A gas occupies 10.00L at 100k and exerts a pressure of 1.71atm. What volume, in liters, will the gas occupy if the temp is increased to 290.29K and the pressure is increased to 9.70atm?

Answer:

From the plastic cup to the water

Explanation:

The thermal energy is transferred from the plastic cup to the water inside the cup.

This is because thermal energy moves from a body at high temperature to one at lower temperature.

Answer:

Top = H₂SO₄, H₂O   or    H₃O⁺

Middle = 1.) Hg(OAc)₂, H₂O
              2.) NaBH₄

Bottom = 1.) BH₃ · THF
               2.) H₂O₂, NaOH

Explanation:

In the top reaction, the alcohol is being added to the most substituted carbon in the entire molecule. The top reaction could use H₂SO₄, H₂O as the reagents or H₃O⁺ as the reagent.

In the middle reaction, the alcohol is being added to the most substituted carbon included in the double bond. Hg(OAc)₂ is the shorthand way of representing mercury (II) acetate.

In the the bottom reaction, the alcohol is being added to the least substituted carbon included in the double bond.

Answer: 4.88 g/mol. and helium

Explanation:

To find the molar mass of the gas, we can use the ideal gas law equation which is PV=nRT where:

P = pressure = 2.000 atm

V = volume = 50.00 L

n = number of moles

R = gas constant = 0.08206 L·atm/K·mol

T = temperature = 273.15 K

First, we need to find the number of moles of the gas:

PV = nRT

n = PV/RT

n = (2.000 atm)(50.00 L)/(0.08206 L·atm/K·mol)(273.15 K)

n = 1.844 mol

Now, we can find the molar mass of the gas by dividing its mass by the number of moles:

molar mass = mass/number of moles

mass = 9.00 g

molar mass = 9.00 g/1.844 mol

molar mass = 4.88 g/mol

Therefore, the molar mass of the gas is 4.88 g/mol.

To determine what gas this is, we can compare the molar mass of the gas to the molar masses of known gases. The molar mass of 4.88 g/mol is closest to that of helium (4.00 g/mol). Therefore, this gas is most likely helium.

The instrument to measure volume in the laboratory here is a graduated cylinder and volumes include, for example, 68 ml (1), 32,5 ml (2), 82 ml (3), etc.

A graduated cylinder is an instrument used in laboratories to measure the volume of a given solution, which is generally expressed as millimeter units (ml).

In this case, the millimeters can exactly determine the volume of liquid that will be used during the formulation of the solution.

In conclusion, the instrument to measure volume in the laboratory here is a graduated cylinder and volumes include, for example, 68 ml (1), 32,5 ml (2), 82 ml (3), etc.

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The number of positive charge units (protons) in the nucleus is defined as the atomic number, which is the single most significant property of an atom. Atomic numbers are typically represented by the symbol Z.

A component of an element is an atom. A specific element only has one kind of atom per atom. Protons, neutrons, and electrons, which are subatomic particles, make up the remainder of an atom. Chemical reactions can result in the combination of elements to create molecules. The number assigned to a chemical element by its atomic number in the periodic system places the elements in ascending order of the number of protons in their nuclei.

The number of positive charge units (protons) in the nucleus is defined as the atomic number, which is the single most significant property of an atom. Atomic numbers are typically represented by the symbol Z.

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The amount of heat energy produced when 1 g of hydrogen and 2 g of nitrogen are reacted, is -6.61 KJ

First, we shall obtain the limiting reactant. Details below:

3H₂ + N₂ -> 2NH₃

From the balanced equation above,

28 g of N₂ reacted with 6 g of H₂

Therefore,

2 g of N₂ will react with = (2 × 6) / 28 = 0.43 g of H₂

We can see that only 0.43 g of H₂ is needed in the reaction.

Thus, the limiting reactant is N₂

Finally, we the amount of heat energy produced. Details below:

3H₂ + N₂ -> 2NH₃ ΔH = -92.6 KJ

From the balanced equation above,

When 28 grams of N₂ reacted, -92.6 KJ of heat energy were produced.

