Answer:
473 ml.
Explanation:
In gallons it’s equal to 0.125
Which statement best describes the driving force behind the electrophilic addition of strong acid to an alkene
The chemical transformation of a carbon-carbon double bond is by addition reaction. The statement best describes the driving force is that the reaction is favorable because the total bond strength in the products is greater than in the reactants.
A great number of reagents often found in inorganic and organic, have been known to add to the functional group of alkenes.The bond energies of a molecule is simply known as the energies needed to break all the covalent bonds in the molecule.
When the bond energies of the product molecules is known to be greater than the bond energies of the reactants, the reaction is regarded as exothermic.
The full question is below
Which statement best describes the driving force behind the electrophilic addition of strong acid to an alkene?
The reaction is favorable because the pi bond is stronger than a sigma bond and it takes more energy to break it.
The reaction is favorable because a less stable, high-energy intermediate is formed.
The reaction is favorable because the first step is the rate-determining step.
The reaction is favorable because the total bond strength in the products is greater than in the reactants.
The reaction is favorable because the overall reaction is endothermic.
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Construct a conclusion using the claim, evidence and reasoning format to explain the typical properties observed by ionic and covalent compounds.
Answer:
The key to understanding why ionic and covalent compounds have different properties from each other is understanding what's going on with the electrons in a compound. Ionic bonds form when atoms have different electronegativity values from each other. When the electronegativity values are comparable, covalent bonds form.
But, what does this mean? Electronegativity is a measure of how easily an atom attracts bonding electrons. If two atoms attract electrons more or less equally, they share the electrons. Sharing electrons results in less polarity or inequality of charge distribution. In contrast, if one atom attracts bonding electrons more strongly than the other, the bond is polar.
Ionic compounds dissolve in polar solvents (like water), stack neatly on each other to form crystals, and require a lot of energy for their chemical bonds to break. Covalent compounds can be either polar or nonpolar, but they contain weaker bonds than ionic compounds because they are sharing electrons. So, their melting and boiling points are lower and they are softer.
I hope this helps have a great day :)
A compound consists of 75% magnesium and 25% oxygen. Find the empirical formula.
% Composition of elements:
Magnesium = 75%Oxygen = 25%Atomic mass of given elements:
Magnesium = 24 gOxygen = 16 gNow, divide % composition by Atomic mass:
[tex]\footnotesize\implies Mg = \dfrac{\% \: Composition}{Atomic \: mass} = \dfrac{75}{24} = \bf 3.125[/tex]
[tex]\footnotesize\implies O = \dfrac{\% \: Composition}{Atomic \: mass} = \dfrac{25}{16} = \bf 1.5625[/tex]
Simplest Ratio:
[tex]\footnotesize\implies Mg = \dfrac{3.125}{1.5625} = 2[/tex]
[tex]\footnotesize\implies O = \dfrac{1.5625}{1.5625} = 1[/tex]
Empirical Formula:
[tex]\footnotesize\implies \underline{ \boxed{ \red{ \bf Empirical \: Formula = Mg_2O}}}[/tex]
The empirical formula will be [tex]Mg_{2}[/tex] .
What is empirical formula?The simplest entire number fraction of atoms contained in a chemical molecule is its empirical formula.
Calculation of empirical formula:
It is given that, composition of Mg = 75 %, composition of oxygen = 25%.
It is known that, atomic mass of Mg = 24 g, atomic mass of oxygen = 16g.
By dividing % composition by atomic mass of given elements:
Mg = % composition / %atomic mass
= 75 / 24
= 3.125
Oxygen (O) = % Composition / atomic mass
= 25 / 1.56
Now, calculate simplest ratio of Mg and O.
For Mg = 3.125 / 1.56
= 2.
For O = 1.56 / 1.56
= 1
So, the empirical formula will be [tex]Mg_{2}O[/tex].
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If the pressure of 50.0 mL of oxygen gas at 100°C increases from 735 mm Hg to 925 mm Hg, what is
the final volume? Assume temperature remains constant.
Answer: .039L
Explanation:
the bleaching action of sulphur (iv) oxide is by
Answer:
The bleaching action of sulphur di oxide is temporary because it involves the process of reduction. sulphur di oxide removes oxygen from the coloured substance and makes it colourless. Atmospheric oxygen slowly takes place of the removed oxygen and because of which the material regains the co
Which which characteristics determines color? A. The Measurement from crest crest. B. The highest point on the wave. C. The lowest points on the waves D. The number of waves that pass per second. Please give me a good response.
