A sealed container can hold
0.325 L of gas at 1.00 atm
and 293 K. How many moles of gas
can the container hold?

Answer:

If an insufficient amount of nitrogen were produced, the air bag would under inflate and not provide adequate protection. Clearly, the stoichiometry of the reaction is very important.

Answer:

I d K

Explanation:

Answer:

A) CH4 and C8H18

Explanation:

The answer is C since both charge and mass have to be balanced on both sides of the equation.

Answer:

B.) 3.85 x 10⁻⁷ m

Explanation:

To find the wavelength, you can use the following formula:

wavelength = speed of light / frequency

Since you have been given both the speed of light and frequency, you can plug these values into the equation to find wavelength.

wavelength = speed of light / frequency

wavelength = (3.00 x 10⁸ m/s) / (7.80 x 10¹⁴ Hz)

wavelength = 3.85 x 10⁻⁷ m

The 3 common gases that give off reactions are Hydrogen sulfide, Carbon monoxide, Nitrogen oxides.

Off reactions are defined as chemical reactions that occurs when something burns or during combustion of materials which gives off energy.

Some gases that give off reaction are:

Note that these gases are mostly poisonous.

Therefore, the 3 common gases that give off reactions are Hydrogen sulfide, Carbon monoxide, Nitrogen oxides.

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The required energy will be "87752 J".

The definition of energy is "ability to do work," which is the capacity to apply a force that causes an item to move.

Mechanical, heat, chemical, electrical, radiant, nuclear, and sound are the seven types of energy.

The energy will be:

Q1 = 36 × 3.18(100-65)

Q1 = 5267 J

Moles of water = [tex]\frac{36.0}{18}[/tex]

Moles of water = 2

then,

Q2 = 2× 40.7

Q2 = 81.4 KJ

Q2 = 81400 J

Q3 = 36.0 × 2.01(115-100)

Q3 = 1085 J

hence,

Required energy will be= Q1+ Q2+ Q3

Required energy = 5267 + 81400 + 1085

Required energy = 87752 J

hence, 87752 J energy is required to heat 36. 0 g h2o from a liquid at 65°c to gas at 115°c.

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From the calculations, the percentage of the mineral left is 6.25%.

The term half life refers to the time that it takes for only half of the number of radioactive isotopes to remain.

From;

N/No = (0.5)^t/t1/2

N = ?

No = ??

t = 2000

t1/2 = 500

N/No =(0.5)^(2000/500)

N/No = 0.0625

Thus the percent left = 0.0625 * 100 = 6.25%

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Answer:

one mole contains exactly 6.022 14076 into 10 23 elementary this number is the fix numerical value of the evandi and the constant and a b where expects in the unit mol - 1 is called the abacation number that amount of substance of a system is measured of the number specific

Moles of electrons:

The moles of electrons that are transferred are 12F

A balanced equation:

2 moles of Aluminium metal react with excess copper(II) nitrate.

[tex]2Al + 3Cu{(NO_3)}_2 \rightarrow 2Al{(NO_3)}_3 +3 Cu[/tex]

Given:

Moles of Aluminium = 2

As Aluminium goes from 0 to +3 oxidation state

[tex]Al \rightarrow Al^{3+} + 3e^-[/tex]

And copper goes from +2 to 0

[tex]Cu^{2+} + 2e^-\rightarrow Cu[/tex]

On balancing the number of electrons we get:

For 1 mole of Al [tex]6e^-[/tex] is required.

Therefore for 2 moles of Al,

Total [tex](2\times6)[/tex]F mole of electrons

Where F= Faraday's constant= 96500 C

So, 12F moles of electrons are transferred.

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Answer:

alkanes alkens alkenes and a bromatic hydrocarbons

Answer:

[tex]\huge\boxed{\sf Pentane}[/tex]

Explanation:

Prefix for 5 carbons = Pent

Suffix for all single bonds = ane (since the compound is alkane)

So, the name of this hydrocarbon is:

[tex]\rule[225]{225}{2}[/tex]

Answer:

11.8.4 Distillation Columns

Distillation columns present a hazard in that they contain large inventories of flammable boiling liquid, usually under pressure. There are a number of situations which may lead to loss of containment of this liquid.

The conditions of operation of the equipment associated with the distillation column, particularly the reboiler and bottoms pump, are severe, so that failure is more probable.

