The wavenumber of the scattered stokes is 20475.0108cm-1
Data;
wavelength = 20487 cm-1wavenumber = ?Δv = ?Rotational Quantum Numberlet's make
J' = excited rotational quantum number
J" = ground rotational quantum number
B = rotational constant
for
J = 2 -- 0
J' = 2, J" = 0
[tex]\delta V = B * 2*3 - B*0(0+1)\\\delta V = 6B[/tex]
The rotational constant B for N2 = 1.9982 cm-1
[tex]\delta V = 6 * 1.9982 = 11.9892 cm^-^1[/tex]
The wave number of the scattered stokes radiation is given by
[tex]\delta V_s = V_e_x - \delta V[/tex]
substituting all values across
[tex]\delta V_s = 20487 - 11.9892\\\delta V_s = 20475.0108 cm^-^1[/tex]
The wavenumber of the scattered stokes is 20475.0108cm-1
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Sodium is metal or nonmetal
Answer:
sodium is a metal,It's known as soft and silvery.
PLEASE HELP ME ASAP SCREENSHOT DOWN BELOW
Answer:
Elevation.
Explanation:
Although latitude is a very important factor in temperature, Las Vegas and Mt. Charleston are pretty close to each other, which makes me think that elevation would be the only thing that could explain the extreme difference in temperature.
Give differences between acids and bases
Answer:
An acid increases the concentration of H+ ions. A base is a substance that releases hydroxide (OH-) ions in aqueous solution, donates electrons and accepts protons. An acid is a proton donor. A base accepts a proton.Explanation:
Consider the following reaction: 3NH,NO,
Na PO, (NH), PO, + 3NaNO,
Assuming we started with 30 grams of
ammonium nitrate and 50 grams of sodium
phosphate. Which of the reagents is the
limiting reagent?
Answer:
installe mo TRUE ID
Explanation:
bobo ang brainly
What is the molarity of a solution that contains 4.50 mol of NaF dissolved in 750.0 mL of solution
Answer:
6.00 Ml
Explanation:
I hope this helps
9. A strong acid is used as a titrant against a weak base. What would be the most likely pH for the equilibrium point? A.2.1 O B. 7.0 O C.8.2 O D. 6.6
D. 6.6
Strong acid pH range < 3
weak base pH range 8-11
A strong acid is used as a titrant against a weak base. The most likely pH for the equilibrium point will be 6.6.
What is pH?pH, a scale that quantifies the acidity as well as basicity of liquid solutions that are aqueous or other.
What is acid?Any acid which entirely ionizes in solutions would be considered a strong acid. This indicates that when dissolved in a solution, it emits the most hydrogen ions as well as protons.
The pH will not neutral there at an equivalence point when a weak base is compared to a strong acid. The solution is just in fact acidic (pH ≅ 6.6) there at the equivalency point.
Therefore, the correct answer will be option (D).
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(05.03 LC)
How many atoms of hydrogen are there in one molecule of water, if the chemical formula is H2O?
OO
오
01
02 03
the number of carbon atoms in 2 moles of carbon?
Answer:
1232.896 carbon atoms
Explanation:
In one mole of carbon, there are 6.02×1023 atoms. So in two moles, there will be : 1.204×1024 .
1232.896 carbon atoms
hope this helps
finish the equation. must be balanced with phases. please help
Answer: 2Li+(aq) + SO42-(aq) + Ca2+(aq) + 2NO3-(aq) = 2Li+(aq) + 2NO3-(aq) + CaSO4(s)
Explanation:
Li2SO4 + Ca(NO3)2 → LiNO3 + CaSO4
Lithium Sulfate + Calcium Nitrate = Lithium Nitrate + Calcium Sulfate
Balanced:
Li2SO4 + Ca(NO3)2 → 2LiNO3 + CaSO4
Write the state for each molecule if as aqueous, solid or liquid. All nitrates are normally soluble and sulfates are also soluble with few exceptions which are partially soluble.
2Li+(aq) + SO42-(aq) + Ca2+(aq) + 2NO3-(aq) = 2Li+(aq) + 2NO3-(aq) + CaSO4(s)
What is the relationship between the number of molecules and the mass of 22.4 L of different gases at STP?
The volume occupied by one mole of gas at stp is known as the standard molar volume of a gas. It has been found to be 22.41410 L. According to Avagadro's law, one mole of any gas will occupy the same volume as one mole of any other gas at the same temperature and pressure, despite mass difference. Knowing the volume of gas, you can use 1 mol/22.4L as a conversion factor to find the number of moles, and therefore the mass, of a given volume of a given gas at STP.
Behaviour of gases:
In gases, the molecules are far apart and mutual interaction amongst the molecules are negligible except when they collide.At low temperature and high pressure, the gases follow a simple reaction:ㅤㅤㅤ ➝ PV = KT
Natural resources are distributed ____across the Earth.
