Some strategies which are used to improve the powerless language include the reduction of the use of the following below:
hedgesintensifiersformal grammar etc.What is a Powerless language?This is referred to as the type of language which suggests to listeners that you are uncertain, insufficient, and not entirely confident with oneself due ti various reasons.
Examples of the reasons are the use of hedges , intensifiers etc which have negative effects on how the speaker is perceived. It is usually characterized by Hesitation like “Well” or “Um” etc and it should be avoided to improve it thereby making it he correct choice.
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While doing calculations after a chemical analysis was
completed, Johanna discovered that 164.2 mol of Na₂CO3
were formed. How many grams of product were formed?
The term mole concept is used here to determine the grams of product formed. The grams of product formed is 17401.9 g.
What is mole?One mole of a substance is that amount of it which contains as many particles or entities as there are atoms in exactly 12 g of carbon - 12.
Number of moles = Given mass / Molar mass
The molar mass of Na₂CO3 = 105.98 g/mol
Then the mass of Na₂CO3 = Molar mass × Number of moles
= 105.98 g/mol × 164.2 mol
= 17401.9 g
Thus the grams of product formed is 17401.9 g.
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The element antimony has an atomic weight of 121.957 amu and only two naturally-occurring isotopes. One isotope has an abundance of 61.30% and an isotopic mass of 120.804 amu. Based on this data, what is the mass of the other isotope?
Answer:
46.726 amu
Explanation:
The total abundance of the two isotopes of antimony is 100%, so the abundance of the other isotope is 100% - 61.30% = 38.70%.
Since the atomic weight of antimony is 121.957 amu, the total mass of the two isotopes is 121.957 amu. The mass of the second isotope can be calculated as follows:
mass of the second isotope = (total mass of the two isotopes) * (abundance of the second isotope) / 100
mass of the second isotope = 121.957 amu * 38.70% / 100
mass of the second isotope = 46.726 amu
So the mass of the other isotope is 46.726 amu.
Molar mass of Cu(NO₂)2 = .
Answer:
Molar mass of Cu(NO₂)2 = 187.5 g/mol
What is the process of breaking down a compound into its individual elements called
Answer:Decompositiin
Explanation:
Answer:
decomposition
Explanation:
Decomposition is a chemical reaction where a compound breaks down into two or more simpler compounds or elements. The reverse process of decomposition is called synthesis or combination. In this process, two or more simple substances react to form a more complex compound. Decomposition reactions can be either spontaneous or induced by heat, light, or other forms of energy. Decomposition reactions are often used in industrial processes to extract metal from ore or to produce fertilizers and other products.
ALLEN
Methanol can be produced through the reaction of CO and H2 in the presence of a catalyst.
CO(g) + 2H2(g) catalyst, CH;OH(0)
If 85 g of CO reacts to produce 61.8 g of
CH;OH, what is the percent yield of CH OH?
Answer in units of%.
Answer:
63.6%
Explanation:
To calculate the percent yield of CH3OH, we need to compare the actual yield to the theoretical yield, which is the maximum amount of CH3OH that can be produced based on the amount of CO and H2 that was used in the reaction.
The theoretical yield can be calculated using the balanced chemical equation for the reaction:
CO(g) + 2H2(g) -> CH3OH(l)
Since 1 mole of CO reacts with 2 moles of H2 to produce 1 mole of CH3OH, the moles of CH3OH produced can be calculated by dividing the mass of CO by its molar mass and then multiplying by the ratio of CH3OH to CO in the balanced equation (1 mole of CH3OH per 1 mole of CO).
Let's assume the moles of CO used in the reaction is n. Then,
n = 85 g CO / 28.01 g/mol = 3.03 moles
And the theoretical yield of CH3OH would be:
3.03 moles CO * (1 mole CH3OH/1 mole CO) = 3.03 moles CH3OH
The moles of CH3OH can then be converted to grams:
3.03 moles CH3OH * 32.04 g/mol = 97.36 g CH3OH
Finally, the percent yield can be calculated by dividing the actual yield of CH3OH (61.8 g) by the theoretical yield (97.36 g) and multiplying by 100%.
Percent yield = (Actual yield / Theoretical yield) * 100%
= (61.8 g CH3OH / 97.36 g CH3OH) * 100%
= 63.6%
So the percent yield of CH3OH is 63.6%.
tell me if you confus
ALLEN
Which answer choice BEST explains why the cyclist must be fed if she wants to continue to pedal her bike?
