For the following reaction, how many moles of NaOH will be produced if you react 2.4 moles of Na2O?

Na2O + H20 → 2 NaOH

Option (c) is correct. CO2 gas have density at STP greater than that of Argon. This is determined by ideal gas law, PV = n RT.

According to the Ideal gas law, the pressure times the volume of a gas divided by the number of moles and temperature of the gas is always equal to a constant number. The numerical value of the constant depends on which units the pressure volume and temperature are in

  PV = n RT

at STP, P is constant and T is constant.

so, V = km / M

so, the density is greater with the molar mass. so, density of CO2 is greater than argon as it has the molar mass of 44.01 g/ mole and argon has 39.148 g/ mole. Density is defined as the mass per unit volume of a material substance.  Density is commonly expressed in units of grams per cubic centimeter.

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Answer:

10 must be added

Explanation:

Phosphate esters are prepared from phosphoric acid and alcohol.

Let's understand more about phosphate esters:

Phosphate esters are organic molecules that consist of a phosphate group, a carbon atom, and an oxygen atom. The reaction of alcohol and phosphoric acid produces phosphate esters.

The ester is formed when one oxygen of the phosphate group is bonded to the carbon atom of the alcohol, and the other two oxygen atoms are bonded to the phosphorus atom (PO32-).

Phosphoric acid and alcohol are used to make phosphate esters. They are widely used in biological and biochemical systems as energy sources, cell membrane constituents, and signaling molecules.

When alcohols react with phosphoric acid, phosphate esters are formed. The reaction between the alcohol and the phosphate ion occurs with the elimination of a water molecule. The phosphate ion binds to the alcohol's oxygen atom, creating a covalent bond. In organic chemistry, this is called an ester linkage.

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Answer:

gravitational potential energy

it is the potential energy a massive object in relation to another massive object due to gravity

elastic potential energy

it is the mechanical potential energy stored in configuration of a material or physical system as it subjected to elastic deformation by work performed on it

chemical potential energy

it is a form of potential energy related to the structural arrangement of atoms or molecules

nuclear potential energy

it is the energy found in the nuclei of atoms

kinetic energy

it is the energy possessed by a body in motion

thermal energy

it refers to the energy contained with a system that is responsible for its temperature

light energy

it is the energy that opposes our sense of vision

The enthalpy change of neutralization in kJ mol−1 is given as -57.15 kJ mol−1.

The specific heat capacity of water is 4.18 J g−1 K−1. What is neutralization? A neutralization reaction is a reaction between an acid and a base that forms salt and water as products. What is enthalpy change? The heat energy exchanged between a system and its surroundings during a chemical reaction is known as enthalpy change. Specific heat capacity is a measure of a substance's heat capacity or thermal conductivity. It is defined as the amount of heat energy required to raise one gram of a substance by one degree Celsius.

Enthalpy change of neutralization = - Heat released (kJ) / Number of moles of acid

Heat released (kJ) = Mass of water × specific heat capacity × temperature rise= 100 g × 4.18 J g−1 K−1 × 3.6

K= 1504.8 J= 1.5048 kJ

Therefore, Number of moles of acid = mass of acid / molar mass of acid= 1 g / 36.5 g mol−1= 0.0274 mol

Therefore, Enthalpy change of neutralization = -1.5048 kJ / 0.0274 mol= -57.15 kJ mol−1

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The pressure exerted by the water vapor molecules in the air is called the vapor pressure.

The Vapor pressure is the measure of the tendency of the material to change in to the gaseous state or the vapor state, and it will increases with the temperature. The temperature at which the vapor pressure of the surface of the liquid will becomes equal to the pressure that is exerted by the surroundings is called as the boiling point of the liquid.

The pressure exerted by the vapor in the thermodynamic equilibrium with the its condensed phases at the given temperature in the  closed system is termed as the vapor pressure.

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Answer:

Explanation:

Cu(s) + 2Ag+  ======> Cu^(2+) + Ag(s)

Notice what happened. Silver started out as an ion. It took on 2 electrons that were donated by the copper.

The silver then became a solid ppte. This equation wil take on much more meaning when you take up oxidation and reduction. Until then, you need only know who gave up elections and who took them up.

The frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

The frequency and wavelength of a wave are related by the following equation:

λf = c

Where λ is the wavelength of the wave in meters, f is the frequency in Hertz, and c is the speed of light in a vacuum.

in this case, λ = 676 nm = 6.76 x \(10^{-7\) m

c = 299,792,458 m/s

Making f the subject of the formula:

f = c/λ

  = 299,792,458/6.76 x \(10^{-7\)

  = 4.43 x \(10^{14\) hertz

In other words, the frequency of a red laser that has a wavelength of 676 nm would be 4.43 x \(10^{14\) hertz.

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Answer:

A. 6 moles

Explanation:

This question contains a chemical reaction between aluminum (Al) and Copper(II)Chloride to give copper and aluminum chloride. The unbalanced chemical equation is as follows:

Al (s) + 3CuCl2 (aq) → Cu (s) + 2AlCl3

To balance the equation, we use coefficients in front of Al and Cu to ensure the amount of both are uniform on both sides of the equation. The balanced equation is as follows;

2Al (s) + 3CuCl2 (aq) → 3Cu (s) + 2AlCl3

From the balanced equation, 2 moles of Al reacts with 3 moles of CuCl2

Hence, 4 moles of Al will react with (4 × 3) ÷ 2

= 12 ÷ 2

= 6 moles of CuCl2

Titan's atmosphere predominantly consists of nitrogen and methane, with traces of other gases, ruling out the possibility of life evolving there in the same manner that it is believed to have done on Earth.

On Earth, nitrogen and oxygen make up the majority of the atmosphere, with traces of other gases. Because they are required for respiration, nitrogen and oxygen are crucial for maintaining life as we know it. On the other hand, no known form of life uses methane, which is a highly reactive and combustible gas. Additionally, any form of life would have a very difficult time surviving on Titan due to its extremely low temperatures, which average around -180°C.

Methane, a greenhouse gas, traps heat from the sun and prevents it from escaping back into space, keeping Titan warmer than the other moons of Saturn. Because it absorbs and then emits infrared radiation, which is the main type of heat energy emitted by the sun, methane is a potent greenhouse gas.

Titan has a far stronger greenhouse effect than Saturn's other moons as a result, which keeps Titan's surface warm. Titan's surface would be significantly colder without the methane greenhouse effect, making it more like the other moons of Saturn.

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Correct question:

Titan is a moon of the planet Saturn Table shows the percentages of the gases in the atmosphere of Titan.  

Percentage of gas in atmosphere (%)

Nitrogen 98

Methane 1

Other gases 0.

Some scientists think that living organisms could have evolved on Titan. Explain why these organisms could not have evolved in the same way that life is thought to have evolved on Earth.

Saturn has other moons. The other moons of Saturn have no atmosphere. Titan is warmer than the other moons of Saturn because its atmosphere contains thegreenhouse gas methane. Explain how this greenhouse gas keeps Titan warmer than the other moons of Saturn.

Answer:

your question too long did not read all

Explanation:

Pascal and one atmosphere pressure are equivalent at 1atm=101325Pa.

Additionally, we are aware that 1 Pascal equals 105 dynes per cubic centimetre. These two values must be multiplied in order to translate the value of one atmosphere into the Z value of Pascal. As a result, 1 atm (atmospheric pressure) equals 1.01325105Nm2, or 101325.

(Pressure in atm) x (1.01325 x 105 Pa/1 atm) equals pressure in Pa.

Pressure in Pa = 1.0045 x 107 P

One atmosphere, or one atm, is about similar to the average atmospheric pressure at sea level on Earth.

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There are several methods of reducing exposure to ionizing radiation. One method is to limit the time spent near a radiation source. This means reducing the amount of time spent in the presence of ionizing radiation to minimize exposure.

Another method is to increase the distance from the radiation source. By increasing the distance between oneself and the radiation source, the amount of radiation exposure decreases.

Additionally, shielding oneself with protective barriers such as lead aprons or walls can also reduce exposure to ionizing radiation. Other methods include practicing good hygiene such as washing hands and clothes frequently to avoid contamination by radioactive materials.

Overall, taking steps to reduce exposure to ionizing radiation is crucial in maintaining good health and preventing potential long-term effects.

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A student measures the volume of a solution to be 0.01370 have 5 significant digits in this measurement.

The significant digits are the minimum number from zero to nine for reporting any measurement where the digits are uncertain.

The significant digits starting from zero are not significant digits, decimal is not a significant digit, and ending zero after the decimal are significant digits.

Therefore, the student measures the volume of a solution to be 0.01370 5 significant digits are in this measurement.

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Answer:

Option A: I > II > III.

Explanation:

The stability of radicals depends on the number of bonds and electrons they have. In general, radicals with more bonds and electrons are more stable than those with fewer bonds and electrons.

In this case, the correct order of stability of the radicals is option (a) I > II > III.

I. CH₂-C• is the most stable radical because it has the most number of bonds and electrons, it has 4 sigma bonds and 4 pi electrons.

II. CH₂• is less stable than I because it has 3 sigma bonds and 2 pi electrons.

III. CH• is the least stable of the three radicals because it has only 2 sigma bonds and 1 pi electron.

Option III >II>I, or III >1>II, is not correct because it doesn't match with the stability order of the given radicals.

Answer:

bldg licking no-good also

Answer:

Water splitting is the chemical reaction in which water is broken down into oxygen and hydrogen: 2 H2O → 2 H2 + O. Efficient and economical water splitting would be a technological breakthrough that could underpin a hydrogen economy, based on green hydrogen.

Answer:

list the statements so i can help

Explanation:

Answer :Nonliving and living things can be made up of combined elements

Explanation:

The percent error for each of these measurements a.5.4%  b.1.8%  c.0%

d.3.6% for copper is 896 g/ml.

It is the difference in between the experimental and the theoretical values for the experiment results and divided by theoretical value multiplied by  100.

The percent error, 5.5 - 5.2 × 100 = 5.4%  

                                5.5 - 5.1 × 100 = .1.8%

                                 5.5 - 5.5 × 100 =.0%

                                 5.5 -  5.7 × 100 =3.6%

Therefore,  percent error for each of these measurements a.5.4%  b.1.8%  c.0% d.3.6% for copper is 896 g/ml.

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The pH is the measure of hydrogen ion concentration in a solution. The hydrogen ion concentration at pH 1.25 is  \(\rm\bold{ 5\;\times 10^{-2}\;M}\).

The pH is the negative logarithmic value of the hydrogen ion concentration in the sample.

The pH can be expressed as:

\(\rm pH=-log[H^+]\)

The hydrogen ion concentration can be given as:

\(\rm [H^+]=10^{-pH}\)

The given pH is 1.25 The hydrogen ion concentration is given as:

\(\rm [H^+]=10^{-1.25}\\H^+=0.05\;M\\H^+=5\;\times\;10^-^2\;M\)

The hydrogen ion concentration in the solution is \(\rm 5\;\times\;10^{-2}\;M\).

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Answer: 5.62 x 10n M n=-2

(5.62) (-2)

Explanation:

Answer:

D. Carbon​.

Explanation:

Carbon can be mixed with Many things. for example, YOU are mostly made out of carbon. Other things include furniture, clothing, plastics, charcoal, pencil led, diamonds, and gas.

Answer:

b                                 xplanation:

The mass in grams of 2.73×1024 molecules of methanol is 154.20g.

given that:

no. of molecules = 2.73 × 10²⁴

molar mass of methanol (CH₄O) = 34.04 g/mol

moles of methanol = no. of molecules / Na

                                =  2.73 × 10²⁴ / 6.022× 10²³

                                = 4.53 mol

now, formula for the no. of mole is given as :

no. of moles = mass / molar mass

mass = no. of mole × molar mass

mass = 4.53 ×34.04

mass = 154.20 g

Thus, the mass in grams of  2.73 × 10²⁴ molecules of methanol is 154.20 g

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The singular most potentially dangerous aspect of distillation is the use of flammable materials in the presence of heat.

Distillation, or classical distillation, is the process of separating the components or substances from a liquid mixture by using selective boiling and condensation, usually inside an apparatus known as a still. Dry distillation is the heating of solid materials to produce gaseous products which may condense into liquids or solids; this may involve chemical changes such as destructive distillation or cracking.

Distillation may result in essentially complete separation (resulting in nearly pure components), or it may be a partial separation that increases the concentration of selected components; in either case, the process exploits differences in the relative volatility of the mixture's components.

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Mathematician and computer programmer "Dorothy Vaughan" worked for NASA during the Space Race.

The new Analysis and Computation Division (ACD), a racially and gender-integrated team on the cutting edge of electronic computing, welcomed Dorothy Vaughan and many of the former West Computers. In addition to helping with the Scout Launch Vehicle Program, Dorothy Vaughan developed into a fortuitous FORTRAN programmer.

The most effective bosses never lose sight of their goal. They produce results that are of the utmost importance while fostering excellent working relationships. They effectively lead across their organisations, not simply down to the subordinates for whom they are responsible.

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Answer:

.5696

Explanation:

The ideal gas equation is PV=nRT, P=pressure, V=volume, n=moles, R=gas constant (.0821), T=temperature. So all you have to do is convert C to K, plug in the numbers and divide both sides by volume and you get your pressure.

P*98.3=2*.0821*(68+273)

P*98.3=2*.0821*341

P*98.3=55.9922

P=55.9922/98.3

P=.5696

To calculate the volume of chlorine used, we need more information about the context or the specific chemical reaction.

However, if we assume a scenario where 1 mole of chlorine gas (Cl₂) is consumed, the volume of chlorine used would be 22.4 dm³. This value is based on the molar volume of a gas at standard temperature and pressure (STP), which is 22.4 dm³/mol.

The molar volume of a gas at STP is a constant value, which means that 1 mole of any ideal gas occupies 22.4 dm³. In the case of chlorine gas (Cl₂), it consists of two chlorine atoms (Cl) bonded together. Since the atomic mass of chlorine (Cl) is 35.5 g/mol, the molar mass of chlorine gas (Cl₂) would be 2 * 35.5 g/mol = 71 g/mol.

Knowing the molar mass, we can use the concept of the molar volume to calculate the volume of chlorine gas consumed. For every 1 mole of chlorine gas used, the volume would be 22.4 dm³. However, please note that this calculation assumes a hypothetical scenario with 1 mole of chlorine gas. In practical situations, the volume of chlorine used will depend on the stoichiometry of the reaction and the amounts of reactants involved.

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Answer:

D

Explanation:

You need both, independant and dependant variables for a hypothesis.

Explanation:

ascorbic acid is lemon

lemon contain ascorbic acid....

it is organic acid.....

Answer: a. 1.11 atm, 0.43 mol

Explanation: