound is N-ethylethaneamide.
For b: The IUPAC name of the compound is N,N-diethylmethaneamide.
For c: The IUPAC name of the compound is ethyl pentanoate
Explanation:
To name a compound, first look for the longest possible carbon chain.
For a:Amide group is a type of functional group where an amine group is attached to a carbonyl group. The general formula of amide is [tex]R-CO-NH_2[/tex], where R is an alkyl or aryl group.
In part (a), the alkyl group has 2 carbon atoms and thus, the prefix used is 'eth-'
Also, an ethyl substituent is directly attached to N-atom. It is an alkane structured hydrocarbon thus, the suffix used will be '-ane'
Hence, the IUPAC name of the compound is N-ethylethaneamide.
For b:Amide group is a type of functional group where an amine group is attached to a carbonyl group. The general formula of amide is [tex]R-CO-NH_2[/tex], where R is an alkyl or aryl group.
In part (b), the alkyl group has 1 carbon atoms and thus, the prefix used is 'meth-'
Also, two ethyl substituents are directly attached to N-atom. It is an alkane structured hydrocarbon thus, the suffix used will be '-ane'
Hence, the IUPAC name of the compound is N,N-diethylmethaneamide.
For c:Esters are a kind of organic molecules having functional groups, [tex]R-COO-R'[/tex] where R and R' are the alkyl or aryl groups. They are formed by the combination of alcohol and carboxylic acid.
These functional group compounds are named in two words which is alkyl alkanoates, where alkyl refers to the alcoholic part and alkanoate refers to the carboxylic acid part of the molecule. The numbering of the parent chain in esters is done from the carboxylic carbon. The alkyl part is not given any numbers.
In part (c), there are 5 carbon atoms present in a straight chain and thus, the prefix used is 'pent-'
Also, an ethyl group forms the alcoholic part.
Hence, the IUPAC name of the compound is ethyl pentanoate
Related Questions
What is the molar mass of H2SO4?
(Molar mass of H = 1.0079 g/mol; S = 32.065 g/mol; O = 15.999 g/mol)
Answers
Answer: 98.08 g/mol
Explanation:
i just took this test and got it right
Answer:
A
Explanation:
A solution of carbonic acid is at equilibrium. How would the system change is more carbonic acid was added to the solution
Answers
Answer:
The equilibrium position shifts to the right, in accordance to the constraint principle
Determine the total kilojoules in two tablespoons of crunchy peanut butter that contains 2 g of carbohydrate, 15 g of fat, and 9 g of protein.
Answers
Answer:
The correct answer is -749.437 Kilojoules
Explanation:
In the case of nutrition, Kcal and cal are equal and each macromolecule produces a specific amount of energy in terms of calories. Carbohydrates and protein generate 4 kcal whereas fat generates 9 kcal per gram.
1 g of carbohydrate = 4 kcal
so, 2 gram of carbohydrate = 8 kcal
9 g of protein = 9*4
= 36 kcal
15 g of fat = 15*9
= 135 kcal
in total = 135 + 36 + 8 kcal
= 179 kcal
and, one kcal = 4.186798 kJ
so 179 kcal = 4.186798 * 179
= 749.437 Kilojoules
If I contain 3 moles of gas in a container with a volume of 60 liters and at a temperature of 400 K, what is the pressure inside the container in mmHg?
Answers
Answer:
n = 3.0 moles
V = 60.0 L
T = 400 K
From PV = nRT, you can find P
P = nRT/V = (3.0 mol)(0.0821 L-atm/K-mol)(400 K)/60.0L
P = 1.642 atm = 1.6 atm (to 2 significant figures)
Explanation:
how many grams of oxygen are required to reach with 0.125 moles of zinc sulfide?
Answers
Answer:
6 g of O₂
Explanation:
We'll begin by writing the balanced equation for the reaction. This is illustrated below:
2ZnS + 3O₂ —> 2ZnO + 2SO₂
From the balanced equation above,
2 moles of ZnS reacted with 3 moles of O₂.