A. All of her stored chemical energy was transformed.
B. She was hungry.
C. She destroyed all of her chemical energy while riding her bike.
D. She needed to create more stored chemical energy.
Based on the data, which
unknown element is the most
reactive?
A (ion)
B (ion)
C (ion)
D (ion)
Element A Element B Element C Element D
Color
Color
change
change
X
Color
change
X
X
X
Color
change
Color
change
X
X.
X
X
Color
change
X
X
Enter
Elements A and B is the most reactive
How can you tell if an element is reactive?
An atom's reactivity is based on the number of electrons in its outermost shell. Noble gases have limited reactivity because their electron shells are completely filled. Because they easily acquire an electron to complete their outermost shell, halogens are highly reactive.
The capacity of an element to ionize (gain or lose electrons) or share electrons is known as reactivity. Elements with greater reactivity typically gain or lose electrons. Shared electrons are typical for less reactive elements. Therefore, electronegativity and/or electron affinity are two ways that we can generally think of reactivity.
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The water is colder than the sand because it requires more to change temperature. This is because the water has a higher than the sand.
The water is colder than the sand because it requires more to change temperature. This is because the Specific heat of water is more than sand.
Specific heat capacity is the amount of thermal energy required to raise the temperature of a substance. Water has a very high specific heat capacity. On the other hand, sand and asphalt have a low specific heat capacity. This means the temperature changes faster.
Sand should heat up and cool faster than water.
This is because water has a higher specific heat than sand, so it takes a lot of heat or energy to raise the temperature of water by 1 degree, whereas it takes relatively little energy to raise the temperature of sand by 1 degree.
And also,
When Brad was swimming in the ocean, he noticed that the sand was hotter than the water in the ocean.
Water is colder than sand because it takes more energy to change its temperature than sand.
This is because the specific heat of water is greater than that of sand. Due to this, sand cools and heats up faster than water.
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what is the main function of the mitochondria in a plant cell
Explanation:
The main function of the mitochondria in a plant cell is to generate energy for the cell through the process of cellular respiration. The mitochondria convert the energy stored in food into a form that the cell can use through the oxidation of glucose and other organic molecules, which produces ATP (adenosine triphosphate) - the energy currency of the cell. Additionally, the mitochondria play a role in regulating the cell's metabolic processes and also in controlling cell death (apoptosis).
Calculate the volume of CO2(g) that would form from the burning of 22g of C3H8 (g) at
STP
C3H8(g)+502(g)->3CO2(g)+4H20 (g)
The volume of CO2 that would form from the burning of 22 g of C3H8 at STP is 33.6 L.
What is volume?Volume is described as a measure of three-dimensional space. It is often quantified numerically using SI derived units or by various imperial or US customary units.
We will calculate the number of moles of propane (C3H8) that are burned:
22 g C3H8 × 1 mole C3H8 / 44 g C3H8 = 0.5 mole C3H8
Find the number of moles of carbon dioxide (CO2) produced by the reaction:
0.5 mole C3H8 × 3 mole CO2 / 1 mole C3H8 = 1.5 mole CO2
The volume of CO2 produced at STP is found as follows:
1.5 mole CO2 × 22.4 L CO2 / 1 mole CO2 = 33.6 L CO2
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AgNO3(aq) + NaCl(aq) → AgCl(s)+ NaNO3(sq)
O Decomposition
O Synthesis
O Combustion
O Double Replacement
O Single Replacement
O Acid/Base Neutralization
The reaction of AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) is an example of a double replacement reaction.
What happens in a double replacement reaction?
A double replacement reaction, also known as a double displacement reaction, is a type of chemical reaction in which two compounds react to form two new compounds by exchanging their positive ions. The reactants are typically in aqueous form, meaning they are dissolved in water, and the products can be solid, liquid, or aqueous.
In a double replacement reaction, the positive ions of two different compounds (in this case Ag+ and Na+) are exchanged, resulting in the formation of two new compounds (AgCl and NaNO3). The reactants are typically in aqueous form, meaning they are dissolved in water, and the products can be solid, liquid, or aqueous.
Therefore, The reaction of AgNO3(aq) + NaCl(aq) → AgCl(s) + NaNO3(aq) is an example of a double replacement reaction.
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true or false If an ice cube is in a glass of water at 0° and no thermal energy is added or removed then the ice cube and the water are in thermal equilibrium?
