Answer:
180.156 g
Glucose has six carbons, twelve hydrogens, and six oxygen atoms. Using the periodic table, the atomic weight of C, H, and O are obtained. So the molar mass of C6H12O6 is 72.06 g + 12.096 g + 96.00 g = 180.156 g or 180.16 g
The molar mass of glucose (C6H12O6) is calculated by summing the molar masses of its constituent atoms, carbon, hydrogen, and oxygen, resulting in a total molar mass of 180.0 g/mol.
Explanation:The question asks for the molar mass of glucose with the chemical formula C6H12O6. The molar mass of a compound is calculated by summing the molar masses of its constituent atoms. Given the atomic masses of Hydrogen (H) as 1.0 g/mol, Carbon (C) as 12.0 g/mol, and Oxygen (O) as 16.0 g/mol, we calculate the molar mass of glucose as follows:
Carbon (C): 6 atoms × 12.0 g/mol = 72.0 g/molHydrogen (H): 12 atoms × 1.0 g/mol = 12.0 g/molOxygen (O): 6 atoms × 16.0 g/mol = 96.0 g/molAdding these values gives a total molar mass of 180.0 g/mol for glucose. This calculation is crucial for understanding how much glucose is needed for chemical reactions and solutions in both laboratory and real-world applications.
The melting point of an ionic compound will increase as which of the following increases
Answer:
Charge of the ions and size of the ions
Explanation:
Answer:
Lattice Energy
Explanation:
Melting point is the temperature at which a solid changes into a liquid.
The process is called as Melting.
Lattice energy is the energy required by an ionic compound in order to overcome the electrostatic force which is existing between the oppositely charged ions.
Ionic compound which has a strong electrostatic force will have high melting point .
Energy required to break the ionic bond or the Lattice array is more.
Lattice energy depends on two main factors
1) charge of the ions and
2) size of the ions
Lattice energy increases with the increase in charge.
For example Lattice energy of MgO is larger than NaCl.
Mg and O have 2+ and 2- charges respectively
Na and Cl have 1+ and 1- charges.
Lattice energy increases with decrease in size of the ions.
For example NaCl Lattice energy is larger than KBr.
[tex]Na^+[/tex] is smaller than [tex]K^+[/tex] ion
[tex]Cl^-[/tex] is smaller than [tex]Br^-[/tex]
A sample of neon has a volume of 40.81 m3 at 23.5C. At what temperature, in Kelvins, would the gas occupy 50.00 cubic meters? Assume pressure is constant.
At [tex]\fbox{\begin \\363 K \end{minispace}}[/tex] temperature, a sample of neon gas will occupy [tex]50.00 \text{ m}^{3}[/tex] volume.
Further Explanation:
The given problem is based on the concept of Charles’ law. Charles’ law states that “at constant pressure and fixed mass the volume occupied an ideal gas is directly proportional to the Kelvin temperature.”
Mathematically the law can be expressed as,
[tex]\fbox{ \begin \\ V \propto T \end{minispace}}[/tex]
Or,
[tex]\frac{V}{T}=k[/tex]
Here, V is the volume of the gas, T is Kelvin temperature, and k is proportionality constant.
Given information:
The initial volume of neon gas is [tex]40.81 \text{ m}^{3}[/tex] .
The final volume of neon gas is [tex]50.00 \text{ m}^{3}[/tex].
The initial temperature value is [tex]23.5 \text{ } ^{\circ} \text{C}[/tex] .
To calculate:
The final temperature
Given Condition:
The pressure is constant.Mass of gas is fixed.Solution:
Step 1: Modify the mathematical expression for Charles’ law for two different temperature and volume values as follows:
[tex]\frac{V_{1}}{T_{1}}=\frac{V_{2}}{T_{2}}[/tex]
Here,
[tex]V_{1}[/tex]is the initial volume of the gas.[tex]V_{2}[/tex] is the final volume of the gas.[tex]T_{1}[/tex] is the initial temperature of the gas.[tex]T_{2}[/tex] is the final temperature of the gas.Step 2: Rearrange equation (2) for .
[tex]\fbox {\begin \\T_{2}=\frac{(V_{2}) \times (T_{1})}{V_{1}}\\\end{minispace}}[/tex] …… (2)
Step 3: Convert the given temperature from degree Celsius to Kelvin.