Next, we shall determine the number of mole of O₂ required to react with 0.125 mole of ZnS. This can be obtained as follow:
From the balanced equation above,
2 moles of ZnS reacted with 3 moles of O₂.
Therefore, 0.125 mole of ZnS will react with = (0.125 × 3)/2 = 0.1875 mole of O₂.
Thus, 0.1875 mole of O₂ is needed for the reaction.
Finally, we shall determine the mass of 0.1875 mole of O₂. This can be obtained as follow:
Mole of O₂ = 0.1875 mole
Molar mass of O₂ = 2 × 16 = 32 g/mol
Mass of O₂ =?
Mass = mole × molar mass
Mass of O₂ = 0.1875 × 32
Mass of O₂ = 6 g
Therefore, 6 g of O₂ is required for the reaction.
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A solution has a [H3O+] of 1 × 10−3 M. What is the [OH−] of the solution?
11 M
14 M
1 × 10−14 M
1 × 10−11 M
Answers
Answer:
1 × 10−11 M
Explanation:
I took the test :) guy above me is right
Score! You manage to find a bottle of bromothymol blue and a few extra beakers. You take one of the empty beakers and add some of the first unlabeled solution and some indicator. The color changes to yellow. You then add some solution from the other unlabeled flask into this beaker and see the color change to blue. What are the identities of each unlabeled solution
Answers
Answer:
You manage to find a bottle of bromothymol blue and a few extra beakers. You take one of the empty beakers and add some of the first unlabeled solution and some indicator.
The color changes to yellow.
You then add some solution from the other unlabeled flask into this beaker and see the color change to blue.
What are the identities of each unlabeled solution?
Explanation:
Bromothymol blue is a dye and it is used as an indicator.
It is used as a pH indicator.
In acids, it becomes yellow n in color.
In bases, it turns blue.
You take one of the empty beakers and add some of the first unlabeled solution and some indicator. The color changes to yellow.
That means the unlabeled solution is an acid.
You then add some solution from the other unlabeled flask into this beaker and see the color change to blue.
It is a basic solution.
(vi) A solvent extraction in which two ...... liquids move in opposite directions in
continuous contact with each other.
(a) immiscible (b) miscible (c) polar
(d) non-polar
Answers
Answer:
(A). Immmiscible
Liquid/Liquid extraction is a solvent extraction in which two immiscible liquids move in opposite directions are in continuous contact with each other.
Explanation:
A liquid/liquid extraction is a method used to separate mixtures based on relative solubilities in two immiscible liquids, i.e., liquids that do not dissolve in each other but rather form separate layers when placed in the same glassware.
The immiscibility of the liquids is as a result of the two liquids having different polarities. One liquid is polar while the other is non polar, usually water which is polar and an organic solvent which is non-polar. The most common pair of extraction solvents used is diethyl ether or simply ether and water. They separate into layers and the position most each solvent in either the bottom or top layer is determined by its density. Ether is always found on the top layer while water is found innthe bottom layer because ether is less than than water. The density of ether is 0.713 g/cm3 and the density of H2O is 1.0 g/cm3.
The compound to be extracted dissolves into either of the layers based on the principle that like dissolves like. Polar compounds will dissolve into the water layer while organic nor non-polar compounds will dissolve in the ether layer. The compound is the extracted from either of the layer it is dissolved in.
What's the purpose for a graduated cylinder
Answers
Answer:
Graduated cylinders are long, slender vessels used for measuring the volumes of liquids. They are not intended for mixing, stirring, heating, or weighing. Graduated cylinders commonly range in size from 5 mL to 500 mL.
