Answer: The temperature of the gas if 65.85g of N2 are placed in 17.5L container with a pressure of 1988 mmHg is 1780. 6° C
Explanation:
The ideal gas law states that the volume, pressure and temperature of the a gas is related to the number of moles.
It is represented thus;
P V = n R T
Parameters :
Pressure, P = 1988 mmHg
Volume, V = 17.5 L
number of moles, n = mass ÷ molar mass
mass of N2 = 65.84g
Molar mass of N2 = 28.02 g/ mol
n = 65.85 ÷ 28.02
n = 2. 350 moles.
Temperature = ?
Universal gas constant, R = 8.314 J/mol. K
Calculations :
T = P V ÷ n R
T = 1988 × 17.5 ÷ 2.350 × 8.314
T = 34790 ÷ 19. 5379
T = 1780. 6 ° C
Thus, the temperature of the gas is 1780. 6 ° C
What is the name of this alkane? two central carbons are bonded to c h 3 at each end, h below, and c h3 above the left carbon and h above the right carbon. 1-methylbutane 2-methylbutane 1,2-triethylethane 1-dimethylpropane
The name of this alkane is with central carbons are bonded to c h 3 is 2-methylbutane.
What is alkane?
Alkanes belong to the family of saturated hydrocarbons with carbon carbon single bond.
For the given alkane;
CH₃ H
CH₃ - C - C - CH₃
H H
Thus, the name of this alkane is with central carbons are bonded to c h 3 is 2-methylbutane.
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Answer:
2-methylbutane
Explanation:
Which would most likely from a homogeneous mixture
Answer:
Sand would most likely be a homogeneous mixture
The weak base ionization
constant (Kb) for HCO3 is
equal to:
Weak bases are alkaline solution that does not get completely dissociated. The dissociation constant will be the ratio of the concentration of the products to the reactants.
What is a weak base ionization constant?The weak base ionization constant is the equilibrium constant that is given as the division of the products of the ionization to the concentration of the reactants.
The reaction for HCO₃ is given as:
HCO₃⁻ + OH⁻ ⇄ CO₃²⁻ + H₂O
The value of Ka for the given reaction will be:
Ka = [CO₃²⁻][H₂O] ÷ [HCO₃⁻ ][OH⁻]
Therefore, the Ka of the weak carbonic acid is given as the ratio of the concentration of the products to the reactants.
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Can someone help me?
Answer: 0.160 M
Explanation:
31. Can two (or more) types of matter occupy the same space at the same time?
32. What is hardest state of matter?
33. What is the softest state of matter?
how many neutrons does zinc have
Answer:
The number of protons is 30. Substitute the known values, where N represents the number of neutrons. Let's rewrite the equation as 30+N=65 30 + N = 65 .
Answer:
35 neutrons
Step by step explanation:
Atomic mass of Zinc: 65 amu (atomic mass units)
Number of protons in Zinc: 30
Number of neutrons in Zinc: Atomic mass of Zinc - Number of protons in Zinc = 65-30 = 35 neutrons.
Therefore, zinc atoms have 35 neutrons.
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How do intermolecular forces among entities in an ideal gas compare to those among entities in a real gas
Answer:
An ideal gas has identical particles of zero volume, with no intermolecular forces between them. The atoms or molecules in an ideal gas move at the same speed. Almost all gases obey the gas laws within a limited range of pressures and temperatures.
hope this helps!
When you insert a new slide in a presentation, where is it placed in relation to the existing slides?
When we insert a new slide in a presentation, it is placed next or below in relation to the existing slides.
Where should the new slide placed in relation to the existing slides?When we want to open a new slide we will Click on the New Slide button located on the Home tab in the Slides group. The new slide should appear below the selected slide.
So we can conclude that When we insert a new slide in a presentation, it is placed next or below in relation to the existing slides.
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HELP QUICKLY PLEASEEE
Answer:
Ionic bonds are when electrons are gained/lost. Hence the valence charges.
