the speed of light in a vacuum is 2.997×108 m/s. given that the index of refraction in benzene is 1.501, what is the speed of light benzene in benzene?

Answer:

Mole Ratio Fraction

Explanation:

That's the answer.......

Answer:

Explanation:

Mole Ratio Fraction

A water molecule (H2O) is composed of two hydrogen atoms and one oxygen atom that are covalently bonded to each other.

In a covalent bond, atoms share electrons in order to achieve a more stable configuration.

In the case of water, each hydrogen atom shares one of its electrons with the oxygen atom, forming two covalent bonds. Meanwhile, the oxygen atom shares two of its electrons with the hydrogen atoms, forming two additional covalent bonds. In total, a water molecule has four shared pairs of electrons, with two pairs shared between the oxygen and each hydrogen atom.

These covalent bonds give water its unique properties, including its ability to form hydrogen bonds with other water molecules, which contribute to the cohesion, surface tension, and high boiling point of liquid water.

For such more questions on Water molecule

https://brainly.com/question/21426318

#SPJ4

Answer:

DNA

Explanation:

The eukaryotic cell participates in the formation of complex organisms and contains a nucleus, cytoplasmic organelles, and a cytoskeleton.

The answer should be DNA based on the wording of the question. Hopefully this helped a little bit.

The statement the water in the cup will have the same amount of heat (thermal energy) as the water in the container is true ,therefore option C is correct.

Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat is the flow of thermal energy.

The SI unit of thermal energy is the joule (J). It is the energy contained within the system, excluding the kinetic energy of motion of the system as a whole and the potential energy of the system.

The statement the water in the cup will have the same amount of heat (thermal energy) as the water in the container is true ,hence, option C is correct.

Learn more about thermal energy ,here:

https://brainly.com/question/11278589

#SPJ1

The density of silver at room temperature is 10.49 g/cm3, and the density of silver at its melting point is 9.3 g/cm3 when solid silver melts, its particles 'move farther apart'

From the given data density of silver at room temperature is 10.49 g/cm3, and the density of silver at its melting point is 9.3 g/cm3 then solid melts, liquid state is obtained and intermolecular distance in liquid is more than the intermolecular distance in solid due to this, the strength of intermolecular forces of attraction decreases when silver solid melt then its particles move farther apart and that's why the solid silver which is at room temperature density is more because it is in room temperature but we melt then particles are move faster and move apart from other and density become less.

Know more about solid and liquid

https://brainly.com/question/28609949

#SPJ1

One of the ions has a positive charge (called a cation) and the other has a negative charge (termed anion). Salt is an ionic compound, consisting of a crystal, lattice structure of the two ions Na+ and Cl-.

The mass of an object is a measure of the total amount of matter present in it. Mass is usually measured in grams (g) or kilograms (kg).The mass of the object with a volume of 49 cm³ and density of 63 g/cm³ is 3087 g or 3.087 kg.

The given data is;

volume = 49 cm³,
density = 63 g/cm³.

Now, we have to calculate the mass of the object.

Density = mass / volume
Mass = density × volume

Substitute the given values in the above equation.

Mass = 63 × 49

Mass = 3087 g or 3.087 kg

The mass of the object is 3087 g or 3.087 kg.

The mass of the object with a volume of 49 cm³ and density of 63 g/cm³ is 3087 g or 3.087 kg. It means the mass of the object is 3087 times its volume.

The mass of the object with a volume of 49 cm³ and density of 63 g/cm³ is 3087 g or 3.087 kg.

to know more about Density visit:

brainly.com/question/29775886

#SPJ11

Hydrogen is not a significant component of Earth's atmosphere.

The Earth's atmosphere is primarily composed of nitrogen (N₂) at about 78% and oxygen (O₂) at about 21%. Carbon dioxide (CO₂) is present in trace amounts, currently around 0.04% but increasing due to human activities. Hydrogen (H₂) is a relatively minor component, with concentrations in the parts per million range.