Answer:
True
Explanation:
When an ice cube is in a glass of water at 0°C and no thermal energy is added or removed, the ice cube and the water will reach thermal equilibrium. This means that the temperature of the system will remain constant and will not change over time. The ice cube will melt until it reaches the temperature of the water, which is 0°C, and the water will lose heat energy until it reaches the temperature of the ice cube, also 0°C. Once the temperatures of both the ice cube and the water are the same, the system is in thermal equilibrium.
Tell me if you kinda confuse :)
ALLEN
Answer:
Trur
Explanation:
How does charge change with dielectric?
On changing dielectric, charge changes directly. It is directly proportional to dielectric permittivity of free space.
In electromagnetism, a dielectric (or dielectric medium) is an electrical insulator that can be captivated by an applied electric field. At the point when a dielectric material is put in an electric field, electric charges don't course through the material as they do in an electrical conduit, since they have no inexactly bound, or free, electrons that might float through the material, however rather they shift, just somewhat, from their typical balance positions, causing dielectric polarization.
Due to dielectric polarization, positive charges are dislodged toward the field and negative charges change in the course inverse to the field (for instance, assuming that the field is moving lined up with the positive x hub, the negative charges will change in the negative x course). This makes an inside electric field that decreases the general field inside the actual dielectric. Assuming a dielectric is made out of pitifully reinforced particles, those atoms become energized.
We know that Q=CV where Q is charge, C is capacitance and V is the voltage of capacitor.
Since, capacitance is equal to= (∈A₀) /d where ∈ is permittivity of free space or dielectric value.
If we increase dielectric value, capacitance will increase. When capacitance increase ,charge will also increase.
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Which answer choice best describes the law of conservation of energy?
A. Energy can be created but not destroyed.
B. Energy can be both created and destroyed.
C. Energy cannot be created nor destroyed it just changes form.
D. Energy cannot be created, but it can be destroyed.
Which of the below choices represents the ranking with which molecules cross a synthetic membrane composed of phospholipids but not proteins? (Ranking in order from least easily to most easily)
a. hydrophobic molecules, small polar molecules, large polar molecules, ions
b. hydrophobic molecules, ions, small polar molecules, large polar molecules
c. ions, large polar molecules, small polar molecules, hydrophobic molecules
d. small polar molecules, large polar molecules, ions, hydrophobic molecules
A synthetic membrane made of phospholipids but lacking proteins permits the passage of hydrophobic molecules, small polar molecules, large polar molecules, and ions.
Transport is the term used to describe the movement of molecules within a cell from one location to another. Hydrophobic molecules, such as oxygen, are the first to cross a synthetic membrane made of phospholipids rather than protein, followed by small polar molecules like water, large polar molecules like glucose, and then ions, which may be sodium ions. Ions are the last to cross a membrane. If the hydrophobic molecules are small enough, they can easily flow through the plasma membrane because the inside of the membrane also despises water.
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Why is it debated whether group 12 elements are transition metals? Explain in terms of electron orbitals.
The elements of 'd' block elements are called the transition elements. All the 'd' block elements are good conductors of heat and electricity.
What is a transition element?The transition elements are defined as those elements which contain partially filled d-orbitals in their atoms in ground state or in their ions in common oxidation states.
But 'Zn', 'Cd' and 'Hg' of group 12 contain a (n-1)d¹⁰ configuration in their atoms and their most common divalent ions. Hence they cannot be considered strictly as transition metals. Because they contain completely filled 'd' orbitals.
Thus the group 12 elements are not strictly considered as transition metals.
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HELP PIC DOWN BELOW 60 pts
1) The relationship between the temperature and the pressure of the gas is directly proportional
2) The volume and the pressure graph are inversely related
3) The particles and pressure graph are directly related.
What is the temperature pressure graph for gases?The temperature-pressure graph for gases is a graphical representation of the relationship between the temperature and pressure of a gas. This relationship is described by the ideal gas law, which states that the pressure of a gas is proportional to its temperature and the number of gas particles (provided the volume of the container is constant).
The temperature-pressure graph for gases can be plotted using data from experiments or simulations. In general, the graph will show that as the temperature of a gas increases, its pressure also increases. Conversely, as the temperature decreases, the pressure will also decrease.
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Which of the following laws demonstrates a DIRECT relationship? (choose all that apply)
a
Charles' Law
b
Avogadro's Law
c
Boyle's Law
Charles' Law and Avogadro's Law demonstrates a direct relationship. Therefore, option A and D are correct.
What does Charles Law states ?Charles' law states that the volume of a gas equals a constant value multiplied by its temperature as measured on the Kelvin scale (zero Kelvin corresponds to -273.15 degrees Celsius).