Question 2 options:
underground
safely
easily
unequally
Answer:
unequally
Explanation:
this is because many different physical factors vary massively over the earth
Walruses live in very cold regions. Unlike many animals that live in cold regions, walruses do not have a thick coat of fur to insulate their bodies and keep them warm. Which of the following characteristics most likely allows the walrus to survive in extremely cold temperatures? A. Walruses store fat and have a thick layer of blubber. B. Walruses have short, bristled whiskers on their faces. C. Walruses have an air sac in their throats that allows them to float in water. D. Walruses have two tusks that can grow to over a meter long.
Answer:
d is the right anwer
Explanation:
write an introductory text about metals, adding details you know
How do you think new technology has helped scientists learn about genes and proteins?
Answer:
Advances in Technologies with Relevance to Biology: The Future Landscape
This chapter provides an overview and a perspective on the breadth and types of technologies that may have an impact on the life sciences enterprise of the future, with the understanding that there are inherent difficulties in anticipating or predicting how any of these technologies alone or in combination will alter the nature of the future threat “landscape.”
Rather than attempt to cover the technology landscape in a comprehensive manner, this chapter (1) highlights technologies likely to have obvious or high-impact near-term consequences; (2) illustrates the general principles by which technological growth alters the nature of future biological threats; and, (3) highlights how and why some technologies are complementary or synergistic in bolstering defense against future threats while also enhancing or altering the nature of future threats.
.
Explanation:
Please answer this question according to the image below
for the molecule shown below, please answer the following questions.
1. how many carbon atoms are there?
2. how many p-orbitals are involved in π bonds in this molecule?
3. how many Ione pairs of electrons must be added?
4. how many formal positive charges must be added?
When we show the structure of a molecule, we see the arrangement of atoms in the molecule.
Structure of moleculesThe structure of a molecule shows the arrangement of atoms in the molecule.
1) There are 24 carbon atoms in the molecule.
2) There are 30 p- orbitals that are involved in pi bonds in the molecule.
3) We need to add 22 lone pairs of electrons
4) We do not need to add any formal positive charge to the molecule.
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The molar mass of PdCl2 is The molar mass of PdCl2 is
Answer:
176.9 g/mol
Explanation:
You have to add the molar masses of the constituent atoms. The molar mass of palladium is 106.42 g/mol and the molar mass of chlorine is 35.45g/mol so 106 + 2(35.45) = 176.9 g/mol
What is the name for Mg2PO3?
1. A 35.3 g of element M is reacted with nitrogen to produce 43.5 g of compound M3N2 What is (i) the molar mass of the element and (ii) name of the element?
1. The molar mass of the element M is 40 g/mol
2. The name of the element is calcium (Ca)
Description of mole
The mole an element is related to it's mass and molar mass according to the following equation:
Mole = mass / molar mass
How to determine the mass of nitrogen Mass of M = 35.3 gMass of compound = 43.5 gMass of nitrogen =?Mass of nitrogen = 43.5 – 35.3
Mass of nitrogen = 8.2 g
1. How to determine the molar mass of MMass of nitrogen = 8.2 gMolar mass of nitrogen = 14 g/mol Formula of compound = M₃N₂Mole ratio of M to nitrogen = 3 : 2Mass of M = 35.3 gMolar mass of M = y =?Mole of M : Mole of nitrogen = 3 : 2
35.3 / y ÷ 8.2 / 14 = 3 : 2
(35.3 / y) × (14 / 8.2) = 3 / 2
494.2 / 8.2y = 3 / 2
Cross multiply
8.2y × 3 = 494.2 × 2
24.6y = 988.4
Divide both side by 24.6
y = 988.4 / 24.6
y ≈ 40 g/mol
Thus, the molar mass of the element is 40 g/mol
2. How to determine the name of the element Molar mass of element = 40 g/mol Name of element =?From the periodic table, the element having a mass number of 40 is Argon and Calcium. Since argon will not react with nitrogen to produce Ar₃N₂.
Therefore, we can conclude that the element is calcium since it can react with nitrogen as illustrated by the equation
3Ca + N₂ —> Ca₃N₂
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Question 5(Multiple Choice Worth 5 points)
(01.02 LC)
A chemist reported that 100 gallons of a gas were available in a laboratory. Which property of the gas did the chemist report?
O Length
O Mass
O Temperature
O Volume
Answer:
volume
Explanation:
this is because gallon is a unit of volume.
pls give brainliest
The property of the gas that was used by the chemist's report is volume. The correct option is D.
What is volume?
Volume is a scalar quantity that is used to measure the space occupied by a three-dimensional object. In terms of liquid and gas, the volume is measured as the capacity of the container that contains a liquid.
Gas is a state of matter that has no regular shape and no fixed volume. They have the lowest density and their moles are farthest from each other.
Gallon is a unity of volume that is used in the metric system of the United States. There are 100 gallons of gas in the container, the volume of gas is the total number of moles of the gas in a container.
Thus, the correct option is D. Volume.
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How much of the 0.2M stock solution of NaCl did you need to make a 100mL
dilution of NaCl at final concentration 0.05M? Please give your answer in units of
MILLILITERS, however do not explicitly include any units in your answer.