Answer:
The answer is option A
Explanation:
This is because the measure from crest to crest is also known as the wavelength, and the color of a wave always depends on its wavelength, if you see the electromagnetic spectrum
Hope this helps!
__________ are negatively charged subatomic particles found in orbital clouds around the nucleus of an atom.
how is waste removed from the body
Waste is removed from the body in various ways. Kidneys filter out metabolic waste, excess fluid and eliminate it in the form of urine. Lungs exhale CO2 from the deoxygenated blood. The undigested solid waste is egested out from the large intestine. Excretion is the process of removing wastes and excess water from the body. It is one of the major ways the body maintains homeostasis. Organs of excretion make up the excretory system. They include the kidneys, large intestine, liver, skin, and lungs.
If the following ions Mg2+, Cl-, Sr2+, OH- are placed in a test tube, the precipitate formed is
Answer:
I am so sorry if I am wrong but my guess is no precipitate is formed.
Explanation:
If the following ions[tex]Mg^{+2}[/tex],[tex]Cl^{-}[/tex], [tex]Sr^{+2}[/tex], [tex]OH^{-}[/tex] are placed in a test tube, the precipitate formed is [tex]Mg(OH)_{2}[/tex]
What is precipitation reaction?The chemical reaction in which white color insoluble substance formed in water is called precipitation reaction.The white solid substance accumulate at the surface or separate from the reaction is called precipitate.Why participate forms?When particular cation and particular anion in a aqueous solution combine to form an insoluble ionic solid. The reaction form precipitate or not is decide by solubility rules.To learn more precipitate about
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In an acid/base titration where NaOH(aq) is the titrant and HCl(aq) is the analyte, what is true about the moles of each reactant present in the reaction flask at the equivalence point?
A. The moles of NaOH are equal to moles of HCl.
B. There are more moles of NaOH than HCl.
C. There are more moles of HCl than NaOH.
D. The concentrations are needed to determine moles.
[tex]\huge{\color{magenta}{\fcolorbox{magenta}{black}{\huge{\color{white}{\fcolorbox{aqua}{black}{✿ᴀɴsᴡᴇʀ✿}}}}}}[/tex]
A) The moles of NaOH are equal to moles of HCl.
Explanation:
NaOH + HCl ↦NaCl + H20
Calculate the Ka of your acetic acid solution. Discuss this calculation. Based on the value of Ka, is acetic acid a strong acid or a weak acid
Based on our knowledge of strong and weak acids, we can confirm that the Ka value for acetic acid will be relatively low since it is a weak acid.
Acids can be strong or weak. This is determined by its tendency to break apart into ions or stay together to form molecules. Although somewhat counter-intuitive, strong acids are those that are most likely to break apart and therefore contain a high number of ions within their solutions.
Weak acids, on the other hand, are those that tend to stay together in the form of molecules and therefore possess very low ion counts in their solutions. The acid dissociation constant, Kₐ, is used to measure whether an acid is weak or strong and how much so. In the case of Acetic acid, the ka measurement will offer a low value, indicating a weak acid.
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How many moles of c3h6will be consumed when 4.11 mol of co2 are produced in the following equation 2c3h6 +9o2 - 6co2 + 6H2o
Answer: a.1.37 b.4.11 c.6.00 d.12.3
Explanation:
cyclopropane is a commonly used anesthetic. If a 2.00 L flask contains 3.11 g of cyclopropane gas at 684 mmHg pressure and 23.0 C, what is the molecular mass of cyclopropane
Answer:
42.0g/mol
Explanation:
The steps for this question is to use the ideal gas law, and then use n=m/M to find molar mass.
PV = nRT
n= PV/RT
Change 23 degrees to 296.15 K and 684mmHg to kpa
n = (91.1925kpa)(2.00L)/(8.314Lkpa/mol K)(296.15K)
n= 0.074mol
n = m/M
M = m/n
M = 41.98489g/mol
A pan containing 40 grams of water was allowed to cool from a temperature of 91.0 °C. If the amount of heat released is 1,300 joules, what is the approximate final temperature of the water? 74 °C 78 °C 81 °C 83 °C
Answer:
d. 83 °c
Explanation:
Answer:
D. 83 c
Explanation:
took the test
What is the freezing point, in Celsius, of a sucrose-water solution containing 2.23g sucrose per 100g water. The molal freezing point depression constant for water is 1.86oC/m.
The freezing point of the solution is - 0.12 oC.
We know that;
ΔT = K m i
ΔT = Freezing point depression
K = Freezing constant
m = molality
i = Van't Hoff factor
Number of moles of sucrose= 2.23g/342 g/mol = 0.0065 moles
Mass of solvent in Kg = 0.1 Kg
Molality of the solution = 0.0065 moles/ 0.1 Kg = 0.065 m
Now;
ΔT = 1.86 oC/m × 0.065 m × 1
ΔT = 0.12 oC
Freezing point of pure water = 0 oC
Freezing point of solution = 0 oC - 0.12 oC = - 0.12 oC
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Did cellular respiration occur in trial 3 with the yeast and sugar?
PLEASE HELP ITS DO RIGHT NOWW
Answer:
In summary, yeast is a single-celled fungus that uses cellular respiration, which converts glucose and oxygen into carbon dioxide and ATP. ... Aerobic respiration makes the most ATP, between 36 and 38. Fermentation is anaerobic respiration and happens without oxygen.
Explain why there might be a change in the density of a forged product as compared to that of the cast blank.
Answer:
Forged parts are often tougher than cast parts. This can be determined by performing tensile tests on various areas on the parts. Additionally, the microstructures of forged and cast parts can be used to determine if a part was forged or cast. The microstructure of a cast part will have a more uniform grain structure.
Explanation:
For the reaction C + O2 = CO2, if 3 grams of carbon react with the oxygen, how many grams of carbon dioxide are produced?
How many moles of KOH are in 21.0g of KOH?
Answer:
HowHow many moles of KOH are in 21.0g of KOH?
Answer:
0.374 moles
Explanation:
I have included the dimensional analysis below, and by MM I mean Molar Mass of the atom.
Hope this helps!
In a constant-pressure calorimeter, 55.0 mL of 0.340 M Ba(OH), was added to 55.0 mL of 0.680 M HCI. The reaction caused the temperature of the solution to rise from 22.21 °C to 26.84 °C. If the solution has the same density and specific heat as water (1.00 g/mL and 4.184J/g • °C.) respectively), what is A4 for this reaction (per mole H,O produced)? Assume that the total volume is the sum of the individual volumes.
Answer:
Ba(OH)2 + 2 HCl → BaCl2 + 2 H2O
The reactants are present in equimolar amounts, so there is no excess or limiting reactants.
(0.0500 L) x (0.600 mol/L HCl) x (2 mol H2O / 2 mol HCl) = 0.0300 mol H2O
(4.184 J/g·°C) x (50.0 g + 50.0 g) x (25.82 - 21.73)°C = 1711.256 J
(1711.256 J) / (0.0300 mol H2O) = 57042 J/mol = 57.0 kJ/mol H2O
Explanation:
A reaction between solid sodium hydroxide and gaseous carbon dioxide produced solid sodium carbonate and liquid water. Write out a balanced equation for this reaction.
Balanced:
2NaOH + CO2 → Na₂CO₃ + H₂O
Explanation:
To balance an equation, the amount of atoms on each side must be equal.
Atom Count on Reactant Side:
Na = 1O = 3H = 1C = 1Atom Count On Product Side:
Na = 2C = 1O = 4H = 2As you see, to simply balance the equation, put the 2 in order for the atom count on the reactant side to be equal to the product side. The 2 will add one more of each atom so that its the same as the product side.
Consider the evaporation of water. The standard change in the free energy is positive with ΔG∘rxn=+8.59kJmol. One might expect this process to occur in the opposite direction, with water vapor condensing into liquid water. How can the evaporation be spontaneously under normal conditions?
Answer:
The partial pressure of water is much less than 1atm, so the free energy change for the process must be negative with ΔGrxn<0.
Explanation:
Water vapor will condense into liquid water when the water vapor is in its standard state, with a pressure of 1atm. Under normal circumstances, the partial pressure of water vapor is much less that 1atm. It is in a nonstandard state. The free energy change of this reaction has to be negative in order to make the reaction spontaneous.
The criteria of the spontaneous process are the change in the Gibbs free energy should be negative. Above the normal boiling point, the TΔS will be greater than ΔH and ΔG<0.
What is Gibbs's free energy?Gibbs free energy can be described as a state function therefore it doesn’t depend on the path. The change in free energy is equal to the change in enthalpy minus the product of entropy change and temperature of the system.
ΔG = ΔH - Δ (TS)
If the process is carried out at constant temperature, ΔT = 0:
ΔG = ΔH – TΔS
ΔG > 0 for the reaction is non-spontaneous, ΔG < 0 for the reaction is spontaneous, exergonic and ΔG = 0 for the reaction is at equilibrium.
Spontaneous can be described as a reaction that occurs by itself without any external action towards it. The non-spontaneous process needs constant external energy applied to continue and as the external action, the process will cease.
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Jackson uses a battery operated toothbrush that is rechargeable. what happens when Jackson plugs in his toothbrush into an electrical outlet to recharge it ?
A. chemical energy is transformed to sound energy.
B. electrical energy is transformed to kinetic energy.
C. chemical energy is transformed to kinetic energy.
D. electrical energy is transformed to chemical energy
Answer:
the answer would be B
Explanation:
The power from the charger use electricity and the electricity transforms to energy that can be moved
TRUE or FALSE 1. Badminton began in India as a game called poona. 2. The shuttle was then called a bird because it was made from goose feather. 3. Ti jian zi played by throwing up in the air. 4. Racket is made of either metal or synthetic materials. 5. Head, throat, shaft, and handle are the parts of the rackets. 6. Shuttlecock is made up of 16 goose feathers. 7. Forehand, Backhand, and Sidestroke are the three basic skills of Badminton. 8. Backhand is use to depends on the type of shot to be executed. 9. Stroke means to propel with a controlled swinging blow. 10. The whole size of the badminton court has 39 meters.
Answer:
1.false
2.true
3.true
4.true
5.false
6.false
7.false
8.true
9.false
10.true
Explanation:
I took the test
PLS HELP CHEM
What is the temperature, in Celsius, of 20.8 g of carbon dioxide (CO2) in a 575 mL container under 1.5 atm of pressure?
Answer:
Use the formula PV=nRT to get the temperature
How many carbon dioxide molecules and water molecules are needed to make one molecule of glucose?
Answer:
It takes six molecules of carbon dioxide and six molecules of water to make one molecule of glucose.
Why are sound waves considered a type of mechanical energy?
Question 6 options:
Sound waves can travel through space
Sound waves can travel through a solid
Sound waves transfer energy by the motion of particles
Sounds waves are made by machines
-Sound waves transfer energy by the motion of particles.
Explanation:
These particle-to-particle, mechanical vibrations of sound conductance qualify sound waves as mechanical waves. Sound energy, or energy associated with the vibrations created by a vibrating source, requires a medium to travel, which makes sound energy a mechanical wave.
Sound waves transfer energy by the motion of particles considered a type of mechanical energy.
What is mechanical energy ?Potential energy plus kinetic energy are combined to form mechanical energy. According to the concept of mechanical energy conservation, mechanical energy remains constant in an isolated system that is solely exposed to conservative forces.
The quantity of energy that a force transfers is known as mechanical work. It is a scalar quantity with joules as its SI unit, much as energy.
Since there are only microscopic forces generated by atomic collisions and no macroscopically quantifiable force, heat conduction is not regarded as a kind of work.
Transverse, longitudinal, and surface waves are the three different forms of mechanical waves. When the wave's energy goes through them, they behave differently in terms of how the medium's particles move.
Thus, option C is correct.
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For the oxidation–reduction reaction equation
2Sc+3Br2⟶2ScBr3
indicate how many electrons are transferred in the formation of one formula unit of product.
In the formation of 1 formula unit of ScBr₃, 3 electrons are transferred.
Let's consider the following balanced redox reaction.
2 Sc + 3 Br₂ ⟶ 2 ScBr₃
We can identify both half-reactions.
Oxidation: 2 Sc ⟶ 2 Sc⁺³ + 6 e⁻
Reduction: 6 e⁻ + 3 Br₂ ⟶ 6 Br⁻
As we can see, 6 electrons are involved in the formation of 2 formula units of ScBr₃. Thus, 3 electrons are involved in the formation of 1 formula unit of ScBr₃.
In the formation of 1 formula unit of ScBr₃, 3 electrons are transferred.
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What is the answer to this question?
Answer:i think its d not sure tho
Explanation:
Compare the alkali metals and alkaline earth metals with respect to (i) Ionization enthalpy (ii) basicity of oxides (iii) solubility of hydroxide
Answer:
Ionization enthalpy
Explanation:
that should be right