Calculate the volume of an object with a density of .85 g/mL and a mass of 212 g.

Answer:

4 PH₃ + 8 O₂ -----> P₄O₁₀ + 6 H₂O

Explanation:

An equation is balanced when there is an equal amount of each element on both sides of a chemical reaction. Remember, the reactants are the molecules that lie on the left of the reaction arrow and the products are the molecules that lie on the right.

The unbalanced equation:

PH₃ + O₂ -----> P₄O₁₀ + H₂O

Reactants: 1 phosphorus, 3 hydrogen, 2 oxygen

Products: 4 phosphorus, 2 hydrogen, 11 oxygen

As you can see, there is an unequal amount of each element. To balance the equation, we can add coefficients to change the quantity of particular molecules. By doing this, you subsequently change the amount of the elements.

The balanced equation:

4 PH₃ + 8 O₂ -----> P₄O₁₀ + 6 H₂O

Reactants: 4 phosphorus, 12 hydrogen, 16 oxygen

Products: 4 phosphorus, 12 hydrogen, 16 oxygen

****P₄O₁₀ technically has a coefficient of 1

4.50 atm

Dalton's law of partial pressures lets us find the individual pressures of gases within a mixture.

Dalton's Law of Partial Pressures

Dalton's law of partial pressures states that the total pressure of the mixture is equal to the sum of the partial pressures. Partial pressures refer to the individual pressures of the gases within the mixture. In equation form, Dalton's law of partial pressures is:

Using this concept and equation, we can find the pressure of oxygen.

Finding P of Oxygen

First, let's write an equation to represent this situation. We know that the total pressure is equal to the pressure of helium plus oxygen.

Now, we can plug in the information we know,

Finally, solve for P₀

Remember that since this calculation is based on measured values, we need to round according to significant figure rules. This means that the pressure of oxygen is 4.50 atm.

The pressure of oxygen if helium's pressure is 2.25 atm is 4.50 atm.

To determine the pressure of oxygen in the container, we can use Dalton's law of partial pressures, which states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of each gas.

In this case, the total pressure is given as 6.75 atm, and the pressure of helium is given as 2.25 atm. We need to find the pressure of oxygen (O2).

According to Dalton's law:

Total pressure = Pressure of oxygen + Pressure of helium

6.75 atm = Pressure of oxygen + 2.25 atm

To find the pressure of oxygen, we can rearrange the equation:

Pressure of oxygen = Total pressure - Pressure of helium

Pressure of oxygen = 6.75 atm - 2.25 atm

Pressure of oxygen = 4.50 atm

Therefore, the pressure of oxygen in the container is 4.50 atm.

This result is obtained by applying Dalton's law, which states that in a mixture of gases, each gas contributes to the total pressure independently. The individual pressures of the gases can be determined by subtracting the pressure of one gas from the total pressure.

In this case, the pressure of oxygen is calculated by subtracting the pressure of helium (known as the partial pressure of helium) from the total pressure of the mixture. This assumes that the gases do not interact chemically, and their behavior can be considered ideal.

Know more about Pressure here:

https://brainly.com/question/28012687

#SPJ11

Typically, you must identify the x- and y-axes, which represent the two variables being measured or compared, in order to label a graph.

The graph's shape must be examined in order to determine the type of relationship between the variables. The relationship is considered to be linear if the graph depicts a straight line. The relationship is non-linear if the graph shows a curve. To determine whether the relationship is positive or negative, you would also need to look at the line's slope and direction. The relationship is positive if the line slopes upwards from left to right; this indicates that as one variable rises, so does the other. The relationship is negative if the line slopes downward from left to right, indicating that one variable increases while the other decreases.

To know more about Variables, visit:

https://brainly.com/question/17344045

#SPJ1

Ionic bonding is a type of chemical bond that occurs when electrons are transferred between atoms to form ions. The resulting ions are attracted to each other by their opposite charges and form an ionic compound. Here is a summary of the information you provided:

Element: Na (sodium)

Number of valence electrons: 1

Dot structure: Na

Transfer of electrons: Na loses 1 electron to become Na+

Ions formed: Na+ and Cl-

Compound formed: Sodium chloride (NaCl)

Name of compound: Salt

Element: F (fluorine)

Number of valence electrons: 7

Dot structure: F

Transfer of electrons: F gains 1 electron to become F-

Ions formed: F- and Mg2+

Compound formed: Magnesium fluoride (MgF2)

Element: O (oxygen)

Number of valence electrons: 6

Dot structure: O

Transfer of electrons: O gains 2 electrons to become O2-

Ions formed: Ba2+ and O2-

Compound formed: Barium oxide (BaO)

Element: Li (lithium)

Number of valence electrons: 1

Dot structure: Li

Transfer of electrons: Li loses 1 electron to become Li+

Ions formed: Li+ and Cl-

Compound formed: Lithium chloride (LiCl)

Element: P (phosphorus)

Number of valence electrons: 5

Dot structure: P

Transfer of electrons: P gains 3 electrons to become P3-

Ions formed: Al3+ and P3-

Compound formed: Aluminum phosphide (AlP)

Element: N (nitrogen)

Number of valence electrons: 5

Dot structure: N

Transfer of electrons: N gains 3 electrons to become N3-

Ions formed: Al3+ and N3-

Compound formed: Aluminum nitride (AlN)

Answer:

Explanation:

Materials are clothes and heavy rope

Answer:

The amount of water that can be heated by 1,000.0 J of heat energy depends on the mass of water and the specific heat capacity of water.

Assuming the water is at an initial temperature of 20.0°C, we can use the formula:

Q = mcΔT

Where:

Q = heat energy (Joules)

m = mass of water (in grams)

c = specific heat capacity of water (4.184 J/g°C)

ΔT = change in temperature (final temperature - initial temperature)

Rearranging the formula to solve for the mass of water:

m = Q / (c*ΔT)

Plugging in the given values:

m = 1000 J / (4.184 J/g°C * (final temperature - 20.0°C))

Assuming the final temperature is 100.0°C (the boiling point of water at standard pressure), the calculation becomes:

m = 1000 J / (4.184 J/g°C * (100.0°C - 20.0°C))

m = 1000 J / (4.184 J/g°C * 80.0°C)

m = 2.39 grams

Therefore, 1,000.0 J of heat energy can heat 2.39 grams of water from 20.0°C to 100.0°C.

Making a pesticide from a 5-atom alkane to an 18-atom molecule requires a complex process involving many steps and various reactions.

There are many different insecticides on the market, each with a unique chemical composition and mode of operation. The desired end product will determine the exact reactions and conditions needed to make a pesticide from the alkane. In general, making a pesticide from an alkene requires several important steps, including oxidation, halogenation, and cyclization. The first step is the oxidation or halogenation of the alkene to produce a more reactive intermediate.

Therefore, the correct option is D.

Learn more about Pesticides, here:

https://brainly.com/question/30295459

#SPJ1

Your question is incomplete, most probably the complete question is:

The processes which are used to convert alkane consists of 5 atoms to insecticide consists of (18) atoms are

a) strong heating then rapid quenching then halogenation then polymerization

b) polymerization then halogenation then strong heating then rapid quenching

c) strong heating then rapid quenching then polymerization then halogenation halogenation then rapid quenching then strong heating then polymerization​

d) The synthesis of an insecticide from an alkane with 5 atoms to a molecule with 18 atoms requires multiple steps and the specific reactions and conditions used will depend on the insecticide being synthesized.

Answer:

francium or cesium

Answer:

Meiosis

Explanation:

They just split in four.

Answer:

1900 mmHg.

Explanation:

The following data were obtained from the question:

Initial volume (V1) = 500 mL

Initial pressure (P1) = 760 mmHg

Final volume (V2) = 200 mL

Final pressure (P2) =?

Temperature = constant.

Since the temperature is constant, we shall use the Boyle's law equation to obtain the new pressure as illustrated below:

P1V1 = P2V2

760 × 500 = P2 × 200

Divide both side by 200

P2 = (760 × 500) / 200

P2 = 1900 mmHg

Therefore, the new pressure is 1900 mmHg.

The urinary system's main functions are to remove waste and regulate the blood. Therefore, option (A) is correct.

The urinary system contains of the kidneys, ureters,bladder, and urethra. The main function of the urinary system is to remove waste from the body, regulate blood pressure and blood volume, control levels of electrolytes and metabolites, and regulate blood pH.

The urinary system is the drainage system of the human body for the eventual removal of urine. The kidneys have extensive blood provided through the renal arteries which leave the kidneys through the renal vein. Each kidney contains functional units known as nephrons.

Following filtration of blood exit the kidney through the ureters, tubes composed of smooth muscle fibers that propel urine towards the urinary bladder, stored and subsequently expelled from the body by urination.

Learn more about the urinary system, here:

https://brainly.com/question/10298346

#SPJ1

Despite having similar minerals plagioclase feldspar and pyroxene and chemical compositions, gabbro and basalt are two distinct igneous rocks.

Dacite is a fine-grained extrusive rock that is similar to andesite in general but has more quartz and less calcic plagioclase than andesite; Many claim that it is granodiorite's extrusive counterpart.

Andesite and diorite are comparable rocks. They are found in the same places and contain the same minerals. Their cooling rates and grain sizes are what differentiate them. Within the Earth, diorite slowly crystallized.

To know more about pyroxene visit :-

https://brainly.com/question/30031364

#SPJ1

The concentration of chloride ions when 2.5 g of FeCl is dissolved in 150 mL of water is approximately 0.54 M.

To determine the concentration of chloride ions when 2.5 g of FeCl is dissolved in 150 mL of water, we need to consider the molar mass of FeCl and perform some calculations.

The molar mass of FeCl is 55.85 g/mol (for iron) + 35.45 g/mol (for chlorine), which gives a total molar mass of 91.3 g/mol for FeCl.

First, we need to calculate the number of moles of FeCl present in 2.5 g of the compound. This can be done using the formula:

moles = mass / molar mass

moles of FeCl = 2.5 g / 91.3 g/mol = 0.027 moles

Next, we convert the volume of water from milliliters (mL) to liters (L):

volume of water = 150 mL = 150/1000 L = 0.15 L

Now, we can calculate the concentration of chloride ions (Cl-) using the formula:

concentration (Cl-) = moles of Cl- / volume of water

Since FeCl dissociates into one Fe3+ ion and three Cl- ions, the number of moles of Cl- is three times the moles of FeCl:

moles of Cl- = 3 * moles of FeCl = 3 * 0.027 moles = 0.081 moles

concentration (Cl-) = 0.081 moles / 0.15 L = 0.54 M.

For more such questions on concentration visit:

https://brainly.com/question/28564792

#SPJ8

Answer:

Enthalpy of formation of strontium chloride, SrCl = -558.1 kJ/mol

Explanation:

Sr(s) -------> Sr(g)       ΔHsublimation = +164 kJ/mol

Sr⁺(g) -------> Sr⁺(g)    First Ionization energy, IE₁ = +549 kJ/mol

Sr⁺(g) -------> Sr²⁺(g)    Second ionization energy, IE₂ = +1064 kJ/mol

I₂(s) --------> I₂(g)   ΔHsublimation = +62.4 kJ/mol

I₂(g) -------> 2I(g)   Bond dissociation energy, BE = +152.55 kJ/mol

2I(g) ----> 2I⁻(g)   Electron affinity, EA = 2 (-295.15 kJ/mol) = -590.3 kJ/mol

Sr²⁺(g) + 2I⁻(g) ------> SrI₂(s)    Lattice energy, LE = -1959.75 kJ/mol

Overall equation for the formation of SrCl₂ is given as:

Sr(s) + I₂(s) ----> SrI₂(s)    ΔHformation = ?

Enthalpy of formation, ΔHformation = (ΔHsublimation of Sr(s) + IE₁ + IE₂ + ΔHsublimation of I₂(s) + BE + EA + LE)

ΔHformation = {164 + 549 + 1064 + 62.4 + 152.55 + (-590.3) + (-1959.75)} kJ/mol

Sr(s) + I₂(s) ----> SrI₂(s)    ΔHformation = -558 kJ/mol

Therefore, enthalpy of formation of strontium chloride, SrCl = -558.1 kJ/mol

Option (A) Computer Simulation Model.

What is computer simulation models?

A computer simulation model is a computer programme or algorithm that simulates changes in a modelled system in response to input signals.

What are examples of simulation models?

Weather forecasting, flight simulators used for pilot training, and car crash modelling are all examples of computer simulation modelling that most of us are familiar with.

What is simulation and its types?

A simulation is a computer-generated representation of the behaviour of a real-world process or system over time. Models are required for simulations; the model represents the key characteristics or behaviours of the selected system or process, while the simulation represents the model's evolution over time.

Hence Option (A) is a correct answer.

To know more aboutsimulation models follow link

https://brainly.com/question/15182181

#SPJ4

Answer:

it allow us to compare the amount of energy passing through each tropical level over a period of time

When fossil fuels burn, several forms of energy are produced, including:

Heat energy: The primary form of energy released during fossil fuel combustion is heat. Fossil fuels contain chemical energy stored for millions of years, and when they burn, this energy is released in the form of heat. The heat energy can be harnessed for various purposes, such as heating buildings or generating steam to drive turbines.

Light energy: Burning fossil fuels can also produce light energy in the form of flames or glowing embers. This light energy is a byproduct of combustion.

Mechanical energy: Heat generated by burning fossil fuels can be converted into mechanical energy. This is typically achieved by using heat to produce steam, which drives a turbine connected to a generator. The rotating turbine converts the heat energy into mechanical energy, which is further transformed into electrical energy.

Electrical energy: Through the process described above, burning fossil fuels can ultimately generate electrical energy. The mechanical energy produced by the turbine is converted into electrical energy by the generator. Electrical energy can power various devices, appliances, industries, and infrastructure.

It's critical to note that while burning fossil fuels can produce useful forms of energy, it also results in the release of carbon dioxide and other greenhouse gases. This contributes to climate change and environmental concerns. As a result, there is a global shift towards cleaner and renewable energy sources to mitigate these negative impacts.

Answer:

organic chemistry is defined as the study of carbon-containing compounds, inorganic chemistry is the study of the remaining (i.e., not carbon-containing) subset of compounds

Answer:

What are the answer choices???

Explanation:

a. The Mass of water driven off = 0.15 g

b. Moles of anhydrate = 0.00257 moles

c. Moles of water driven off is 0.00833 moles

d. There are 3 moles of water within the crystalline structure of one molecule of the hydrated salt.

e. The molecular formula of the hydrated salt will be X.3H₂O

a. The mass of water driven off from the hydrated salt is:

Mass of water driven off = 0.5 g - 0.35 g

Mass of water driven off = 0.15 g

b. Molecular mass of salt = 136 g/mol

moles of anhydrate = 0.35/136

Moles of anhydrate = 0.00257 moles

c. Moles of water driven off = mass/molar mass

molar mass of water = 18 g/mol

Moles of water driven off = 0.15/18

Moles of water driven off = 0.00833 moles

d. Moles of water within the crystalline structure of one molecule of the hydrated salt is determined by converting to whole number mole ratio by dividing with the smallest ratio,

Salt to water ratio = 0.00257 /0.00257  :  0.00833/0.00257

Salt to water ratio = 1 : 3

Therefore, there are 3 moles of water within the crystalline structure of one molecule of the hydrated salt.

e. Assuming the anhydrous salt is X, the molecular formula of the hydrated salt will be X.3H₂O

Learn  more about hydrated salts at: https://brainly.com/question/14447094

#SPJ1

Answer:

ExpC

H

4

+  

2

O

2

→

C

O

2

+  

2

H

2

O

This is the balanced reaction equation for the combustion of methane.

Explanation:

The Law of Conservation of Mass basically states that matter can neither be created nor destroyed. As such, we must be able to show this in our chemical reaction equations.

If you look at the equation above, you'll see an arrow that separates the reaction equation into two parts. This represents the direction of the reaction.

To the left of the arrow, we have our reactants.

To the right of the arrow, we have our products.

The quantity of each individual element in the left must equal the quantity of each individual element in the right.

So if you look below, you'll see the unbalanced equation, and I'll try to explain how to balance the reaction.

C

H

4

+  

O

2

→

C

O

2

+  

H

2

O

Our reactants in this equation are  

C

H

4

and  

O

2

.

Our next step is to break these down into individual atoms.

We have:

1 C atom, 4 H atoms & 2 O atoms.

If you're confused by this, look to see the little number to the bottom right of each element, the subscript, and it tells you how many of each atom are in the molecule. Make sense?

Now we look to the other side of the equation.

Here we see our products are  

C

O

2

+  

H

2

O

Again, we break these down into individual atoms again.

We have:

1 C atom, 2 H atom, 3 O atom

The physical examination of an organic compound are appearance and physical state, melting point and boiling point, solubility, density, and spectroscopic analysis

Appearance and physical state: observe the appearance of the compound and note its physical state.

Melting point and boiling point: measure the melting point and boiling point of the compound to determine its purity and identity.

Solubility: Test the solubility of the compound in different solvents such as water, ethanol, acetone, etc.