The amount of 0.2 M stock NaCl that would be required to make 100 mL, 0.05 M NaCl would be 25 mL
DilutionUsing the equation of dilution:
M1V1 = M2V2
In this case, M1 = 0.2M, V1 = ?, M2 = 0.05 M, V2 = 100 mL
V1 = M2V2/M1
= 0.05 x 100/0.2
= 25 mL
The volume of the stock solution needed is 25 mL
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which weather would create the largest surfing waves?
Answer:
I think It Is C
Explanation:
Im really sry if i am wrong
How many cookies are there in one mole of cookies?
what's the full question so i can give you an answer?
What threatens the health of coral reefs? (Select all that apply.) increased diversity of coral polyp species coastal land development silt runoff ocean water pollution damage from scuba diving, boating, and fishing
Corals are a key part of world's diversity .
I have done the quiz so here is the answer:
coastal land development
ocean water pollution.
damage from scuba driving, boating and fishing.
Which is not a physical property?
ability to combine with hydrogen
hardness
ability to conduct electricity
bolling point
Answer: Ability to combine with hydrogen
Explanation:
The ability to combine with another substance is called reactivity and it is classified as a chemical property, not physical
Plants can cause which type of weathering? physical weathering chemical weathering both physical and chemical weathering
Answer:
Both physical and chemical
Explanation:
Plants are able to release toxins and show withering through stages. When a plant has a certain smell, it means it is going through a chemical change, but when you see a plant turning brown, it goes through a physical change.
Formation of Ionic bond
1. Formation of magnesium fluoride.
Answer:
Magnesium fluoride is prepared from magnesium oxide with sources of hydrogen fluoride such as ammonium bifluoride: MgO + (NH4)HF2 → MgF2 + NH3 + H2O. Related metathesis reactions are also feasible. The compound crystallizes as tetragonal birefringent crystals.
If a solution has a concentration of 12 M when the volume is 150 mL. What is the new concentration if you increase the volume to 600 mL? (1
sig fig)
M
Answer:
The idea with diluting a solution is that the number of moles of solute will remain constant after the initial solution is diluted. The only ...
Explanation:
hope it helps you
Radioactive iodine, lodine 131, is used in Thyroid cancer therapies. Its half life is 8
days. If a patients is given a total dose of 1 gram of lodine 131, how much will be
left in the patients blood stream after 32 days? *include units*
PLSS HELP!!
Answer: 0.0625 grams left in the patients blood stream
Explanation:
half life formula: A = o(1/2)^t/d
A represents answer, o represents original amount of iodine used, t represents time iodine is used for, d represnts half life of iodine.
A = 1(1/2)^32/8
A = 0.0625 grams left in the patients blood stream
The pH of a basic solution is 9.77. What is [OH⁻]?
The [OH⁻] of the solution is 5.37×10⁵ M.
What is pOH?This is the negative logarithm to base 10 of hydroxy ion [OH⁻] concentration.
To calculate the hydroxy ion [OH⁻] concentration we use the formula below.
Note:
pH+pOH = 14pOH = 14-pHpOH = 14-9.77pOH = 4.27Formula:
[OH⁻] = 1/[tex]10^{pOH}[/tex]................. Equation 1Given:
pOH = 4.27Substitute the value into equation 1
[OH⁻] = 1/[tex]10^{4.27}[/tex][OH⁻] = 5.37×10⁵Hence, The [OH⁻] of the solution is 5.37×10⁵ M.
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The concentration of the hydroxide ion [OH¯] in the solution is 5.89×10¯⁵ M
How to determine the pOHFrom the question given above, the following data were obtained:
pH = 9.77pOH =?pH + pOH = 14
9.77 + pOH = 14
Collect like terms
pOH = 14 – 9.77
pOH = 4.23
How to determine [OH¯]pOH = 4.23Concentration of Hydroxide ion [OH¯] =?pOH = –Log [OH¯]
4.23 = –Log [OH¯]
Multiply through by –1
–4.23 = Log [OH¯]
Take the anti-log of –4.23
[OH¯] = anti-log (–4.23)
[OH¯] = 5.89×10¯⁵ M
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Help me with this question
[tex]\Large \text{1)}[/tex]
[tex]\textbf{Use the formula and substitute the values}[/tex]
[tex]\displaystyle 0.3\ mol/L = \frac{n \ mol}{10 \times 10^{-3}\ L}[/tex]
[tex]\textbf{Solve for the number of moles}[/tex]
[tex]n = 0.003\ mol[/tex]
[tex]\textbf{Calculate final volume }[/tex]
[tex]40+10=50\ mL[/tex]
[tex]\textbf{Number of moles remains same. Solve for concentration}[/tex]
[tex]\displaystyle C=\frac{0.003\ mol}{50 \times 10^{-3}\ L} =0.06\ mol/L[/tex]
[tex]\Large \text{2)}[/tex]
[tex]\displaystyle DF=\frac{V_f}{V_i}[/tex]
[tex]\displaystyle DF=\frac{50}{10}=5[/tex]