Therefore,

When 2 grams of N₂ will react to produce = (2 × -92.6) / 28 = -6.61 KJ

Thus the heat energy produced from the reaction is -6.61 KJ

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Answer:

Both A and B

Explanation:

A.

the limestone, because the acidic groundwater would dissolve the rock's calcite

B.

the granite, because the acidic groundwater would oxidize the rock's iron

Answer: so I was really scared to tell my mom and I was always thinking about how should I tell here but she should tell her mom an just said I think I started my thing  her mom wont get mad she got it to and every girl goes thru that so your not alone

Explanation; she does not have to tell her mom but her mom could helpo her and give her tips

Answer:

Tell her to calm down and tell her mum because her mom knows better and would be able to put her through better than anyone could have ever.

On the decomposition of 2.60 moles of hydrogen peroxide, 254.8 KJ energy will be released.

A decomposition reaction can be defined as a reaction in which a chemical compound breaks down into two or more simple compounds. The general form  to express a decomposition reaction is:

AB    →   A   +    B

Most decomposition reactions accept energy in the form of heat, radiation, or electricity. The decomposition reaction of hydrogen peroxide is shown below:

2H₂O₂(l)    →   2H₂O (l)  +  O₂(g)                        ΔH = - 196 KJ/mol

2 moles of  hydrogen peroxide decomposes energy released = 196 KJ

2.60 of H₂O₂  decomposes energy released = 196 ×2.60/2 = 254.8 KJ

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Answer:

If n = 4, then the possible values of 1 and m depend on the equation or expression being used. Without more information, it is impossible to determine what the possible values of 1 and m might be. Can you please provide more context or information about the problem you are trying to solve?

Answer: 0.983 moles of carbon dioxide are present

Explanation:

To determine the number of moles of carbon dioxide (CO₂) present when there are 11.8 x 10²³ atoms of oxygen, we need to consider the molecular formula of carbon dioxide.

The molecular formula of carbon dioxide (CO₂) indicates that there is one carbon atom and two oxygen atoms in each molecule of carbon dioxide.

Given that there are 11.8 x 10²³ atoms of oxygen, we can divide this number by 2 to determine the number of carbon dioxide molecules present, since each molecule of carbon dioxide contains two oxygen atoms.

Number of carbon dioxide molecules = \(\frac{11.8 X 10^2^3 atoms of oxygen }{2}\)

Next, we can use Avogadro's number, which states that there are approximately 6.022 x 10²³molecules per mole, to convert the number of carbon dioxide molecules to moles.

Number of moles of carbon dioxide = (11.8 x 10²³ atoms of oxygen / 2) / (6.022 x 10^23 molecules per mole)

Evaluating this expression, we get:

Number of moles of carbon dioxide = 0.983 moles

Answer:

172 g

Explanation:

Let's consider the reduction of Au³⁺ to Au.

Au³⁺(aq) + 3 e⁻ → Au(s)

In order to find the mass of gold produced, we will use the following relations.

The mass of gold produced when 15.1 A of current are passed through a gold solution for 31.0 min is:

\(31.0min \times \frac{60s}{1min} \times \frac{15.1C}{s} \times \frac{1mole^{-} }{96,468C} \times \frac{3molAu}{1mole^{-} } \times \frac{196.97gAu}{1molAu} = 172 gAu\)

Answer:

A hole

Explanation:

put a hole in the barrel and let some water out

The thing you would add to the barrel would be holes which would cause water to fall out of the barrel.

Pound is defined as the basic unit for weight in the Foot Pound Second (F.P.S) system and is equal to 16 ounces.

An example of a pound is a man weighing 186 pounds.

The thing you would add to the barrel would be holes which would cause water to fall out of the barrel.

The amount of holes you would add and where you would add them would depend all on how much the barrel weighs without the water.

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The temperature increase from 20 °C to 46 °C indicates that the reaction between zinc and copper sulfate solution is exothermic, with heat being released into the surroundings.

In the given reaction between zinc and copper sulfate solution, the temperature change can provide insights into the type of heat change occurring during the reaction. Based on the provided information, the initial temperature of the copper sulfate solution was 20 °C, and the final temperature of the mixture after the reaction was 46 °C.

The temperature increase observed in this reaction indicates an exothermic heat change. An exothermic reaction releases heat energy into the surroundings, resulting in a temperature rise. In this case, the reaction between zinc and copper sulfate solution is exothermic because the final temperature is higher than the initial temperature.

During the reaction, zinc displaces copper from copper sulfate to form zinc sulfate and copper metal. This displacement reaction is known as a single displacement or redox reaction. Zinc is more reactive than copper and therefore replaces copper in the compound.

The formation of new chemical bonds during the reaction releases energy in the form of heat. This energy is transferred to the surroundings, leading to an increase in temperature. The heat released is greater than the heat absorbed, resulting in a net increase in temperature.

The exothermic nature of this reaction can be explained by the difference in bond energies between the reactants and products. The breaking of bonds in the reactants requires energy input, while the formation of new bonds in the products releases energy.

In this case, the energy released during the formation of zinc sulfate and copper metal is greater than the energy required to break the bonds in copper sulfate and zinc.

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Answer:

The nucleus contains two types of subatomic particles, protons and neutrons. The protons have a positive electrical charge and the neutrons have no electrical charge. A third type of subatomic particle, electrons, move around the nucleus. The electrons have a negative electrical charge.

Hydrogen is formed at the negative electrode (cathode) and oxygen at the positive electrode (anode) and the concentration of sulfuric acid increases.

Direct electric current is used in the electrolysis process to accelerate chemical reactions that would not naturally occur.

It can be seen that as the electrolysis proceeds the dilute sulfuric acid gets slightly more concentrated as only water is removed from the electrolyte as hydrogen and oxygen.

The ions present in the dilute acid are H+(aq), OH–(aq) and SO4 2–(aq).

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suggest an explanation of why the concentration of the sulfuric acid increases during electrolyis

Answer:

THE NAME OF THE ACID WITH FORMULA HCIO IS HYPOCHLOROUS ACID

Answer:

Condensation

Explanation:

Zoe is quite keen to have noticed what we call condensation. Air contains many components, one of those being water vapor. Like how sugar is soluble in water, water can be said to be "soluble" in air. Water will evaporate into the air to a certain extent. The higher the temperature of the air, the more water the air can hold. If the air has more water that it can hold (potentially because of a temperature decrease), the extra water will come out of the air. Zoe's water bottle was cold, and because the air around Zoe's bottle had cooled down, the air can not hold as much water as it could when it was warm, so the air deposited the extra water in the form of liquid water onto the bottle, giving the illusion that her bottle was sweating.

Answer:

Electron

Explanation:

Answer:

A.) the molecules that make up the cell membrane

Explanation:

Phospholipids are the molecules that makes up the cell membrane. They are lipid layers which gives support and regulates the movement of materials in and out of the cell.

The phospholipid is very important for the building of membrane round a cell. They are made up of rich lipid layer which is made up of phosphoric acids, nitrogen base, alcohol and fatty acids.

With these molecules, they are able to stabilize and regulate the movement of materials in and outside of the cell.

Answer: C

Explanation:

A. As they do not have a given shape and expand to fill the container, modifying the size of the container modifies the space the gas occupies

B. They are nearly free molecules, which means no bound between them, moving fast and freely around the container

C. NOT A PROPERTY. As said before, as there are no bindings between molecules and move freely, they cannot have a fixed size cause they're always on the move.

D. Because they expand to fill the container, it's easy to them to occupy more space than in any other state, as the container is the only thing that defines how much volume they occupy

Sand casting, which makes up around 70% of all metal casting, is the most common casting technique. A design of the finished object is created in wood or metal and employed in the process of "sand casting,".

Casting techniques are a class of manufacturing procedures used to turn liquid materials like metal, plastic, or ceramics into solid things. The liquid substance is put into a mould and given time to harden and assume the contours of the hollow. Casting techniques come in a variety of forms, including sand casting, investment casting, die casting, shell casting, and lost foam casting. The kinds of materials that can be cast, the degree of accuracy and surface quality, and the complexity of the pieces that can be created are only a few of the distinctive characteristics that each casting technique has. The automobile, aerospace, and construction industries all use casting techniques extensively.

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Answer:

Rain shadow

Explanation:

Climate is the average weather condition of a place over a long period of time.

The image shows a rain shadow effect around a mountainous region. The type of rainfall controlled this way is known as an orographic rainfall.

The formation at the uppermost part of this Colorado River Basin formation

are tectonic uplifts as a result of the exposure of the rocks present in the

area.

It stretches as far as 100 miles and is located in two parks known as

The layers from the Mesozoic and Cenozoic Eras are not present in the

layers seen at the Grand Canyon as a result of new rocks being formed on

top of the eroded ones over time.

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What is when the molecular weight of horseradish peroxidase is about 44,000 g/mol, The number of moles of the enzyme used per mole of vanillin is

ME=289.188moles

Generally, the equation for the moles of the enzyme  is mathematically given as

\(ME=\frac{molecular weight}{vanilin MW}\)

Therefore

ME=44000/152.15

ME=289.188moles

In conclusion, the number of moles of the enzyme is

ME=289.188moles

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Answer:

0, 0, 0, +1, 0

Explanation:

Because the compound has a +1 charge overall, the sum of the formal charges must equal +1.  The correct answer is the Lewis structure with as many atoms as possible having the formal charge of 0 with just a single atoms having the +1 formal charge.

Answer:

The maximum mass of carbon dioxide, CO₂ produced is 2.64 g

Explanation:

We'll begin by writing the balanced equation for the reaction. This is illustrated below:

2C₈H₁₈ + 25O₂ —> 16CO₂ + 18H₂O

Next, we shall determine the masses of C₈H₁₈ and O₂ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:

Molar mass of C₈H₁₈ = (8×12) + (18×1)

= 96 + 18

= 114 g/mol

Mass of C₈H₁₈ from the balanced equation = 2 × 114 = 228 g

Molar mass of O₂ = 2 × 16 = 32 g/mol

Mass of O₂ from the balanced equation = 25 × 32 = 800 g

Molar mass of CO₂ = 12 + (2×16)

= 12 + 32

= 44 g/mol

Mass of CO₂ from the balanced equation = 16 × 44 = 704 g

SUMMARY:

From the balanced equation above,

228 g of C₈H₁₈ reacted with 800 g of O₂ to produce 704 g of CO₂.

Next, we shall determine the limiting reactant. This can be obtained as follow:

From the balanced equation above,

228 g of C₈H₁₈ reacted with 800 g of O₂.

Therefore, 3.43 g of C₈H₁₈ will react with = (3.43 × 800)/228 = 12.04 of O₂

From the calculations made above, we can see that a higher mass (i.e 12.04 g) of O₂ than what was given (i.e 3 g) is needed to react completely with 3.43 g of C₈H₁₈. Therefore, O₂ is the limiting reactant and C₈H₁₈ is the excess reactant.

Finally, we shall determine the maximum mass of carbon dioxide, CO₂ produced from the reaction.

To obtain the maximum mass of carbon dioxide, CO₂ produced, the limiting reactant will be used because all of it is consumed in the reaction.

The limiting reactant is O₂ and the maximum mass of carbon dioxide, CO₂ produced can be obtained as follow:

From the balanced equation above,

800 g of O₂ reacted to produce 704 g of CO₂.

Therefore, 3 g of O₂ will react to produce = (3 × 704)/800 = 2.64 g of CO₂.

Thus, the maximum mass of carbon dioxide, CO₂ produced is 2.64 g

Answer: 4.76 * 10^2

476.

you bring the ending decimal to the first number and it takes you two hops to get the first number so that's what you put in the box after the 10

The number of gold atom : 1.204 x 10²¹

Given

0.6 g of 18 carat gold

mass number of gold = 197

24 carat as 100% gold

Required

The number of gold atom

Solution

Percentage of gold in 18 carat :

\(\tt \dfrac{18}{24}\times 100\%=75\%\)

Mass of gold in 0.6 g of 18 carat :

\(\tt 75\%\times 0.6~g=0.45~g\)

mol :

\(\tt mol=\dfrac{mass}{MW}=\dfrac{0.45}{197}=0.0023\)

A mole is a number of particles(atoms, molecules, ions)  in a substance

1 mole = 6.02.10²³ particles  

So the number of gold atom :

\(\tt 0.0023\times 6.02\times 10^{23}=1.204\times 10^{21}\)

The conversions that could be performed with these two conversion factors alone, Density—> molar mass or/formula mass—> is volume ---> moles; option D

Conversion factors are expressions or values which are used to convert from one unit or value to another.

The conversion factor given is:

Density—> molar mass or/formula mass—>

volume = density/mass

moles = mass/molar mass

Volume to moles = density/mass -->  mass/ molar mass

Volume to moles = density ---> molar mass or formula mass

The conversion of volume to moles will therefore require density and molar mass or formula.

In conclusion, conversion factors are used to convert from one unit  value to another.

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