(a) how many grams of water will be produced from the combustion of 3.36 g of ethane gas with 9.56 g of oxygen gas?

Yes, the substance becomes the part of filtrate. No, the molecule does not become part of the filtrate.

The most common example is making tea. While preparing tea, a filter or a sieve is used to separate tea leaves from the water. Through the sieve pores, only water will pass. The liquid which has obtained after filtration is called the filtrate; in this case, water is the filtrate.

The substances that are normally found in the filtrate  are plasma components (such as water, nutrients, dissolved gases, electrolytes, and metabolic wastes) excluding plasma proteins and blood cells.

Proteins are large molecules that cannot pass the wall of capillaries during  filtration, hence, this molecule is not normally part of the  filtrate.

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The volume of chlorine gas produced at STP by the current of 2.5 amperes flowing for a period of 1.8 hours through an aqueous solution of silver chloride is 1.504 L.

The moles of chorine gas that are liberated at STP by passing a given current through an electrolyte containing chloride ions is determined from the equation of the oxidation reaction that occurs when chlorine gas is liberated from chloride ions.

The equation of the oxidation reaction is given below:

2 Cl⁻ ---> Cl₂ (g) + 2 e

From the equation of reaction, two moles of electrons liberated 1 mole of chlorine gas.

The volume of 1 mole of chlorine gas = 22.4 L

Quantity of current in 2 moles of electrons = 2 * 96500 C

Quantity of current in 2 moles of electrons = 193000 C

Quantity of current in 2.5 amperes flowing for a period of 1.8 hours = 2.5 * 1.8 * 3600

Quantity of current in 2.5 amperes flowing for a period of 1.8 hours = 12960 C

The volume of chlorine gas produced = 12960 * 22.4/1930000

The volume of chlorine gas produced = 1.504 L

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Complete question:

What volume of chlorine gas measured at STP would be liberated by the current of 2.5 amperes flowing for a period of 1.8 hours through an aqueous solution of silver chloride?

The specific heat of given metal is 3.83 j/g.k

Specific heat, the amount of heat required to raise the temperature of 1 gram of a substance by 1 degree Celsius. Units of specific heat are usually calories or joules/grams . Celsius.

Considering:

Heat gain by water = Heat lost by metal

Qₐ = Qₓ

mₐ cₐ (T₂ - T₁) = mₓ cₓ (Tₙ - T₂)

Where, mₐ = 119 g (mass of water)

cₐ = 4.186 j (specific heat of water)

T₂ = 41.0°C (final temperature of water)

T₁ = 21.0°C (initial temperature of water)

mₓ =  200 g (mass of metal)

cₓ = specific heat of metal

Tₙ = 54°C (Initial temperature of metal)

Now, substitute the values in the equation mentioned above,

119 × 4.186 × (41.0 - 21.0) = 200 × cₓ × ( 54 - 41.0)

9962.68 = 2600 cₓ

cₓ = 3.83 j/g.k

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ph = 1.5E.8 and pressure = 44.64 kj/mol of carbon dioxide.

Pressure is defined as the force perpendicular to an object's surface divided by the area across which it is dispersed.

Overpressure is the pressure that exists in comparison to the atmospheric pressure. To express pressure, various units are employed. Manometer, differential, and absolute pressure measurements are the three methods available.

Absolute pressure is defined in terms of vacuum pressure. l. Water's pH level reveals how basic or acidic it is. 7 serves as a neutral value in the range of 0 to 14, with. A pH value more than 7 indicates basicness, and a pH value less than 7 indicates acidity. In actuality, the pH scale gauges the percentage of free hydrogen and

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A aggregate response is a response wherein  or greater materials integrate to shape a unmarried new substance. Combination reactions also can be referred to as synthesis reactions. The standard shape of a aggregate response is: A+B→AB.

