would you expect an equilibrium vapor pressure to be reached above a liquid in an open container
Answers
In an open container, an equilibrium vapor pressure can be reached as long as the liquid has molecules capable of evaporating and the surrounding space allows for the escape and mixing of vapor molecules with the air.
Vapor pressure is the pressure exerted by the vapor molecules when the liquid and vapor are in equilibrium. It is a measure of the tendency of a liquid to evaporate. At any given temperature, molecules within the liquid have a range of kinetic energies. Some molecules have sufficient energy to overcome intermolecular forces and escape into the gas phase, forming vapor. As more molecules escape, the vapor density increases, creating a pressure known as the vapor pressure.
In an open container, the vapor molecules can freely escape into the surrounding space and mix with the air. Initially, the evaporation rate is high as molecules escape from the liquid surface. As the concentration of vapor molecules increases, collisions between the vapor and liquid surface also result in some molecules returning to the liquid phase, which is called condensation. Eventually, a dynamic equilibrium is established where the rate of evaporation and condensation become equal.
At this equilibrium, the vapor pressure above the liquid remains constant as long as the temperature is constant. The concentration of vapor molecules in the air above the liquid reaches a steady state, and the system is said to be saturated. The equilibrium vapor pressure is determined by the temperature and the characteristics of the liquid, such as its volatility and intermolecular forces.
Therefore, In an open container, an equilibrium vapor pressure can be reached above a liquid.
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Related Questions
5. The salts you tested were held together by ionic bonds. The compounds were made of two types of ions, positive and negative, that were attracted to each other because of their opposite charges. Some ionic bonds take more energy to break. Based on your investigation, which compounds have bonds that require the most energy to break?
Answers
Answer:
Lithium Iodide , Sodium Fluoride, Sodium Chloride, Sodium Bromide , Sodium Iodide, Potassium Fluoride and Potassium Chloride are the examples of ionic compounds.
Explanation:
Ionic compounds have bonds that require the most energy to break because of strong attractive force between them. According to scientists, about 700 to 4000 Kilo Joules energy is required to break bonds between ionic compounds whereas 800 to 1000 kilo joules energy is needed by the compounds having covalent triple bonds. So ionic compounds needs the most energy to break.
A jeweler has five rings, each weighing g, made of an alloy of silver and gold. She decides to melt down the rings and add enough silver to reduce the gold content to . How much silver should she add
Answers
Complete question :
A jeweler has five rings, each weighing 18 g, made of an alloy of 10% silver and 90% gold. She decides to melt down the rings and add enough silver to reduce the gold content to 75%. How much silver should she add?
Answer:
Kindly check explanation
Explanation:
Given the following :
Weight of each alloy = 18g
Initial % of Silver = 10% = 0.1
Initial % of Gold = 90% = 0.9
New % of gold = 75% = 0.75
Hence, new % of silver will be (1 - 0.75) = 0.25
Let the amount of silver to be added = s
Hence,
Initial gold content = final gold content + added silver
18 * 0.9 = 0.75(18 + s)
16.2 = 13.5 + 0.75s
16. 2 = 13.5 + 0.75s
16.2 - 13.5 = 0.75s
2.7 = 0.75s
s = 2.7 / 0.75
s = 3.6
S = 3.6
Hence the amount of silver needed per ring in other to reduce the gold content = 3.6g
Total for the 5 rings = (3.6 * 5) = 18g
A cylinder contains water to a level of 15.5. 20.0 grams of copper is dropped in. What will be the new height of the water? (Density of copper 8.96g/ml)
Answers
The new height of the water is 17.7 mL
The density of a substance is simply defined as mass per unit volume of the substance. Mathematically, it is expressed as:
Density = mass / volumeWith the above formula, we can obtain the volume of the copper. This can be obtained as follow:
Mass of copper = 20 g
Density of copper = 8.96 g/mL
Volume of copper =?Density = mass / volume
8.96 = 20 / volume
Cross multiply
8.96 × Volume = 20
Divide both side by 8.96
Volume = 20 / 8.96
Volume of copper = 2.2 mLFinally, we shall determine the new height of the water. This can be obtained as follow:
Initial height of water = 15.5 mL
Volume of copper = 2.2 mL
New height of water =?New height of water = (Initial height of water) + (Volume of copper)New height of water = 15.5 + 2.2
New height of water = 17.7 mLTherefore, the new height of the water is 17.7 mL
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What is metal ? Where does it coke from ?
