at constant temperature, 7.72 l of cl2 at 458 mm hg is compressed to 3.75 l. what is the final pressure of cl2
Answers
At constant temperature, 7.72 L of cl2 at 458 mmHg is compressed to 3.75 L. The final pressure of Cl₂ is 942.86 mmHg.
To calculate the final pressure we can use the boyle's law
Boyle's Law:According to Boyle's Law, the relationship between a gas's volume and pressure is inverse. In other words, it says that as long as the number of gas moles remains constant, the product of pressure and volume for an ideal gas at constant temperature remains constant. P1V1=P2V2, where P1 is the first pressure, V1 is the first volume, P2 is the second pressure, and V2 is the second volume, is one way to state it.
So, the final pressure of Cl₂ can be calculate as follows:
P1V1=P2V2
458mmHg x 7.72 L = P2 x 3.75 L
P2 = 458mmHg x 7.72
3.75 L
P2 = 942.86 mmHg
Therefore, at constant temperature, 7.72 L of cl2 at 458 mmHg is compressed to 3.75 L. The final pressure of Cl₂ is 942.86 mmHg.
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Related Questions
11. Which do you think is more important in forming personality---environment or heredity? Explain your answer.
Answers
Answer:
I believe forming an environmental personality is more important than forming a hereditary personality. Why I said this is because of the people around out can change your personality, and sometimes if you're with the wrong people, it can go wrong, with your personality too. You could have been a nice person at some time, you bur you hung out with the wrong people and now you're just very inconsiderate. Another reason on why I believe forming an environmental personality is more important because of the fact that maybe you could've been born with a parent who has a bad personality. You could try your best to be nicer by the choice of people you choose to be friends with.
Explanation:
i hope this helped, im only in 7th
The Bromination of p-chlorophenyl isopropyl ether is to be done in a 20 liter batch reactor. Determine the time for a mixture containing 0.02 mol of p- chlorophenyl isopropyl ether and 0.018 mol of bromine to reach 65% conversion of p-chlorophenyl isopropyl ether given the following stoichiometry and rate expression 2A + B-> 2 C where A = p-chlorophenyl isopropyl ether, B = bromine and C = monobrominated product k1 = 2 lit/mol-min and k2 = 9200 (lit/mol)^2/min
Answers
The time required for a mixture containing 0.02 mol of p-chlorophenyl isopropyl ether and 0.018 mol of bromine to reach 65% conversion of p-chlorophenyl isopropyl ether is 31.1 minutes.
The rate law for this reaction is given by:
rate = k1[A][B]^2
where [A] is the concentration of p-chlorophenyl isopropyl ether, [B] is the concentration of bromine, and k1 is the rate constant.
At 65% conversion, 35% of the initial amount of p-chlorophenyl isopropyl ether remains, which is equivalent to 0.006 molding this is a second-order reaction with respect to bromine, the rate of the reaction can be expressed as:
rate = k1[A][B]^2 = k2[C][B]
where [C] is the concentration of the monobrominated product and k2 is the rate constant for the reaction of the mono brominated product with bromine.
At 65% conversion, the concentration of mono brominated product is 0.02 mol - 0.006 mol = 0.014 mol.
Substituting the concentrations and rate constants into the rate law, we get:
k1[A][B]^2 = k2[C][B]
2 k1 (0.02 mol) [B]^2 = k2 (0.014 mol) [B]
Solving for [B], we get:
[B] = (k2 / (2 k1)) (0.014 mol / 0.02 mol)^(1/2) = 0.000197 lit/mol
The time required to reach 65% conversion can be calculated using the integrated rate law for a second-order reaction:
t = 1 / (k1 [A]0) * (1 / (0.35 [A]0) - 1)
where [A]0 is the initial concentration of p-chlorophenyl isopropyl ether.
Substituting the values, we get:
t = 1 / (2 lit/mol-min * 0.02 mol) * (1 / (0.35 * 0.02 mol) - 1) = 31.1 min
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Choose all the right answers. The four major type of animal tissue are: epithelial, cytoplasmic, connective, muscular, support, nervous
Answers
Answer:
the four major type of animal tissue are:
connective tissue
nervous tissue
epithelial tissue
muscular tissue
a sample of nitrogen gas is confined to a balloon that has a volume of 1.88 l and a pressure of 1.334 atm. what will be the volume of the balloon if the pressure is changed to 0.662 atm? assume that the temperature and the amount of the gas remain constant.
Answers
The volume of the balloon is 3.788l.
Boyle's law:
Boyle's law state that the volume of a gas at constant temperature varies inversely with the pressure exerted on it.
The formula of Boyle's law:
P1V1 = P2 V2
P1 = 1.334atm
V1 = 1.88l
P2 = 0.662 atm
Putting the values in the equation we have:
1.334 × 1.88 = 0.662 × V2
V2 = 2.51/ 0.662
= 3.788 l
Therefore the volume is 3.788l
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FREE BRAINLIEST!!!!! You have two objects. One is hot the other is cold (lack of heat). In what direction does the heat want to travel?
Answers
Answer:
the heat wants to travel up. Heat rises
Explanation:
Provided below are pictures of three different scnearios in which two different chemicals are mixed together. for each scenario, make a claim about whether or not a chemical reaction is occuring. Provide evidence and reasoning to support your claim. If a reaction cannot be determined based on the provided picture, explain why not and how you could determine if a reaction has occured. Use specific examples in your explanation.
Answers
Looking at the images that we have, we can see that there is a reaction in the images A and C.
What is a reaction?We would need to settle in our minds what is implied when we talk about a chemical reaction. You have to know that if we are talking about a chemical reaction then we are talking about the kiondfs of reaction that would lead to the following observations;
1) There is a change in the temperature of the system
2) There is an effervescence of gas in the system
3) There is a change in color
4) There is the appearance of a solid in the system
We would now have to look at all the setups that we have here and we have to look at it in such a way that we could know if there is a reaction that is going on in any of them as shown.
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A carbohydrate chemist plans to use blocking groups and activating groups in a research project. What type of experiment is the chemist likely planning?
a. polysaccharide hydrolysis
b. exhaustive methylation
c. solid-phase oligosaccharide synthesis
d. liquid chromatography mass spectrometry/mass spectrometry analysis
e. nuclear magnetic resonance analysis
Answers
The chemist is likely planning a solid-phase oligosaccharide synthesis experiment.
Solid-phase oligosaccharide synthesis involves the stepwise assembly of carbohydrate chains on a solid support using blocking groups and activating groups. The blocking groups protect specific functional groups to ensure selective reactions, while the activating groups enhance the reactivity of certain functional groups during the synthesis process. This method allows for the controlled and sequential addition of monosaccharide units to build up complex oligosaccharide structures. The resulting oligosaccharides can then be analyzed using various techniques such as nuclear magnetic resonance (NMR) analysis, liquid chromatography mass spectrometry/mass spectrometry (LC-MS/MS) analysis, or other analytical methods to characterize their structure and properties.
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If I have 7.4 moles of gas at a pressure of 0.09 atm and at a temperature of 46 0C, what is the volume of the container that the gas is in?
Answers
Answer:
Answer is, 175.2 liters.
The Excellence Corporation for Servicing Excellence sells some of its office furniture on January 1, 2022. This furniture had a cost of $10,000 and accumulated amortization of $5,000 on that date. If the sold the asset for $6,000 the company would recognize:
Answers
If The Excellence Cοrpοratiοn fοr Servicing Excellence sells the οffice furniture fοr $6,000, they wοuld recοgnize a lοss οf $1,000 οn the sale.
How to calculate gain or loss?The recοgnitiοn οf the sale οf the οffice furniture by The Excellence Cοrpοratiοn fοr Servicing Excellence wοuld invοlve the fοllοwing:
The calculatiοn οf the gain οr lοss οn the sale:
Prοceeds frοm the sale: $6,000
Cοst οf the furniture: $10,000
Accumulated amοrtizatiοn: $5,000
Calculatiοn:
Gain/Lοss οn sale = Prοceeds frοm sale - (Cοst οf furniture - Accumulated amοrtizatiοn)
Gain/Lοss οn sale = $6,000 - ($10,000 - $5,000)
Gain/Lοss οn sale = $6,000 - $5,000
Gain/Lοss οn sale = $1,000
Determining the nature οf the gain οr lοss:
Since the prοceeds frοm the sale ($6,000) are less than the carrying value οf the asset ($10,000 - $5,000 = $5,000), a lοss will be recοgnized οn the sale.
Therefοre, if The Excellence Cοrpοratiοn fοr Servicing Excellence sells the οffice furniture fοr $6,000, they wοuld recοgnize a lοss οf $1,000 οn the sale.
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Sort the vocabulary word below. Make sure you have come to live session or watched the 5.03 recording. These words will be important to know for the rest of this unit.
Question 1 options:
This is a flow of electrons (such as the flow of electrons in a wire to light up a lamp).
These stop the electricity from flowing (think rubber and glass).
This is slowing the flow of electrons (the current) and where some of the electrons' energy gets converted into heat.
These allow electricity to flow easily through them (think copper and aluminum).
1.
Electric Current
2.
Resistance
3.
Conductor
4.
Insulator
(Sorry it's such a long question!)
Answers
Answer:
Electric Current
This is a flow of electrons (such as the flow of electrons in a wire to light up a lamp).
Insulator
These stop the electricity from flowing (think rubber and glass).
Resistance
This is slowing the flow of electrons (the current) and where some of the electrons' energy gets converted into heat.
Conductor
These allow electricity to flow easily through them (think copper and aluminum).
The half-life of radium is 1690 years. If grams are present now, how much will be present in years?.
Answers
Answer: ≈ 67.4 g
Explanation:
A(t) = amount remaining in t years = A0ekt, where A0 is the initial amount and k is a constant to be determined. Since A(1690) = (1/2)A0 and A0 = 80, we have 40 = 80e1690k 1/2 = e1690k ln(1/2) = 1690k k = -0.0004 So, A(t) = 80e-0.0004t Therefore, A(430) = 80e-0.0004(430) = 80e-0.172 ≈ 67.4 g
help me and explain steps
Answers
Answer:
2 Fe + 3 H2SO4 —> Fe2(SO4)3 + 3 H2
I hope I helped you^_^
Bruce, a research chemist for a major petro-chemical company, wrote a dense report about some new compounds he had synthesized in the laboratory from oil-refining by-products. The bulk of the report consisted of tables listing their chemical and physical properties, diagrams of their molecular structure, chemical formulas and data from toxicity tests. Buried at the end of the report was a casual speculation that one of the compounds might be a particularly safe and effective insecticide.
Seven years later, the same oil company launched a major research program to find more effective but environmentally safe insecticides. After six months of research, someone uncovered Bruce’s report and his toxicity tests. A few hours of further testing confirmed that one of Bruce’s compounds was the safe, economical insecticide they had been looking for.
Bruce had since left the company, because he felt that the importance of his research was not being appreciated.
What are the communication barriers and challenges that Bruce is facing?
Answers
Bruce faced communication barriers such as burying important information, ineffective presentation, limited dissemination, and lack of recognition, leading to missed opportunities and underappreciation of his research.
Communication barriers and challenges faced by Bruce include:
1. Lack of visibility: The crucial information about the safe insecticide was buried at the end of the report, making it less likely to be noticed or recognized.
2. Ineffective presentation: The report was dense and focused mainly on technical details, making it difficult for others to quickly grasp the potential significance of Bruce's findings.
3. Limited dissemination: Bruce's research and its importance were not effectively communicated or shared with the relevant stakeholders within the company, leading to a missed opportunity.
4. Departure from the company: Bruce leaving the company suggests a lack of recognition or appreciation for his research, which could have been mitigated through better communication and acknowledgment of his contributions.
Overall, the main communication barrier faced by Bruce was the ineffective communication of the potential value of his research, resulting in missed opportunities and a feeling of underappreciation. A clearer and more focused presentation of his findings, along with active communication and promotion within the company, could have enhanced the recognition and utilization of his work.
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what does expand mean in science
Answers
The relative number of atoms of a compound can be calculated
by dividing the percentage of an element by the:
Answers
Answer:
Obtain the relative numbers of atoms of each element in the compound by dividing the number of moles of each element in the 100 g sample by the number of moles of the element present in the smallest amount.
Answer:
Obtain the relative numbers of atoms of each element in the compound by dividing the number of moles of each element in the 100 g sample by the number of moles of the element present in the smallest amount.
select the different types of hazardous wastes. a corrosive
b flammable c nonpoisonous
d toxic
e chemically reactive
f natural
Answers
The different types of hazardous wastes include: a) Corrosive, b) Flammable, d) Toxic, e) Chemically reactive. Hazardous wastes are substances that pose a risk to human health or the environment.
They can be categorized into different types based on their properties and potential hazards.
Corrosive wastes are substances that can cause damage to metals or other materials through chemical reactions. They have a pH less than or equal to 2 or greater than or equal to 12.5.
Flammable wastes are substances that have a flashpoint below 60 degrees Celsius (140 degrees Fahrenheit). They can ignite easily and sustain combustion.
Toxic wastes are substances that can cause harm or death when ingested, inhaled, or come into contact with living organisms. They may contain toxic chemicals such as heavy metals, pesticides, or certain organic compounds.
Chemically reactive wastes are substances that can undergo violent reactions or release toxic gases when exposed to heat, pressure, or other substances. They may be unstable or prone to detonation.
Nonpoisonous wastes, as mentioned in option c, are not typically considered hazardous wastes since they do not possess Hazardous the inherent toxicity or potential hazards associated with the other types mentioned above.
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Zr + O ⇒
B + O ⇒
Zn + C ⇒
Co + I ⇒
Mg + Br ⇒
Answers
WHAT- WHAT GRADE R YOU IN 0,0
An element belongs to group 17 of the periodic table. This element is most likely a . A solid sample of this element would have a appearance.
Answers
The periodic table's group 17 substance is probably a halogen. This element would appear metallic or black in solid form.
What are the elements of the 17th group?The six elements in Group 17 of the periodic table compose the halogen elements. In the periodic table, group 17 is represented by the elements fluorine (F), chlorine (Cl), bromine (Br), iodine (I), astatine (At), and tennessine (Ts).
Why is Group 17 called halogens?From top to bottom, the group 17 elements are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), and astatine (At). They are known as "halogens" because when they interact with metals, they produce salts.
The elements that make up group 17 of the periodic table are the halogens. They are nonmetals that are reactive, such as iodine, bromine, chlorine, and fluorine. Halogens are non-metals that are very reactive. These substances share a lot of characteristics with one another.
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chemical reactions amplify 1.1 pre assessment
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Chemical reactions are the various types of permanent changes which occur in substances and which produce new substances .
What are chemical reactions?Chemical reactions are changes which occur in the arrangement of atoms in a substance resulting in the formation of new substances.
There are many types of chemical reactions such as:
combination reactionsdisplacement reactionsdecomposition reactionsoxidation reactionsdouble displacement reactionsThe various types of chemical reactions that occur contribute to the numerous compounds and substance in existence today.
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What name is given to the following reaction?
sucrose + water → glucose + fructose
A) glucogenesis
B) hydrolysis
C) denaturation
D) dehydration reaction
Answers
The sucrose is a disaccharide molecule. The reaction of sucrose with water is known as hydrolysis reaction. The products formed are glucose and fructose. The correct option is B.
What is Hydrolysis?The reaction which involves the breaking down of carbohydrates into smaller units through water molecule is defined as the hydrolysis reaction. The sucrose molecule is composed of two monosaccharide units. The molecular formula of sucrose is C₁₂H₂₂O₁₁.
The hydrolysis of sucrose generates an equimolar mixture of fructose and glucose, commercially it is called the invert sugar. This inverted sugar is more sweeter than sucrose.
Thus the correct option is B.
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the _________ in the equation means a reaction is happening
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A certain acid, HA, has a pKa of 6. What is the pH of a solution made by mixing 0.20 mol of HA with 0.30 mol of NaA? b. A certain acid, HA, has a pKa of 6. In the previous problem, you considered a solution made by mixing 0.20 mol of HA with 0.30 mol of NaA. What, now, would the pH be if 0.05 mol of NaOH were added to that solution? If you need to, assume the solution is at 25 oC, where the Kw is 1.0x10-14. c. A certain acid, HA, has a pKa of 6. What is the pH of a solution made by mixing 200 mL of 0.20 M HA (aq) with 300 mL of 0.30 M NaA (aq)? If you need to, assume the solution is at 25 oC, where the Kw is 1.0x10-14. d. A certain acid, HA, has a pKa of 6. In the previous problem, you considered a solution made by mixing 200 mL of 0.20 M HA (aq) with 300 mL of 0.30 M NaA (aq). What, now, would the pH be if 10 mL of 0.50 M HCl were added to that solution? If you need to, assume the solution is at 25 oC, where the Kw is 1.0x10-14.
Answers
In order to determine the pH in the given scenarios, several calculations and considerations need to be taken into account.Firstly, the Henderson-Hasselbalch equation can be used, which relates the pH of a solution to the pKa of the acid and the ratio of its conjugate base to the acid. This equation is pH = pKa + log([A-]/[HA]), where [A-] is the concentration of the conjugate base and [HA] is the concentration of the acid.
What are the calculations and considerations involved in determining the pH in the given scenarios?
The first problem asks for the pH of a solution made by mixing 0.20 mol of acid HA with 0.30 mol of its conjugate base NaA. The pH can be calculated using the Henderson-Hasselbalch equation, pH = pKa + log([A-]/[HA]). Given that the pKa is 6, we can plug in the values and solve for the pH.
The second problem asks for the pH after adding 0.05 mol of NaOH to the previous solution. Since NaOH is a strong base, it will react with the acid HA and form water.
The amount of NaOH added is small compared to the amount of acid, so we can assume that the acid will be fully neutralized. We can calculate the resulting concentration of the acid and its conjugate base and use the Henderson-Hasselbalch equation to find the new pH.
The third problem involves mixing 200 mL of 0.20 M HA with 300 mL of 0.30 M NaA. We need to calculate the concentrations of the acid and its conjugate base after mixing, and then use the Henderson-Hasselbalch equation to find the pH.
The fourth problem asks for the pH after adding 10 mL of 0.50 M HCl to the previous solution. Since HCl is a strong acid, it will completely dissociate and increase the concentration of the acid HA.
We need to calculate the new concentrations of the acid and its conjugate base and use the Henderson-Hasselbalch equation to find the new pH.
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If the free energy change delta G for a reaction is -46.11 kJ/mol, the reaction is:A) at equilibrium.B) endergonic.C) endothermic.D) exergonic.E) exothermic.
Answers
The reaction is exergonic. that is the free energy change delta G for a reaction is -46.11 kJ/mol, the reaction is exergonic.
Chemical thermodynamics, exergonic reactions are chemical reactions in which the change in free energy is negative (there is a net release of free energy).
This shows the spontaneous reaction when the system is closed and the initial and final temperatures are the same.
Reactions can be endergonic or exergonic. Endergonic reactions require heat or energy input. The exergonic reaction is the opposite. it gives off heat. Answer and Explanation:
Reactions with negative values of G are exergonic, meaning they release heat.
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An excess of Al and 6.0 mom of Br2 are reacted according to the equation How many moles of AlBr3 will be formed assuming 100% yield
Answers
Answer:
The equation for the reaction between Al and Br2 is:
2Al + 3Br2 -> 2AlBr3
If there is an excess of Al and 6.0 mol of Br2, then the limiting reactant will be Br2, and the number of moles of AlBr3 formed will be equal to the number of moles of Br2 consumed, which is 6.0 mol.
Therefore, assuming 100% yield, 6.0 mol of AlBr3 will be formed.
the chemical equation shown is an exothermic process. 2so2(g) o2(g)↽−−⇀2so3(g)exothermic
Answers
The given chemical equation is an exothermic process. Exothermic processes are those processes that release energy as heat or light.
In these reactions, the energy of the products is less than the energy of the reactants; hence, energy is released. The given chemical equation is:2SO2 (g) + O2 (g) → 2SO3 (g). This equation represents the reaction between sulfur dioxide (SO2) and oxygen (O2) to form sulfur trioxide (SO3). This reaction is exothermic because it releases heat.
The products, SO3, have a lower energy than the reactants, SO2 and O2. As a result, energy is released, and the temperature of the system increases. This is evident from the fact that the reaction is represented by an arrow pointing to the right-hand side (the products) and has a negative sign above the arrow indicating a negative change in energy.
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Cloud formation takes place during which phase of the water cycle?.
Answers
Answer:
condensation stage is when clouds form
Which reaction energy diagram below would be spontaneous?
Answers
How is a balanced chemical equation similar to a recipe? Explain
Answers
Explanation:
A balanced chemical equation is very similar to a recipe. Clicking on the s'more on the left will show you more of the similarities between cooking and stoichiometry. A balanced chemical equation gives you the ingredients (reactants) and the final food (products).
2. Which of the following shows the correct, balanced equation for the reaction shown below?
CH4+0₂H₂O + CO₂
O CH, + O, → CHO
O CH4 +20₂ → 2 H₂O + CO₂ OCH, + O2 → H2O +CO,
OCH4 +0₂ → CH₂0
Answers
The balanced equation is \(\text{CH}_{4}+2\text{O}_{2} \longrightarrow \text{CO}_{2}+2\text{H}_{2}\text{O}\).
The correct balanced chemical equation is CH₄ + 2 O₂\(\rightarrow\) CO₂ + 2 H₂O.
What is chemical equation?Chemical equation is a symbolic representation of a chemical reaction which is written in the form of symbols and chemical formulas.The reactants are present on the left hand side while the products are present on the right hand side.
A plus sign is present between reactants and products if they are more than one in any case and an arrow is present pointing towards the product side which indicates the direction of the reaction .There are coefficients present next to the chemical symbols and formulas .
The first chemical equation was put forth by Jean Beguin in 1615.By making use of chemical equations the direction of reaction ,state of reactants and products can be stated. In the chemical equations even the temperature to be maintained and catalyst can be mentioned.
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If you held the temperature and partial pressure of a gas over a liquid constant while doubling the volume of the liquid; select all true statements from the options below.
Answers
If you hold the temperature and partial pressure of a gas over a liquid constant while doubling the volume of the liquid, the following statements are true: It is important to note that these statements are true assuming other factors, such as temperature and pressure, remain constant.
1. The concentration of the gas in the liquid will decrease. When you double the volume of the liquid, the same amount of gas is spread over a larger space, resulting in a lower concentration.
2. The equilibrium between the gas and the liquid will shift towards the gas phase. As the volume of the liquid increases, the equilibrium will shift to compensate for the decrease in concentration.
3. The rate of evaporation of the liquid will increase. With the increase in volume of the liquid, more surface area is exposed to the gas phase.
4. The solubility of the gas in the liquid will decrease. Doubling the volume of the liquid will result in a decrease in the solubility of the gas.
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