if the temperature is kept at the value found in part (a) and the gas is compressed, what is the volume when the pressure again becomes 5.00 atm ?

If you have 100 grams of rubidium bromide (rbbr) then no of moles you have is 0.61 mol.

The International Unit System uses the mole (symbol: mol) as the unit of material quantity. How so many basic entities of a particular substance are present in an item or sample is determined by the quantity of that material. One molecule or atom possesses the same weight in grams as one mole of the substance does in units of atomic mass.

as we know that

165.3718 g Rubidium Bromide = 1 mol

according to the question-

100 g of Rubidium Bromide = (1/165.3718 ) x 100

= 0.61 mol

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0.750 moles of nitrogen will occupy 1.500 I under certain conditions in which 0.300 moles of nitrogen gas occupies 0.600.

The amount of moles of a gas is proportional to the volume it occupies under certain conditions. Therefore, the number of moles of a gas that occupies 1.500 liters under the same conditions can be determined by using the following equation:

Moles = (Volume of original sample × Moles of the original sample) / Volume of new sample

Moles = (0.600 liters × 0.300 moles) / 1.500 liters

Moles = 0.750 moles

Therefore the correct answer to this question is option number 3 which is   0.750 moles.

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The empirical formula for a compound is N2O5, that can be calculated by considering the masses of elements.

The simplest whole number ratio of atoms present in a compound. The mass composition for both the elements is given which is as follows:

N = 26g and O = 74g

Now we will divide the above masses with respect to the Molecular mass of each element;

N = 26/14 = 1.857 moles  and for O = 74/16 = 4.625 moles

Now as we have molar ratio of each species;

We will divide the mole ratio by smallest number and round off to nearest decimal;

1.857/4.625 ~ 2/5                (say divide by 0.9 approx.)

Which will give a composition of N2O5.

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The partial pressure of helium gas is 162.24 ATM, and it is utilized in the gas mixture Heliox to assist patients with breathing.

A helium and oxygen gas mixture called Heliox is given to people who have trouble breathing. Using it for scuba diving is another usage. The overall pressure requirement is 4.2 atm. Dalton's Law of Partial Pressures states that since heliox is a mixture of only two gases—helium and oxygen—the total pressure in the tank must be equal to the sum of the partial pressures of the two gases. 20% oxygen and 80% helium make up heliox. A breathing gas called heliox is made up of helium (He) and oxygen (O2). It is used as a medicinal treatment for those who have respiratory problems.

Total pressure in Heloix =[tex]po= 208 atom[/tex]

Mole fraction of oxygen =[tex]x0=0.22[/tex]

Mole fraction of helium =[tex]xhc=1- xo=1-0.22=0.78[/tex]

According Dalton's law of partial pressure.

partial pressure of oxygen gas in Heloix:[tex]p0 * x0=208 atom *0.22=45.76 atom[/tex]

Partial pressure of helium gas in Heloix:

[tex]phc=po &xhc=208 atom *0.78=162.24 atm[/tex]

Partial pressure of helium gas is 162.24 atm.

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The many O atoms are in the formula unit GaO(NO2)2 as the total dose required are 63.5 kg.

You get lb and mg/k*g need to know mg

The total dose required for a 140 lb patient if the amount required is 28 mg/kg bodyweight is 63.5kg.

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after the limestone's placement. demonstrates the sequence of the rock layers as well as parts of the layers' fractured due to an earthquake. According to the evidence in the graphic, there was an earthquake.

Explain what an earthquake is:

An earthquake is a quick movement of geological materials beneath the earth's surface that causes the ground to shake violently or weakly. The tectonic plate border is where the earthquakes start.

How is earthquake caused?

Although the tectonic plates are constantly moving slowly, friction causes them to become impermeable at their borders. An earthquake occurs when the stress on the edge exceeds the friction, releasing energy in waves that flow through the earth's crust and produce the shaking we experience.

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With an atomic number of 82, the chemical element lead has 82 protons and 82 electrons in its atomic structure. Lead has the chemical symbol Pb.

Lead's neutron number and mass number Lead's usual isotopes have masses between 204 and 208. Lead's (pb) atomic number is 82. The quantity of protons in an element's nucleus is indicated by the element's atomic number. Only lead displays no Thomson effect in a metal. In other words, neither heat is emitted nor absorbed when an electrical current is transmitted through a sample of lead. Lead has a molecular weight of 207. Natural bluish-gray metal called lead may be found in trace levels in the earth's crust. Every area of our is filled with lead environment.

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Keeping in mind that, in accordance with the half reaction, gold can be plated from an Au3+-containing solution. Au3+(aq) + 3 e- Au (s) = (M(Au)It)/nF = (197g/mol5.5A25min60sec/min)/(396500C/m.

How to Determine the Required Current Find out how much a material is created or absorbed by moles. For the half-reaction that is occurring, write the equation. Determine the necessary amount of electron moles. Turn coulombs of charge into moles of electrons. Calculate the needed current.

We can easily calculate current by dividing the total charge by the measurement period. I = Q t, where I stands for current, Q for charge, and t for time, is a formula for calculating current.

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The empirical formula of the compound is C3H4.

Solution:

For the simplest ratio device both moles by lowest mole.

C = 0.00864/0.00864  = 1 x 3 = 3

H = 0.0115/0.00864 = 1.33 x3 = 4

The empirical formula is = C3H4

An empirical formula is the chemical formula of a compound that indicates the proportion of elements present in the compound but does not indicate the actual number or arrangement of atoms. This will be the smallest integer ratio of the elements in the compound.

The molecular formula is the simplest formula for a compound and is defined as the ratio of the smallest possible integer exponents of the elements in the formula. Also known as the simplest formula. Pharmaceutical companies use empirical studies to test certain drugs in controlled or random groups to study effects and causes.

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5s²5p⁵ has high electron affinity.

5s² 5p⁵ are halogens and halogens have high electron affinity. They are called group seven elements. They are present in the p-block of the periodic table. The energy that is released when an electron is added to a neutral atom to create an anion is called electron affinity. When an electron is added to a neutral gaseous atom to create a negative ion, the atom's potential energy changes. This shift is known as electron affinity. Therefore, the electron addition process is more favorable the greater negative the electron affinity. Because not all elements can produce stable negative ions, the electron affinity can be negative or even positive in some cases.

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Answers

Xenon tetroxide is present in the atmosphere

Answer:

mole is a 6.022×10^-23 molecules while molar mass is the mass in grams of one mole of a substance

Explanation:

one just needs to know the atomic number of an element.to know it's molar mass.Molar mass equals atomic mass of an element

Whose electrical properties are dictated by the impurity atoms in the semiconductor is extrinsic semiconductor.

Any member of the family of crystalline solids known as a semiconductor falls into the range of conductors and insulators in terms of electrical conductivity. Diodes, transistors, and integrated circuits are just a few of the electrical devices that use semiconductors in their production. Due to their portability, dependability, energy efficiency, and affordability, these gadgets are widely used. They have been utilized as discrete components in solid-state lasers, optical sensors, and power devices. They are capable of tolerating a wide range of current and voltage, and more importantly, they are well suited for integration into intricate but easily fabricated microelectronic circuits. They are and will continue to be the primary components of the vast majority of electronic systems, supporting applications in communications, signal processing, computation, and control.

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Sodium chloride will be soluble in water because it is polar molecule.

A polar molecule was one who has a slight positive charge on one end and a slight negative charge on the other. A polar molecule would be a diatomic compound, such as HF, that contains a polar covalent link.

We refer to something as being polar when it differs at either end. Some molecules also contain positive as well as negative ends; these are known as polar molecules. If not, we refer to them as non-polar. Polar objects can both attract and repel one another.

Pyramidal and V-shaped molecules were typically considered to be polar. Linear molecules, on the other hand, are thought to be non-polar through nature. Because the oxygen and hydrogen atoms have different electronegativities, water would be considered to be a polar molecule.

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Answer:          

Phosphorus, sulphur and chlorine have 5, 6 and 7 valence electrons respectively. They accept 3, 2 and 1 electrons respectively. It is easier to accept 1 electron than 2 or 2 electrons than 3. Hence, phosphorus is least reactive followed by sulphur and chlorine which is most reactive.

Explanation:

Answer:

Metallic bonds occur among metal atoms.

Answer:

The movement of tectonic plates in the area, causes more volcanoes.

They call it the Pacific Ring of Fire

Answer:

The Pacific Ocean is more likely to experience volcanic activity because the Ring of Fire, an area in which several volcanos and earthquakes occur, is located within it.

Repeat unit molecular weights for the poly(ethylene terephthalate, polyvinyl chloride, polycarbonate, and polydimethylsiloxane are 62.494 g/mol, 192.164 g/mol, and 74.158 g/mol, respectively.

The mass of a molecule is its molecular weight. Gram/mole is a fundamental unit. It is the result of adding the atomic weights and atom counts of all the molecules' constituent elements.

Basic formulas for calculating molecular weight include:

Some of the most well-known elements' atomic masses are as follows:

Atomic Weight (g/mole) = Element

C = 12.01 for carbon

H - Hydrogen = 1.008

O = 16.00 for oxygen.

CI = 35.45 for chlorine.

1.

Type the chemical formula for poly vinyl chloride in the following format: H Cl C C H

Polymer's monomer unit is

Calculate the poly vinyl chloride repeat unit molecular weight.

MW = 2 (C's atomic weight) + 3 (H's atomic weight) + 4 (Cl's atomic weight) = 2 (12.01) + 3 (1.008) + 35.45

=62.494 g/mol

For poly vinyl chloride, molecular weight is calculated as the sum of the atomic weight and the number of atoms. Monomer is the name for the polymer's repeating unit

2. Compose the polyethylene terephthalate chemical equation.

The polymer's monomer unit will 

Determine the polyethylene terephthalate repeat unit molecular weight.

MW = 10 (C's atomic weight) + 8 (H's atomic weight) + 4 (Atomic weight of O

=10(12.01)+8(1.008)+4(16.00)

=192.164 g/mole

For polyethylene terephthalate, the atomic weight and number of atoms are multiplied to get the molecular weight.

Write the polycarbonate chemical equation

Determine the polycarbonate repeat unit molecular weight.

MW = 16 (C's atomic weight) + 14 (H's atomic weight) + 3 (Atomic weight of O)

=16(12.01)+14(1.008)+3(16)

=254.272 g/mole

For polycarbonate, molecular weight is calculated as the sum of the atomic weight and the number of atoms.

4. Compose the polydimethylsiloxane chemical equation.

The polymer's monomer unit is

Calculate the polydimethylsiloxane repeat unit molecular weight

MW = 2 (C's atomic weight) + 6 (H's atomic weight) + (Si's atomic weight) + (Atomic weight of O)

=2(12.01)+6(1.008)+28.09+16

=74.158 g/mol

For polydimethylsiloxane, molecular weight is calculated as the sum of the atomic weight and the number of atoms.

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Imagine the reaction in model 1 starts with zero molecules of a and 100 molecules of b is the concentration of b decreases .

The model 1 starts with zero molecules of a and 100 molecules of b. if we start with the zero molecules of a the  concentration of b will decreases as it will turn to the reactant. The chemical reaction occurs when the two or substance reactant to form a new product. so the reaction is given as :

A  ⇄ B

so, if in the reaction it start with the molecules of a and the b is 100 molecules than the  concentration of b decreases as the b turns in to the reactant.

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The rate of reaction is the rate at which the reactants disappear or the rate at which the products appear. Option D.

The rate of a chemical reaction can be defined in a variety of ways. Some of them are:

Before the beginning of a reaction, only reactants are present in reaction vessels. Once the reaction starts, the reactants start reacting to form products. Thus, the rate of reaction is the rate at which the reactants are being converted into products.

This can be measured by either of or a combination of the rate of disappearance of the reactants or the rate of appearance of the products.

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Consequently, each C-H bond in methane can be understood as the overlap of a half-filled 1s orbital in four hydrogen atoms with the bigger lobe of one of the four half-filled sp3 hybrid orbitals to generate a four equivalent sigma () bond.

By combining one orbital with three p orbitals, methane molecules hybridize. One unpaired electron can be found in each orbital.

Four covalent connections between the carbon and hydrogen atoms make up the methane molecule. Due to the presence of bonds on the core atom's four sides, the arrangement of the molecule exhibits a fair amount of symmetry.

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KP is 111.11 for CaCl2 if 200. 0 g of CaCl2 are required to aturate 100. 0 mL of solution.

Kp is nothing but equilibrium constant. chemical reaction's constant is the value of its reaction coefficient at equilibrium state, a state attained by a dynamic chemical equilibrium after a sufficient amount of time has passed where its structure has no quantifiable tendency to change further. At equilibrium, the equilibrium constant can tell us if the reaction has a greater density of product lines as well as reactants. Equilibrium constants include stabilisation constants, forming constants, conditional constants, association constants, and depersonalisation constants.

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Two zinc wires are used to create a concentration cell, and two solutions—one containing 0.350 m ZnCl2 solution and the other 1.40 m Zn(NO3)2 solution—are used to create the cell with potential 0f 0.0178V

Given that Zn(NO3)2 solution = 1.40m and ZnCl2 solution = 0.350m

According to the reading given above, the response was:

Zn ==> Zn2+(0.350 M) oxidation on the left side of Zn | Zn2+(0.350 M) || Zn2+(1.40 M)

Zn2+(1.40M) + 2e- translates into a reduction of Zn(s) on the right side.

Zn2+(1.40M) ==> Zn2+ then (0.350M)

The formula is as follows:

Ecell = Eocell - RT ln Q, where Q = 0.350 / 1.40 = 0.25 and the temperature is assumed to be 25oC (298K),

gives us Ecell = Eocell - 0.0592 / 2 log Q and

Ecell = 0 - 0.0296 log 0.25

Ecell = -0.0296 * -0.602 = 0.0178V

This is the instantaneous cell potential, Ecell = +0.0178 V (notice the potential is positive, indicating the reaction is spontaneous). The cell potential will eventually reach zero.

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The difference between theoretical yield and actual yield is that theoretical yield is what is calculated while the actual yield is what you actually get in a chemical reaction.

Actual yield is the quantity of a product that is obtained from a chemical reaction while the calculated or theoretical yield is the amount of product that could be obtained from a reaction if all of the reactant converts to product.

This depicts that theoretical yield is based on the limiting reactant. The relationship between actual yield and theoretical yield is used to calculate percent yield:

Percent yield = (actual yield ÷ theoretical yield) x 100%

The difference between actual yield and theoretical yield is illustrated above.

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Chemists are interested in researching thermochemistry because heat is produced when a hot and cold substance come into contact until thermal equilibrium is attained.

In general, heat (thermal energy) is transferred from the hotter to the colder item when they come into contact.When two objects are in touch, the warmer object's faster-moving particles collide with the colder object's slower-moving particles. Heat will transfer from a hot object to a cold one when they are in close proximity. Heat transfer, thermal transfer, or heat transfer are all terms used to describe the area of physics that analyzes these phenomena.

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A covalent bond would form because the electron would be shared, so both hydrogen's have a full and stable shell.

The exchange of one or more pairs of electrons between two atoms forms a covalent connection. The two atomic nuclei are concurrently drawing these electrons to them. When the difference between the electronegativities of two atoms is too tiny for an electron transfer to take place to create ions, a covalent bond is formed.

Covalent bonds were first described in 1939. The word "covalent bond" is derived from the prefix co-, which means jointly, associated in action, partnered to a lesser extent, etc. The hydrogen atoms share the two electrons through covalent bonding since the prefix co- implies jointly, associated in action, etc.

Given element is hydrogen.  

Although the element hydrogen is placed along with the alkali metals in group 1, the hydrogen atom act as a non-metal.

Hence to complete its valence shell, it shares 1 electron with another hydrogen atom and forms a covalent bond.

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A copper electrode is immersed in the solution that is 1 M in the ammonia and 1.00 M  in tetrammine copper(ii).  the concentration of the Cu²⁺ in the solution is 3.3 × 10¹¹ M.

given that :

concentration of ammonia = 1 M

concentration of the tetramine copper = 1 M

cell potential = 0.057 V

temperature = 298 K

the reaction

at cathode :

Cu²⁺  +  2e⁻  ---->  Cu      E° cathode = 0.337 V

at anode :

2H⁺  +  2e⁻  --->  H₂          E° anode = 0.00 V

electrode potential =  E° cathode -    E° anode

                                 = 0.337 - 0.00

                                 = 0.0337 V

Nernst equation :

E cell =  E° cell - (0.0591 / n ) log Q

0.055 V = 0.337 V - ( o.0591 / 2 ) log Q

log Q = 0.282 / 0.029

Q = 2.95 × 10⁻¹⁰

concentration of Cu²⁺ =  1 / Q

                                     = 1 / 2.95 × 10⁻¹⁰

                                     = 3.3 × 10¹¹ M

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You will see a few white flowers on a plant that normally has purple flowers due to mutations.

Flower color is determined by pigments in the flower petals. The pigments responsible for the purple flower color are anthocyanins. A mutation in the genetic code responsible for producing anthocyanins could cause some of the petals to be white.

If this mutation is inheritable, then it could be passed down to future generations, resulting in some white flowers appearing on a plant that normally has purple flowers.

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If the liquid's behavior in a glass capillary with a convex meniscus is determined by strong interactions with the capillary glass, then the alternative is false. Thus, option D is the best choice.

Capillaries made of glass come in a variety of outer diameters, from 0.1 mm to 2.0 mm. They are made for x-ray data collecting and can mount, hold, and store crystals of tiny molecules and biological macromolecular specimens. Additionally, crystal density measurements and crystal development investigations can be conducted with the use of capillaries.

Healthcare establishments like hospitals, clinics, doctors' offices, blood banks, and labs all employ glass capillary tubes to collect blood samples for analysis.

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The right question is:

Which choice is not true of a liquid in a glass capillary with a convex meniscus?