The conversion factor to convert degree Celsius to Kelvin is,
[tex]T(\text{K}) = T(^{\circ}\text{C}) + 273.15[/tex] …… (3)
Substitute [tex]23.5\text{ }^{\circ} \text{C}[/tex] for [tex]T(^{\circ}\text{C})[/tex] in equation (3) to convert temperature from degree Celsius to Kelvin.
[tex]T(\text{K}) = 23.5 \text{ } ^{\circ} \text{C} + 273.15\\T(\text{K})= 296.65 \text{ K}[/tex]
Step 4: Substitute [tex]40.81 \text{ m}^{3}[/tex] for [tex]V_{1}[/tex] , [tex]50.00 \text{ m}^{3}[/tex] for [tex]V_{2}[/tex] and [tex]296.65 \text{ K}[/tex] for [tex]T_{1}[/tex] in equation (2) and calculate the value of [tex]T_{2}[/tex] .
[tex]T_{2}=\frac{(50.00 \text{ m}^{3}) \times (296.65 \text{ K})}{40.81 \text{ m}^{3}}\\T_{2}=363.45 \text{ K}\\T_{2} \approx 363 \text{ K}[/tex]
Important note:
The temperature must be in Kelvin.The condition of fixed mass and fixed pressure must be fulfilled in order to apply Charles’ law.Learn More:
1. Gas laws https://brainly.com/question/1403211
2. Application of Charles’ law https://brainly.com/question/7434588
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: States of matter
Keywords: neon, volume, occupies, temperature, Kelvin, degree Celsius, Charle’s law, constant pressure, fixed mass, 40.81 m^3 , 50.00 m^3 , 23.5 degree C , celsius , 363 K , sates of matter, initial volume, final volume, initial temperature, final temperature, V1 , V2 , T1 , T2 .
At 363.27 degrees temperature, in Kelvins, the gas occupies 50.00 cubic meters.
What is Charles' Law?Charles' law (also known as the law of volumes) is an experimental gas law that describes how gases tend to expand when heated.
To calculate the final temperature of the system, we use the equation given by Charles' Law. This law states that the volume of the gas is directly proportional to the temperature of the gas at constant pressure.
Mathematically,
[tex]\frac{V_1}{T_1} = \frac{V_2}{T_2}[/tex]
where,
[tex]V_1[/tex] and [tex]T_1[/tex] are the initial volume and temperature of the gas.
[tex]V_1[/tex]and [tex]T_2[/tex] are the final volume and temperature of the gas.
Apply Charles' Law which states that the volume of a gas at constant pressure is directly proportional to the Kelvin temperature.
23.5 C = 273 + 23.5 = 296.5 degrees K.
40.81 / 296.5 = 50 ÷ x where x is the required temperature.
x = 363.27 degrees.
Hence, At 363.27 degrees temperature, in Kelvins, the gas occupies 50.00 cubic meters.
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A student plans to prepare 3.0 liters of 0.50 m naoh solution from a 6.0 m naoh stock solution, how many millilters of stock solution should the student use
Answer : The volume of NaOH stock solution used should be, 250 ml
Solution :
According to the neutralization law,
[tex]M_1V_1=M_2V_2[/tex]
where,
[tex]M_1[/tex] = molarity of NaOH solution = 0.50 M
[tex]V_1[/tex] = volume of NaOH solution = 3.0 L
[tex]M_2[/tex] = molarity of NaOH stock solution = 6.0 M
[tex]V_2[/tex] = volume of NaOH stock solution = ?
Now put all the given values in the above law, we get the volume of NaOH stock solution.
[tex](0.50M)\times (3.0L)=(6.0M)\times V_2[/tex]
[tex]V_2=0.25L=250ml[/tex] (1 L = 1000 ml)
Therefore, the volume of NaOH stock solution used should be, 250 ml
In both physical and chemical changes,
a. energy can be gained or lost.
b. matter is created
c. matter is destroyed
d. Both a and b
rite your answers on the lines below.
Answer:
option a. energy can be gained or lost.Explanation:
Energy can be gained or lost in both physical and chemical changes.
Most physical changes involve energy gain or loss. For example:
Melting: for a substance to change from solid to liquid, the substance has to gain energy to increase the kinetic energy of the particles and they can overcome the forces of attraction and separate.Similar reasoning can be made about freezing, evaporation, condensation, and many other physical changes.