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A 59.0 mL portion of a 1.80 M solution is diluted to a total volume of 258 mL. A 129 mL portion of that solution is diluted by adding 183 mL of water. What is the final concentration
Answers
Answer:
0.170 M
Explanation:
As this is a series of dilutions, we can continuosly use the C₁V₁=C₂V₂ formula to solve this problem:
For the first step:
59.0 mL * 1.80 M = 258 mL * C₂C₂ = 0.412 MThen for when 129 mL of that 0.412 M are diluted by adding 183 mL of water:
V₂ = 129 mL + 183 mL = 312 mLUsing C₁V₁=C₂V₂:
129 mL * 0.412 M = 312 mL * C₂C₂ = 0.170 M9) Determine the end (final) value of n in a hydrogen atom transition, if the electron starts in and the atom emits a photon of light with a wavelength of 486 nm.
Answers
Which statements correctly describe the relationship between the event and its effect on energy inputs and outputs?
A. The eruption of a volcano increases the concentration of particles in the atmosphere, which decreases the amount of energy that can reach Earth from the Sun in the short term.
B. Burning fossil fuels decreases the concentration of greenhouse gases in the atmosphere, which decreases the amount of heat that reflects back to Earth's surface.
C. Changes in Earth's orbit periodically increase the amount of solar energy reaching Earth from the Sun, which raises temperatures.
Answers
Answer:
They Are All Very Good Statements But I Will Go With "A"
Explanation:
I go with "A" Because In The statement it has a cause an effect, it has a positive term and a negative term, in other uses it is "A" between energy inputs and outputs, and events.
The statement that correctly describes the relationship between the event and its effect on energy inputs and outputs is Option A .
What is Energy ?Energy is defined as the capacity to do work .
There are various types of Energy , Light Energy , Sound Energy , Solar Energy , Wind Energy etc .
Volcanic eruptions emit huge amounts of volcanic dust, sulfur compounds and water vapor into the atmosphere .
This reduces the atmospheric transparency and that results into causing hindrance to the solar radiation penetration in the earth's surface ,
This results in short term cooling effect over large areas of earth.
Among all the statements , Option A , The eruption of a volcano increases the concentration of particles in the atmosphere, which decreases the amount of energy that can reach Earth from the Sun in the short term , correctly describe the relationship between the event and its effect on energy inputs and outputs.
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One atom of chromium (Cr) has a mass of 52.00 amu. How many chromium atoms does it take to equal a mass of 52.00 g?
Answers
1 chromium atom
Explanation:
number of (Cr) atom =
[tex] \frac{mass \: of \: cr}{molar \: mass \: (amu)} [/tex]
n = m/M
n = 52/52
n= 1g
Define electronegativity
Answers
Answer: Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons.
Explanation: Hope this helps!
How many liters of water would you need to add to 4.36 moles of NaCl to create a 9.4 M solution?
Answers
Answer:
0.464 L
Explanation:
Molarity (M) = number moles (n) ÷ volume (V)
According to the information given in this question:
number of moles (n) = 4.36 moles
Molarity = 9.4M
Volume = ?
Using M = n/V
9.4 = 4.36/V
9.4V = 4.36
V = 4.36/9.4
V = 0.464 L
Hence, 0.464L of water are needed the volume of water.
Explain how our body systems work together to get oxygen into and around our body.
Answers
Answer: (1) Inhales (breathes in) Oxygen - good for the body - gives it to the Circulatory System to be transported throughout the body through the blood. (1) Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries those nutrients where they need to go.
The pH of a 0.0001 M NaOH solution is (note: For strong bases such as NaOH, the hydroxide ion concentration is the same as the concentration
of the base)
10
5
а
Ob
о с
Od
3
8
Answers
Answer:
pH = 10
Explanation:
As the problem states, with strong bases the hydroxide ion concentration [OH⁻] is equal to the concentration of the base. That means that in this case:
[OH⁻] = 0.0001 MWith [OH⁻] we can calculate the pOH of the solution:
pOH = -log[OH⁻]pOH = 4Then with the pOH, we calculate the pH of the solution:
pH = 14 - pOHpH = 10Which of the following statements is NOT true?
A.) When HX adds to an asymetrical alkene, the SP2 carbon bonded to the most H atoms is protonated.
B.) When HX adds to an asymetrical alkene, protonation leads to the most stable carbocation intermediate.
