Answer:
Given that an atom has 15 electrons, here's the solution to each part of the problem:
i. Number of subshells:
The number of subshells can be determined by the electron configuration of the atom. The electron configuration of a neutral atom with 15 electrons is 1s2, 2s2, 2p6, 3s2. Thus, there are 4 subshells: 1s, 2s, 2p, and 3s.
ii. Number of orbitals:
The number of orbitals in each subshell can be determined by the value of the principal quantum number (n) and the angular momentum quantum number (l). The number of orbitals in a subshell is equal to 2l + 1.
For the subshell 1s, l = 0, so there is 1 orbital (2 * 0 + 1 = 1).
For the subshell 2s, l = 0, so there is 1 orbital (2 * 0 + 1 = 1).
For the subshell 2p, l = 1, so there are 3 orbitals (2 * 1 + 1 = 3).
For the subshell 3s, l = 0, so there is 1 orbital (2 * 0 + 1 = 1).
So in total, there are 6 orbitals: 1 for 1s, 1 for 2s, 3 for 2p, and 1 for 3s.
iii. Number of electrons having azimuthal quantum number = 1:
The azimuthal quantum number (m_l) represents the orientation of the orbital in space. The value of m_l can range from -l to +l in integer steps. For p orbitals, l = 1, so the possible values of m_l are -1, 0, and 1.
In this case, we're looking for the number of electrons with m_l = 1. In a full p orbital, there are 2 electrons with m_l = -1, 2 electrons with m_l = 0, and 2 electrons with m_l = 1.
Given that the atom has 15 electrons, it means that 2 of the electrons in the 2p subshell are unpaired (since there are an odd number of electrons). So in this case, there is 1 electron with m_l = 1.
What is the wavelength of the microwaves that cook your food?
12,000 cm
120 cm
2 cm
12 cm
A phosphate-ion (PO43-) level in a water sample is 93.1 ppm (or mg/L). What is the concentration of this phosphate sample in molarity? Density of water is 1 g/mL Note: In the field of water quality, ppm and mg/L are the same unit.
Answer:
The molarity of a solution can be calculated by dividing the number of moles of solute by the volume of the solution in liters. To calculate the number of moles of solute in a solution, we first need to find the mass of the solute.
Since the concentration of the phosphate sample is given in mg/L (ppm), we can convert this to grams by multiplying by 0.001:
93.1 mg/L x 0.001 g/mg = 0.0931 g/L
Next, we can find the number of moles of solute by dividing the mass of solute by its molar mass:
0.0931 g ÷ (1 mol/94 g) = 0.000989 mol/L
Finally, we can find the molarity of the solution by dividing the number of moles of solute by the volume of the solution:
0.000989 mol ÷ (1 L) = 0.000989 M
what is spaced practice what is spaced practice
Spaced practice is a learning strategy where the time between learning sessions is increased over time.
How is spaced practice applied?In this approach, material is studied multiple times, with increasing intervals between each session. This type of practice is thought to enhance long-term retention and improve memory compared to massed practice, where all the material is studied in one single session.
Spaced practice is often used in education and training programs, especially for subjects that require memorization or recall of information. The idea behind spaced practice is that it allows time for the material to be consolidated in memory, rather than simply being repeated in short-term memory.
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5. What are the grams of Aluminum Sulfate if
2.50 grams of Copper (II) sulfate reacts with
aluminum? (Hint this is your theoretical yield)
Answer:
In order to calculate the theoretical yield of Aluminum Sulfate in this reaction, you would need to know the balanced chemical equation for the reaction between Copper (II) Sulfate and Aluminum.
Without that information, it is not possible to determine the amount of Aluminum Sulfate that would be produced from 2.50 grams of Copper (II) Sulfate.
Explanation:
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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Determine the volume in milliliters of a rock that weighs 52.0 g and has a density of 19.4 g/ml. (6 points)
Taking into account the definition of density, the volume of a rock that weighs 52.0 g and has a density of 19.4 g/mL is 2.68 mL.