Charle's law is a direct relationship between temperature and gas volume. Avogadro's Law derives from the direct relationship between volume and the number of moles in a gas.
Boyle's law is a gas law stating that the pressure and volume of a gas are inversely proportional. When the temperature remains constant, volume increases while pressure decreases and vice versa.
Thus, option A and D are correct.
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Select the correct answer from each drop-down menu. Complete the definitions. A rotation is a transformation where an object. A translation is a transformation where an object.
A rotation is a hard transformation that revolves an item around a central point. The direction of the form is different, but it still maintains its orientation. In a translation, the object's points are all moved in the same direction in a straight line.
Motion in which a moving body's points travel uniformly in one direction. We can observe that there is no change in the object's orientation if it is moving in a translatory manner. Motion that is translated is sometimes referred to as translational motion.
Although an object's position, size, or orientation can change during a transformation, its shape is not altered. Transformations can be non-rigid or rigid or isometric, where the size of the image remains constant.
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A compound contains C, H, I, S and has a molar mass of 229 g/mol. The sample has six times as much C
as H by mass. What is the molecular formula?
The molecular formula of the compound is CI4H12S4.
How to find the molecular formula of the compoundLet's assume that we have 6 grams of the compound, which means that 1 gram of the compound contains 1/6th of the total amount of the compound.
We are given that the compound contains C, H, I, S, and has a molar mass of 229 g/mol. Let's use x, y, z, and w to represent the number of moles of C, H, I, and S in one mole of the compound, respectively.
From the information given in the problem, we can set up the following system of equations:
x + y + z + w = 1 (since the sum of the mole fractions must equal 1)
12x = y (since the compound has six times as much C as H by mass)
To find the molecular formula of the compound, we need to determine the values of x, y, z, and w that satisfy these equations and give a molar mass of 229 g/mol.
The molar mass of the compound can be calculated as:
M = 12x + y + 127z + 32w
Substituting y = 12x from the second equation, we get:
M = 13x + 127z + 32w
We know that the molar mass of the compound is 229 g/mol, so we can set up the equation:
229 = 13x + 127z + 32w
We also know that x + y + z + w = 1, so we can substitute y = 12x, giving:
x + 12x + z + w = 1
13x + z + w = 1
We can solve these equations simultaneously to get:
x = 0.061
z = 0.504
w = 0.069
Substituting these values into the equation for the molar mass, we get:
M = 13(0.061) + 127(0.504) + 32(0.069) = 229
Therefore, the molecular formula of the compound is CI4H12S4.
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Elag for Rev
Use the drop-down menus to complete the hypothesis of the
first group of researchers.
During a drought, the decrease in rainfall will reduce the
amount of vegetation that can grow and increase the
occurrence of natural fires, so an elevation in
Select...
and a reduction in Select...
be found in the cores.
▾should
According to the problem should and charcoal particles.
What is the charcoal ?Charcoal is a black, porous, and lightweight material that is produced by burning wood, wood products or other organic materials in the absence of oxygen. It is composed mainly of carbon, but also contains small amounts of hydrogen and other elements. Charcoal is an extremely versatile material that has been used for centuries for a variety of purposes, such as fuel for fires, as an abrasive for polishing and cleaning, and as a pigment for painting. Charcoal is also used in agriculture as a soil enhancer and fertilizer, and in medicine as a detoxifying agent.
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Rank the following aqueous solution by increasing freezing point. (1) 0. 30 m c6h6o2 (2) 0. 15 m mgbr2 (3) 0. 10 m nh4no3.
The rank of the solutions from lowest to highest freezing point is: 0.10 m NH4NO3 < 0.15 m MgBr2 < 0.30 m C6H6O2.
1. 0.30 m C6H6O2: Freezing Point Depression = -iKf m, where i is the van't Hoff factor (2 for a nonelectrolyte) and Kf is the cryoscopic constant. The van't Hoff factor for C6H6O2 is 1, so Freezing Point Depression = -Kf m.
2. 0.15 m MgBr2: Freezing Point Depression = -2Kf m, where 2 is the van't Hoff factor and Kf is the cryoscopic constant.
3. 0.10 m NH4NO3: Freezing Point Depression = -3Kf m, where 3 is the van't Hoff factor and Kf is the cryoscopic constant.
Therefore, the rank of the solutions from lowest to highest freezing point is: 0.10 m NH4NO3 < 0.15 m MgBr2 < 0.30 m C6H6O2
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Select the correct answer from
each drop-down menu.
What causes O atoms to form covalent bonds?
In a covalent bond, two atoms are held together by the attraction between
bonds that an atom can form depends on the number of
The number of covalent
in the atom.
The oxygen atoms form covalent bonds as they have same value of electronegativity.
What is covalent bond?
Covalent bond is defined as a type of bond which is formed by the mutual sharing of electrons to form electron pairs between the two atoms.These electron pairs are called as bonding pairs or shared pair of electrons.
Due to the sharing of valence electrons , the atoms are able to achieve a stable electronic configuration . Covalent bonding involves many types of interactions like σ bonding,π bonding ,metal-to-metal bonding ,etc.
Sigma bonds are the strongest covalent bonds while the pi bonds are weaker covalent bonds .Covalent bonds are affected by electronegativities of the atoms present in the molecules.
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a mixture containing 0.765 mol He(g), 0.330 mol Ne(g), and 0.110 mol Ar(g) is confined in a 10.00 L vessel at 25 degrees celsius. Calculate the partial pressure of each gases in the mixture and calculate the total pressure of the mixture
The total pressure of the mixture is 356585 Pa.
How to calculate the partial pressure of each gas in the mixtureFirst we can use the formula:
partial pressure = mole fraction * total pressure
where the mole fraction is the number of moles of a gas divided by the total number of moles in the mixture.
The total number of moles in the mixture is:
n_total = n_He + n_Ne + n_Ar = 0.765 mol + 0.330 mol + 0.110 mol = 1.205 mol
The mole fraction of each gas in the mixture is:
X_He = n_He / n_total = 0.765 mol / 1.205 mol = 0.6357
X_Ne = n_Ne / n_total = 0.330 mol / 1.205 mol = 0.2743
X_Ar = n_Ar / n_total = 0.110 mol / 1.205 mol = 0.0909
The total pressure of the mixture is equal to the sum of the partial pressures of each gas:
P_total = P_He + P_Ne + P_Ar
To calculate each partial pressure, we can use the formula:
partial pressure = mole fraction * total pressure
P_He = X_He * P_total = 0.6357 * P_total
P_Ne = X_Ne * P_total = 0.2743 * P_total
P_Ar = X_Ar * P_total = 0.0909 * P_total
We can now use the ideal gas law to calculate the total pressure of the mixture. The ideal gas law is:
PV = nRT
where
P is the pressure (in Pa) V is the volume (in m³) n is the number of moles R is the gas constant (8.314 J/(mol·K))T is the temperature (in K)Converting the volume and temperature to the appropriate units, we get:
V = 10.00 L = 0.01 m³
T = 25 °C = 298 K
Substituting the given values and solving for P, we get:
P_total = n_total * R * T / V = 1.205 mol * 8.314 J/(mol·K) * 298 K / 0.01 m³ = 356585 Pa
Therefore, the partial pressure of each gas in the mixture is:
P_He = 0.6357 * 356585 Pa = 226789 Pa
P_Ne = 0.2743 * 356585 Pa = 97782 Pa
P_Ar = 0.0909 * 356585 Pa = 32414 Pa
And the total pressure of the mixture is:
P_total = P_He + P_Ne + P_Ar = 356585 Pa
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Three 1.0 liter flasks were filled with H2, O2 and Ne, respectively, at STP. Which of the following statements is correct?A. Each flask has the same number of gas moleculesB. The velocity (molecular velocity) of the gas molecules is the same in each flask.C. The density of each gas is the sameD. The number of O2 and H2 molecules is twice as large as Ne atoms.e. None of the above is true.
Three 1.0 liter flasks were filled with H2, O2 and Ne, respectively, at STP, the statement true is Each flask has the same number of gas molecules.
STP, or standard temperature and pressure, refers to the nominal atmospheric conditions at sea level. The temperatures and pressures are 0 degrees Celsius and 1 atmosphere, respectively. In addition to other professionals, the STP value is crucial for physicists, chemists, engineers, pilots, and navigators.
STP is frequently used to set standard temperature and pressure conditions, which is crucial for measurements and recording of physical and chemical processes.
It's inversely as important to indicate the applicable reference conditions of temperature and pressure when stating the molar volume of a gas( 41) as it's when expressing a gas volume or volumetric inflow rate. Stating the molar volume of a gas without indicating the reference conditions of temperature and pressure has veritably little meaning and can beget confusion.
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The Haber Process involves nitrogen gas combining with hydrogen gas to produce
ammonia.
N. + 3H2 - 2NH,
10.0 grams of nitrogen gas is reacted with 10.0 grams of hydrogen gas.
Find the following: the molar mass of reactants and products, the limiting reactant.
the excess reactant, the amount of ammonia produced.
17.04 grams
12.16 grams
hydrogen gas
28.02 grams
nitrogen gas
1. The limiting reactant
2. The excess reactant
3. Molar mass of hydrogen gas
4. Molar mass of nitrogen gas
5. Molar mass of ammonia (NHb)
6. Amount of ammonia produced
2.02 grams
The limiting reactant: Nitrogen gas (N2)
The excess reactant: Hydrogen gas (H₂)
Molar mass of hydrogen gas: 2.016 grams/mol
Molar mass of nitrogen gas: 28.02 grams/mol
Molar mass of ammonia (NH3): 17.04 grams/mol
What is Haber process ?The Haber process is a high-temperature, pressurized ammonia-gas synthesis. According to the balanced reaction, three moles of hydrogen and one mole of nitrogen gas yield two moles of ammonia gas.
Molecular mass of H₂ is 2 g/mol
molecular mass of N₂ is 28 g/mol
No.of moles in 10 g of H₂ is 10/2
= 5 moles.
no.of moles in 10 g of N₂ is 10/28
= 0.35 moles.
Here, the nitrogen gas is fewer in amount, and it is the limiting reactant in the reaction and hydrogen is the excess reactant.
Molar mass of NH₃ = 17 g/mol
1 mole or 28 g of nitrogen gives 2 moles or 34 g of ammonia. Hence, 10 g of nitrogen gas will give,
(10 × 34) / 28
= 12.14 g of NH₃.
Thus, 12.14 g of NH₃ is produced by 10 g of nitrogen gas in this reaction.
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If you are inflating a balloon that has 0.0200 mol of Helium and a volume of 0.150 m3. How many moles of Helium are there if the new volume of the balloon is 0.90 m3?
__________moles Helium
The concept Avogadro's law is used here to determine the number of moles of Helium. The number of moles of He is 0.0033 mol.
What is Avogadro's law?The Avogadro's law states that equal volumes of all gases under similar conditions of temperature and pressure contain equal number of molecules. Mathematically it is expressed as:
V ∝ n
1m³ = 1000 L
0.150 m³ = 150 L
0.90 m³ = 900 L
For two different gases, equation is:
V₁n₁ = V₂n₂
n₂ = V₁n₁ / V₂
= 150 × 0.0200 / 900
= 0.0033 mol
Thus the number of moles of 'He' is 0.0033 mol.
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The correct number of significant figures in the number 9.080 x10^4 is:
The correct number of significant figures in the number [tex]9.080 \times 10^4[/tex] is 4.
What are significant figures?Significant figures refer to the digits in a number that are trustworthy and denote the amount of something, also known as the significant digits, accuracy, or resolution.
Only the digits allowed by the measurement resolution are dependable, hence only these can be important figures if a number expressing the outcome of a measurement (such as length, pressure, volume, or mass) has more digits than the number of digits allowed by the measurement resolution.
Some rules to understand significant figures:
1. Non-zero digits are always significant
2. Zeros between non-zero digits are always significant.
3. Leading zeros are never significant.
4. Trailing zeros are only significant if the number contains a decimal point
This number has 4 significant figures.
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What a color symbolizes is a universal language.
Group of answer choices
True
False
Answer:
true
Explanation:
red is commonly seen as angry by anyone you ask
Answer:
True
Explanation:
Colors can have symbolic meanings that are recognized across cultures and societies. For example, red is often associated with passion and love, while green is associated with growth and prosperity. Blue is often associated with stability and reliability, while yellow is associated with happiness and optimism. These symbolic meanings of colors are a form of nonverbal communication that is widely understood, making them a universal language.
Two perfumes are released at the same time. If one is standing 7.5 m from the point of release. Perfume A (molar mass 275 g/mol) and perfume B (molar mass 205 g/mol) at the same temperature. Which perfume will the person smell first? (show your working)
Answer:
perfume B
Explanation:
To determine which perfume a person will smell first, we need to determine the rate at which each perfume will travel to the person. The rate of a gas is proportional to the square root of its molar mass and the difference in partial pressures between the gas and the surroundings.
Since both perfumes are at the same temperature, the difference in partial pressures between the two perfumes will be the same. As a result, the perfume with the smaller molar mass (perfume B) will travel faster to the person and be smelled first.
