What kind of intermolecular forces act between a chloromethane molecule and a chloroacetylene molecule
Dipole to Dipole force
Explanation:
A dipole to dipole forces exists between these molecules
Compounds I and II can be distinguished by comparing the number of signals in their 1H NMR spectra. How many signals are expected in the 1H NMR spectrum of each compound
The spectrum of the first compound will have only one signal, but the spectrum of the second compound will have two signals.
What is a compound?A compound is a substance formed by combining two or more different chemical elements in such a way that the atoms of the individual elements are linked together by chemical bonds that are difficult to break in chemistry.
Hence it is right to state that the spectrum of the first compound will have only one signal, but the spectrum of the second compound will have two signals.
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The pressure for 1.0 mol of a gas at 0oC in 3.0 L container is calculated to be 7.5 atm using the ideal gas equation (PV = nRT). The pressure of the gas is measured and found to be 7.1 atm. Which of the following best explains the reason for the discrepancies in the two values?
The best explanation would be that the temperature of the gas has dropped before measuring the pressure.
Relationship between temperature and pressure of gasesAccording to pressure law, the pressure of a gas is directly proportional to its temperature, provided the volume of the gas remains constant.
Thus, since the initial pressure of the gas was calculated to be 7.5 atm, the temperature of the gas must have dropped in order for the measured pressure to be 7.1 atm.
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The ph of a solution is 7. When acid is added to the solution, the hydronium ion concentration becomes 100 times greater. What is the ph of the new solution?.
After acid was added to the solution and the hydronium ion concentration becomes 100 times greater, the pH of the new solution is 5.
What is pH of solution?The pH of a solution is defined as the logarithm of the reciprocal of the hydrogen ion concentration [H+] of the given solution.
It is expressed as;
pH = -log[ H⁺]
Given that;
pH of the solution = 7Hydronium ion concentration H⁺ = ?pH = -log[ H⁺]
H⁺ = 10^( -pH )
H⁺ = 10^( -7 )
H⁺ = 10⁻⁷
When acid is added to the solution, the hydronium ion concentration becomes 100 times greater.
H⁺ = 10⁻⁷ × 100
H⁺ = 10⁻⁵
pH of the new solution will be;
pH = -log[ H⁺ ]
pH = -log[ 10⁻⁵ ]
pH = 5
Therefore, after acid was added to the solution and the hydronium ion concentration becomes 100 times greater, the pH of the new solution is 5.
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Islam's message of peace if universal, as without it there can be no happiness
A. Good
B. Applicable to all the people in the world
C. Acceptable
D. None of these
ANSWER
B po yung ans:)
The stigma on the underside of the leaf allows________to move in and out of the leaf
Answer:
The stigma on the underside of the leaf allows Gas and Water Vapour to move in and out of the leaf
Do you like the eye color black or blue better?
Answer:
black.
Explanation:
I like seeing myslef, so therefore with black eyes I would be seeing my reflection
what information we get Chemical equation ?
Answer:
We get the following information from a chemical equation :--1. We get the symbol and formulas of the reactants and products.
2. The physical state of the reactants and products.
3. From this reaction, we can know the molecular formula of ammonia, water and nitrogen.
4. Here all the species are in a gaseous state.
5. The reaction takes place at a high temperature and pressure.
6. Zinc metal reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas. This equation is written as:
Zinc metal reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas. This equation is written as: Zn+H2SO 4→ZnSO 4 +H2.
What is the formula for the compound iodine trichoride?
Answer:
The formula is CI 3 I. Hope this helps!
Answer:
ICl3.
Explanation: trust me
Give the name for the alkyl.
Let's see
Calculate carbons
Total 3 ,prop word root to be usedCheck bondings
All single bondsThe compound is
-CH2-CH2-CH3The name is
PropylWhat do you mean by cation and anion
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
Cations are ions that has a positive charge on it, and since it's a positive charge, it means that the ion has more protons than the number of electrons.
On the same contray, Anions are negatively charged particles having more electrons than protons in it, and hence bearing a negative charge.
property : non - alike ions attract each other by electrostatic force.
Answer:
Cations are positively-charged ions.
Anions are negatively-charged ions.
Calculate the volume of 100. grams of oxygen gas (O₂) at 25.0°C and a pressure of 1.25 atm.
Ideal gas law states
PV = n(RT)V is volume (L), P is pressure (atm), R is universal gas constant: 0.0821 L·atm/mol· K, n is number of moles, T is temperature in Kelvin
Here given:
[tex]\blacksquare[/tex] mass of O₂ : 100 gram
[tex]\blacksquare[/tex] moles: mass/molar mass = 100/32 = 3.125 moles
[tex]\blacksquare[/tex] 25.0 °C = (25+273.15) = 298.15 K
[tex]\blacksquare[/tex] pressure: 1.25 atm
Volume:
[tex]\boxed{\sf V=\dfrac{nRT}{P}}[/tex]
[tex]\Rightarrow \sf V=\dfrac{(3.125 \ x \ 0.0821 \ x \ 298.15 )}{1.25}[/tex]
[tex]\Rightarrow \sf V=61.195 \ L[/tex]
[tex]\Rightarrow \sf V=61.2 \ L \ \ \ (rounded \ to \ nearest \ tenth)[/tex]
Additional Explanation:
Volume can be counted in multiple units.In Liters: 61.2 Liters
In cubic meter: 0.061163 m³
In cubic centimeter: 61,163.5 cm³
What weight (in grams) of h2so4 would be needed to make 750.0 ml of 2.00 m solution?