Definition of densityDensity is defined as the property of matter, whether solid, liquid or gas, that allows to measure the amount of mass in a certain volume of a substance.
The expression for its calculation is the quotient between the mass of a body and the volume it occupies:
denstiy= mass÷ volume
VolumeIn this case, you know that:
Density= 19.4 g/mLMass= 52 gVolume= ?Replacing in the definition of density:
19.4 g/mL= 52 g÷ volume
Solving:
19.4 g/mL× volume= 52 g
volume= 52 g÷ 19.4 g/mL
volume= 2.68 mL
In summary, the volume is 2.68 mL.
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The weight of a millimole of (NH4)2HPO4 is
The molar mass of (NH4)2HPO4 ( N H 4 ) 2 H P O 4 is 132.06 grams per mole.
What is the weight of a millimole of NH4 2HPO4?The millimole is 1/1000 of a mole. The mass in grams of a millimole is the millimolar mass (mM)= 1/1000 of the molar mass. The canine mass M of a substance is the mass in grams NH4 2HPO4 of 1 mole of that material. (M: 106.1 g/mol) that are carried in 2.00 g of pure sodium carbonate.
The formula weight of the amalgam, Al2(SO4)3 . ... The weight of a millimole of (NH4)2HPO4 is: (a) 132 g: (b) 114 g: (c) 1.14 x 10-3 g: (d) 0.132 g .(NH4)2HPO4 subatomic weight. The molar mass of (NH4)2HPO4 = 132.056221 g/mol. Convert grams (NH4)2HPO4 to moles or moles (NH4)2HPO4 to grams.
So we can conclude that A fusion of NH4NO3 and (NH4)2HPO4 contains 30.40 % mass percent of nitrogen.
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If each household emits 60 metric tons of co2 on average and 21 metric tons are from transportation, how many are from the bus?.
If each household emits 60 metric tons of CO2 on average, and 21 metric tons are from transportation, the remaining CO2 emissions from a household would be 60 - 21 = 39 metric tons.
However, it is not possible to determine how many metric tons of CO2 are specifically from the use of buses, as this information is not specified. The 21 metric tons of CO2 emissions from transportation could come from a variety of sources, including buses, cars, trains, and airplanes. Without further information, it is not possible to determine exactly how many of the 21 metric tons of transportation-related CO2 emissions are specifically from the use of buses. To determine this information, you would need data that breaks down the total transportation-related CO2 emissions into smaller categories, such as emissions from individual modes of transportation. So, while it's known that each household emits an average of 60 metric tons of CO2 per year, with 21 of those metric tons being from transportation, it is not possible to determine the exact amount of CO2 emissions from the use of buses without additional information.
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What type of reaction would most likely occur when magnesium reacts with bromine?
you gonna get magnesium bromide MgBr2
Magnesium is metal and bromine is non-metal, and the combination of the two produces an ionic compound called magnesium bromide
Used as a catalyst.
Used for position-specific analysis of Triglycerols.
Widely used as an anticonvulsant for the treatment of neuropathy.
It is used as a mild sedative.
Analysis of a 5.68-g sample of ZnS contains 3.80 g of Zn. Calculate the mass of Zn that can be obtained from 7.53 kg of Zns.
a.5.65 kg
b.5.04 kg
c.3.73 kg
d.2.87 kg
If a 5.68-g sample of ZnS contains 3.80 g of Zn then the mass of Zn that can be obtained from 7.53 kg of Zns. is 5.04kg so correct option is
(b) 5.04kg.
With the provided data, we can first determine the mass percent content of zinc in ZnS:
(Mass of Zn / Mass of ZnS) times 100% Equals mass percent of Zn
3.80 g / 5.68 g x 100%, where mass percent of Zn
Zn mass percentage is 66.9%.
This indicates that zinc accounts for 66.9% of the mass of ZnS. This number can be used to determine how much Zn can be extracted from 7.53 kg of ZnS:
mass of Zn from 7.53 kg of ZnS is equal to (66.9 / 100) × 7.53 kg, or 5.04 kg.