As per chemical changes, in order to the reactant substances break their bonds energy must be gained, and as new bonds are formed to constitute the product substaces energy is loss. The net change of energy will tell if the reaction is endothermic (net gain of energy) or exothermic (net release or loss of energy).
In order to meet the energy conservation law, the energy that is gained or lost by a substance is lost or gained by other substance.
As per the options b. and c. the law of conservation of mass states that energy can be never be created or destroyed, so those options are incorrect.
Which of the following is not among the three likely sources of heat during the formation of the Earth?
Answer:
Constant volcanic eruption
Explanation:
What are two ways selective breeding is helpful in agriculture
Answer:
1: it can produce crops that are resistant to pest
2: it can result in animals that can produce more food
Explanation:
i had the same question
What would cause the shape of a molecule to be tetrahedral?
A. Three atoms bound to a central atom with one lone pair
B. Four atoms bound to a central atom with two lone pairs
C. Four atoms bound to a central atom with no lone pairs
D. Two atoms bound to a central atom with two lone pairs
Answer:
A molecule is tetrahedral if the central atom has four bonds and no lone pairs. Explanation: ... The electron pairs in the bonds repel the electrons in the other bonds, so they all try to get as far from each other as possible.
According to the molecular geometry,four atoms bound to a central atom with no lone pairs would cause the shape of a molecule to be tetrahedral.
What is molecular geometry?
Molecular geometry can be defined as a three -dimensional arrangement of atoms which constitute the molecule.It includes parameters like bond length,bond angle and torsional angles.
It influences many properties of molecules like reactivity,polarity color,magnetism .The molecular geometry can be determined by various spectroscopic methods and diffraction methods , some of which are infrared,microwave and Raman spectroscopy.
They provide information about geometry by taking into considerations the vibrational and rotational absorbance of a substance.Neutron and electron diffraction techniques provide information about the distance between nuclei and electron density.
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If a certain compound has a formula H2X . What is the Valency of X ?
Answer:
2
Explanation:
The valency of an atom is the number of H atoms to which it can bond.
An atom of X can bond to two H atoms, so the valency of X is 2.
Write 126.7 g in scientific notation
The expression of 126.7 g in scientific notation results in 1.267 x 10^-1 kg.
To write 126.7 g in scientific notation, we need to convert it to kilograms. Since the base unit of mass in the SI system is the kilogram, we can express 126.7 g as 1.267 × 10-1 kg in scientific notation. Therefore, 126.7 g in scientific notation is 1.267 × 10-1 kg.
How are the wavelength and frequency of a wave related?
metuency increases wavelength increases
requency increases wavelength decreases
wavelength remains constant as frequency changes
wavelength and frequency are not related
Answer:
frequency increases as wavelength decrease.
Explanation:
frequency = velocity/wavelength
Answer:
Frequncy increases, wavelength decreases
Explanation:
A wave can be defined as the repetitive pattern of a travelling energy. Waves can also be defined as a disturbance from equilibrium (or rest) of a medium which oscillates along a stable region. Examples of waves include: seismic waves, gravitational waves, shock waves, heat waves, sound waves etc
In a standing wave (ie at different points of the wave, amplitude is constant), its properties are:
Amplitude which is the the distance of the disturbance from equilibrium. It can also be defined as the distance between the highest point of the wave(peak or crest) to the lowest point (trough).
Wavelength(lambda) is the distance between one peak to the next peak or one trough to another trough parallel to the direction of propagation.
Frequency, f is the number of times a wave passes a particular point per unit time.
Wave velocity is the speed at which disturbance moves. It can given as an equation:
V = f*(lambda)
It can also be written as:
f = V/(lambda)
From the relationship above,
We can see that an increase in frequency of the wave would lead to a decrease in its wavelength and vice versa.
As the number of solute particles in a solution increases, the effect on the freezing point of the solution increases. Which ionic compound will lower the freezing point the most if 1 mol of it is added to 1 L of water?
NaCl
MgCl2
KBr
AlCl3
Answer:
AlCl₃.
Explanation:
Adding solute to water causes depression of the boiling point.
The depression in freezing point (ΔTf) can be calculated using the relation:
ΔTf = i.Kf.m,
where, ΔTf is the depression in freezing point.
i is the van 't Hoff factor.
van 't Hoff factor is the ratio between the actual concentration of particles produced when the substance is dissolved and the concentration of a substance as calculated from its mass. For most non-electrolytes dissolved in water, the van 't Hoff factor is essentially 1.
Kf is the molal depression constant of water.
m is the molality of the solution (m = 1.0 m, for all solutions).
(1) NaCl:
i for NaCl = no. of particles produced when the substance is dissolved/no. of original particle = 2/1 = 2.
∴ ΔTb for (NaCl) = i.Kb.m = (2)(Kf)(1.0 m) = 2(Kf).
(2) MgCl₂:
i for MgCl₂ = no. of particles produced when the substance is dissolved/no. of original particle = 3/1 = 3.
∴ ΔTb for (MgCl₂) = i.Kb.m = (3)(Kf)(1.0 m) = 3(Kf).
(3) NaCl:
i for KBr = no. of particles produced when the substance is dissolved/no. of original particle = 2/1 = 2.
∴ ΔTb for (KBr) = i.Kb.m = (2)(Kf)(1.0 m) = 2(Kf).
(4) AlCl₃:
i for AlCl₃ = no. of particles produced when the substance is dissolved/no. of original particle = 4/1 = 4.
∴ ΔTb for (CoCl₃) = i.Kb.m = (4)(Kf)(1.0 m) = 4(Kf).
So, the ionic compound will lower the freezing point the most is: AlCl₃.
Answer: AlCl₃. :) de nada
For the reaction below, describe the temperature and pressure conditions that would produce the highest yield for the forward reaction. Explain your answer in terms of Le Châtelier’s principle.
CO (g) + 2 H2 (g) Two arrows stacked on top of each other. The top arrow points to the right. The bottom arrow points to the left. CH3OH (g) deltaH = -90.7 kJ/mol
Answer:
Explanation:
The complete reaction equation is given as:
CO + 2H₂ ⇄ CH₃OH ΔH = -90.7kJmol⁻¹
From the reaction equation, we know that:
the reactants are in gaseous phases. Carbon monoxide(CO) and Hydrogen gas are gases. the reaction is an exothermic reaction beceause ΔH is negative. Heat would be liberated to the surroundings in this kind of reaction.According to Le Chatelier's principle, we know that "if any of the conditions of a system in equilibrium is changed, the system will adjust itself in order to annul the effect of the change".
For pressure changes:
A change in pressure affects only equilibrium involving a gas or gases. An increase in pressure will shift the position of equilibrium to the side having smaller volume(or mole) and vice versa.
CO + 2H₂ ⇄ CH₃OH
3 moles of gases 1 mole of gas
An increase in pressure will favor the production of more methanol since we have 3 moles of gas on the left hand side and just one mole of gas on the right hand side.
For temperature changes:
A rise in temperature shifts equilibrium to the direction that absorbs heat and vice versa. Since the reaction is exothermic in the forward reaction, a rise in temperature will favor the forward reaction. This would lead to the production of more methanol gas. A decrease in temperature will favor the backward reaction.
Absolute zero is
the freezing point of water using the Celsius scale
the freezing point of liquid nitrogen
the temperature on the Kelvin scale corresponding to 32 °F
the coldest temperature possible
the boiling point of liquid nitrogen
Absolute zero is the lowest possible temperature and is the temperature at which all molecular motion ceases. It is measured on the Kelvin scale, where water freezes at 273 K and boils at 373 K.
Explanation:Absolute zero is the lowest possible temperature and is the temperature at which all molecular motion ceases.
It is measured on the Kelvin scale, where water freezes at 273 K and boils at 373 K, with 0 K being absolute zero.
This temperature is significant in scientific work and is used in fields such as astronomy
Final answer:
Absolute zero is the theoretical temperature at which molecular motion stops, corresponding to 0 K, -273.15°C, or -459.67°F. It is the starting point of the Kelvin scale. The Celsius scale, more common in daily usage, has water's freezing point at 0°C and boiling point at 100°C.
Explanation:
Absolute zero is defined as the coldest possible temperature, a theoretical limit where all molecular motion ceases. This temperature corresponds to 0 Kelvin (K) on the Kelvin temperature scale and is equivalent to approximately -273.15 degrees Celsius (°C) and -459.67 degrees Fahrenheit (°F). The Kelvin scale is an absolute temperature scale used primarily in the sciences.