It is produced primarily through natural processes such as volcanic activity and the breakdown of organic matter. However, if all life were removed from Earth, including plants and other organisms that produce or consume gases, the concentrations of gases in the atmosphere would change. While hydrogen would still be present in small amounts, the lack of biological processes would primarily affect oxygen and carbon dioxide levels.

To learn more about Earth's atmosphere, here

https://brainly.com/question/29379794

#SPJ4

When determining the weak link that limits overall precision in methods that employ multiple measurements, the measurements of dimensions contribute more to the CV of the calculated density than the measurements of mass.

In this question, we are asked to determine what contributes the most to the coefficient of variation (CV) of the calculated density - the measurements of mass or of dimensions. The CV is a measure of the relative variability of a set of data, and a higher CV indicates greater variability.

To answer this question, we need to compare the standard deviations of the measurements of mass and dimensions. The standard deviation tells us how spread out the measurements are around the mean. In this case, the standard deviation for measurements of length (dimension) is 0.01 cm, while the standard deviation for measurements of mass is 0.002 g.

The CV is calculated by dividing the standard deviation by the mean and multiplying by 100. So, to determine what contributes the most to the CV of the calculated density, we need to compare the ratios of the standard deviation to the mean for mass and dimensions.

Let's consider an example: Suppose the mean mass of the lightest object is 10 g, and the mean length is 5 cm. The ratio of the standard deviation to the mean for mass is 0.002 g / 10 g = 0.0002, while the ratio for dimensions is 0.01 cm / 5 cm = 0.002.

From this example, we can see that the ratio for dimensions is higher than the ratio for mass. Therefore, the measurements of dimensions contribute more to the CV of the calculated density than the measurements of mass.

Learn more about density here:-

https://brainly.com/question/29775886

#SPJ11

The question is about identifying the 'weak link' in density measurements by comparing the coefficient of variation (CV) of mass and dimension measurements. Given the standard deviations, it is likely that dimensions are the 'weak link'. By identifying this, one can improve the precision of measurements.

This question is about determining the primary cause of variation, or the 'weak link', in density measurements made. This is done by analyzing the relative contribution of different measurements to the coefficient of variation (CV) of the density. In this case, the student has to compare the contribution to the CV from measurements of mass and dimensions.

Given the standard deviations for the measurements of dimensions and mass with the lab equipment, the student will need to calculate the CV of both sets of measurements. It is expected that the CV for the dimensions (Standard deviation/mean) will be larger given the higher standard deviation compared to mass. Therefore, dimensions may be the 'weak link' that is causing a higher overall CV for your density measurements.

In conclusion, by comparing the CVs for the measurements of mass and dimensions, you can identify which contributes most to the variation in your calculated density and thus improve your measurement precision.

https://brainly.com/question/36989405

#SPJ12

Answer:

Explanation:

as we know density is g/ml or d=(g/ml) we will plug in the values in their respective positions and get the answer.

So the density is 0.812(round it according to the sig figs it asks for).

The mass of the products element  of a nuclear fusion reaction is more than  the mass of the original elements.

H2+H2= He

Nuclear fusion is the process by which light elements interact to create heavier elements (up to iron). Significant amounts of energy are released when interacting nuclei from low atomic number elements, like hydrogen (atomic number 1) or its isotopes deuterium and tritium, are involved. Thermonuclear weapons, also known as hydrogen bombs, were created in the decade immediately following World War II and were the first to use the vast energy potential of nuclear fusion. See nuclear weapon for a thorough history of this development. Meanwhile, there has been a significant push to harness nuclear fusion for the generation of power due to the potential peaceful applications of the process and the virtually infinite supply of fusion fuel on Earth.

To know more about  nuclear fusion visit :https://brainly.com/question/16556922

#SPJ4

Answer:

40.088 ≈ 40

Explanation:

We'll begin by calculating the number of mole in 13.62g of carbon. This is illustrated below:

Mass of carbon = 13.62g

Atomic weight of carbon = 12

Mole of carbon =..?

Mole = mass /atomic weight

Mole of carbon = 13.62/12

Mole of carbon = 1.135 mole

Next, we shall determine the number of mole of calcium needed to react with 1.135 mole of carbon.

This is illustrated below:

2C + Ca —> CaC2.

From the balanced equation above,

2 moles of C reacted with 1 mole of Ca.

Therefore, 1.135 mole of C will react with = (1.135 x 1)/2 = 0.5675 mole of Ca.

Therefore, 0.5675 mole of calcium, Ca is needed.

Now, we can determine the atomic weight of calcium as follow:

Mass of calcium = 22.75g

Mole of calcium = 0.5675 mole

Atomic weight of calcium =..?

Mole = mass /atomic weight

0.5675 = 22.75 / atomic weight

Cross multiply

0.5675 x atomic weight = 22.75

Divide both side by 0.5675

Atomic weight = 22.75 / 0.5675

Atomic weight = 40.088

Therefore, the atomic weight of calcium is 40.088

Answer:

True

Explanation:

A mole is defined as a certain amount of a unit. Such as atoms or molecules.

The formation of a primary alcohol from a ketone involves the use of a ketone and NaBH4 followed by an acid workup.

The question is unclear but clearly relates to the formation of a primary alcohol. The first step in this reaction is the attack of the NaBH4 on the carbonyl carbon of butanone.

The reaction sequence is completed by an acid work up in which an acidic hydrogen is abstracted by the nucleophile to yield a primary alcohol.

Learn more about primary alcohol:https://brainly.com/question/7207863

Answer:

The electronic configuration that are incorrectly written is 1s²2s³2p⁶, 4s²3d¹⁰4p⁷, 3s¹ and 2s²2p⁴.

Explanation:

The electronic configuration of the elements corresponds to how all the electrons of an element are arranged in energy levels and sub-levels.

There are 7 energy levels —from 1 to 7— whose sublevels are described as s, p, d and f.

All electronic configurations begin with the term "1s" —corresponding to the sublevel s of level 1— so 4s²3d¹⁰4p⁷, 3s¹ and 2s²2p⁴ are incorrectly written. In addition, 4s²3d¹⁰4p⁷ is written incorrectly because is impossible to jump from the sublevel "s" to the sublevel "d" —which is found from level 3 and up— without passing through the sublevel "p".

In the case of 1s²2s³2p⁶, the wrong thing is that the sublevel "s" can only hold two electrons, not three.

The other options are correctly written.

Answer:

See Explanation

Explanation:

By definition, 1 mole is the mass of substance (or, formula mass in grams) containing 1 Avogadro's Number (N₀ = 6.02 x 10²³) of particles. That is ...

1 mole of hydrogen atoms (H) = 1.00794 grams

1 mole of molecular hydrogen (H₂) =  2.01588 grams

1 mole of any substance = 1 formula weight in grams

1 mole = 1 Avogadro's Number (N₀) = 1 formula weight in grams

In the concept of 'gas laws' 1 mole of any (all) gas at STP conditions ( => 0°C & 1 atmosphere pressure) occupies 22.4 Liters & is known as the 'molar volume' of a gas at STP. If the temperature &/or pressure change the volume will not be 22.4 Liters.

For reactions whose coefficients are balanced to the lowest whole number values (i.e., no fractional coefficients) the equation is known as the 'standard reaction' and conditions  are assumed to be STP and the coefficients of gas phase components indicate molar volumes. Example ...

Given   N₂(g) + 3H₂(g) => 2NH₃(g)  is assumed to be at 0°C; 1 Atm pressure.

Molecular Nitrogen = 1 molar volume = 22.4 Liters of N₂(g)

Molecular Hydrogen = 3 molar volumes = 3 x  22.4 Liters of H₂(g) = 67.2 Liters of H₂(g)

Molecular Ammonia = 2 molar volumes = 2 x 22.4 Liters of NH₃(g) = 44.8 Liters of NH₃

The table based on the information regarding the moles will be:

Reactant Moles Product Moles

N2H4 2        N2           3

N2O4 1       H2O            4

If the number of moles of a reactant is provided, you can fill in the required amount of the other reactant by multiplying the number of moles of the first reactant by the molar ratio of the second reactant to the first reactant. For example, if you are given that 2 moles of N2H4 are reacted, you can find the required amount of N2O4 by multiplying 2 by the molar ratio of N2O4 to N2H4, which is 1:2. This gives you 1 mole of N2O4.

Similarly, if the number of moles of a product is provided, you can fill in the required amount of each reactant by multiplying the number of moles of the product by the molar ratio of the reactant to the product.

Learn more about moles on

https://brainly.com/question/15356425

#SPJ1

the NaOH concentration is 0.07799 M.

we need to find out the NaOH concentration. For this, we'll use the formula for molarity of a solution. Molarity is defined as moles of solute per litre of solution. The formula for Molarity is:

Molarity (M) = Mass of solute in grams / Molar mass of solute × Volume of solution in liters.

So, we can rearrange the formula as:

M = (m/V) × (1/MW)

where M is the molarity of solution, m is the mass of solute, V is the volume of solution and MW is the molecular weight of the solute. Using this formula, we can calculate the NaOH concentration as follows:

Given, mass of KHP = 0.6986 g

Volume of NaOH = 43.92 mL = 0.04392 L

To find: NaOH concentration

Using the given mass of KHP, we can find the number of moles of KHP as:

moles of KHP = mass / molar mass of KHP= 0.6986 / 204.22= 0.003421 mol

Now, using the balanced chemical equation between NaOH and KHP, we can say that: 1 mole of NaOH reacts with 1 mole of KHP.

This means that the number of moles of NaOH used in the reaction = 0.003421 mol

So, using the formula for molarity, we can say that:

Molarity of NaOH = moles of NaOH / volume of NaOH= 0.003421 / 0.04392= 0.07799 M

Therefore, the NaOH concentration is 0.07799 M.

learn more about Molarity here

https://brainly.com/question/30404105

#SPJ11

Answer:

keep it from being washed away by water

Explanation:

ok so I believe:

a. increase in atomic radii going down a group and decrease going across a period.

b. increase in IE1 going across a period and up a group. the highest IE1 elements are like He, Ne, F and first ionization energy decreases moving further away from those elements moving south west on the periodic table.

c. electron affinity increases moving across a period left to right.

d. ionic radii increases going down a group and decreases going across a period left to right

e. electronegativity increases across a period but decreases down a group. (opposite for electropositivity)

what is meant by the d-block elements? are you referring to the spdf location?

Correct answer is Each orbit has a specific energy level.

Therefore, Correct statement is Each orbit has a specific energy level.

Learn more about Bohr's model here:

https://brainly.in/question/1438012

#SPJ9

The complete question is mentioned below:

Which statement about Niels Bohr’s atomic model is true?

a) Higher orbits have lower energies.

b) Each orbit has a specific energy level. c) Electrons can exist in any energy level. d) Orbits close to the nucleus have no energy.

Answer:

Hydrogen Chloride is 74.64 grams.

Explanation:

Using the given information, we can find the amount of grams of hydrogen chloride that take place in the reaction.

Due to the Law of Conservation of Mass, the mass of the system must remain constant. To find the value of x, make the equation below.

\(24.30 + x=2.04 + 96.90\)

The left side represent the reactant side of the chemical reaction and the right side represents the product side.

\(2.04 + 96.90= 98.94\)

\(24.30+x=98.94\)

\(24.30 - 24.30 + x= 98.94 - 24.30\)

\(x=74.64\)

Reaction

8SO₂ + 16H₂S → 3S₈ + 16H₂O

find limiting reactant

mol SO₂ = 64 : 64 g/mol =  1

mol H₂S = 61.2 : 34 g/mol = 1.8

ratio mol:coefficient

SO₂= 1 : 8= 0.125

H₂S=1.8 : 16 = 0.113

H₂S as a limiting reactant (smaller ratio)

mol S₈ will be based on limiting reactant (H₂S)

mol S₈ = 3/16 x 1.8 = 0.3375

mass S₈ = 0.3375 x 256 = 86.4 g

The chemical formulas cross method worksheet are listed below in the answer.

A chemical formula lists the constituent components of a compound together with how many atoms of each are present in the complex's smallest unit, whether it be a molecule or a formula unit. We can name simple compounds based on their chemical formulas by using the names of the elements and a few simple criteria.

Cations are positive-charged ion particles. Atoms or molecules that are ionic are charged. If an electron or more are lost from a balanced atom, it will change into a positively charged cation. When a balanced atom gains one or more electrons, an anion, a negatively charged atom, forms.

1. Na₂so₄

4.  Kcl,  , , K₃PO₄, KNO₃, K₂SO4

5.  Mg₂Cl₂, Mg₃ (Po₄)₂, Mg₃ (No₂)₂, Mgso₄

6. AlCl₃, AlPo₄, Al (No₃)₃, Al₂(so₄)₃

7. HCl, H₃PO₄, HNO₃, H₂SO₄

8. FeCl₂, Fe(PO₄)₂, Fe(NO₃)₂, FeSo₄

The chemical formulas cross cross method worksheet are listed above.

To learn more about chemical formula visit:

brainly.com/question/29031056

#SPJ1

Answer:

1.73913043g/mL

Explanation:

Density is how much a substance would weigh per 1 mL of the substance. So it is measured by dividing weight (g) by volume (mL).

4.80g/2.76mL = 1.73913043g/mL

The statement "a glycosidic bond is a bond between the anomeric carbon of a carbohydrate and any other biological molecule" is true.A glycosidic bond is a type of covalent bond that forms between the anomeric carbon of a carbohydrate molecule and another molecule, such as another carbohydrate, a protein, or a lipid.

The anomeric carbon is the carbon atom in a carbohydrate molecule that was involved in the formation of the carbonyl group (C=O) during the cyclization of the sugar. The anomeric carbon can exist in two different configurations, alpha or beta, depending on the orientation of the hydroxyl group (-OH) attached to it. When the anomeric carbon reacts with another molecule, such as an alcohol or amine group of another carbohydrate, a glycosidic bond is formed.

Glycosidic bonds are important in the formation of complex carbohydrates, such as starch, glycogen, and cellulose, as well as in the synthesis of glycoproteins and glycolipids. The type of glycosidic bond formed between two carbohydrates can have significant implications for their biological function and the properties of the resulting molecule.

For more such questions on glycosidic bond

https://brainly.com/question/6834008

#SPJ11

The mass of gum you need to chew to chew one mole of sugar is approximately 5.68 × 10-22 grams.

To calculate the mass of gum that you need to chew to chew one mole of sugar, you need to use the following steps:

Step 1: Find the molar mass of the sugar

The molar mass of sugar is 342.3 g/mol.

Step 2: Convert molar mass to gramsTo convert the molar mass to grams, you need to divide it by Avogadro's number (6.022 × 1023), which gives you 5.68 × 10-22 grams of sugar.

Step 3: Find the mass of gum needed since it is not provided how much sugar is present in a single piece of gum, we can assume that it is negligible.

Therefore, the mass of gum needed to chew one mole of sugar is approximately 5.68 × 10-22 grams.

Hence, the mass of gum you need to chew to chew one mole of sugar is approximately 5.68 × 10-22 grams.

To know more about mole refer to:

https://brainly.com/question/29367909

#SPJ11

Answer:B

Explanation:Because when the object heats up the particles move faster and it will turn into a liquid or gas but if it is being cooled then the particles will slow down and either make a liquid or solid.

The cellular organelle that is most affected by CO poisoning is mitochondria (option B).

Mitochondria is a cellular organelle found in eukaryotic cells and responsible for the production of energy in form of ATP.

Carbon monoxide (CO) is a common environmental pollutant released when fossil fuels are burned. The major target of this pollutant is the mitochondria.

Carbon monoxide (CO) binds to cytochrome oxidase of the electron transport chain in the mitochondria, thereby, blocking oxidative phosphorylation and ATP production. As ATP declines, there is no energy to drive the breathing muscles.

Learn more about mitochondria at: https://brainly.com/question/14740753

#SPJ4