One aggregate response is  factors combining to shape a compound. When  or greater reactants integrate with every different to shape a brand new product it's miles referred to as as aggregate response. Combination response is likewise referred to as synthesis response. For instance hydrogen receives mixed with chlorine to from hydro-chloride.

A aggregate response is a response wherein  reactants integrate to shape one product. Oxygen and the halogens are very reactive factors and are probable to go through aggregate reactions with different factors.

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Not enough data is given and i cant find a similar question.

A glow stick is an example of a device that directly converts chemical energy into light energy.

A) A glow stick generates luminance, or light energy, using chemical energy from the compounds contained within it. When the stick is broken or twisted, the chemicals inside it are released and, through a chemical reaction, chemical energy is transformed into light energy.

B) plants employ light energy during photosynthesis to create oxygen and energy in the form of sugar (glucose).

C) The wind serves as the energy source for a windmill, and when the rotor blades revolve, the wind energy is transformed into mechanical energy. Then, electrical energy is created from that mechanical energy. The light energy produced by these electrical currents is subsequently employed in lamps. As a result, the chemical energy is not changed directly.

D) Water provides mechanical energy to a hydroelectric dam. When the water reaches the turbine, the gravitational potential energy that it had because of its height is transformed into kinetic energy. Then electrical energy is created from this kinetic energy.

Therefore, Glow Stick is the sole example where chemical energy is transformed into light energy in this manner.

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Answer:

C.) 2,1,2

Explanation:

You have to balance the equation by getting the number of elements on the left and right side to equal. Before balancing there is one more oxygen on the left side than the right side. You have to change the coefficient in front of H2O to fix this, and that means adding a "2" in front of the H2 to get that to equal as well.

You end up with 2H₂+10₂→ 2H₂O

The 2s and 2p sublevels are very close in energy, as are the 3s and 3p sublevels. The s sublevel is located lower on the page than the p sublevel.

Chemical bonds within substances contain energy. Exothermic reactions are those that release heat as well as chemical energy during the course of a reaction. The quantum theory defines a sublevel as an energy level. Sublevels in chemistry describe electron-related energies. Sublevels in physics can also refer to nuclear energy levels. A single orbital that can accommodate up to two electrons makes up the s-sublevel. Spherical best describes it. Since it is smaller than the 2s, which is smaller than the 3s, and so on, the 1s is the particle closest to the nucleus. 3 identical orbitals that resemble  make up the p-sublevel.

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The partial pressure of each gas in the mixture is 291.04 mmHg and  393.22mmHg

Partial pressure is defined as if a container is filled with more than one gas and each gas exert pressure

Here given data is

Total pressure = 689 mm hg

Mass of oxygen = 1.58 grams

Mass of carbon dioxide = 5.92 grams

We have to find partial pressure of each gas in the mixture = ?

So number of mole of oxygen

Number of moles = mass/molar mass

Number of moles =  1.58 grams/15.999g/mol

Number of moles = 0.098 mol

Number of mole of carbon dioxide

Number of moles = mass/molar mass

Number of moles =  5.92 grams/44.01g/mol

Number of moles =  0.134 mol

Then partial pressure of oxygen

Total number of moles  0.098 mol + 0.134 mol = 0.232 mol

P(O₂) =  [moles of oxygen / total moles] × total pressure

P(O₂) = 0.098 mol/0.232 mol × 689 mm hg

P(O₂) =291.04 mmHg

Partial pressure of carbon dioxide

P(O₂) = [moles of oxygen / total moles] × total pressure

P(O₂) = 0.134 mol/0.232 mol×689 mm hg

P(O₂) = 393.22mmHg

Partial pressure of each gas in the mixture is 291.04 mmHg and  393.22mmHg

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The following statements are correct 2 only.

A diamagnetic material is strongly attracted to a magnetic field. A material that retains its magnetism after being removed from a magnetic field is said to be ferromagnetic. Most transition metals and all lanthanide metals are ferromagnetic. Paramagnetic compounds are attracted to magnetic fields, whereas diamagnetic compounds are repelled by magnetic fields.