As a result, 5.04 kg of Zn can be extracted from 7.53 kg of ZnS. 5.04 kg is the correct answer (b).
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If Earth is 1.50 × 10^(8 km from the sun , what is the distance in Gm?
The distance of the Earth from the sun in gigameters is 1.50 × 10⁻⁴ Gm
How to convert km to Gm?A unit conversion is the expression of the same property in a different unit of measurement. To convert kilometers to gigameters, you need to divide the number of kilometers by 10¹². Here's the formula: Gigameters = Kilometers / 10¹²
To convert the distance from kilometers to gigameters (Gm), divide the number of kilometers by 10¹².
So, 1.50 × 10⁸ km ÷ 10¹² = 1.50 × 10⁻⁴ Gm
Therefore, the distance from the Earth to the Sun is approximately 1.50 × 10⁻⁴ Gm.
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Length: 2:00:00
ge 1:
2 3
5
I
Silas Calderon: Attempt 1
What do the domains Bacteria and Archaea have in common?
Prokaryotes, single-celled microorganisms without nuclei, include both bacteria and archaea.
Describe prokaryotes.
Prokaryotes are creatures without a nucleus or other organelles in their cells. Bacteria and archaea, two separate groupings of prokaryotes with allegedly independent evolutionary histories, are separated into. The majority of prokaryotes are tiny, single-celled creatures with a straightforward structure.
Both of them are microscopic, single-celled organisms with a wide range of forms. Bacteria and archaea both contain only one circular chromosome and no membrane-bound organelles. Archaea can contain flagella to help with movement, just like bacteria may.
Although there are many different shapes that bacteria and archaea can take, cocci, bacilli, and spirilli are the three that are most frequently found. In comparison to ordinary eukaryotes, bacteria and archaea are both typically tiny organisms.
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A hamburger is found to contain 10.1 grams of fat, 30.3 grams of carbohydrate and 13.3 grams of protein. Calculate the percent fat, carbohydrates and protein for this sandwich. (Do not have to use dimensional analysis)
The percent fat, carbohydrates and protein for this sandwich are 18%, 56.4% and 24.71% respectively.
What is mass percentage?The mass percent might be used to denote a degree. Furthermore, it defines the component during a certain mixing. The solution composition usually frequently defined in terms of mass percentage.
It represents the amount of solute contained in a constant amount of solution. The quantity of solutes can be stated in terms of mass or moles.
Mass percent of fat= (10.1/ 53.7)×100=18%
Mass percent of carbohydrate = (30.3/ 53.7)×100=56.4%
Mass percent of protein= (13.3 / 53.7)×100=24.71%
Therefore, the percent fat, carbohydrates and protein for this sandwich are 18%, 56.4% and 24.71% respectively.
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What is the molecular formula of a compound with the empirical formula sf5 and a formula mass of 254. 1 amu?.
Molecular formula S₂F₁₀ for the compound with the empirical formula SF₅ and formula weight 254.1 a.m.u.
Molecular formula for a compound with the empirical formula CH₂O and formula weight 180.156 a.m.u: C₆H₁₂O₆.
Molecular Formula:
Molecular formulas use subscripts that give the actual number of atoms of each type in the molecule of a compound. The molecular formula is related to the molecular weight in grams, which is a simple integer multiple of the mass of the corresponding empirical formula.
Empirical Formula:
The empirical formula of a compound is the formula for a substance written in terms of the smallest integer exponent. The empirical formula provides information about the atomic number ratio of a compound. The percent composition of a compound leads directly to the empirical formula.
Now,
The molecular formula of a compound with a given empirical formula can be calculated as:
molecular formula = (empirical formula)n
The molecular formula for this compound is: n = 254.1
⇒ 127n = 254.1
⇒ n = 2
Formula = (SF5)₂ = S2F10
⇒ (CH2O)n = 180.156amu 44 {41 24424} = 180. 156
⇒ (30)n = 180.156
⇒ n = 6
Molecular formula = (CH2O)₆ = C6H12O₆
Molecular formula of a compound with empirical formula CH2O and formula weight 180.156 amu: C₆H₁₂O₆.
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Answer:
The molecular formula of the compound with the empirical formula SF5 and a formula mass of 254.1 amu is S2F10. This can be determined by dividing the formula mass by the empirical formula mass (254.1/48.3 = 5.26) and then multiplying the elements of the empirical formula by this value (S x 5.26 = S2, F x 5.26 = F10).
How many grams of Mn are in 1.07x10^24 atoms
The mass (in grams) of Mn present in 1.07×10²⁴ atoms is 97.735 grams
How do I determine the mass of Mn present?We'll begin by obtaining the number of mole of Mn. This can be obtained as follow:
From Avogadro's hypothesis,
6.02×10²³ atoms = 1 mole of Mn
Thus,
1.07×10²⁴ atoms = (1.07×10²⁴ atoms × 1 mole) / 6.02×10²³ atoms
1.07×10²⁴ atoms = 1.777 moles of Mn
Now, we shall determine the mass (in grams) of Mn. Details below:
Number of mole of Mn = 1.777 moles Molar mass of Mn = 55 g/mol Mass of Mn =?Mole = mass / molar mass
Cross multiply
Mass = Mole × molar mass
Mass of Mn = 1.777 × 55
Mass of Mn = 97.735 grams
Thus, from the above calculation, it is evident that the mass of Mn is 97.735 grams
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How many moles of nitrogen gas are produced when 36. 0 g of NH4NO3 reacts?
[tex]0.225 moles[/tex] of nitrogen gas are produced when[tex]36.0 g[/tex] of NH4NO3 reacts.
The reaction for the decomposition of ammonia nitrate (NH4NO3) is given by:
NH4NO3 → N2 + 2H2O
The number of moles of nitrogen gas (N2) produced when 36.0 g of NH4NO3 reacts can be determined using the following steps:
1. Calculate the molar mass of NH4NO3.
[tex]Molar mass of NH4NO3 = (1 *14.007 g/mol) + (4 *1.008 g/mol) + (3 * 14.007 g/mol) \\ = 80.042 g/mol[/tex]
2. Calculate the number of moles of NH4NO3 present in the given mass.
Number of moles =[tex]\farc{Mass}{Molar mass}\\ = \frac{36.0 g}{80.042 g/mol}\\ = 0.45 moles[/tex]
3. Calculate the number of moles of nitrogen gas produced.
Number of moles of N2 produced = [tex]\frac{0.45 moles}{2 }= 0.225 moles[/tex]
Therefore,36.0 g of NH4NO3 react with oxygen to generate g of nitrogen gas [tex]0.225 moles[/tex].
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How does the amount of energy coming from the energy source (low vs. high) affect the amount of electrical energy released.
If (A. more), (B. less) energy is put into the system, then (A. more), (B. less) energy will be released from the system.
The quantity of electrical energy released is a function of the quantity of energy coming from the energy source (low vs. high). The system will release (A) more (B) less energy depending on how much energy is introduced into it.
What is the use of electrical energy in the system?The rotor shaft of a generator is spun or rotated by the fluid's force on the blades. The generator then transforms the kinetic (mechanical) energy of the rotor into electrical energy.
Turbines come in a variety of forms, including steam, combustion (gas), hydroelectric, and wind turbines.
At the scale that a large utility would use them, solar and wind power are currently the least expensive sources of energy. They are much less expensive than coal and nuclear power plants and slightly less expensive than natural gas-fired power plants.
Therefore, Depending on how much energy is supplied into the system, it will either (A) release more (B) or less (C).
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Which system was developed to extinguish fires in commercial cooking operations, reducing the temperature of the burning liquid?a. Wet chemical extinguishing systemb. Combination systemc. Dry pipe systemd. Wet barrel hydrant
The system developed to extinguish fires in commercial cooking operations, reducing the temperature of the burning liquid is the "wet chemical extinguishing system".
This system is specifically designed to suppress fires that start in deep fryers and other cooking appliances commonly found in commercial kitchens. The wet chemical extinguishing system is a specialized fire suppression system that uses a specially formulated liquid agent to extinguish fires by cooling the fuel and preventing re-ignition. The liquid agent is discharged in a fine mist, which blankets the burning fuel and cools it to below its ignition temperature. This helps prevent the fire from spreading and re-igniting, and reduces the potential for injury or property damage. Other fire suppression systems temperature that are commonly used include the combination system, which combines wet chemical and dry chemical agents, the dry pipe system, which is a type of sprinkler system that uses pressurized air to prevent water from entering the pipes until a fire is detected.
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A container of gas at 29 psi is compressed to
one seventh its original volume. What is the
new pressure of the gas?
Answer in units of psi
The new pressure of the gas is 203 psi.
What is the Boyle's law?Boyle's law is a gas law that states that the pressure of a gas is inversely proportional to its volume at a constant temperature. The law can be expressed mathematically as:
P * V = k
where P is the pressure of the gas, V is its volume, and k is a constant. This law states that as the volume of a gas increases, its pressure decreases, and as its volume decreases, its pressure increases.
We know that;
P1V1 = P2V2
P1 = initial pressure
P2 = final pressure
V1 = initial temperature
V2 = final temperature
P1 = 29
V1 = V
P2 = ?
V2 = P/7
Then;
P2 = P1V1/V2
P2 = 29 * V/V/7
P2 = 203 psi
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. Sulphuric acid (H2SO4) is extremely corrosive to skin. *
O Analytical Chemistry
Physical Chemistry
Biochemistry
O Inorganic Chemistry
The fact that sulphuric acid is extremely corrosive to skin is a part of physical chemistry (option B).
What is physical chemistry?Physical chemistry is the science that uses theories and techniques from physics to study chemical systems.
Physical chemistry blends the principles of physics and chemistry to study the physical characteristics, or properties, of molecules.
According to this question, the corrosive feature of sulphuric acid is a physical attribute of the substance, hence, it is studied under physical chemistry.
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What mass of silver nitrate will react with 5.85 g of sodium chloride to produce 14.35 g of silver chloride and 8.5 g of sodium nitrate
17g is the mass of of silver nitrate will react with 5.85 g of sodium chloride to produce 14.35 g of silver chloride and 8.5 g of sodium nitrate.
What is silver nitrate?Silver nitrate is indeed a chemical compound having the formula AgNO[tex]_3[/tex]. It serves as a flexible precursor to a wide range of other silver compounds, including those employed in photography.
It is significantly less light sensitive than halides. It was originally known as lunar caustic because ancient alchemists connected silver with both the moon and termed it luna.
According to law of conservation of mass
Total mass of reactants = Total mass of products
Mass of Silver nitrate + 5.85g= 14.35g+ 8.5g
Mass of silver nitrate = 22.85-5.85= 17g
Therefore, 17g is the mass of silver nitrate.
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How many moles of anions are in 34.8 g of AlF3 A l F 3 ?
There are 0.610 moles of anion which are present in 34.8 g of aluminium trifluoride compound or AlF₃.
What is a mole?Mole is defined as the unit of amount of substance . It is the quantity which measures amount of substance of how many elementary particles are present in a that given substance.
It is defined as exactly 6.022×10²³ elementary entities. The elementary entity can be a molecule, atom ion depending on which type of substance is present. Amount of elementary entities which are present in a mole is called as Avogadro's number.
Number of moles of anion =mass/molar mass= 34.8/57= 0.610
Thus, there are 0.610 moles of anion present in 34.8 g of aluminium trifluoride or AlF₃.
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How many grams of copper (i) nitrate (cuno 3 ) are required to produce 44. 00 grams of aluminum nitrate (al (no 3 )3 )?.