The electrons between atoms in metallic bonds
allow for bonding metals to be reactive.
allow for bonding metals to be stable.
are stationary and provide durability to the metal.
are attracted to the neutrons of the metal.
Answer:
Metallic bonding is the type of chemical bonding that occurs between atoms of metals. In a metallic bond, atoms share their electrons in a way that allows them to form a “sea” of free electrons. This electron sea is responsible for the unique physical and electrical properties of metals.
Explanation:
Answer:
B. allow for bonding metals to be stable.
Explanation:
edge 2022
Give an example of these types of organisms predator scavenger and decomposer
Predator - Lions (any animal that preys upon other animals)
Scavenger - Vultures (any animal that consumes decaying flesh)
Decomposer - Worms/ Fungi (any organism that breaks down dead organisms into smaller particles and creates new compounds such as nutrients for plants)
Which of the following measurements has 4 significant figures?
800. g
800.0 g
832,000 g
8000 g
Answer:
The answer is option D.
Explanation:
Hope it helps!
Answer:
8000g
Explanation:
option D is the correct answer.
What’s the importance of having a vascular system
Answer:
The vascular system, also called the circulatory system, is made up of the vessels that carry blood and lymph through the body. The arteries and veins carry blood throughout the body, delivering oxygen and nutrients to the body tissues and taking away tissue waste matter.
Explanation:
Which of the following statements supports the idea that light behaves as a wave?
A.
Photons change direction when they interact with electrons.
B.
Light bends as it passes from one medium to another.
C.
The kinetic energy of an electron increases when light of high frequency is incident on it.
D.
There are gaps in the absorption spectrum as light is absorbed at certain frequencies.
Answer:
It's B
Explanation:
as I answered it in study island.
When electrical ___ betweens protons is greater than strong forces, the nucleus will be unstable.
Answer:
repulsion
Explanation:
What does the big bang theory state
Terbium-147 undergoes positron emission to become a stable atom. what is that stable atom? a. b. c. d. e. f.
Terbium-147 undergoes positron emission to become a stable atom, the stable atom is ₆₄Gd¹⁴⁷.
What are radioactive decay series?Series (or family) of natural radioactive decay is the set of elements with unstable nuclei, which follow an orderly sequence of spontaneous decay, that is, they emit alpha and beta particles, until a stable lead nucleus is created.
In this case, natural radioactive decay occurs when the nucleus of the atom of some chemical element is unstable and then it "breaks", releasing electromagnetic radiation and disintegrating.
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Which are the products in the equation ch3sh 4o2 → co2 so2 2h2o? check all that apply. ch3sh o2 co2 so2 h2o
The products in the equation would be [tex]CO_2[/tex], [tex]SO_2[/tex], and [tex]H_2O[/tex].
Chemical equationsFrom the equation of the reaction:
[tex]CH_3SH + 4O_2 --- > CO_2 + SO_2 +2H_2O[/tex]
The products are [tex]CO_2[/tex], [tex]SO_2[/tex], and [tex]H_2O[/tex].
This is because, for every chemical equation, the reactants are always at the back of arrows while products are at the front of arrows. In other words, reactants are usually on the left-hand side while products are on the right-hand side.
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What is the approximate tangential speed of an object orbiting earth with a radius of 1.8 × 108 m and a period of 2.2 × 104 s? 7.7 × 10–4 m/s 5.1 × 104 m/s 7.7 × 104 m/s 5.1 × 105 m/s
This question involves the concepts of time period and tangential speed.
The tangential speed of the object is "5.1 x 10⁴ m/s".
What is the time period?The following formula gives the time period of the object:
[tex]T=\frac{2\pi}{\omega}\\\\[/tex]
[tex]\omega = \frac{2\pi}{T}[/tex]
where,
[tex]\omega[/tex] = angular speed = ?T = time period = 2.2 x 10⁴ sTherefore,
[tex]\omega=\frac{2\pi}{2.2\ x\ 10^4\ s}\\\\\omega=2.86\ x\ 10^{-4}\ rad/s[/tex]
Now, the tangential speed can be given by the following formula:
[tex]v=r\omega[/tex]
where,
r = radius = 1.8 x 10⁸ mv = tangential speed = ?Therefore,
[tex]v=(1.8\ x\ 10^8\ m)(2.86\ x\ 10^{-4}\ rad/s)[/tex]
v = 5.1 x 10⁴ m/s
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Answer: 5.1 x 10⁴ m/s
Explanation:
edge 2023
What is the major defining property of gasses?.
Answer:
Gases have no definite shape or volume. They are fluid, allowing particles/molecules to move freely.
The behavior of a gas is that the volume changes directly with temperature. With a constant volume, the pressure will be directly proportional to the amount of gas.
Explanation:
These are some of the properties I can think of
what is your question in climate change?
Answer:
Why has my town experienced record-breaking cold and snowfall if the climate is warming? Is there scientific consensus that people are causing today's climate change? Do natural variations in climate contribute to today's climate change?
Explanation:
Yan po ang answer tama po yan
What does the number at the end of an element mean? (For example, Hydrogen-3)
Answer:
The top number is the total mass number, particles in an atom of an element that have mass are protons and neutrons.
Explanation:
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if 500 g of iron absorbs 22000 cal of heat, what will be the change in temperature? (specific heat of iron = 0.11 cal/gC)
Answer:
400°C
Explanation:
22,000 cal / (0.11 cal/g°C x 500 g) = 400°C
Answer:
400 C degree change
Explanation:
22 000 cal = 500 g * (C) * .11 cal / g-C
C = 22 000 / (500*.11) = 400 C degree change
from the following chemical reaction , calculate the moles of mg if 3.5 mol of hcl in reactant mg + 2hcl --> mgcl2 + h2
The
gas pressure in an oxygen tank is 3.90 atm at a
If temperature of 298 K. If the pressure decreases to 3.20 atm,
what is the temperature of the gas in kelvin?
Answer: …
Explanation:
what's Electro magnetic radiation?
Answer:
a kind of radiation including visible light, radio waves, gamma rays, and X-rays, in which electric and magnetic fields vary simultaneously.
What are some of the benefits of being able to predict natural disasters and knowing when and where they might occur?
What is the oxidation number of sulfur in na2s2o3 ?.
Answer:
Therefore, the oxidation state of sulphur atoms in Na2S2O3 is −2 and +6.
how do atoms show both unity and diversity
Answer: As one atomic dipole nears another atom it will affect the electron density distribution, so for example if the slightly positive end of the atom is located next to another atom, it will attract the electron(s) in the other atom. A covalent bond happens when atoms share an electron between them. The other kind of bond is called ionic, and it happens when one atom gives an electron to another atom. These bonds are held together with electric forces. Two atoms of the same element can be different if their electrons are in different states. If one copper atom has an electron in an excited state and another copper atom has all of its electrons in the ground state, then the two atoms are different.
Answer:
there are relatively few atoms but they can make many molecules
Explanation:
How many grams of carbon dioxide would be produced from the following reaction, if 175 kJ of energy is given off? 2 CO + O2 2 CO2 ΔH = -566 kJ
42.6897 grams of carbon dioxide would be produced from the following reaction, if 175 kJ of energy is given off.
How do we calculate moles?The mole (symbol mol) is the SI base unit of material quantity. The amount of substance in an object or sample is a measure of how many elementary entities of a certain substance are present.
Given chemical reaction is:
[tex]2CO + O_2[/tex] → [tex]2 CO_2[/tex]
From the stoichiometry of the reaction, it is clear that 2 moles of carbon dioxide are produced.
Actual moles will be calculated by using the enthalpy and energy value as:
Actual moles of [tex]CO_2[/tex] = 275kJ × ([tex]\frac{2 mol}{566 kJ}[/tex]) = 0.97 moles.
Grams of carbon dioxide = moles X molar mass of carbon dioxide.
Grams of carbon dioxide = 0.97 X 44.01 g/mol
Grams of carbon dioxide = 42.6897 g
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