Paramagnetic compounds have unpaired electrons whereas in diamagnetic compounds all electrons have paired spins. They stick to ferromagnetic materials such as iron and ferrous objects such as steel. This includes everything from the steel body of your car to your refrigerator door. It is also attracted to nickel, cobalt, and other rare earth elements.

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The acid h₂x gives two h ions a 1.70 g sample of h₂x reacts completely with 40.0 ml of 0.450 M NaOH solution, the molar mass of h₂x is 188.8 g/M.

Volume = 40ml = 0.04 L

mass of NaOH = 0.450 M

moles of NaOH = mass × volume

                          = 0.450 × 0.04

Therefore, moles of NaOH is = 0.018

The no. of moles required in the reaction:

H₂X(aq) + 2NaOH(aq) ⎯→ Na₂X(aq) + 2H₂O(l)

Now, moles of NaOH is [tex]\frac{0.018}{2}[/tex] which is equal to 0.009

We know,

molar mass of H₂x = mass of H₂x  / moles of NaOH

                               = 1.70 / 0.009

                               = 188.88 g/M

The molar mass of H₂x  is 188.8 g/M  

Molar mass of  is defined as the mass of a substance in the gram of one mole of compound.

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A heat shield is essentially a thermal barrier intended to keep things from overheating. The automotive industry to isolate the engine block to stop heat damage to the bodywork and internal parts.

A heat shield is essentially a thermal barrier intended to keep things from overheating. They are frequently employed in the automotive industry to separate the engine to stop heat damage to the bodywork and internal parts.

If the heat becomes too high, plastic engine parts may melt or deform, and belts may also become damaged. You should schedule a visit with your mechanic right away if you start to smell burning emanating from your car or discover that the engine hood is too hot to touch.

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5.18 grams of methane will occupy same volume as 0.0325 moles of propane.

The ideal gas equation says,

PV = nRT

Where,

P is pressure, V is volume, n is moles, R is gas constant, T is temperature.

Moles of propane is 0.0325 moles.

volume of propane at 1 atm and 298 K is,

V = nRT/P

V = 0.0325 x 0.082 x 298/1

V = 7.92 L

Volume of propane is 7.92 L.

we know, moles = mass/molar mass.

Molar mass of Methane is 16g/mol.

Moles of methane = mass/16

Volume of methane,

V = nRT/P

7.92 = mass x 0.082 x 298/16

Mass = 5.18grams.

So, 5.18 grams of methane will have same volume as that of 0.0325 moles of propane.

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this is the answer to ur question hope is helpful

Answer:

2× Ar(O) + Ar(H) ×2 =58,3197 g/mol

A 40.0 ml sample of 0.25 m KOH is added to 60.0 ml of 0.15 m Ba(OH)₂.  the molar concentration of OH⁻ ion in the resulting solution is 0.28 M.

Given that :

volume of KOH = 40 mL = 0.04 L

Molarity of KOH = 0.25 M

volume of  Ba(OH)₂ = 60 mL = 0.06 L

molarity of  Ba(OH)₂ = 0.15 M

moles of OH⁻ in KOH = 0.04 × 0.25 = 0.01

moles of OH⁻ in Ba(OH)₂ = 2 (0.06 × 0.15) = 0.018

total no. of moles = 0.01 + 0.018 = 0.028 mol

total volume = 0.04 + 0.06 = 0.1 L

molarity of OH⁻ ion = moles / volume

                                 = 0.028 / 0.1

                                 = 0.28 M

Thus, A 40.0 ml sample of 0.25 m KOH is added to 60.0 ml of 0.15 m Ba(OH)₂.  the molar concentration of OH⁻ ion in the resulting solution is 0.28 M.

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Answer:

the missing component is the option (a) electron

Explanation:

this is a nuclear decay of Th which resulted in the emission of alpha particles, equivalent to high speed electrons.

Electrons are shared in covalent bonds.

What is a covalent bond?
The exchange of one or more pairs of electrons between two atoms forms a covalent connection. The two atomic nuclei are drawing these electrons in unison. When there is insufficient space between two atoms' electronegativities for an electron transfer to take place and create ions, a covalent bond is formed. Bonding electrons are shared electrons that are present in the region between the two nuclei. The bound pair serves as the "glue" that binds the atoms in molecular structures.

The only covalently bound substance that is the simplest is a hydrogen molecule. Two hydrogen atoms with one electron in each's 1s orbital make up the compound. The covalent link between the two hydrogen atoms allows them to share their two electrons and give each of them a helium-like electron configuration.

Hence, electrons are shared in covalent bonds.

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Explanation:

The 18th-century chemist Antoine Lavoisier and his wife Marie-Anne put fruit into a glass container, and then they sealed it. After weighing the fruit and container, they left it in a warm place for a few days. The fruit decayed, and there was condensation inside the glass and gas in the container. Lavoisier and his wife weighed the decayed fruit and the container again. The weight was the same. What scientific principle did the Lavoisier's experiment support?

Answer:

About 68.495 L hydrogen gas

Explanation:

Answer:

Other groupings of the elements are into "families" based on the chemical nature of the elements. Some of these are the alkali metals, alkaline earth metals, transition metals, chalcogens, halogens, and inert/noble gases. There is also a semi-grouping of elements above atomic number 83 as these tend to be unstable and show natural radioactivity. Additionally, one could group the elements based on their physical states at room temperatures, such as solids, liquids, and gases.

In all both, chemical and physical properties are used to classify and group elements into useful associative collections based on these attributes. It simply depends on the purpose for the classification.

Salts get dissolved in water because it has partial positive and negative charges. So option (c) is correct.

The water molecules pull the Na and Cl ions apart while breaking the ionic bond which held them together. After the salt ions are pulled apart, they get surrounded by water molecules. The salt dissolves to form a homogeneous solution.

Salts are ionic and are expected to dissolve in water because water itself is polar. Therefore, ionic salts are expected to dissolve in polar solvents.

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The the the molarity of na in the saline solution of nacl in the saline solution was 0.077 M.

Molar concentration is a measure of the concentration of a chemical species, especially of a solute in a solution, in terms of the amount of substance according to the unit quantity of the solution. In chemistry, the most normally used unit for molarity is the variety of moles according to liter, having the unit symbol mol/L or mol/dm³ in the SI unit.

Calculation:-

0.45% NaCl by mass

Density = 1.005 g/ml

0.45g NaCl in a total mass of 100 g

100 g in ml = 100/1.005 mL

                  = 99.50 ml

0.450 g NaCl in moles = 0.450 /M nacl

                                     = 0.450/58.44

                                     = 7.70 × 10⁻³ mol

Molarity of NaCl = 7.70 × 10⁻³ /99.50 × 100

                           = 0.077 M

Molarity (M) is the quantity of a substance in a sure volume of answer. Molarity is defined because the moles of a solute according to liters of a solution. Molarity is also called the molar awareness of a solution.

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In aqueous solutions, excess hydrogen ions bind to nearby water molecules, so it is generally considered more accurate to write h (aq) as H₃O (aq) then name of the H₃O ion is hydronium ion

The hydrogen ion in aqueous solution is no more than proton and a bare nucleus although it carries only a single unit of positive charge and this charge is concentrated into a volume of space that is only about a hundred million as large as volume occupied by smallest atom in case of water this will be the lone pair electron of the oxygen atom and the tiny proton will be buried within the lone pair and will form a shared electron bond with it and creating a hydronium ion means H₃O⁺ and here H₂O is the base and the product H₃O⁺ is the conjugate acid of water

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On adding more CO2 equilibrium shifts to left, adding more oxygen the equilibrium shift to right,  increasing a temperature will shift the equilibrium to left and adding the catalyst will not affect the equilibrium.

According to Heisenberg Uncertainty Principle, if the equilibrium of a system of reaction is disturbed by making any changes in the property the reaction will shift into that direction by itself that stabilizes the equilibrium again.

According to the reaction,

CH4O + O2 = H2O + CO2 + Heat

a. Adding more CO₂ will shift the reaction towards the left side or we can say that adding carbon dioxide into the system will shift the reaction towards the reactant side. Because the concentration of carbon dioxide on the product side has increased, the equilibrium is disturbed so in order to stabilize the equilibrium again the reaction will shift towards the reactant side.

b. Adding more oxygen means that we are adding more amount of reactants which disturbs the equilibrium of the reaction so to stabilize the equilibrium again the reaction will shift towards the product side.

c. Increasing the temperature of the equation means that we are giving heat to the system which means that the equation or the system will shift toward the product side because the reaction is exothermic in nature.

d. Adding a catalyst will not affect the equilibrium of the reaction it will only increase the rate of the reaction.

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The excess energy needed for the dissociation of the HI atom is 3.102 x 10⁻¹⁹ J

The wavelength of the photons used to dissociate the HI molecule is 248 nm.

The energy of the photon is given by,

E = hc/λ

Where,

H is Planck's constant,

c is the speed of light,

λ is the wavelength of the photon,

Putting values,

E = 6.62 x 10⁻³⁴ 3 x 10⁸/248 x 10⁻⁹

E = 8 x 10⁻¹⁹ J.

The bond energy required to dissociate the HI atom is 4.898 x 10⁻¹⁹ Joules.

The excess energy is given by,

E = 8 x 10⁻¹⁹ - 4.898 x 10⁻¹⁹

E = 3.102 x 10⁻¹⁹ J.

so, the excess energy needed is 3.102 x 10⁻¹⁹ J.

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The moles of BeS produced is 0.20231 mol.

molecular weight of Be = 9.01 g/mol

molecular weight of S = 32.065 g/mol

Thus, the molecular weight of beryllium sulfide is equal to:

molecular weight of BeS = 9.01 + 32.065 = 41.075 g/mol

The number of moles will be equal to: 8.31*(1/41.075) i.e., 0.20231 mol.

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The molar mass of the other gas is 153.79 g/mol

Step 1: The Data given,

It required 57 s for 1.0 L of the gas to effuse.

Under identical experimental conditions it required 26 s for 1.0 L of O2 gas to effuse.

Step 2: Calculate the molar mass

Graham's law of effusion says:

r1/r2 = √(M2/M1)

⇒ with r1 = effusion rate 1 = L/57s

⇒ with r2 = effusion rate 2 = L/26s

⇒ with M1 = molar mass of the gas = x g/mol

⇒ with M2 = molar mass of oxygen = 32 g/mol

We should be careful if we plug in the effusion rate. Because the fractions could flip if we don't give the effusion rates as numeral values.

(L/57s)/(L/26s) = 26/57 = √(32/M1)

26/57 =√(32/X)

(26/57) ² = 32/X

0.208064 =32/X

X = 32/0.208064

X = 153.79 g/mol

Hence, The molar mass of the other gas is 153.79 g/mol

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Yes, alcohol burns off when cooking. To make sure that alcohol cooks out completely, you need to cook the food longer. The possible situation for alcohol in recipes is fermentation.

Foods undergo fermentation process for saving and storing them for longer periods through preservation.

In general, alcohol is used during fermentation process to increase their storage time.

During fermentation, food is cooked for about 15 minutes. That is why most foods contain almost 40 percent of alcohol in them.

In order to remove alcohol, it is necessary to cook food longer. The longer you cook, the more alcohol cooks out.

However, to remove all traces of alcohol, make sure to cook food for about three hours.

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