To determine how many grams of copper (I) nitrate (CuNO3) are required to produce 44.00 grams of aluminum nitrate (Al(NO3)3), we need to use stoichiometry and the balanced chemical equation that relates the two compounds.
The balanced chemical equation for the reaction is: 3CuNO3 + 2Al -> 3Cu + 2Al(NO3)3 This equation tells us that 3 moles of CuNO3 react with 2 moles of Al to produce 2 moles of Al(NO3)3 and 3 moles of Cu.
We can use this information to calculate the amount of CuNO3 required to produce 44.00 grams of Al(NO3)3 as follows: Calculate the molar mass of Al(NO3)3: Al(NO3)3 = 1(26.98) + 3(14.01 + 3(16.00)) = 213.00 g/mol
Convert the given mass of Al(NO3)3 to moles: moles Al(NO3)3 = 44.00 g / 213.00 g/mol = 0.2065 mol Use the stoichiometric ratio from the balanced chemical equation to determine the moles of CuNO3 required: 3 moles CuNO3 / 2 moles Al(NO3)3 = x moles CuNO3 / 0.2065 moles Al(NO3)3 x moles CuNO3 = 3/2 x 0.2065 mol = 0.3097 mol
By using the balanced chemical equation, we can relate the amount of one compound to the amount of another compound in the reaction. This allows us to use stoichiometry to calculate the amount of one compound required to produce a given amount of another compound.
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Commercial vinegar contains close to 5 g of acetic acid (ch_3cooh) per 100 ml (1 l = 1000 ml) of solution. What is the molarity of acetic acid in vinegar?.
If commercial vinegar contains around 5 g of acetic acid (ch 3cooh) per 100 ml (1 l = 1000 ml) in solution, its molarity is 0.83 M.
Molarity is the amount of solute in moles per litre of solution.
Acetic acid's mass is reported as 5.0 g, and the solution's volume is 100.0 mL.
We divide the grammes of acetic acid by the molar mass in order to convert them from grammes to moles.
Acetic acid's chemical formula is CH₃COOH. Molar mass of acetic acid is equal to 2(12.01), 4(1.01), 2(16), 24.02, 4.04, and 32 grammes per mol. Acetic acid has a molecular weight of 5.0/60.06, or 0.083 moles.
Transform mL to L.
1 L equals 1000 mL, as we are aware.
The solution's molarity is equal to 0.083moles per 0.1000L, or 0.83M, thus we divide by 1000 to convert from mL to L. 100/1000 = 0.1000 L
Therefore, 0.83 M of acetic acid is present in vinegar.
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Please select the word from the list that best fits the definition impersonal relationships are due to job specialization.
Answer:
Organic solidarity
Explanation:
its right
HELP ! Pictures down below (70 points)
For a given mass of gas at a constant temperature, when volume decreases pressure increases.
For at a constant temperature, when mass decreases pressure increases.
What is the effect of a decrease in volume on the pressure of gases?According to Boyle's Law, at a constant temperature, the pressure of a gas is inversely proportional to its volume.
Thus, a decrease in the volume of a gas will result in an increase in pressure, assuming that the temperature and amount of gas remain constant.
Assuming that the temperature and volume remain constant, an increase in the mass of a gas will result in an increase in its pressure. This is because as the mass of the gas increases, the number of gas particles also increases, which leads to an increase in the frequency and force of their collisions with the container walls. These increased collisions result in an increase in the pressure of the gas.
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PLEASE HELP
Calculate the number of oxygen atoms in a 120.0 g sample of forsterite (Mg2SiO4).
Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
Answer:
The molar mass of Mg2SiO4 can be calculated by adding the atomic masses of each element:
Mg: 2 x 24.31 g/mol = 48.62 g/mol
Si: 1 x 28.09 g/mol = 28.09 g/mol
O: 4 x 16.00 g/mol = 64.00 g/mol
Molar mass of Mg2SiO4 = 48.62 + 28.09 + 64.00 = 140.71 g/mol
To calculate the number of oxygen atoms in a 120.0 g sample of forsterite, we first need to calculate the number of moles of Mg2SiO4 in the sample:
n = mass / molar mass = 120.0 g / 140.71 g/mol = 0.853 mol
Next, we can use the molecular formula to determine the number of oxygen atoms in one mole of Mg2SiO4:
Mg2SiO4 has 4 oxygen atoms per molecule, so one mole of Mg2SiO4 has 4 moles of oxygen atoms.