The Celsius scale is another temperature scale which is used widely around the world. On this scale, the freezing point of water is 0°C and the boiling point is 100°C at standard atmospheric pressure. This scale is more commonly used in daily life, but in scientific contexts, especially when dealing with thermodynamic temperature, the Kelvin scale is preferred because it starts from this absolute zero point.
To convert from Celsius to Kelvin, one simply adds 273.15 to the Celsius temperature. This is because the size of one unit on both the Celsius and Kelvin scales is the same; the only difference is their starting points (0°C is equivalent to 273.15K).
Percent Composition Calculations
The Mole
What is the percent of Hin
NH3?
(H = 1.008 amu, N = 14.01 amu)
[?]%
Answer:
[tex]\boxed{\text{17.76 \% by mass}}[/tex]
Explanation:
[tex]\text{The mass of one molecule of NH$_{3}$ is:}\\\text{14.01 u N + 3.024 u H = 17.034 u}\\\\\text{mass $\%$ H} =\dfrac{3.024}{17.034} \times 100 \%} =\textbf{17.76 \%}\\\\\text{Ammonia contains }\boxed{\textbf{17.76 \% H by mass}}[/tex]
If the average adult woman consumes approximately 2,000 kcal per day, how long would she need to run in order to utilize 25 percent of her caloric intake, given that the energy requirement for running is 42,000 J per minute?
Answer:
Explanation:
She would have about 21,000 back
What is biodiversity?
Answer:
Biodiversity is the variety of life in the world or in a particular habitat or ecosystem.
Explanation:Biodiversity is the shortened form of two words "biological" and "diversity." It refers to all the variety of life that can be found on Earth (plants, animals, fungi and micro-organisms) as well as to the communities that they form and the habitats in which they live.
Final answer:
Biodiversity represents the variety and complexity of life on Earth, encompassing the many species, genetic variations, and ecosystems.
Explanation:
Biodiversity refers to the variety of life and its processes, which includes the diversity of living organisms, the genetic differences among them, and the communities and ecosystems in which they occur. The term encompasses everything from the smallest bacteria to the largest plants and animals.
While scientists have identified about 1.9 million species, it is estimated that the true number of species ranges from 5 to 30 million. This diversity can be measured at three levels: species diversity, genetic diversity, and ecosystem diversity. Biodiversity is essential as it contributes to the resilience of ecosystems and to our planet's overall health.
Which feature is common to prokaryotic and eukaryotic cells?
cell nuclei
complex structures
organelles
cell membranes
Answer:
Cell membranes
Explanation:
Cell membranes is a feature that is common to prokaryotic and eukaryotic cells.
Answer:cell membranes
Explanation:
How many moles are there in 4.00 g of ethanol, CH 3CH 2OH?
Answer:
there are 0.087 moles of ethanol in a 4.00 G sample of ethanol
Explanation:
Number of moles present in a substance is equal to the mass divided by molar mass.
Mathematically, No. of moles = [tex]\frac{mass}{\text{molar mass}}[/tex]
As it is given that mass is 4.00 g and molar mass of [tex]CH_{3}CH_{2}OH[/tex] is 46.07 g/mol.
Hence, calculate the number of moles of [tex]CH_{3}CH_{2}OH[/tex] as follows.
No. of moles = [tex]\frac{mass}{\text{molar mass}}[/tex]
= [tex]\frac{4.0 g}{46.07 g/mol}[/tex]
= 0.086 mol
Thus, we can conclude that number of moles of [tex]CH_{3}CH_{2}OH[/tex] present in 4.00 g is 0.086 mol.
An element has two isotopes. One has a mass of 5.03 amu and an abundance of 25%, the other has a mass of 7.20 amu and an
abundance of 75%. What is the average atomic mass of the element?
Answer:
Average atomic mass = 6.6575.
Explanation:
As fractions the abundance is 1/4 and 3/4.
The average atomic mass = (5.03 + 3(7.20) / 4
= 6.6575.
What is agovado constant
If it requires 35.0 milliliters of 0.50 molar NaOH to neutralize 25.0 milliliters of HCl, what is the concentration of the HCl solution? (3 points)
Balanced equation: NaOH + HCl yields NaCl + H2O
0.36 M HCl
0.70 M HCl
1.1 M HCl
1.4 M HCl
Answer:
0.7M
Explanation:
Volume of NaOH = 35mL = 0.035L
Concentration of NaOH = 0.5M
Volume of HCl = 25mL = 0.025L
Concentration of HCl = ?
Solution;
The balanced equation of the reaction is shown below:
NaOH + HCl → NaCl + H₂O
To solve this problem, we solve from the known to the unknow. The known here is the parameters of NaOH. From here, we can find the number of moles;
Number of moles of NaOH = concentration x volume= 0.035 x 0.5
= 0.0175mole
From the balanced reaction equation, we can state that:
1 mole of NaOH reacted with 1 mole of HCl
0.0175mole of NaOH will reacted with 0.0175mole of HCl
Now that we know the number of moles of the acid used, we can calculate the concentration of the acid used using the expression below:
Concentration of acid = [tex]\frac{number of moles of acid}{volume of acid}[/tex]
Concentration of acid= [tex]\frac{0.0175}{0.025}[/tex] = 0.7M
The nucleus of an atom consists of
A. Protons ans neutrons
B. Neutrons alone
C. Protons and electrons
D. Neutrons and electrons
Answer:
The nucleus of an atom consists of Protons and Neutrons.-A.
which organelles surround the cell?check all that apply
a) cell wall
b) cell membrane
c) nucleus
d) endoplasmic reticulum
e) ribosome
Answer:
cell walls
Explanation:
because the rigid structure that surrounds the cell membrane and provides support to the cells
Answer:
A. Cell wall
B. Cell membrane
Hope this Helps!
What is the final pressure (expressed in atm) of a 3.05 l system initially at 724 mm hg and 298 k, that is compressed to a final volume of 2.60 l at 273
Answer:
P2 = 778.05 mm Hg = 1.02 atm
Explanation:
We are to find the final pressure (expressed in atm) of a 3.05 liter system initially at 724 mm hg and 298 K which is compressed to a final volume of 2.60 liter at 273 K.
For this, we would use the equation:
[tex]\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}[/tex]
where P1 = 724 mm hg
V1 = 3.05 L
T1 = 298 K
P2 = ?
V2 = 2.6 L
T2 = 173 K
Substituting the given values in the equation to get:
[tex]\frac{(724)(3.05)}{298} =\frac{P_2(2.6)}{173}[/tex]
P2 = 778.05 mm Hg = 1.02 atm
what type of intermolecular force occurs between polar molecules?
A) dipole-dipole force
B) hydrogen bonding
C) induced dipole force
D) polar covalent bonding
Answer:
A) dipole-dipole force
Explanation:
A dipole-dipole force is the type of intermolecular force that occurs between polar molecules.
The intermolecular force occurs between polar molecules is dipole-dipole bonding. The correct option is A)
What are intermolecular force?Intermolecular forces are those forces that occur when two atom, molecules or ions come close together. There are different types of intermolecular force present between different molecules.
Thus, the correct option is A) dipole-dipole force
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Chemistry help please
Answer:
The reaction isn't yet at equilibrium. The overall reaction will continue to move in the direction of the products.
Assumption: this system is currently at [tex]\rm 900^{\circ}C[/tex].
Explanation:
One way to tell whether a system is at its equilibrium is to compare its reaction quotient [tex]Q[/tex] with the equilibrium constant [tex]K_c[/tex] of the reaction.
The equation for [tex]Q[/tex] is quite similar to that for [tex]K_c[/tex]. The difference between the two is that [tex]K_c[/tex] requires equilibrium concentrations, while [tex]Q[/tex] can be calculated even when the system is on its way to equilibrium.
For this reaction,
[tex]\displaystyle Q = \rm \frac{[CS_2]\cdot [H_2]^{4}}{[CH_4]\cdot [H_2S]^{2}}[/tex].
Given these concentrations,
[tex]\displaystyle Q = \rm \frac{[CS_2]\cdot [H_2]^{4}}{[CH_4]\cdot [H_2S]^{2}} =\frac{1.51\times (1.08)^{4}}{1.15\times (1.20)^{2}} \approx 1.72[/tex].
The question states that at [tex]\rm 900^{\circ}C[/tex], [tex]K_c = 3.59[/tex]. Assume that currently this system is also at [tex]\rm 900^{\circ}C[/tex]. (The two temperatures need to be the same since the value of [tex]K_c[/tex] depends on the temperature.)
It turns out that [tex]Q = K_c[/tex]. What does this mean?
First, the system isn't at equilibrium.Second, if there's no external changes, the system will continue to move towards the equilibrium. Temperature might change. However, eventually [tex]Q[/tex] will be equal to [tex]K_c[/tex], and the system will achieve equilibrium.In which direction will the system move? At this moment, [tex]Q < K_c[/tex]. As time proceeds, the value of [tex]Q[/tex] will increase so that it could become equal to [tex]K_c[/tex]. Recall that [tex]Q[/tex] is fraction.
[tex]\displaystyle Q = \rm \frac{[CS_2]\cdot [H_2]^{4}}{[CH_4]\cdot [H_2S]^{2}}[/tex]
When the value of [tex]Q[/tex] increases, either its numerator becomes larger or its denominator becomes smaller, or both will happen at the same time. However,
Concentrations on the numerator of [tex]Q[/tex] are those of the products; Concentrations on the denominator of [tex]Q[/tex] are those of the reactants.As time proceeds,
the concentration of the products will increase, while the concentration of the reactants will decrease.In other words, the equilibrium will move towards the products.
What category do you think humans fall into?
Animal obviously
It could be carnivore, herbivore or omnivore
A sample of a gas in a balloon has a volume of 2.22 L and temperature of 23.9 °C. Calculate the volume when the temperature is raised to 46.1°C at constant pressure.
Answer:
Volume = 4.28L
Explanation:
Charles's gas law relates the volume and temperature of a gas at constant pressure. This law says that at constant pressures if we raise the temperature of a gas it will expand and if we reduce the temperature the volume will decrease. The formula is as follows:
[tex] {\displaystyle {\frac {V_{1}}{T_{1}}}={\frac {V_{2}}{T_{2}}}} [/tex]
So, the initial conditions are 2.22L and 23.9 °C ant the final conditions are 46.1 °C we replace them in the equation. And then we solve it.
[tex] {\displaystyle {\frac {2.22}{23.9}}={\frac {V_{2}}{46.1}} [/tex]
[tex] {\displaystyle {\frac {2.22}{23.9}} {46.1}={V_{2} [/tex]
[tex] {\displaystyle {4.28}={V_{2} [/tex]
Final answer:
Using Charles's Law, the new volume of a gas when the temperature is increased from 23.9°C to 46.1°C at constant pressure is calculated to be approximately 2.37 liters.
Explanation:
Calculating Change in Gas Volume Due to Temperature Increase
To calculate the new volume of a gas when the temperature is raised, we can use Charles's Law. This law states that at constant pressure, the volume of a gas is directly proportional to its absolute temperature. We can set up the relationship as follows:
V1/T1 = V2/T2
Where:
V1 = initial volume of the gas
T1 = initial temperature in Kelvins
V2 = final volume of the gas
T2 = final temperature in Kelvins
We can convert the temperatures from Celsius to Kelvin by adding 273.15 to each temperature.
T1 = 23.9 °C + 273.15 = 297.05 K
T2 = 46.1 °C + 273.15 = 319.25 K
Substitute the values into the equation:
2.22 L / 297.05 K = V2 / 319.25 K
Solving for V2, we get:
V2 = (2.22 L * 319.25 K) / 297.05 K
V2 ≈ 2.37 L
The new volume of the gas when the temperature is raised to 46.1°C at constant pressure is approximately 2.37 liters.
Which statement is true according to the kinetic theory?
A. Molecules of different gases with the same mass and temperature always have the same average density
B. Molecules of different gases with the same mass and temperature always have the same average volume
C. Molecules of different gases with the same mass and temperature always have the same pressure.
D. Molecules of different gases with the same mass and temperature always have the same molecular mass
E. Molecules of different gases with the same mass and temperature always have the same average kinetic energy
Answer:
Molecules of different gases with the same mass and temperature always have the same average kinetic energy - E.
Answer:
Molecules of different gases with the same mass and temperature always have the same average kinetic energy.
Which statements accurately describe the rock cycle? Check all that apply
Answer:
1, 3, 4
Explanation:
Answer:
I just took the lesson
Explanation: