The statement regarding the behavior of real gases which is false is: As the attractions between molecules increase, the value of the constant b in the van der Waals equation increases; option C is correct.
What are ideal gases?Idea gases refer to any gas whose molecules occupy negligible space and have no intermolecular interactions and thus obey the gas laws perfectly.
The ideal gas equation is given below as follows:
PV = nRT
where:
P is pressure of the gas
V is the volume of the gas
n is the number of moles of the gas
R is the molar gas constant
T is the temperature of the gas
In reality, though, no gas exhibits ideal behavior because intermolecular forces exist between the molecules of gas, and these gases are known as real gases.
Hence, the following conditions apply to real gases:
deviations from ideal gas behavior are more pronounced at high pressures because the molecules experience greater attraction to one anotherdeviations from ideal gas behavior are more pronounced at low temperatures because the molecules experience greater attraction to one another.deviations from ideal gas behavior are more pronounced at high pressures because the fraction of space occupied by molecules becomes non-negligible.Learn more about ideal gases at: https://brainly.com/question/20348074
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at the conclusion of the experiment, the student notes that there are four primary bands in the cesium chloride gradient, with all four bands ranging between approximately 30 and 60s. what is a logical conclusion that can be drawn from this data?
At the conclusion of this experiment, there is a combination of both prokaryotic and eukaryotic ribosomes in the sample.
What is difference between prokaryotic and eukaryotic ribosomes?
How they produce proteins is the primary distinction between bacterial and eukaryotic ribosomes. Large protein molecules make up eukaryotic ribosomes, enabling them to synthesis larger proteins than do bacterial ribosomes. Large proteins are better able to perform complex jobs in the cell, therefore this is significant. Prokaryotic ribosomes typically produce smaller, simpler proteins, which restricts their capacity to perform complex functions.
Another difference between prokaryotic and eukaryotic ribosomes is how they interact with other molecules in the cell. Prokaryotic ribosomes interact with other molecules by binding to specific sites on their surface. This interaction allows the Ribosome to work its magic and produce proteins. Eukaryotic ribosomes, on the other hand.
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Starting with acetylene, show the reagents you would use to prepare the following compound: 2,7-dimethyl-4-octyne 1) NaNH2 2) Br 1) NaNH2 2) Br 3) NaNH2 4) Br 1) NaNH2 2) Br 3) NaNH2 4) EtBr 1) NaNH2 2) EtBr 3) NaNH2 4) Br
The liquid form of 1-octene has no color. Flashpoint of 70 °F. Less dense (at about 6 lb/gal) and insoluble in water than water, as a result, floats on water.
Having the chemical formula CH2CHC6H13, 1-octene is an organic compound. The double bond in the alkene is in the alpha (primary) position, making the compound more reactive and giving it useful chemical properties. The alkene is also referred to as a higher olefin and alpha-olefin.
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an ammonia buffer solution contains 0.22 m n h 4 and 0.24 m n h 3 . the pka of ammonium is 9.24. what is the ph of the buffer?
If 0.22 m n h 4 and 0.24 m n h 3 are present in an ammonia buffer solution, the buffer's pH is 9.28. Ammonium's pka is 9.24. Nitrogen and hydrogen combine to form the inorganic compound ammonia.
Ammonia is an odourless gas with a distinct pungent odor. It is a stable binary hydride and the simplest pnictogen hydride. In terms of biology, it is a typical nitrogenous waste, especially for aquatic organisms.
In order to create a buffer solution, a weak acid and salt, such as CH3COOH and CH3COONa, or a weak base, such as NH4OH and NH4Cl, are typically combined with salt. Is called buffer solution.
ph = 9.24+log(0.24/0.22)
ph = 9.24+0.04
ph = 9.28
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Generating hydrogen from water or methane is energy intensive. A non-natural enzymatic process has been developed that produces12 moles of hydrogen per mole of glucose by the reaction:CgH12O6(aq)+6H2O(l)-> 12H2(g)+6cO2(g)What volume of hydrogen could be produced from 256g of glucose at STP?
Volume of hydrogen could be produced from 256g of glucose at STP is 381.69 L.
The balanced reaction is given as :
C₆H₁₂O₆ + 6H₂O ----> 12H₂ + 6CO₂
moles of H₂ = 12 mol
mass of glucose = 256 g
moles of glucose = mass / molar
= 256 / 180.16
= 1.42 mol
1 mole of glucose = 12 mole of H₂
1.42 moles = 12 × 1.42 = 17.04 mol
1 mole of an ideal gas at STP is 22.4 L
volume = 17.04 × 22.4 = 381.69 L
Thus, Generating hydrogen from water or methane is energy intensive. A non-natural enzymatic process has been developed that produces12 moles of hydrogen per mole of glucose by the reaction. Volume of hydrogen could be produced from 256g of glucose at STP is 381.69 L.
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a soft drink contains 47.0 carbohydrates per serving. calculate the number of nutritional calories (cal) per serving in this drink.
A soft drink that contains 47 grams of carbohydrates per serving has a nutritional calories (cal) per serving of 188 calories.
Calories are a measurement of energy released from your body after digestion and absorption of food whereas carbohydrate is a carbon-based organic compound consisting of carbon, hydrogen, and oxygen atoms with a general chemical molecular formula of CH₂O.
In order to get the number of nutritional calories per serving from a soft drink that has 47 grams of carbohydrate, we will need to multiply the number of grams by 4 since there are about 4 calories for every gram of carbohydrate, and the calculation is as follows:
47×4=188
Hence, there are 188 calories in a soft drink that contains 47 grams of carbohydrates.
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suppose of sodium nitrate is dissolved in of a aqueous solution of ammonium sulfate. calculate the final molarity of nitrate anion in the solution. you can assume the volume of the solution doesn't change when the sodium nitrate is dissolved in it. be sure your answer has the correct number of significant digits.
Ammonium ion molarity is equal to (0.03224/0.2) = 0.1612 mol/L or 0.16 M.
Is sulfate of ammonium hazardous to people?Breathing in ferrous ammonium can have negative effects on you. Inhaling ferrous ammonia can upset the nose and throat, which can lead to coughing and wheezing. Contact can sting the skin and eyes. High exposure may result in sleepiness, nausea, vomiting, diarrhea, and stomach pain.
Briefing2NH₄NO₃ + Na₂CrO₄ → (NH₄)₂CrO₄ + 2NaNO₃
We first convert the given parameters to number of moles
Number of moles = (Mass/Molar mass)
Molar mass of NH₄NO₃ = 80.043 g/mol
Number of moles of NH₄NO₃ = (2.59/80.043) = 0.03224 mole
Number of moles = (Concentration in mol/L) × (Volume in L)
Number of moles of Na₂CrO₄ = 0.4 × 0.2 = 0.08 Mole
2 moles of NH₄NO₃ react with 1 mole of Na₂CrO₄
So, it it evident that NH₄NO₃ is the limiting reagent as it is in short supply in the amount needed for the reaction.
So, the number of moles of ammonium ion in the product is also 0.03224 mole.
Molarity = (Number of moles)/(Volume L)
Molarity of ammonium ion = (0.03224/0.2) = 0.1612 mol/L = 0.16 M.
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32 is a radioactive isotope with a half-life of 14.3 days. if you currently have 24.9 g of p32, how much p32 was present 9.00 days ago?
38.52 g of phosphorus-32 was present 9.00 days ago if it has a half-life of 14.3 days
As the half-life of phosphorus-32 is 14.3 days and the remaining amount is given to be 24.9 g and we need to determine the amount present 9 days ago therefore we first determine the number of half-lives that have elapsed as follows;
n = time ÷ half-life
n = 9/14.3
Finally, we can calculate the amount of the radioactive isotope that was available 9 days ago
Amount remaining (N) = 24.9 g
Number of half-lives (n) = 9/14.3
N₀ = 2ⁿ × N
N₀ = 2^(9/14.3) × 24.9
N₀ = 38.52 g
Hence the amount present 9 days ago is calculated to be 38.52 g
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When using a pH meter to monitor a stirring reaction mixture, where should you place the pH sensor electrode? Select one: O Between the stirring vortex and the side of the glassware In the middle of the stirring vortex of the solution Along the edge of the glassware O Suspended above the reaction mixture
While using a pH meter to monitor a stirring reaction mixture, the pH sensor electrode should be placed between the stirring vortex and the side of the glassware.