Density: determine the density of the compound to calculate its molecular weight and to assess its purity.

Spectroscopic analysis: use spectroscopic techniques such as nuclear magnetic resonance (NMR), and mass spectrometry (MS) to determine the functional groups, molecular structure, and identity of the compound.

Learn more about organic compound here: https://brainly.com/question/5994723

#SPJ1

they are caused by winds and changes in seawater density.

We can see here that the best fuel is the one that produces the most heat per unit mass. In this case, the fuel that produces the most heat per unit mass is methanol.

Fuel is a substance that is used to produce energy through combustion or other chemical reactions. It is commonly utilized to power various forms of transportation, generate heat or electricity, and operate machinery and appliances.

The results of the experiment are shown below:

Fuel            Mass (g)      Heat produced (J)       Heat per gram (J/g)

Methanol 1.0                          350                   350

Ethanol         1.0                          250                   250

Propane         1.0                          200                   200

Butane         1.0                          150                            150

Pentane         1.0                          100                            100

It is important to note that the results of this experiment are only a measure of the heat produced by the fuels.

Learn more about fuel on https://brainly.com/question/10172005

#SPJ1

Answer:

\(2.02gH_2\)

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to to calculate the mass of hydrogen gas by firstly setting up the undergoing chemical reaction:

\(2H_3PO_4+3Ca\rightarrow Ca_3(PO_4)_2+3H_2\)

Thus, we apply the following stoichiometric setup, whereas the atomic mass of calcium is 40.08 g/mol, that of hydrogen is 2.02 g/mol and the mole ratio of these two substances is 3:3:

\(40.08gCa*\frac{1molCa}{40.08gCa}*\frac{3molH_2}{3molCa}*\frac{2.02gH_2}{1molH_2} \\\\=2.02gH_2\)

Regards!

The slope of the line would be m = nRT.

How to prove this answer?

We know that the ideal gas law is PV = nRT.

We know that y = mx + b. In that case, plotting y vs x gives you a slope

of m and an intercept of b.

Here according to the question, If we send V to RHS,

P= (1/V) nRT Where y axis is P and 1/V is y axis, nRT would be the ultimate slope.

Howerver, intercept c ( y=mx+c) would be 0 as we considered ideal situation with temperature , R constant.

Therefore, Slope would be nRT.

To know more about ideal gas equation, click on the link below

https://brainly.com/question/24236411

#SPJ1

Answer:

Inherited behaviors are behaviors that are passed down genetically. Our genes control things like our hair type and color, our eye color, and our height—but we don't usually think of them controlling our behavior

Explanation:

The structure of 2-methylbutan-1-ol as displayed formula is CH3-CH(OH)-CH2-CH3}

The image attached below as displayed formula.

Generally, 2-Methylbutan-1-ol is an alcohol with the molecular formula C5H10O. It is a clear, colorless liquid with a sweet, fruity odor. It is also known as isoamyl alcohol or 3-methylbutanol.

It is a common constituent of many essential oils and is used as a solvent and a flavoring agent.

It is classified as secondary alcohol because the hydroxyl group is attached to a carbon atom that is bonded to two other carbon atoms.

CH3-CH(OH)-CH2-CH3}

Read more about 2-methylbutan-1-ol

https://brainly.com/question/7187124

#SPJ1

Mole measure the number of elementary entities of a given substance that are present in a given sample. Therefore, 0.25moles  of He are in a container with a volume of 5.6 L at STP.

The SI unit of amount of substance in chemistry is mole. The mole is used to measure the quantity or amount of substance. We know one mole of any element contains 6.022×10²³ atoms which is also called Avogadro number.

One mole of ideal gas has 22.4L volume at STP.

number of moles of Helium = Given volume ÷volume occupied by gas at STP

Given volume of helium = 5.6 L

Substituting all the given values, we get

number of moles of Helium = 5.6 L  ÷22.4L

number of moles of Helium =0.25moles

Therefore, 0.25moles  of He are in a container with a volume of 5.6 L at STP.

To know more about mole, here:

https://brainly.com/question/15209553

#SPJ1

Answer: 0.25 moles

Explanation:

Given volume of helium = 5.6 L

Substituting all the given values, we get

number of moles of Helium = 5.6 L  ÷22.4L

number of moles of Helium =0.25moles

Therefore, 0.25moles  of He are in a container with a volume of 5.6 L at STP.