C.) When HX adds to a symetrical alkene, either of the SP2 carbons can be protonated.
D.) When HX adds to an asymetrical alkene, the halogen attaches to the least substituted SP2 carbon.
Answers
Answer:
D.) When HX adds to an asymmetrical alkene, the halogen attaches to the least substituted sp² carbon.
Explanation:
Which of the following statements is NOT true?
A.) When HX adds to an asymmetrical alkene, the sp² carbon bonded to the most H atoms is protonated. TRUE. This is known as Markovnikov's rule.
B.) When HX adds to an asymmetrical alkene, protonation leads to the most stable carbocation intermediate. TRUE. The order of stability of carbocations is tertiary > secondary > primary.
C.) When HX adds to a symmetrical alkene, either of the sp² carbons can be protonated. TRUE. Since the alkene is symmetrical, either carbon can be protonated.
D.) When HX adds to an asymmetrical alkene, the halogen attaches to the least substituted sp² carbon. FALSE. The halogen attaches to the most substituted sp² carbon.
How do you determine the mass number of an atom?
Answers
Explanation:
The number of protons and neutrons. you can simply subtract the number of protons, or atomic number, from the mass number to get your final answer.
what temperature is absolute zero
Answers
What happens te energy in an open system
A Energy can ex but not enter an open system,
B Energy cannot enter or exit an open system
6. Energy can enter but not exit an open system,
D Energy can enter er alt an open system
Answers
Answer:
A
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Cuanto equivale 1000 yardas a 1 pie, 1 metro y 1 centímetro
Answers
Respuesta:
3000 ft
914.4 m
9.144 × 10⁴ cm
Explicación:
Paso 1: Información provista
Longitud: 1000 yd
Paso 2: Convertir 1000 yd a pies (ft)
Usaremos el factor de conversion 1 yd = 3 ft.
1000 yd × 3 ft/1 yd = 3000 ft
Paso 3: Convertir 1000 yd a metros (m)
Usaremos el factor de conversion 1 yd = 0.9144 m.
1000 yd × 0.9144 m/1 yd = 914.4 m
Paso 4: Convertir 914.4 m a centimetros (cm)
Usaremos el factor de conversion 1 m = 100 cm.
914.4 m × 100 cm/ 1 m = 9.144 × 10⁴ cm
I first want you to tell me why having a homogenous sample is good but also why it is bad. That is, what are the advantages and disadvantages to having a homogenous sample
Answers
Answer:
Following are the responses to the given question:
Explanation:
In many analyses, the homogenous sample with only a particular identity group is desired. Units were picked here depending on their similar characteristics so because research is specifically interested in these qualities. The downside of a homogeneous sample is nevertheless that the exterior validity of a study is decreased. In other words, any results obtained could be appropriately widespread to the general population. On either hand, a heterogeneous sample is capable of overcoming this difficulty, because its diversity is the typical pattern of any sort of sample distortion inside the broader population.
Metallic bonds form between what kinds of atoms?
Answers
Answer: A metallic bond is a type of chemical bond formed between positively charged atoms in which the free electrons are shared among a lattice of cations. In contrast, covalent and ionic bonds form between two discrete atoms. Metallic bonding is the main type of chemical bond that forms between metal atoms.
Explanation:
NOT MY WORDS! I HOPE THIS HELP!!!!!
Answer: Positive charged atom
Explanation: A metallic bond is a type of chemical bond formed between positively charged atoms in which the free electrons are shared among a lattice of cations.
A 0.2264 g sample of a pure carbonate, XnCO3(s) , was dissolved in 50.0 mL of 0.1800 M HCl(aq) . The excess HCl(aq) was back titrated with 24.90 mL of 0.0980 M NaOH(aq) . How many moles of HCl react with the carbonate
Answers
Answer:
6.56x10⁻³ mol
Explanation:
First we calculate how many HCl moles are there in 50.0 mL of a 0.1800 M solution:
0.1800 M * 50.0 mL = 9.00 mmol HClThen we need to calculate how many HCl moles were in excess, that number is the same as the number of NaOH moles they reacted with:
0.0980 M * 24.90 mL = 2.44 mmol NaOH = 2.44 mmol HClFinally we calculate the difference between the original number of HCl moles and the number remaining after the reaction with XnCO₃:
9.00 mmol - 2.44 mmol = 6.56 mmol6.56 mmol / 1000 = 6.56x10⁻³ molGive the corresponding electron configurations for following element atoms, their valence electrons, and their ions, respectively.
a. P
b. Sa
c. Ni
d. Br
e. O
Answers
Answer:
Explanation:
Element Electron configuration Valence electron Ion
for atom configuration
P 1s²2s²2p⁶3s²3p³ 3s²3p³ P⁵⁺
Sn 1s²2s²2p⁶3s²3p⁶4s²
3d¹⁰4p⁶4d¹⁰5s²5p² 5s²5p² Sn⁴⁺
Ni 1s²2s²2p⁶3s²3p⁶4s² 4s²3d⁸ Ni²⁺
3d⁸
Br 1s²2s²2p⁶3s²3p⁶4s² 4s²4d⁵ Br⁻
3d¹⁰4p⁵
O 1s²2s²2p⁴ 2s²2p⁶ O²⁻
An atom's electron configuration is a depiction of the distribution of electrons amongst the orbital shells as well as subshells. The electron configuration is frequently used to define an atom's orbitals in its ground state, but it may also be used to depict an atom which has ionized into a negatively charged ion or positively charge ion by accounting for electron loss or gain in succeeding orbitals. Many of an element's physical and chemical features can be linked to its distinct electron configuration. The distinctive chemistry of the element is determined by the valence electrons, which are electrons in the outermost shell.
You have a container of 5L with a Molarity of 0.750. What would be the new volume if you diluted the solution to have a concentration of 9.71M?
Answers
Answer:
=64.73..
Explanation:
0.750=5L
9.71=x
0.750*x÷0.750=5L*9.71÷0.750
x=48.55÷0.750
x=64.73..
A brand of dish soap says that it will get your dishes cleaner. What is the
purpose of this claim?
A. To make the product less expensive
B. To prove that the product works
C. To get you to buy the product
D. To provide an impartial source
Answers
Answer:
B
Explanation:
Si no demuestra que funciona te estarían estafando
How many molecules are contained in 52.5 moles of C2H6?
please explain if you can
Answers
Answer:
3.16x10²⁵ molecules
Explanation:
1 mol refers to the amount of a substance. The amount of C₂H₆ molecules (or any other substance) that are in one mol is given by Avogadro's number:
1 mol contains 6.023x10²³ particles (be it atoms, molecules or ions).With that in mind we can calculate how many molecules are there in 52.5 moles:
52.5 mol * 6.023x10²³ molecules/mol = 3.16x10²⁵ moleculeshe specific heat capacity of a pure substance can be found by dividing the heat needed to change the temperature of a sample of the substance by the mass of the sample and by the change in temperature. The heat capacity of a certain substance has been measured to be
Answers
Complete question is;
The specific heat capacity of a pure substance can be found by dividing the heat needed to change the temperature of a sample of the substance by the mass of the sample and by the change in temperature. The specific heat capacity of a certain substance has been measured to be 3.52 J/g°C. Suppose 420.0 g of the substance is heated until the temperature of the sample has changed by 43.8 °C.
Write an equation that will let you calculate the last Q that was needed for this temperature change. Your equation should contain only symbols. Be sure to define each symbol.
Answer:
Q = m•c•Δt
Q = 64753.92 J
Explanation:
We are given;
Mass (m) = 420 g
Change in temperature; (Δt) = 43.8 °C
Specific heat capacity (c) = 3.52 J/g °C
The last Q is simply the heat energy that caused that temperature change.
This is given by the formula;
Q = m•c•Δt
Plugging in the relevant values;
Q = 420 × 3.52 × 43.8
Q = 64753.92 J