The pH meter is an electric device which is used to measure the hydrogen-ion activity in water-based solutions. This means that it is used to measure the pH of the solutions and determine which is the acidic or alkaline.
The pH meter is made up of a voltmeter which is attached to a pH-responsive electrode and a reference electrode.
The pH-responsive electrode is usually made of glass while the reference electrode is usually a silver–silver chloride electrode.
While monitoring the stirring reaction mixture, the pH-responsive electrode written above is usually placed between the stirring vortex and the side of the glassware.
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How does mitosis affect cancer?.
Cancer cells use telomerase to add several telomeric sections to the ends of their DNA during DNA replication, which prolongs their life span relative to other somatic cells and prevents cancer cells from dying. As a result, cancer cells never expire.
Uncontrolled cell division may result from growth factor overexpression or a lack of suppressor proteins. Tumors form as a result of unchecked cell proliferation, which if left untreated can be fatal. Continual mitosis takes place. Cancer cells use the enzyme telomerase to add several telomeric sections to the ends of their DNA during DNA replication, which prolongs their life span relative to other somatic cells. As a result, cancer cells never die. Through this technique, normally dying cancer cells just continue to divide. A condition known as cancer is one in which a small percentage of the body's cells develop out of control and spread to other bodily regions.
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What is the mass of 1 mole of sodium oxide?.
Sodium oxide has a molecular mass of 62 amu, which is the sum of two sodium atoms and one oxygen atom.
The sum of the atomic masses of all atoms in a molecule is the molecule's molecular mass. As a result, if we know the molecular formula, which can be given and calculated, we can calculate the molecular mass. In chemistry, the formula weight is calculated by multiplying the atom weight (in atomic mass units) of each element in a chemical formula by the number of atoms in the formula, then adding all of these products together.
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5 x 10^8- standard notation
Answer:
5e-8 (500,000,000)
Explanation:
The scientific notation 5e-8 is same as 5 x 10^-8 or 5 x 10 -8. Thus, to get the answer to 5e-8 as a decimal, we multiply 5 by 10 to the power of -8. = 5e-8.
Answer:
5 x 10^8 = 500,000,000
Explanation:
You are going to have to type this equation into a calculator, because it might take way too long to do it on paper. But if you happen to do it on paper for no reason, this is how you would do it:
You are going to take the 10, and add 0 to it 8 different times:
10, 100, 1,000, 10,000, 100,000, 1,000,000, 10,000,000 100,000,000.
Then, you multiply 100,000,000 by 5:
100,000,000 x 5 = 500,000,000.
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For the reduction reaction with NaBH4, calculate the theoretical yield and percent yield of the crude product after liquid-liquid extraction. Assume the ketone is the limiting reactant, and your alcohol product has a molar mass that is 2 amu larger than the ketone starting material. Show all calculations. Mass of empty 50 mL round-bottomed flask: 39.8791 g Mass of 50 mL round-bottomed flask with crude reduction product (Step 16): 39.9585 g Appearance of crude reaction product: colorless oil
Though NaBH4 and LiAlH4 are similar, NaBH4 is less reactive. Esters, amides, acids, and nitriles are largely unaffected; its power is limited to reducing aldehydes, ketones, and acid chlorides to alcohols.
Because the hydride ion can attack the planar carbonyl group on either face, the reduction of unsymmetrical ketones with LiAlH4 or NaBH4 results in the production of two stereoisomers: A racemic mixture of enantiomers results from the absence of any additional chiral centers. The intermediates produced by the reaction of sodium borohydride with water are also mild reducing agents known as hydroxyborohydride. The most popular reaction solvents for reduction or organic substrates are ethanol and propane-2-ol, though methanol is also employed. Because a similar reaction with alcohol is relatively slow, it is also known as an alcohol reduction reaction.
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Why are valence electrons important in forming bonds?.
Valence electrons important in forming bonds because the formation of the ionic bond and the covalent bond depends on the valence electrons.
The valence electrons are those which are present on the outermost shell of the atom. the valence electron will cause the atoms are unreactive or the highly reactive.
The covalent bond is formed by the sharing of electrons between the atoms. The ionic bonds are formed by the transfer of the electrons between the atoms.
Thus, the valence electrons are those which decide the formation the bond whether it is ionic bond or the covalent bond between the atoms.
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how many distinct dichlorination products can result when isobutane is subjected to free radical chlorination?
The distinct dichlorination products can result when isobutane is subjected to free radical chlorination is three products.
The isobutane when subjected to the dichlorination then there will be three distinct product will be form. the chlorination is process of the relacing the hydrogen atom with the chlorine atom. the process of dichlorination is given as follows :
C(CH₃)₃-H + Cl₂ -----> C(CH₃)₃ - Cl + ClC(CH₃)₂-CH₂Cl+
CH₂Cl-C-Cl-CH₃-CH₂Cl
The three distinct dichlorination product are formed by the chlorination of the isobutane. the iso butane is the tertiary alkane. the isobutane mechanism is shown above , the isobutane is subjected to the free radical chlorination form the three different products.
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What is the role of election?.
The major duty of India's Election Commission is to supervise impartial elections across the whole country. The Indian Election Commission is the Direct Superintendent.
The elections for the President and Vice President of India, as well as the legislatures and parliaments of each State, are under its supervision. Vote counting is the Election Commission's most important job during an election. Each of the State Election Commissioners is independent of the Indian Election Commission and is in charge of a certain task. To oversee the holding of elections for Panchayati Raj institutions, a State Election Commissioner must be chosen by the State government.
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9.72 explain why each alkyl halide stereoisomer gives a different alkene in the e2 reactions that follow. it will probably help to build models or draw out the conformations of the two starting materials.
Each alkyl halide stereoisomer gives a different alkene in the E2 reactions that follow because of the anti-coplanar conformation requirement for the E2 reaction, one stereoisomer will be produced preferably over the other, and this is called stereoselectivity.
What is Stereo Selectivity?Stereoselectivity means the specific formation of either (E) - or ( Z )-alkenes. Unlike the E1-reaction, which has only poor stereoselectivity because of the intermediate formation of a planar carbocation, the stereoselectivity of the E2 reaction is very high. In the transition state all five groups or atoms involved must be coplanar.
The first two possibilities are examples of stereoselectivity, the first being termed syn-addition, and the second anti-addition. Since initial electrophilic attack on the double bond may occur equally well from either side, it is in the second step (or stage) of the reaction (bonding of the nucleophile) that stereoselectivity may be imposed.
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a student measures the absorbance of a solution containing fescn2 ions using a spectrophotometer. the cuvette used by the student has two frosted walls and two transparent walls. the student properly orients the cuvette so that the path of the light goes through the transparent sides of the cuvette when calibrating the spectrophotometer. how will the measured absorbance of the fescn2 be affected if the student incorrectly orients the cuvette so that the path of the light is through the frosted sides of the cuvette? responses the measured absorbance of the fescn2 solution will not be affected. the measured absorbance of the f e s c n with a positive 2 charge solution will not be affected. the measured absorbance of the fescn2 solution will be higher than the actual absorbance. the measured absorbance of the f e s c n with a positive 2 charge solution will be higher than the actual absorbance. the measured absorbance of the fescn2 solution will be lower than the actual absorbance. the measured absorbance of the f e s c n with a positive 2 charge solution will be lower than the actual absorbance. the effect on the measured absorbance of the fescn2 solution depends on the concentration of the fescn2 solution.
If the student incorrectly orients the cuvette of the spectrophotometer so that the path of the light is through the frosted sides of the cuvette, the measured absorbance of the FeSCN solution will be higher than the actual absorbance.
A spectrophotometer is an instrument used to measure the concentration of a solution by means of the absorbance according to Beer-Lambert's law. The absorbance of recorded by the detector reflects the concentration of the analyte specie in the solution.
If the cuvette of the spectrophotometer is wrongly oriented such that light is scattered by the frosted cuvette of the spectrophotometer, a higher absorbance is recorded by the detector hence the measured absorbance of the FeSCN solution will be higher than the actual absorbance.
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Albuterol is a sympathomimetic drug that binds to beta‐2 adrenergic receptors suggesting that.
Adenyl cyclase is activated by albuterol, which increases cyclic-3', 5'-adenosine monophosphate (cAMP) in the cells and -2 adrenergic receptors on airway smooth muscles.
What are adrenergic receptors?Adrenergic receptor is defined as the proteins that are membrane-bound and mediate the central and peripheral effects of norepinephrine and epinephrine. Adrenergic receptors are cell surface receptors that become active when they contact a particular class of neurotransmitter known as a catecholamine.
By soothing the smooth muscles in the bronchi, beta2 agonists treat reversible bronchospasm. These medications, which have bronchodilator properties, are used to treat acute asthmatic bouts of bronchospasm as well as to prevent it from happening in cases of exercise-induced asthma or nocturnal asthma.
Thus, Adenyl cyclase is activated by albuterol, which increases cyclic-3', 5'-adenosine monophosphate (cAMP) in the cells and -2 adrenergic receptors on airway smooth muscles.
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What makes an atom a +1 charge?.
When an atom looses one electron it gains +1 charge and forms a unipositive ion.
What is an ion?
An ion is defined as an atom or a molecule which has a net electrical charge. There are 2 types of ions :1) cation 2) anion . The cation is the positively charged ion and anion is the negatively charged ion . As they are oppositely charged they attract each resulting in the formation of ionic bond.
Ions consisting of single atom are mono-atomic ions while which consists of two or more ions are called as poly-atomic ions . They are created by chemical interactions . They are very reactive in their gaseous state and rapidly react with oppositely charged ions resulting in neutral molecules.
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a rectangular block of aluminum has the following dimensions: 1 in x 1 in x 6 in. the density of aluminum is 2700 kg/m^3. which of the following most closely represents the weight of the aluminum block ? group of answer choices 2.5 n 10 n 7.5 n 5 n
2.5 n of the following most closely represents the weight of the aluminum block .
What is density in chemistry example?How much "stuff" is contained in a specific quantity of space is determined by its density. For instance, a brick of the harder, lighter metal gold (Au) will be thicker than a slab of the heavy element lead (Pb) (Au). Styrofoam blocks are less dense than bricks. Mass per given volume serves as its definition.
What are the benefits of density in chemistry?Density is an important concept because it allows us to forecast which molecules will float but which will dive in a liquid. An object will frequently float as long as its density is less than that of the liquid.
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The most appropriate formula for solving this problem includes only which variables?.
The new pressure of the container will be 1.14 atm and the most appropriate formula for solving this problem is P/T constant with pressure and temperature as variables.
The most appropriate formula for solving this problem includes the temperature and pressure as variables.
P/T = Constant
Because the volume of the container is constant.
The initial pressure p is 1atm, initial temperature t is 273K and the final temperature T is 311K, the final pressure P will be,
P/T = p/t
Putting values,
P/311 = 1/273
P = 311/273
P = 1.14 atm.
So, the final pressure of the container is 1.14atm.
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Complete question - One mole of an ideal gas is sealed in a 22.4-l container at a pressure of 1 atm and a temperature of 273 k. the temperature is then increased to 311 k , but the container does not expand. what will the new pressure be? part a the most appropriate formula for solving this problem includes only which variables? enter the required variables, separated by commas (e.g., p,v,t).
Based on the standard EMF series and your knowledge of half-reactions, determine the cell potential and spontaneity of a cell that consists of a pure cobalt electrode in a solution of Co?" ions; the other half is a lead electrode immersed in a Ni2+ solution. PT + 7 Pb Sn + 2S N. + 2 Ni Co + 2 Co -0.126 -0.136 -0.250 -0.277 +0.027V, spontaneous -0.027 V, nonspontaneous +0.527, spontaneous -0.527, nonspontaneous
Oxidation Reaction is not same as the Reduction,we need to change sign of ( Ev ) as well as Lies and RHS as shown cell potential =+ 0.027 V
cell potential = ( Ev ) Red" + ( Ev )oxidation
=- 0250 + 0.277
=+ 0.027 V
The potential differential between the two electrodes of an electrochemical cell, which develops when electrons are sent via the external circuit of a cell that has not reached equilibrium, is known as the cell potential. A voltaic cell's electrical potential is a measurement of its capacity to generate an electric current. Typically, electrical potential is expressed in volts (V). The electrical potential difference between the two half-cells determines the voltage that a specific voltaic cell will generate.
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What is a full valence shell?.
A full valence shell electron configuration is the most stable. Other classes of elements have partially filled valence shells. a stable electron configuration to achieve
They then achieve a stable electron configuration by either gaining or losing electrons. They are capable of creating a stable configuration and an outer shell that is filled by adding or removing an electron. Atomic physics and quantum chemistry both refer to the electron configuration as the configuration of electrons in atomic or molecular orbitals of an atom, molecule, or other physical structure. known as an electron configuration. A single type of atom, each of whose nuclei has the same number of protons, makes up an element, which is a pure substance.
A pure substance known as an element is made up of only one sort of atom, each of whose nuclei contains the identical number of protons. The issue of how conceptually sound the word "element"
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Is Na and O ionic or covalent?.
Because it has a metal cation and a non-metal anion, sodium oxide is a binary ionic compound.
Describe non-metal anion.Non-metals are substances with a propensity to pick up electrons during chemical processes to generate anions. These are strong ionizing elements that are electronegative. They lack luster, are fragile, and have poor conductivity for both heat and power (except graphite). Gases, liquids, or solids can all be non-metals.
Exist non-metal cations?Because of their high ionization energy, nonmetals do not normally form monatomic positive ions (cations) during chemical reactions. Examples of anions include the chloride ion, Cl-, the nitride ion, N3-, and the selenide ion, Se2-, which are all monatomic nonmetal ions.
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a 59.0 ml portion of a 1.50m solution is diluted to a total volume of 228ml. a 114 ml portion of that solution is diluted by adding 159ml of water. what is the final concentration? assume the volumes are additive.
The concentration terms are molality, normality and mole fraction. Molarity can be used to find out the ionic strength of any solution. Therefore, molarity of diluted solution is 0.27M.
What is molarity?Molarity can be calculated by dividing number of moles of solute by volume of solution in liter. Molarity is affected by temperature. Its unit is mole/liter. It measure the concentration of any solute in a solution.
Mathematically,
According to the neutralization law,
M₁V₁=M₂V₂
where,
M₁ = molarity of stock solution =1.50M
V₁ = volume of stock solution = 59.0 ml
M₂ = molarity of dilute solution =?
V₂ = volume of dilute solution =228ml
substituting all the given values we get
M₁V₁=M₂V₂
1.50M×59.0 ml=M₂×228
M₂=0.38M
Again diluting this solution
M₂×V₂=M₃×V₃
0.38×114=M₃×159
M₃=0.27M
Therefore, molarity of diluted solution is 0.27M.
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you need to make an aqueous solution of 0.164 m nickel(ii) sulfate for an experiment in lab, using a 125 ml volumetric flask. how much solid nickel(ii) sulfate should you add?
Aqueous solution is the category of fluid in which water serves as the solvent. Na+ Cl- is the symbol for a sodium chloride (NaCl) solution in water. Another name for sodium chloride is table salt (NaCl)
Aqueous does that imply liquid?The main distinction between a liquid and an aqueous substance is that a liquid is any fluid that is almost incompressible, whereas an aqueous substance is a liquid that contains a solvent such as water. Aqueous solutions are thus a class of liquid.
What is an example of an aqueous solution?Cola, saltwater, rain, acid, base, and salt solutions are a few examples of watery solutions. Any liquid that lacks water is an example of a solution that is not an aqueous solution.
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trans-2-butene is reacted with h3o . the product that is formed in this reaction sometimes has a potential chiral carbon. choose the answer that best describes this product.
The reagent might conceivably add to 1-butene, 2-methyl-2-butene, and 1-methylcyclohexene in two separate ways.
What is the purpose of trans 2-butene?Both the manufacturing of butadiene and indeed the creation of gasoline need trans-2-butene. Butanol and butanone are also made using some 2-butene. Butyl latex and polymers are made with trans-2-butene. Manufacturing of semiconductors makes usage of trans-2-butene.
How are cis and trans 2-butene related?Although cis-2 butene and trans-2 butene have differing physical qualities, they have similar chemical features. Although their chemical formulas are different, their characteristics vary as a result of their various configurations. Therefore, cis-2 butene and trans-2 isobutane are diastereomers in accordance with the query.
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What is the net redox reaction that occurs when ni comes into contact with h2so4?.
the net redox reaction that occurs when ni comes into contact with h2so4 is 0.43V
What is redox reaction?
Any chemical reaction in which the oxidation number of a participating chemical species changes is referred to as an oxidation-reduction reaction. The chemical reactions in which oxidation and reduction takes place are called redox reaction. The phrase refers to a wide range of processes.
Here,
[tex]Ni + SO_{2} ^{-4} + 4H^{+}[/tex] → [tex]Ni^{2+} + H_{2}SO_{3} + H_{2}O[/tex]
E°cell = E°[tex]_{cathode\\[/tex] - E°[tex]_{anode\\[/tex]
E°cell = [ +0.20-(-0.23)] V
E°cell = (0.20 + 0.23)
E°cell = 0.43V
the net redox reaction that occurs when ni comes into contact with h2so4 is 0.43V
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What is a radical function example?.
A function is referred to as a radical function if a radical expression defines it. F(x)=x f (x) = x is the square root function. The formula for the cube root is f(x)=3xf(x)=x3.
What does a radical equations example entail?y=x is the formula for the radical equation that is used the most frequently. The radical's power, or elevating both sides of the extreme equation to with an exponent equal toward the radical's order, is the inverse operation of such a rational equation. For instance, the inverse of the phrase x in x2.
What does the term "radical equation" mean?An equation with a variable beneath a radical is referred to as a radical equation. Isolate the radicals expression involving a variable for solve a radical equation. Determine which radical expression, if any, uses the variable.
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how many grams of primary standard grade sodium carbonate are necessary to prepare 2.00 l of a 0.0130 m na2co3 solution?
0.300 g of primary standard grade of sodium carbonate was required
what is primary standard grade ?
A primary standard in chemistry is a reagent that is exceedingly pure, indicative of the amount of moles in the material, and readily weighed. A reagent is a material that is used to initiate a chemical reaction with another substance. Reagents are frequently used to test for the presence or amount of certain compounds in a solution. Primary standards are commonly employed in titration and other analytical chemistry procedures to determine an unknown concentration. Titration is a chemical reaction that happens when modest quantities of a reagent are introduced to a solution. The reaction proves that the solution has a specified concentration. Primary standards are frequently used to create standard solutions, which have a specific concentration.
A good primary standard fulfils the following requirements:
Has a high purity level
It has a modest reactivity.
It has a large comparable weight.
Is unlikely to collect moisture from the air (hygroscopic) in order to decrease mass fluctuations in humid vs dry settings.
Is harmless, cheap, and widely accessible.
co3^2+2h---------->co2+h2o
1mole co3^2=2equivalates
normality=equivalates/2
0.300g
0.300 g of primary standard grade of sodium carbonate was required
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