at what temperature in k will 0.950 moles of oxygen gas occupy 7.50 l and exert 2.60 atm of pressure

Answer:

for the second one i'd go with reflection

Explanation:

The empirical formula of chlorofluorocarbon is C₁₅H₁₈ClF₁₂₈

A possible graphic formula for Compound T is:

Cl

|

F--C--C--F

| |

H H

The empirical formula of the compound is determined as follows:

Assume that we have 100 g of Compound T, so the mass of each element in grams can be directly read from the percentages given.

Mass of C = 7 g

Mass of H = 0.66 g

Mass of Cl = 46.4 g / 35.45 g/mol = 1.31 g

Mass of F = 100 g - (7 g + 0.66 g + 1.31 g) = 90.03 g

Next, we can calculate the number of moles of each element:

moles of C = 7 g / 12.01 g/mol = 0.583 mol

moles of H = 0.66 g / 1.008 g/mol = 0.655 mol

moles of Cl = 1.31 g / 35.45 g/mol = 0.037 mol

moles of F = 90.03 g / 18.99 g/mol = 4.740 mol

To obtain the empirical formula, we need to divide the number of moles of each element by the smallest number of moles. The smallest number of moles is 0.037, which corresponds to chlorine:

moles of C = 0.583 mol / 0.037 mol = 15.7

moles of H = 0.655 mol / 0.037 mol = 17.7

moles of Cl = 0.037 mol / 0.037 mol = 1

moles of F = 4.740 mol / 0.037 mol = 128.1

Hence, the empirical formula of the compound is C15H18ClF128

To find the molecular formula, we need to determine the molecular mass of the empirical formula and divide the given molecular mass by the empirical mass to obtain the molecular formula.

The molecular mass of the empirical formula is:

15(12.01) + 18(1.008) + 35.45 + 128(18.99) = 2886.53 g/mol

The given compound has two carbon atoms per molecule, so its molecular mass is twice the molecular mass of the empirical formula:

2(2886.53 g/mol) = 5773.06 g/mol

Therefore, the molecular formula of Compound T is C30H36Cl2F256

Learn more about empirical formula at: https://brainly.com/question/13058832

#SPJ1

Answer:

Brainliest A and I want brainliest please

Explanation:

That pull is gravity at work. Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass. The size of the pull depends on the masses of the objects. You exert a gravitational force on the people around you, but the Gravity or gravitational forces are forces of attraction. We're not talking about finding someone really cute and adorable. It's like the Earth pulling on you and keeping you on the ground. That pull is gravity at work.

Every object in the universe that has mass exerts a gravitational pull, or force, on every other mass. The size of the pull depends on the masses of the objects. You exert a gravitational force on the people around you, but that force isn't very strong, since people aren't very massive. When you look at really large masses, like the Earth and Moon, the gravitational pull becomes very impressive. The gravitational force between the Earth and the molecules of gas in the atmosphere is strong enough to hold the atmosphere close to our surface. Smaller planets, that have less mass, may not be able to hold an atmosphere.at force isn't very strong, since people aren't very massive.

Obviously, gravity is very important on Earth. The Sun's gravitational pull keeps our planet orbiting the Sun. The motion of the Moon is affected by the gravity of the Sun AND the Earth. The Moon's gravity pulls on the Earth and makes the tides rise and fall every day. As the Moon passes over the ocean, there is a swell in the sea level. As the Earth rotates, the Moon passes over new parts of the Earth, causing the swell to move also. The tides are independent of the phase of the moon. The moon has the same amount of pull whether there is a full or new moon. It would still be in the same basic place.

Answer:

D

Explanation:

Independent variables (IV): These are the factors or conditions that you manipulate in an experiment. Your hypothesis is that this variable causes a direct effect on the dependent variable. Dependent variables (DV): These are the factor that you observe or measure.

The hydrocarbon with the highest boiling point among the given options is C6H14 (hexane).

The boiling point of hydrocarbons generally increases with increasing molecular weight or the number of carbon atoms. In this case, hexane (C6H14) has the highest molecular weight among the options provided, which contributes to its higher boiling point compared to the other hydrocarbons.

Hexane consists of six carbon atoms, while the other options have fewer carbon atoms. As the number of carbon atoms increases, the intermolecular forces (such as London dispersion forces) between the molecules also increase, requiring more energy to break these forces and transition from a liquid to a gas phase.

Learn more about hydrocarbon here:

https://brainly.com/question/28482314

#SPJ11

Answer:

Homeostasis, as currently defined, is a self-regulating process by which biological systems maintain stability while adjusting to changing external conditions.

Explanation:

Answer:

Hydrogen + Helium

Explanation:

No reaction occurs

According to the research, the correct answer is that steam distillation the components of a mixture are separated by direct injection of steam while in fractional distillation vaporization and condensation occur successively.

It is a process that allows the separation of mixtures in the liquid phase into their individual components.

In this sense, fractional distillation requires a fractionating column and is used when the boiling points of the volatiles in the liquid mixture are below 80 °C.

On the other hand, steam distillation is used to purify or isolate the compounds whose boiling point is very high based on a steam separation.

Therefore, we can conclude that in steam distillation a current of water vapor is passed while in fractional distillation a vaporization and condensation of the volatile component is carried out.

Learn more about distillation here: https://brainly.com/question/29037176

#SPJ1

Since the ethanol has a density of 0.800 g/mL, the mass of the ethanol is 180 grams.

Given the following data:

Volume of ethanol = 225 mL

Density of lead ball = 0.800 g/mL.

To find the mass of the ethanol;

Density can be defined as mass all over the volume of an object.

Mathematically, the density of a substance is given by the formula;

Density = Mass/Volume

Making mass the subject of formula, we have;

Mass = Density x Volume

Substituting the given parameters into the formula, we have;

Mass of ethanol = 180 grams.

The H₂0 ion concentration of a solution is (1 x 10⁻⁴) mole per liter. To determine the pH of the solution, we can use the equation pH = -log[H+], where [H+] represents the hydrogen ion concentration. The correct answer is A) acidic and has a pH of 4.

In this case, the hydrogen ion concentration is (1 x 10⁻⁴) mole per liter. Taking the negative logarithm of this concentration, we have:

pH = -log((1 x 10⁻⁴)) = -(-4) = 4

Therefore, the solution is acidic and has a pH of 4.

The correct answer is A) acidic and has a pH of 4.

Learn more about concentration ,

https://brainly.com/question/10725862

#SPJ4

Answer: 89.7 L

Explanation:

89.6 volume, in liters, does 128 grams of O2 occupy at STP. Therefore, option A is correct.

A volume is simply the amount of space taken up by any three-dimensional solid. A cube, a cuboid, a cone, a cylinder, or a sphere are examples of solids. Volumes differ depending on the shape.

Every three-dimensional object requires some amount of space. The volume of this space is measured. Volume is defined as the space occupied by an object within the boundaries of three-dimensional space. It is also known as the object's capacity.

1 mole Oxygen has mass 32 grams

Mole of Oxygen in 128 g mass = 128 g / 32 g/mol

= 4.0 mol O2

At Standard temperature and pressure this has volume

= 4.0 mol × 22.4 L/mol

= 89.6 L

Thus, 89.6 volume, in liters, does 128 grams of O2 occupy at STP, option A is correct.

To learn more about the volume, follow the link;

https://brainly.com/question/1578538

#SPJ6

Answer:Some examples of the force of gravity include;

-The force that holds the gases in the sun.

-he force that causes a ball you throw in the air to come down again.

-The force that causes a glass you drop to fall to the floor.

-The force that keeps the Earth and all of the planets in line in the proper position in their orbits around the sun.

-The force that causes an apple to fall downward from an apple tree.

-he force that keeps you walking on Earth instead of floating away into space.

The statement is correct. Compounds that have the same molecular formula but possess different physical and chemical properties are indeed called isomers, and this phenomenon is known as isomerism.

Isomerism refers to the existence of two or more compounds that have the same molecular formula but differ in the arrangement or connectivity of atoms in their structures. Isomers can exhibit variations in properties such as boiling point, melting point, density, solubility, reactivity, and biological activity.

There are two main types of isomerism: structural isomerism and stereoisomerism.

Structural Isomerism: In structural isomerism, the isomers differ in the connectivity of atoms within the molecule. They have different structural arrangements or bonding patterns.

Examples of structural isomers include chain isomerism, functional group isomerism, position isomerism, and ring-chain isomerism. Structural isomers often exhibit distinct physical and chemical properties due to their different arrangements of atoms and functional groups.

Stereoisomerism: Stereoisomers have the same structural formula, but their spatial arrangement differs. This type of isomerism arises due to the presence of stereocenters or double bonds that restrict rotation. Stereoisomers can be further divided into two subcategories:

a. Geometric Isomerism (Cis-Trans Isomerism): Geometric isomers have different spatial arrangements around a double bond or a ring. The isomers can exist as cis-isomers (similar groups on the same side) or trans-isomers (similar groups on opposite sides) and exhibit different physical and chemical properties.

b. Optical Isomerism (Enantiomerism): Optical isomers, also known as enantiomers, are non-superimposable mirror images of each other. They have the same connectivity of atoms but differ in their three-dimensional arrangement. Enantiomers rotate plane-polarized light in opposite directions and exhibit different biological activities and interactions with chiral environments.

For more such question on Compounds visit:

https://brainly.com/question/29108029

#SPJ8

Note: The complete question is:

"compounds that have the same molecular formula but possess different physical and chemical properties are called isomers and this phenomenon is known as isomerism." check the given statement is correct or not?

Answer:

200J

Explanation:

This is because 500J - 300J = 200J

I hope this helps!!!

Answer:

1700 Joules. I Took the test.

Explanation:

Answer:

1

Explanation:

Formula of molarity is

\(M=\frac{n}{v}\)

M= molarity

n= no of moles

v= volume in liters (if mL then you have to convert it to L)

None of the above.

Since none of the given option is a chemical property, rather all of them are physical method of separation and physical methods do not require a chemical change.

Solubility- It is a physical property because it is easily discernible through observation and does not alter the substance's chemical makeup. For instance, salt is still salt when it dissolves in water.

Evaporation - The chemical composition of a liquid does not change when it evaporates. The only alteration is a phase shift brought on by pressure and temperature. Evaporation, or the phase transition from liquid to gas, is a physical change as a result.

Filtration - Filtration is a physical separation procedure that uses a filter medium with a complicated structure that only allows fluid to pass through it to separate solid particles and liquid from a combination.

Therefore, neither new nor broken chemical bonds are created or broken during the separation. During the separation, bonds are severed or strengthened.

To learn more about separation of mixture refer- https://brainly.com/question/2125632

#SPJ9

Answer:

5 moles of Fe(II) are required to react completely with the 5 moles of Sulphur

Explanation:

The balanced equation in this question is

Iron + Sulfur = Iron(II) Sulfide

Fe (II) + S --> Fe(II)S

Thus one mole of sulfur reacts with one mole of Fe(II)

Hence, 5 moles of Fe(II) are required to react completely with the 5 moles of Sulphur

The limiting reactant in this reaction is HCl. There are 0.050 moles of HCl in 3.71 g. Then, mass of MgCl₂ produced is 2.41 g.

A limiting reactant in a reaction is the reactant which is fewer in amount or consume early without complete reaction with other reactants. Hence, as soon as this reactant is consume, the reaction stops.

The given reaction can be written as follows:

Mg(OH)₂ + 2 HCl ⇒ 2 H₂O + MgCl₂

molar mass of  Mg(OH)₂ =  58 g/mol

no.of moles in 1.85 g = 1.85 /58 = 0.031

molar mass of HCl = 36.5 g/mol

no.of moles in 3.71 g = 3.71 / 36.5 = 0.050.

As per the balanced chemical equation of the reaction, one mole magnesium hydroxide reacts 2 moles of HCl. Hence, 0.031 moles need 0.062 moles of HCl. But we have only 0.05 moles. Hence, HCl is the limiting reactant.

2 moles of HCl produces 1 mole of magnesium chloride. Then, 0.05 moles produce 0.025 moles of magnesium chloride.

molar mass of MgCl₂ = 95 g/mol

then mass of 0.025 moles = 0.025 × 95 = 2.41 g.

Therefore, the mass of magnesium chloride formed is 2.41 g.

Find more on limiting reactants:

brainly.com/question/14225536

#SPJ1

The Chicxulub crate is an impact crater buried beneath Mexico's Yucatán Peninsula. Its core lies offshore near the Chicxulub settlement, after which it is called.

The Chicxulub Impact created a shock wave and air blast that extended over the oceans, along coasts, and deep into the continental interior. Winds in excess of 1000 kilometers per hour were possible near the impact site, however they diminished with distance. An asteroid impact 66.0 million years ago on what is now Mexico's Yucatán Peninsula wiped out 75% of life on Earth, including non-avian dinosaurs, marine reptiles like mosasaurs and plesiosaurs, and ammonites.

Learn more about Chicxulub

https://brainly.com/question/30668628

#SPJ1

Answer:

\(\boxed {\boxed {\sf 4 \ g/cm^3}}\)

Explanation:

We are asked to find the density of a brick. Density is a substance's mass per unit volume. The formula for calculating density is as follows.

\(\rho= \frac{m}{v}\)

The mass of the brick is 100 grams and the volume is 25 cubic centimeters.

Substitute the values into the formula.

\(\rho= \frac{ 100 \ g}{25 \ cm^3}\)

Divide.

\(\rho=4 \ g/cm^3\)

The density of the brick is 4 grams per cubic centimeter.

Answer:

the number of atoms stays the same as the atoms lose energy to the colder freezer, slow down, get closer together, shrinking the volume

Explanation:

When a liquid is cooled, the average energy of the molecules decreases. At some point, the amount of heat removed is great enough that the attractive forces between molecules draw the molecules close together, and the liquid freezes to a solid.

I hope it helps.

The components of the gunpowder could be separated by dissolution in water and carbon disulfide.

The gunpowder is a mixture that is used in guns and some other explosives. The gun powder is a mixture of substances. The substances that are found in gun powder are;  potassium nitrate, charcoal and sulfur.

Now, we could first add water to the system. The water would remove the potassium nitrate from the mixture then we can filter. After the filtration, carbon disulfide could be added to remove sulfur. The residue that is obtained now contains the carbon.

Learn more about gunpowder mixture:https://brainly.com/question/2289235

#SPJ1

A 150 mL solution of calcium hydroxide is titrated with 0.3 M HBr.  The concentration of the original calcium hydroxide solution if it takes 200 mL of HBr to reach the equivalence point is 0.2M. Therefore, option A is correct.

A solution's concentration is defined as the amount of solute present in a given amount of solution. It can be stated as follows: Mass divided by the mass percentage of a solution equals mass of solute/mass of solution 100.

The molarity measure is commonly used to accomplish this. The number of moles of solute (n) divided by the volume (V) of the solution in liters is defined as molarity (M). It is critical to remember that molarity is defined as moles of solute per liter of solution, not moles of solute per liter of solvent.

M1V1 = M2V2

0.3 × 150 = M2 × 200

M2 = 0.3 × 150 / 200

= 0.2 M

Thus, option A is correct.

To learn more about the concentration, follow the link;

https://brainly.com/question/10725862

#SPJ1

The volume of an object that has a mass of 0.255 kg and a density of 2.89 g/cm³ is approximately 88.24 cm³.

To find the volume of an object with a mass of 0.255 kg and a density of 2.89 g/cm³, you can follow these steps:

1. Convert the mass from kg to grams: 0.255 kg * 1000 g/kg = 255 g

2. Use the formula for density: Density = Mass/Volume

3. Rearrange the formula to find the volume: Volume = Mass/Density

4. Substitute the given values: Volume = 255 g / 2.89 g/cm³

Your answer: The volume of the object is approximately 88.24 cm³.

To know more about volume refer here:

https://brainly.com/question/30700697#

#SPJ11

Answer:

8 Valence Electrons

Explanation:

Answer:

Generate concept.

Explanation:

The process of designing includes many processes out of which the process of developing the idea for a new product is called Generate concept.

Product idea( concept) generation is a act that begins with a list of criteria set by the client regarding his necessities and preferences. Based on the criteria, concept generation aims to pinpoint a range of potential ideas and solutions that addresses those needs.

Answer:

The answer is B. A hydrogen atom forms a convalent bond.........

The Chemical Formula for Glucose is C₆H₁₂O₆.

Glucose(C₆H₁₂O₆). is an organic molecule that is generally a monosaccharide. Glucose is simply called sugar and is highly abundant in nature. It should be noted that monosaccharides are a subcategory of Carbohydrates.

Glucose is generally prepared by plants through the process of photosynthesis by taking up water and Carbon-di-oxide. The stored form of glucose is termed differently depending upon the organism it is stored. In the case of plants, the stored form of glucose is starch or amylopectin whereas in animals it is called glycogen.

It also makes up the wall of plants which is referred to as cellulose, a polysaccharide of glucose.

It is an important source of energy for almost all organisms that are present on the earth.

To know more about monosaccharides, click below:

https://brainly.com/question/27976384

#SPJ1

Answer:

C6H12O6 is the chemical formula of glucose