The reduction of hazard in distillation columns by the limitation of inventory has been discussed above. A distillation column has a large input of heat at the reboiler and a large output at the condenser. If cooling at the condenser is lost, the column may suffer overpressure. It is necessary to protect against this by higher pressure design, relief valves, or HIPS. On the other hand, loss of steam at the reboiler can cause underpressure in the column. On columns operating at or near atmospheric pressure, full vacuum design, vacuum breakers, or inert gas injection is needed for protection. Deposition of flammable materials on packing surfaces has led to many fires on opening of distillation column for maintenance.

Another hazard is overpressure due to heat radiation from fire. Again pressure relief devices are required to provide protection.

The protection of distillation columns is one of the topics treated in detail in codes for pressure relief such as APIRP 521. Likewise, it is one of the principal applications of trip systems.

Another quite different hazard in a distillation column is the ingress of water. The rapid expansion of the water as it flashes to steam can create very damaging overpressures.

Answer:

See below

Explanation:

Volume would decrease to temp of approx 4 C  then it would slightly increase to the 1 degree C  point but it would still be a smaller volume than at 18 C .    

  ( this assumes a freezing point of   - 1.11 C for Coke )

Answer:

homozygote

Explanation:

Because tongue-rolling is recessive, the only way a person would be unable to roll his/her tongue would be if s/he were homozygous mutant.

Answer:

Keep it undisturbed for some time and let it settle down. Then use a separating funnel, to separate them both

Explanation:

Answer:

A solution in which the maximum amount of solvent has been dissolved. Any more solute added will sit as crystals on the bottom of the container.

Explanation:

defective greatest formerly knows sd ghost;

C. PH3 represents a compound commonly known as phosphine, whose IUPAC name is phosphorus trihydride.

The electronegativity of PH3 found in the Periodic Table of the Period attracts covalent electron pairs and creates covalent bonds. However, because the electrons are not bound, asymmetrical rate distribution occurs. Therefore, PH3 is a polar molecule with a non-polar covalent bond and currently has no polar bond.

A covalent bond consists of sharing one or more electron pairs between two atoms. These electrons are attracted to two nuclei at the same time. Covalent bonds are formed when the difference in electronegativity between two atoms is too small for electron transfer to form ions.

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Answer:

C.) ph3

Explanation:

The cutoff frequency for a certain element is 1.22 x 1015 Hz this is its

work function in eV that is Work done = 5.05 eV.

Definition of labor function is the power this is wished for a particle to return back from the indoors of a medium and spoil via the surface —used particularly of the photoelectric and thermionic emission of electrons from metals paintings function.

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Answer:

The bell and the Eiffel tower

Answer:

02 or oxygen if im not mistaken

Answer:

I think its vaccines

The zone and its characteristics include the following:

This is referred to regions which is located at about 30 degrees north and south of the equator and forms the basis of westerlies.

The other zones such as doldrums are also found at the equator with their respective features and can be seen above. This therefore makes it the most appropriate choice.

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The independent variable is the different amounts of salt that will be added to the water.

A variable is any characteristic, number, or quantity that can be measured or counted.

The independent variable is the different amounts salt that will be added to the water (what is done by the scientist).

The dependent variable is the boiling temperature of the water (what is being measured).

HYPOTHESIS: If salt is added to water then, the boiling temperature is lowered.

Hence, the independent variable is the different amounts of salt that will be added to the water.

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Answer:

A

Explanation:

I think it's A. There are good answer for A.

Answer:

0.893mol

Explanation:

n = m ÷ M

= 275 ÷ (23 + 80)

= 2.67 mol

* now use the Mol ratio *

NaBr : FeBr3

6 : 2

2.67 : x

5.67 = 6x

n( FeBr3 ) = 0.893 mol

Emerald  can be described as a transparent, green coloured gem stone made up of mineral beryl together with trace amount of chromium or sometimes vanadium having chemical formula as [tex]Be_3Al_2(SiO_3)_6[/tex] .

Through time, the emerald has been known as a symbol of truth and love.

In ancient Greece and Rome, emerald was said to be the gemstone of the goddess Venus, purveyor of love and hope.

On the other side of the world, emeralds were revered by the Incas and believed by the Egyptians to be a source of eternal life.

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Based on consumption of fossil fuels today, It can be predicted Fossil Fuels will eventually be used up and a new energy developed to supply energy needs of the world.

Fossil fuels are made from decomposing plants and animals.

These fuels are found in the Earth's crust and contain carbon and hydrogen, which can be burned for energy.

Coal, oil, and natural gas are examples of fossil fuels.

Above given fossil fuels are expected to be used up and a new energy developed to supply energy needs of the world.

Therefore, Based on consumption of fossil fuels today, It can be predicted Fossil Fuels will eventually be used up and a new energy developed to supply energy needs of the world.

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the answer is:

40 g/mole