Answers
Answer:
Most pure metals, like aluminium, silver and copper, come from the Earth's crust. They are found in ores – solid materials called minerals, usually occurring in rock, from which the pure metal has to be extracted. The properties of pure metals can be improved by mixing them with other metals to make alloys.a metal is an element that readily forms positive ions (cations) and has metallic bonds
coke is a strong stimulant made from coca leaves
HELP I WILL MARK BRAINLIESTT
Answers
Answer:
evaporation, condensation, precipitation, interception, infiltration, percolation, transpiration, runoff, and storage.
Use one of the picture below:
Question 11
Which formula represents a hydrocarbon?
C₂H6
C₂H5OH
C₂H5Cl
C₂H6O
Answers
Answer:
C₂H6
Explanation:
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). Option A
A hydrocarbon is a compound that consists of only carbon and hydrogen atoms. It is important to identify the formula that represents a hydrocarbon among the given options:
A) C₂H6: This formula represents ethane, which is a hydrocarbon. Ethane consists of two carbon atoms bonded together with single bonds and six hydrogen atoms.
B) C₂H5OH: This formula represents ethanol, which is not a hydrocarbon. Ethanol contains a hydroxyl group (-OH), indicating the presence of oxygen in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
C) C₂H5Cl: This formula represents ethyl chloride, which is not a hydrocarbon. Ethyl chloride contains a chlorine atom (Cl) in addition to carbon and hydrogen atoms. It is a haloalkane, not a hydrocarbon.
D) C₂H6O: This formula represents ethanol, which, as mentioned before, is not a hydrocarbon. Ethanol contains an oxygen atom (O) in addition to carbon and hydrogen atoms. It is an alcohol, not a hydrocarbon.
Among the given options, the formula A) C₂H6 represents a hydrocarbon (specifically, ethane). It consists only of carbon and hydrogen atoms, making it a suitable representation of a hydrocarbon.
In summary, the formula C₂H6 (option A) represents a hydrocarbon, while the other options contain additional elements (oxygen or chlorine) that make them non-hydrocarbon compounds. Option A
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What is significant about the temperature absolute zero?
Answers
Explanation:
The absolute temperature is the lowest possible temperature in the universe. At this temperature, all atoms become motionless and cease to move.
The value of the absolute zero is pegged at -273.16°C.
It is the lowest limit of the coldness of a body. Nothing can be colder than a body at absolute temperature. Many researches are underway to take advantage of this temperature value for scientific purpose. Thermodynamically, all process stops at this temperature. When a body is brought close a body at absolute zero, it can suffer cryogenic burn due to heat transfer.why do you wash lead (II) sulfate with distilled water in the preparation of lead sulfate?
Answers
Answer:
Explanation:
Mineral
The naturally occurring mineral anglesite, PbSO4, occurs as an oxidation product of primary lead sulfide ore, galena.
Basic and hydrogen lead sulfates
A number of lead basic sulfates are known: PbSO4·PbO; PbSO4·2PbO; PbSO4·3PbO; PbSO4·4PbO. They are used in manufacturing of active paste for lead acid batteries. A related mineral is leadhillite, 2PbCO3·PbSO4·Pb(OH)2.
At high concentration of sulfuric acid (>80%), lead hydrogensulfate, Pb(HSO4)2, forms.[4]
Chemical properties
Lead(II) sulfate can be dissolved in concentrated HNO3, HCl, H2SO4 producing acidic salts or complex compounds, and in concentrated alkali giving soluble tetrahydroxidoplumbate(II) [Pb(OH)4]2− complexes.
PbSO4(s) + H2SO4(l) ⇌ Pb(HSO4)2(aq)
PbSO4(s) + 4NaOH(aq) → Na2[Pb(OH)4](aq) + Na2SO4(aq)
Lead(II) sulfate decomposes when heated above 1000 °C:
PbSO4(s) → PbO(s) + SO3(g)
Sugar is easily soluble in water and has a molar mass of 342.30 g/mol. What is the molar concentration of a 264.0 mL aqueous solution prepared with 79.1 g of sugar
Answers
The molar concentration of a solution is determined by dividing the number of moles of solute by the volume of the solution in liters.
To find the molar concentration of the sugar solution, we need to follow these steps: Convert the mass of sugar from grams to moles. We can use the molar mass of sugar (342.30 g/mol) to calculate this.
MASS = 79.1 g
Molar mass of sugar = 342.30 g/mol
Number of = MASS / Molar mass
Number of moles = 79.1 g / 342.30 g/mol
Convert the volume of the solution from milliliters to liters.
VOLUME = 264.0 mL
Volume in liters = VOLUME / 1000
Volume in liters = 264.0 mL / 1000
The molar concentration of the sugar solution is X mol/L.
Then we convert the volume of the solution from milliliters to liters. Finally, we divide the number of moles of sugar by the volume of the solution in liters to calculate the molar concentration. The molar concentration of a solution represents the amount of solute present per unit volume of the solution. In this case, we are calculating the molar concentration of a sugar solution.
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categorize each compound as exhibiting ionic bonding or covalent bonding
Answers
Compounds can be categorized as exhibiting either ionic bonding or covalent bonding. Ionic bonding occurs when there is a transfer of electrons from one atom to another, resulting in ions with opposite charges being attracted to each other and forming a bond.
In contrast, covalent bonding occurs when atoms share electrons to fill their outermost electron shells and form a stable molecule. To determine whether a compound exhibits ionic or covalent bonding, one can consider the electronegativity difference between the atoms involved in the bond. If the electronegativity difference is large greater than 1.7, the bond is considered ionic.
If the electronegativity difference is small less than 1.7, the bond is considered covalent. For example, NaCl sodium chloride exhibits ionic bonding because the electronegativity difference between sodium and chlorine is 2.1, which is greater than 1.7. In contrast, H2O (water) exhibits covalent bonding because the electronegativity difference between hydrogen and oxygen is 1.4, which is less than 1.7.
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How did President Wilson anger civil rights advocates?
Answers
Answer:
He put segregationists in charge of federal agencies...
Explanation:
...
Answer:
He placed segregationists in charge of federal agencies.
Explanation:
Find how much mass is in 2.1 moles H2O
Answers
2.1 moles of \(H_2O\) will have a mass of 37.8 grams.
Moles and masses of substancesThe number of moles a substance contains and the mass of the substance are related by the following equation:
Mole = mass/molar mass
In other words, the mole of a substance is the ratio of the mass of the substance and its molar mass.
Rearranging the equation:
Mass = mole x molar mass.
In this case, we want to find the mass of 2.1 moles of water. The molar mass of water can be calculated as follows:
\(H_2O\) = (1 x 2) + 16
= 18 g/mol
Mass of 2.1 moles of water = 2.1 x 18
= 37.8 grams
In other words, 2.1 moles of water will have a mass of 37.8 grams.
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The element which has atomic number 17 is considered from... A. Metals B. Non-metals C. Noble gas D. No correct answer Please explain with your answer.
Answers
Answer:
B. Non-metals
Explanation:
The element with the atomic number of 17 is Cl.
Chlorine belongs to the group 7 in the periodic table. It is a non metal.
Correct option: B. Non-metals
Do you think a chemical reaction occurs every time two substances are placed together in a reaction vessel?
Answers
Answer:
Not necessarily.
Explanation:
what are four chemical and physical properties of phosphorus?
Answers
Answer:
Properties: The melting point of phosphorus (white) is 44.1°C, boiling point (white) is 280°C, specific gravity (white) is 1.82, (red) 2.20, (black) 2.25-2.69, with a valence of 3 or 5. There are four allotropic forms of phosphorus: two forms of white (or yellow), red, and black (or violet).Oct 7, 2019
Atomic Number: 15
Atomic Weight: 30.973762
Explanation:
: )
Answer:
Properties: The melting point of phosphorus
Atomic Number: 15
Atomic Weight: 30.973762
Discovery: Hennig Brand, 1669 (Germany)
what is chemical reaction?
Answers
Answer:
Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.
Explanation:
hope it helps
which energy sublevel is being filled by the elements ga to kr?
Answers
The energy sublevel being filled by the elements Gallium (Ga) through Krypton (Kr) is the 4p sublevel.
Here's a step-by-step explanation:
1. Locate Gallium (Ga) on the periodic table. It has an atomic number of 31.
2. Write down the electron configuration for Gallium: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p¹
3. Now, locate Krypton (Kr) on the periodic table. It has an atomic number of 36.
4. Write down the electron configuration for Krypton: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s² 3d¹⁰ 4p⁶
As you can see, the electron configurations for both Gallium and Krypton end with the 4p sublevel. This indicates that the elements between Ga and Kr, including them, are filling the 4p energy sublevel.
So, the correct answer is c. 4p.
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complete question:
Which energy sublevel is being filled by the elements Ga through Kr?
a. 3d
b. 4s
c. 4p
d. 4d
e. 4f
A solution contains 43 mEq/L of Cl- and 11 mEq/L of HPO4 2-. If the only cation in the solution is Na+, what is the Na+ concentration in mEq/L ?
a.11 mEq/L
b.32 mEq/L
c.54 mEq/L
d.2.0 mEq/L
e.43 mEq/L
Answers
Qiuzlet which shows the correct relationship between the molecular formula and the empirical formula for c2h10n2?
Answers
The correct relationship between the molecular formula and the empirical formula for C2H10N2 is that the empirical formula is CH5N.
The molecular formula represents the actual number of atoms of each element in a compound, while the empirical formula represents the simplest ratio of the atoms of each element in a compound. To determine the empirical formula, we need to divide the subscripts in the molecular formula by their greatest common divisor.
In the molecular formula C2H10N2, we divide the subscripts by 2 to get the simplest ratio. This gives us the empirical formula CH5N. The subscripts in the empirical formula represent the number of atoms of each element in one molecule of the compound.
Therefore, the correct relationship between the molecular formula C2H10N2 and the empirical formula CH5N is that the empirical formula represents the simplest ratio of atoms in the compound.
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17. the binding of the amino acid in aminoacyl-trna is a (n) a. amide c. hemiacetal b. ester d. ether
Answers
The binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond. Option b
Aminoacyl-tRNA is a complex molecule that plays a crucial role in protein synthesis. It consists of a tRNA molecule covalently linked to an amino acid. The amino acid is attached to the 3' end of the tRNA molecule through an ester bond.
An ester bond is formed between the carboxyl group (-COOH) of the amino acid and the hydroxyl group (-OH) of the ribose sugar at the 3' end of the tRNA molecule. This ester bond is also referred to as an ester linkage. The formation of the ester bond is catalyzed by the enzyme aminoacyl-tRNA synthetase.
The ester bond in aminoacyl-tRNA is essential for protein synthesis. During translation, the aminoacyl-tRNA molecule carries the specific amino acid to the ribosome, where it is incorporated into the growing polypeptide chain. The ester bond is later hydrolyzed, releasing the amino acid for further use in protein synthesis.
In summary, the binding of the amino acid in aminoacyl-tRNA involves the formation of an ester bond between the carboxyl group of the amino acid and the hydroxyl group of the ribose sugar in the tRNA molecule.
Option b
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Balance the Chemical Equation. Fill in the Missing Coefficients. GeF3 + Cs = CsF + Ge
Answers
DONT HATE ME IF ITS WRONG PLS
Where do meteorologists obtain the data they use to make a
weather forecast?
Answers
Answer:
doppler radar, radiosondes, weather satellites, buoys
When a drawing of a circle made in the center of a piece of paper with a black marker gets wet, the marker bleeds, and as the water moves through the paper the ink separates into several colors.
What method of separation does this describe?
evaporation
distillation
filtration
chromatography
Answers
Answer:
D) Chromatography
Explanation:
Answer: It is D. chromatography.
Step-by-step explanation:
when water or dye passes through a medium and changes color then that means it must be chromatography.
determine the number of moles of gas in a 2.01 l container at 287.4 k and a pressure of 1.36 atm. round your answer to two decimal places.
Answers
There are 2.63 moles of gas in a 2.01 l container at 287.4 K and a pressure of 1.36 atm. Rounding the answer to two decimal places gives us 2.63 moles.
What is pressure ?Pressure is a force per unit area applied to an object. It is measured in units such as pascals (Pa), atmospheres (atm), millimeters of mercury (mmHg), and pounds per square inch (psi). Pressure is typically caused by the weight of the atmosphere pressing down on an object, or by a fluid pushing against the object. Pressure can also be created by the movement of the object, such as when a liquid is stirred or when a gas is compressed. When pressure is applied, it can cause objects to deform, move, or change shape.
The number of moles of gas in a 2.01 l container can be determined by using the ideal gas law equation, PV = nRT, R is the ideal gas constant, and T is the temperature in Kelvin. Plugging in the given values, we get:1.36 atm * 2.01 L = n * 0.0821 * 287.4 K
Solving for n, we get,n = (1.36 atm * 2.01 L) / (0.0821 * 287.4 K)
n = 2.63 moles.
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What is CO2 used for in industry?
Answers
As an example of how CO2 is utilized in industry, it is employed as an inert gas in welders and flame extinguishers, as just a pressurizing gas for air cannons and oil recovery, as a supercritical solvent in coffee decaffeination and supercritical drying.
What is the purpose of CO2?Chemical intermediaries, such as methanol, syngas, & formic acid, can be produced from CO2 using a variety of catalysts. These molecules subsequently act as feedstocks in those other industrial processes.Additionally, CO2 can be converted by catalysts to polymers, which serve as building blocks for plastics, adhesives, & medications.
What is the industrial usage of carbon?The creation of ethanol, fertilizer, natural gas processing, hydrogen synthesis in refineries, and, most recently, coal-fired power generation are among the industrial processes where large-scale carbon capture has been shown and is currently in use.
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50 points - I need this really soon! plz help
The pictured compound has which bond?
A.) C = C and C −C
B.) C = C and C −H
C.) C −Cand C −H
D.) C −C, C −H, and C −O
Answers
Answer:
C.
Explanation:
Butane (C4H10) has 3 C-C bonds in the carbon chain and 10 C-H bonds
Butane (\(C_4H_10\)) has 3 C-C bonds in the carbon chain and 10 C-H bonds
What is alkane?Alkanes are saturated hydrocarbons. This means that their carbon atoms are joined to each other by single bonds.
Based on the diagram, butane is considered to be an alkane. It not only contains single covalent bonds, but also has carbon and hydrogen atoms present in its structure.
When comparing both structures to one another, isobutane is a branched chain, while butane is a linear chain.
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Electromagnetic vs. Mechanical Waves 1?
Answers
Answer:
example of electromagnetic waves water waves and sound wave.
Types of mechanical waves are transverse and longitudinal wave...
Why do your body and your cells need water?
Answers
Explanation:
Water the essential constituent of protoplasm of living cells because it is directly involved in countless biochemical reactions like photosynthesis and respiration without it cells couldn't move waste and by-products taking nutrients perform intracellular Transportation functioning and signaling
When an alcohol is diluted in a solvent that cannot form hydrogen bonds with the alcohol, which of the following changes is expected for the IR absorption signal for the O–H bond? Select all that apply. A : Cause the peak to narrow. B : Shift the peak to a higher wavenumber. C : Shift the peak to a lower wavenumber. D : Cause the peak to broaden.
Of the following statements regarding the base peak in a mass spectrum, which are always true. Select all that apply.
A : The base peak is the tallest peak in the spectrum.
B : The base peak corresponds to the peak with the smallest m/z.
C : The base peak corresponds to the peak with the largest m/z.
D : The base peak is furthest to the right.
E : The base peak may not be present in spectrum.
F : The base peak corresponds to the most abundant ion.
please select from the highlighted ones in (). The presence of a bromine atom in a molecule will produce a mass spectrum with an (M+2)+• peak that is approximately (equal to or one-third or one-half) the intensity of the molecular ion peak because the 79Br isotope is found in (equal or greater or less) abundance compared to the 81Br isotope.
Answers
When an alcohol is diluted in a solvent that cannot form hydrogen bonds with the alcohol, the IR absorption signal for the O-H bond is expected to (B) shift to a higher wavenumber and (D) cause the peak to broaden.
This is because hydrogen bonding between alcohol and solvent causes a decrease in the strength of the O-H bond, which is reflected in the IR spectrum as a shift to a lower wavenumber and a narrowing of the peak. However, in the absence of hydrogen bonding, the O-H bond is stronger and the peak shifts to a higher wavenumber and broadens.
The base peak in a mass spectrum corresponds to the (F) most abundant ion and may not necessarily be the tallest or smallest/largest m/z value or furthest to the right. The base peak is the peak that has the highest intensity and represents the ion that is most commonly produced during the ionization process.
The presence of a bromine atom in a molecule will produce a mass spectrum with an (M+2)+• peak that is approximately (one-third) the intensity of the molecular ion peak because the 79Br isotope is found in (less) abundance compared to the 81Br isotope. This is because the natural abundance of 81Br is only about one-third of that of 79Br.
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Find the density of this unknown material Mass: 45 g
Answers
Answer:
Does it question provide the volume? To find density you need to divide the mass by the volume (d=m/v).
Explanation: