Cual sera el numero de mol de 153,26gr de KMnO4

What will be the number of mol of 153.26gr of KMnO4​

Answer: 10.7 grams

Therefore, 10.7 grams of Hydrogen are necessary to fully react with 50.0 grams of Nitrogen.

a) Mg is oxidized and O2 is reduced

b) Zn is oxidized while Pb(NO3)2 is reduced.

Oxidation is defined as:

Reduction is defined as:

Looking at the first reaction, the Mg atom gains oxygen to become MgO. This means that Mg is oxidized. The oxidizing agent is O2. At the same time, O2 is being reduced and the reducing agent is Mg.

For the second reaction, the oxidation number of Pb is reduced from +2 to 0. Thus, Pb has been reduced by Zn while Zn itself has been oxidized. The reducing agent here is Zn while the oxidizing agent is Pb(NO3)2.

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Answer: type the compound into your search bar then it should tell you what it is for 3. you should look up "what is the formula for -----" same thing for #4

Explanation:

Answer:

2.a.  germanium tetrahydride

2.b. dinitrogen tetrabromide

2.c. diphosphorus pentasulfide

2.d. selenium dioxide

2.e. nitrogen trihydride

2.f. silicon dioxide

3.a. PO3

3.b. SiCl4

3.c. N2O5

3.e. N2O4

3.f. CO

4.a CO2

4.b. SF6

4.c. N2Cl4

4.d. CI4

4.e. PF5

4.f. P2O5

****All numbers are subscripts, please do not write them as is, but to the bottom right of them like shown in the options from question 2.

Explanation:

To name covalent compounds (NM+NM), we use prefixes.

To name covalent compounds goes as follows:

First, name the first element in the formula the normal name it has (ex. Nitrogen, Oxygen). If the first element is present more than once shown by a subscript, use a prefix that will indicate how many there are present (ex. mono, di, tri).

Next, name the second element in the compound using prefixes aswell if present more than once. These elements though, will end with -ide instead of their original name (ex. monoxide, dibromide, trichloride).

Answer:

Explanation:

a) 202.4 g

b) 185.24 m

c) 0.13 dm

d) 6.91 L

e)0.0546 mol

f) 2.7 s

g) 42kg

h) 0

i) -0.11 g

j) -0.34 mL

Answer:

Pupa Stage

Explanation:

Silk worm consists of four stages- the adult, the egg, the larva (caterpillar) and the pupa stage.

This is mind numbing, but I got you.

3NaOH + 1FeCl3 = 1Fe(OH)3 + 3NaCl

3Mg + 2H3(PO)4 = 1Mg(PO4)2 + 3H2

Explanation:

charged particles=8 which is proton and proton=no.of electron. That's why 8 particles are revolving round this center. And this atom structure is of oxygen

If the center of an atom has 8 charged particles that are protons as the neutrons are neutral there will be 8 negative charges that are electrons revolving around the center nucleus.

An atom is defined as the smallest unit of matter which forms an element. Every form of matter whether it is  solid,liquid or  gas consists of atoms . Each atom has a nucleus which is composed of protons and neutrons and shells in which the electrons revolve.

The protons are positively charged particles  and neutrons are neutral and hence the nucleus is positively charged. The electrons which revolve around the nucleus are negatively charged  particles and hence the atom as a whole is neutral and stable due to presence of oppositely charged particles.

Atoms of the same element are similar as they have number of sub- atomic particles which on combination do not alter the chemical properties of the substances.

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The expression for the isothermal compressibility for a van der Waals gas is given by:
κ = −1/Vm (∂Vm/∂P)T
where Vm is the molar volume of the gas.

The isothermal compressibility is a measure of how much the volume of a substance changes when the pressure is changed while the temperature is kept constant. For a van der Waals gas, the volume depends on both the pressure and the temperature, and the expression for the isothermal compressibility is derived from the equation of state for the van der Waals gas.

The equation of state for a van der Waals gas is:

(P + a/Vm2)(Vm − b) = RT

where P is the pressure, T is the temperature, R is the gas constant, a and b are constants that depend on the properties of the gas, and Vm is the molar volume.

To obtain the expression for the isothermal compressibility, we start by differentiating the equation of state with respect to pressure at constant temperature:

(∂/∂P)(P + a/Vm2)(Vm − b) = (∂/∂P)(RT)

(1 + 2a/Vm3)(Vm − b) − (P + a/Vm2)(∂Vm/∂P) = 0

Solving for (∂Vm/∂P) gives:

(∂Vm/∂P) = (Vm2 − bVm − a)/(Vm2P + aP − 2aVm2)

Substituting this expression into the definition of the isothermal compressibility gives:

κ = −1/Vm [(Vm2P + aP − 2aVm2)/(Vm2 − bVm − a)]

Simplifying this expression using the equation of state gives:

κ = −1/Vm [(RTVm2)/(Vm3 − (b + RT/P)Vm2 + aV2m − abP/V)]

Finally, rearranging this expression gives the correct answer:

κ = 1/Vm [(RT(Vm − b)3 + 2aV3m)/(Vm3 − (b + RT/P)Vm2 + aV2m − abP/V)]

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The gas sample is Cl₂. Answer A.

The ideal gas equation formula PV = nRT

Calculating the number of moles of the gas sample.

PV = nRT

1.04 × 1.365 = n × 0.0821 × 368

1.4196 = n × 30.21

n = 1.4196 ÷ 30.21

n = 0.04699 mol

The formula for mass and number of moles m = n × Mr

Calculating the molar gas from the sample

Mr = m ÷ n
Mr = 3.33 ÷ 0.04699

Mr = 70.9 g/mol

From the info given, gas Cl₂ has the same molar mass as the sample.

So, the gas sample is Cl₂, chlorine gas.

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Answer:

True

Explanation:

This is true because no chemical bonding or change was involved only mechanical mixing.

5 electrons

Boron atomic number 5 has five electrons in its ground state.

Commonly Boron will lose 3 electrons leaving 2 electrons in its most common ionic form.

Explanation:

The atomic number gives the number of protons. Protons which have a positive charge are balanced by an equal number of electrons in a neutral atom.

Boron number 5 has five protons and therefore as a neutral atom also has five electrons.

Boron has an electron configuration of

1s22s22p1

The most stable electron configuration for Boron is

1s2

+ 3 charges. By losing three electrons Boron can achieve the stable electron structure of Helium

Brainliest? :D

Chemicals like bacterial toxins that poison cells are commonly described as being toxic or poisonous. These substances have the ability to disrupt normal cellular functions and processes, leading to harmful effects on the cells and organisms they come into contact with.

Toxins can have various mechanisms of action. Some toxins interfere with essential biochemical pathways, disrupt cellular membranes, or inhibit vital enzymes, while others may directly damage DNA or disrupt cellular signaling. Regardless of their specific mode of action, toxins are designed to have a detrimental impact on cellular function and can cause a wide range of adverse effects, from mild symptoms to severe illness or even death.

The toxicity of a substance is often determined by its concentration, exposure duration, and the specific vulnerability of the target cells or organisms. Toxins produced by bacteria can be classified into exotoxins, which are secreted by bacteria and released into the surrounding environment, or endotoxins, which are part of the bacterial cell wall and are released upon cell death or lysis.

Chemicals like bacterial toxins are referred to as toxic or poisonous due to their ability to disrupt cellular function and cause harm to cells and organisms.

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You retain balance when the weight and the reaction forces are balanced.

Your question is incomplete but I think you want to know how a person can retain balance.

We know that we can only be keep balance when the forces that are acting on the person is balanced. The implication of it is that there are no unbalanced forces that are acting on the person.

The two forces that act on you when you stand are the weight and the reaction force. If these two forces are balanced then you can be able to retain your balance.

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Answer:

Explanation:

To solve this problem, we can use the ideal gas law:

PV = nRT

where P is the pressure, V is the volume, n is the number of moles, R is the gas constant, and T is the temperature.

At STP (standard temperature and pressure), the temperature is 0°C or 273.15 K, and the pressure is 1 atm or 101.325 kPa.

We can use the ideal gas law to find the number of moles of chlorine gas in the sample:

n = PV/RT

where P is the pressure, V is the volume, R is the gas constant, and T is the temperature in Kelvin.

First, we need to convert the given temperature of 25.2°C to Kelvin:

T = 25.2°C + 273.15 = 298.35 K

Now we can calculate the number of moles of chlorine gas in the sample:

n = (100.8 kPa)(353.2 mL)/(8.314 J/K/mol)(298.35 K)

n = 0.0158 mol

Next, we can use the number of moles and the ideal gas law to find the volume at STP:

V = nRT/P

V = (0.0158 mol)(8.314 J/K/mol)(273.15 K)/(101.325 kPa)

V = 0.364 L or 364 mL

Therefore, the volume of the chlorine gas at STP would be 364 mL.

Answer:

Grignard reagents are formed by the reaction of magnesium metal with alkyl or alkenyl halides. They're extremely good nucleophiles, reacting with electrophiles such as carbonyl compounds

Explanation:

hope this helps!

The expression to be rearranged K = [CO][Cl₂] [COCI₂]  are x = 0.327 or x = 339.