Therefore, the number of oxygen atoms in 0.853 mol of Mg2SiO4 is:
0.853 mol Mg2SiO4 x 4 mol O / 1 mol Mg2SiO4 = 3.412 mol O
Finally, we can convert the number of oxygen atoms to a more convenient unit, such as atoms. One mole of oxygen atoms contains 6.022 x 10^23 atoms, so the total number of oxygen atoms in 0.853 mol of Mg2SiO4 is:
3.412 mol O x 6.022 x 10^23 atoms/mol = 2.055 x 10^24 atoms of oxygen
Rounding this result to 4 significant digits, we get:
2.055 x 10^24 atoms of oxygen (to 4 significant digits)
Explanation:
Which energy source(s) can cause the turbine to generate electrical energy?
Choose all that are correct.
tea kettle
faucet
bicycle
sun
Yes, all of these energy sources can cause a turbine to generate electrical energy.
What is energy source?Energy source is an entity or substance that provides energy, typically in the form of electricity, heat, or fuel. This energy can be used to provide light, motion, heat, and to power machinery, among other things. Examples of energy sources include fossil fuels such as coal and natural gas, renewable sources such as solar, hydro, and wind power, and nuclear sources such as uranium and thorium. Energy sources can be used for many different applications, from powering vehicles to providing heat and light for homes and businesses.
A tea kettle or faucet can generate steam to power a turbine, a bicycle can provide mechanical energy to spin the turbine, and solar energy can be converted into electricity by a solar panel and used to power a turbine.
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Calculate the number of carbon atoms in a 140.0 g sample of glucose (C6H1206).
Be sure your answer has a unit symbol if necessary, and round it to 4 significant digits.
There are 2.81 × 10^24 moles number of carbon atoms in a 140.0 g sample of glucose (C6H1206).
What is molar mass ?The term molar mass of a substance is defined as the mass in grams of one mole of the compound. In a substance, the amount of entities present e.g., atoms, molecules, ions. A mole of any substance is 6.022×10²³ molecules.
To calculate, we need to know the number of moles present in 140 grams of carbon.
number of moles = mass/molar mass
molar mass of glucose is = 180 g/mol
Therefore, the number of moles will be ;
140/180 = 0.7778 mole
1 mole of glucose contains 6 moles of carbon;
Then, 0.7778 moles will contain = 4.667 moles
the number of atoms in 1 mole is 6.02 × 10^23 atoms
The number of atoms in 4.667 moles will be :
4.667 × 6.02 × 10^23
= 2.81 × 10^24 atoms
Thus, 2.81 × 10^24 moles number of carbon atoms in a 140.0 g sample of glucose (C6H1206).
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When a pot of water is put on a stove, the water at the surface gets hot primarily by.
When a pot of water is put on a stove, the water at the surface gets hot primarily by conduction.
When a pot of water is put on a stove, the water at the surface gets hot primarily by conduction.
Conduction is the transfer of heat through a material by direct contact. When the pot is heated on the stove, the metal of the pot gets hot, and this heat is conducted to the water molecules in contact with the pot. These water molecules then transfer the heat to neighboring water molecules through conduction, and so on. As a result, the heat gradually spreads throughout the pot and heats up the water.
It's important to note that convection also plays a role in heating the water in a pot. As the water near the bottom of the pot gets heated, it becomes less dense and rises to the top, while cooler water near the top sinks to the bottom to replace it. This movement of water, called convection, helps to distribute the heat more evenly throughout the pot. However, in the initial stages of heating, when the water is still and has not yet started to convect, conduction is the primary mechanism by which the surface water gets heated.
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