Answer:
I think the answer should be 147
Explanation:
If 6.3 moles of O2 and 8.15 moles of N2 are placed in a 65.1 L tank at a
temperature of 348 C, what will the pressure of O2?
Answer:
Partial pressure of O2 = 4.93 atm
Explanation:
PV = n RT R = .082057 L-atm/mol-K
n = 6.3 + 8.15 = 14.45 moles
348 C = 621.15 K
P (65.1) = 14.45 ( .082057)(621.15) = 11.31 atm
Now the fraction of pressure from Oxygen is
6.3 / (6.3+8.15) * 11.31 = 4.93 atm
How many grams of CO₂ gas would occupy 33.7 L of volume at a temperature of
-22.2°C and a pressure of 990 mm Hg?
1.3atm
Let's see
moles of CO_2
PV=nRTn=PV/RTn=990(33.7)/(251.8)(8.314)n=15.9molMass of CO_2
Molar mass×n15.9(44)699.6gAn Glu amino acid is found in the core (interior) of a water-soluble FOLDED protein (meaning its happy there). What must happen to the pKa of its side-chain group
Glutamic amino acid is the non-essential amino acid and an excitatory neurotransmitter. When Glu is found in the core then the pKa of the side chain group increases.
What is pKa?pKa is the acid strength or the estimate that shows whether the solution is weak or strong acid. pKa less than zero is a strong acid and portrays the bonding of the proton by the acids.
In the Glu amino acid, the value of the pKa of the side chain functional groups increases as the amino acid is found in the interior of the water-soluble folded protein structure.
Therefore, the pKa of the side-chain increases.
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a)6.144
b)0.644
c)-0.644
Answer:
b
Explanation:
is the dictionary definition of a word.
is the feeling or idea associated with a word.
What isotope has 45 protons and 57 neutrons
…Answer:
Explanation:
What type of pollution is pictured here?
Answer:this air polluction here.
Explanation:
air and soil polluction
Can Someone help me please…
1 How do scientists mfasure population and changes in
2 What causes populations and ecosystems to remain stable or to
change over time?
3 What factors affect populations within an ecosystem?
4 How do modest or drastic changes in ecosystems affect ecosystem
stability?
Answer:
1.Ecologists often estimate the size and density of. populations using quadrats and the mark-recapture method.
2. The two key components of ecosystem stability are resilience and resistance.
3.The availability of abiotic factors (such as water, oxygen, and space) and biotic factors (such as food) affect population
4. When the climate is changing in the colder direction it effects the planet in the opposite way than it does when it is changing in the warmer direction. Ad nauseam the contemporary, it’ll keep getting hotter and at a greater rate so the ecosystem is going to die.
What is the maximum mass of ammonia that can be formed when 36.52 grams of nitrogen gas reacts with 10.62 grams of hydrogen gas according to the following equation? Please round your answer to the nearest 0.01 gram.
N2 + 3 H2 = 2 NH3
The maximum mass of NH₃ that can be formed when 36.52 g of N₂ reacts with 10.62 g of H₂ is 44.35 g
Balanced equationN₂ + 3H₂ —> 2NH₃
Molar mass of N₂ = 14 × 2 = 28 g/mol
Mass of N₂ from the balanced equation = 1 × 28 = 28 g
Molar mass of H₂ = 2 × 1 = 2 g/mol
Mass of H₂ from the balanced equation = 3 × 2 = 6 g
Molar mass of NH₃ = 14 + (3×1) = 17 g/mol
Mass of NH₃ from the balanced equation = 2 × 17 = 34 g
SUMMARY
From the balanced equation above,
28 g of N₂ reacted with 6 g of H₂ to produce 34 g of NH₃
How to determine the limiting reactantFrom the balanced equation above,
28 g of N₂ reacted with 6 g of H₂
Therefore,
36.52 g of N₂ will react with = (36.52 × 6) / 28 = 7.83 g of H₂
From the above calculation, we can see that only 7.83 g out of 10.62 g of H₂ are required to react completely with 36.52 g of N₂.
Therefore, N₂ is the limiting reactant
How to determine the maximum mass of NH₃ producedFrom the balanced equation above,
28 g of N₂ reacted to produce 34 g of NH₃
Therefore,
36.52 g of N₂ will react to produce = (36.52 × 34) / 28 = 44.35 g of NH₃
Thus, the maximum mass of NH₃ obtained from the reaction is 44.35 g
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9. An empty, massless cube is measured to have all sides equal to 11 cm. It is floating in water and will slowly be filled with sand
that has a density of 3.5 g/cm'. What volume of sand will cause the box to sink?
sink: w cube+w sand>Fb(buoyant force)
w cube = massless = 0
w sand>Fb
w sand > 1000 x 10 x (11/100)³
w sand > 13.31 N
ρgV sand > 13.31
3.5 x 10³ x 10 x V sand > 13.31
V sand = 13.31 : 3.5 x 10⁴ = 3.803 x 10⁻⁴ m³ = 380.3 cm³
What is the temperature, in degrees Celsius, of a substance with a temperature of 49K?
Aluminum Oxide is formed when aluminum combines with oxygen in the air. How many grams of Al2O3 are formed when 23.6g of Al reacts completely with oxygen?
The amount of [tex]Al_2O_3[/tex] that would be formed will be 44.59 grams
Stoichiometric calculation
From the equation of the reaction:
[tex]4Al + 3O_2 --- > 2Al_2O_3[/tex]
The mole ratio of Al to [tex]Al_2O_3[/tex] is 2:1
Mole of 23.6 g Al = 23.6/26.98 = 0.87 moles
Equivalent mole of [tex]Al_2O_3[/tex] = 0.87/2 = 0.44 moles
Mass of 0.44 mole [tex]Al_2O_3[/tex] = 0.44 x 101.96 = 44.59 grams
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Plan an investigation to examine the relationship between the amount of gas
and its volume. Identify the materials and write a procedure, identifying the
constants and variables. Conduct the investigation and record your
observations.
I can’t think of anything to use for this experiment and we aren’t told what to use so if anyone had any ideas for that I would really appreciate it
Answer:
You will need a Kukushili pressure cooker for this experiment. This pressure cooker will allow you to compress the gases and observe its volume.
A fish has armored plates that enable it to handle the extreme pressure in the deepest, darkest aquatic ecosystem. Where is this fish adapted to live? a pond the open ocean the neritic zone an estuary.
Sodium metal (Na) reacts with chlorine gas ( Cl2 ) to produce solid sodium chloride (NaCl).
A) Write an unbalanced chemical equation for this reaction.
B) explain why the equation is unbalanced
Please help me answer A and B
The unbalanced equations are the equations with different atomic numbers on the sides of the reaction. The unbalanced reaction is Na + Cl₂ → NaCl
What are balanced equations?Balanced equations are the chemical reaction representation that has an equal number of the atomic number of the same species on the left and the right side of the reaction.
An unbalanced equation between sodium metal and chloride can be shown as:
Na + Cl₂ → NaCl
The equation is unbalanced as the number of chloride ions is more on the reactant side than the product side.
The balanced reaction will be:
2 Na + Cl₂ 2NaCl
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PLEASE HELP!!! HOW DO I DO THIS??
What is the Ka of a weak acid with a molarity of 0.333 and a pH of 4.6?
A sample of lead released 2,744 J when it cooled from 90 to 19 °C. What was the
mass of the sample of lead? (The specific heat of lead is 0.129 J/g x °C)
Answer:
299.60 g
Explanation:
Use the formula q = mCΔT (q= heat, m= mass, c = specific heat for that specific substance, ΔT is change in temperature Final Temp - Initial Temp)
Released heat means it has negative sign.
q = mCΔT
-2744 = (mass) (0.129) (19-90)
mass= 299.60 g
a gas exerts a pressure of 1.00 atm at 273 K. At what tempreture the gas exerts a pressure of 4.00 atm.
Considering Gay-Lussac's law, a gas exerts a pressure of 4.00 atm at 1,092 K.
Gay-Lussac's lawGay-Lussac's law states that the pressure of a gas is directly proportional to its temperature: when there is a constant volume, as the temperature increases, the pressure of the gas increases. And when the temperature is decreased, gas pressure decreases.
Gay-Lussac's law can be expressed mathematically as follows:
[tex]\frac{P}{T}=k[/tex]
where P= pressure, T= temperature, k= Constant
This law states that the ratio of pressure to temperature is constant.
Studying an initial state 1 and a final state 2, it is fulfilled:
[tex]\frac{P1}{T1}=\frac{P2}{T2}[/tex]
Final temperatureIn this case, you know:
P1= 1 atmT1= 273 KP2= 4 atmT2= ?Replacing in Gay-Lussac's law:
[tex]\frac{1 atm}{273 K}=\frac{4 atm}{T2}[/tex]
Solving:
[tex]T2\frac{1 atm}{273 K}=4 atm[/tex]
[tex]T2=\frac{4 atm}{\frac{1 atm}{273 K}}[/tex]
T2= 1,092 K
Finally, a gas exerts a pressure of 4.00 atm at 1,092 K.
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