The expression to be rearranged K = [CO][Cl₂] [COCI₂] is:

(0.156 - x) (0.156 - x) (0.263 + x) = 5.00 × 10⁻²

We will expand and simplify the expression:

(0.156 - x) (0.156 - x) (0.263 + x) = 5.00 × 10⁻²(0.156)² + (0.156)(x) - (x)(0.156) - (x)² (0.263 + x)

= 5.00 × 10⁻²(0.156)² - (0.263)(0.156)(x) - (0.156)(x) + (0.263)(0.156)(x) + x²(0.263 + x) - 5.00 × 10⁻² = 0

After simplifying:

-0.0132302 x² - 0.001002 x + 0.0014256 = 0

This is in the form ax² + bx + c = 0 where a = -0.0132302, b = -0.001002 and c = 0.0014256

Using the quadratic formula, we have:

\(\[x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}\]\)

Substituting values, we get:

\(\[x = \frac{-(-0.001002) \pm \sqrt{(-0.001002)^2-4(-0.0132302)(0.0014256)}}{2(-0.0132302)}\]\)

Solving, we get:x = 0.327 or 3.39 × 10²

Therefore, the solutions are x = 0.327 or x = 339.

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Answer:

Explanation: Of course the negative charge of the electron cloud is balanced by the positive charge of the atomic nucleus for neutral molecules. ... If we were doing this again today, we would designate the electronic charge as positive (and of course the nuclear charge would thus be NEGATIVE!)

Explanation:

Removing NO(g) from the equilibrium of the endothermic reversible reaction will shift the equilibrium to the left, resulting in an increase in the production of NO(g) and H₂O(g) while consuming NH₃(g) and O₂(g).

For the endothermic reversible reaction at equilibrium, removing NO(g) will affect it as follows:

Reaction: 4NO(g) + 6H₂O(g) ⇌ 4NH₃(g) + 5O₂(g)

Since this is an endothermic reaction, it means that the reaction absorbs heat from its surroundings when it proceeds in the forward direction (left to right). At equilibrium, the rates of the forward and reverse reactions are equal.

When you remove NO(g) from the system, you are essentially decreasing the concentration of NO(g) in the reaction mixture. According to Le Chatelier's principle, the system will counteract this change by shifting the position of equilibrium to restore the balance.

In this case, the equilibrium will shift to the left to replenish the NO(g) that was removed. This means the reaction will proceed more in the reverse direction (right to left), producing more NO(g) and H₂O(g) while consuming NH₃(g) and O₂(g).

In summary, removing NO(g) from the endothermic reversible reaction at equilibrium will cause the reaction to shift to the left, producing more NO(g) and H₂O(g) while consuming NH₃(g) and O₂(g).

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Answer:

Ions have a charge, whereas radical are neutral

Also, ions in nature tend to be compensated by ions with opposite charges, whereas radicals are very reactive and thus short lived.

Explanation:

have a good

thank me later

carryonlearing

✨ jufaith ✨

Answer:

neutral

Explanation:

you can get answer from web as well

Enthalpy of formation is not a colligative property. Colligative properties are physical properties of a solution that depend on the concentration of solute particles in the solution, but not on their chemical identity.

Examples of colligative properties include freezing point depression, boiling point elevation, and vapor pressure lowering.

Enthalpy of formation, on the other hand, is the energy change associated with the formation of a substance from its constituent elements in their standard states. It is a thermodynamic quantity and is not dependent on the concentration of solute particles in a solution. Hence, the enthalpy of formation is not a colligative property.

Freezing point depression and boiling point elevation are two of the most important colligative properties. Freezing point depression occurs when the freezing point of a solvent decreases in the presence of a solute. Boiling point elevation occurs when the boiling point of a solvent increases in the presence of a solute.

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For even mass numbers and even atomic numbers, the neutral atom is a boson. For odd mass numbers and odd atomic numbers, the neutral atom is a fermion.

A.) Boson is a particle with an integer spin value. A fermion is a particle with half-integer spin value.

B.) The neutron's discovery was crucial to our current understanding of the atomic nucleus. A nucleus that consisted only of protons and electrons would be difficult to explain and would most likely be unstable. Electrons cannot exist in the nucleus because their kinetic energy is much greater than the strong nuclear force that binds the nucleus.

C.) The annihilation of a proton-antiproton pair into π0π0 pairs is a strong interaction. The strong force between the proton-antiproton pair causes their annihilation, resulting in the creation of π0π0 pairs.

D.) To determine whether the spherical harmonic Y11 is an eigenfunction of parity, we can first evaluate the function when x is inverted to -x.

When θ is replaced with π - θ and ϕ is replaced with ϕ + π, the function changes as follows:

Y1'1(θ,ϕ)=-Y11(π-θ,π+ϕ)

=-8π/3 sin(π-θ) e^i(π+ϕ)

=8π/3sinθeiϕ

Therefore, since Y11'=-Y11, the eigenvalue of the parity transformation is P=-1.

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Answer:

Earth Science?

Explanation:

its not marine science or life so its physical or earth

The advantage to performing the reaction in methyl ethyl ketone - a solvent with a high boiling point is to carry the reaction in the forward direction by refluxing the set.

Boiling point is defined as the bulk phenomenon. It is the temperature at which the pressure of atmosphere is equal to the pressure of the vapour or vapour pressure.

Since, high boiling point solvent are used during the procedure to reflux the set which help in carrying out the reaction in the forward direction. If we had used low boiling point solvent instead of high all of the solvent evaporated and refluxing of the mixture of reaction to get product for maximum production could not have been possible.

Thus, we concluded that the advantage to performing the reaction in methyl ethyl ketone - a solvent with a high boiling point is to carry the reaction in the forward direction by refluxing the set.

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Answer:

A

Explanation:

a. There are 3.62 moles of air in the room.

b.  3.67 moles of air leave the room when the temperature rises by 5 K.

Given:

Pressure (P) = 1 atm

Volume (V) = 6 m × 5 m × 3 m

= 90 m³

Temperature (T) = 300 K

Use the ideal gas law equation, which states:

PV = nRT

Where:

P = pressure

V = volume

n = number of moles

R = ideal gas constant

T = temperature

Rearranging the ideal gas law equation to solve for the number of moles (n):

n = PV / RT

Substituting the given values:

n = (1 atm × 90 m³) / (0.0821 L × atm / (mol × K) × 300 K)

n = (1 × 90) / (0.0821 × 300)

n = 3.62 moles

b) The pressure remains constant, use the formula:

n1 / T1 = n2 / T2

Where:

n1 = initial number of moles

T1 = initial temperature

n2 = final number of moles (to be calculated)

T2 = final temperature (T1 + 5 K)

n2 = (n1T2) / T1

Substituting the values:

n2 = (3.62 moles × (300 K + 5 K)) / 300 K

n2 = 3.67 moles

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Answer:

Group 2 (IIa)

Explanation:

alkaline-earth metal are present on Group 2 (IIa) of the periodic table. The elements are beryllium (Be), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), and radium (Ra).

The answer to this question can be determined using the Ideal Gas Law, which states that PV = nRT.  the maximum volume of the airbag in the simulation contains 16.6 moles of gas.

The Ideal Gas Law, also known as the Combined Gas Law, is an equation of state that describes the behavior of an ideal gas. It states that the pressure, volume, and temperature of an ideal gas are directly proportional, with the product of the pressure and volume remaining constant in a given mass of the ideal gas. In other words, when any one of these three properties is changed, the other two properties will change in an inverse manner, keeping the product constant. The equation of the ideal gas law is PV = nRT, where n is the number of moles of the ideal gas, P is its pressure, V is its volume, and T is its temperature.

Using the formula

PV= nRT

where P is pressure,

V is volume,

n is the number of moles,

R is the ideal gas constant, and

T is temperature.

Given the maximum volume of the airbag (66.2 L) and the temperature of the environment (20°C),

we can calculate the number of moles of gas contained in the airbag.

n = (P × 66.2 L) / (R ×20°C)

Using the atmospheric pressure at sea level (101,325 Pa), the calculation can be further simplified to:

n = (101,325 Pa ×66.2 L) / (8.314 J/(Kmol) × 293.15 K)

n = 16.6 mol

Therefore, the maximum volume of the airbag in the simulation contains 16.6 moles of gas.

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The rate of diffusion mainly depends upon several factors like, pressure, and molecular weight. Both nitrogen gas and carbon monoxide are almost identical because of their diatomic molecules.

The molecular weight and atomic structure are almost identical in nitrogen gas and carbon monoxide at the same temperature. They also behave similarly properties at that particular temperature.

Due to their diatomic molecular structure, the rate of dispersal of gas is proportionate to the square root of its molecular mass.  Nitrogen has two nitrogen atoms in the valence shell and carbon monoxide consists of one carbon atom and one oxygen atom.

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Answer:

true false true false true fake

Answer:

38. False

39. True

40. True

41.  True

42. False

43. False

44. True

45. True

Explanation:

Note these are just my guesses they might not all be correct but I will do my best.

Hope this helps you at all! Feel free to correct me if I got any of them wrong :)