a hydrocarbon is combusted in an excess of air. 15.32 grams of carbon dioxide and 7.32 grams of water are produced. what is the empirical formula of the compound?

Answer:

It would be around 10 grams

Explanation:

6+4

Answer: 0.3224, 7342, 54.32

Explanation:

0.1060 has 4 sig figs (1060 is 4 digits after the decimal point)

Answer:  Element Tellurium (Te), Group 16, Atomic Number 52, p-block, Mass 127.60. ... defined as being the charge that an atom would have if all bonds were ionic.

What ion does tellurium form?

Te+4

Tellurium, ion (Te4+) | Te+4 - PubChem.

Explanation:  Tellurium is a chemical element with the symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid.

Tellurium

Tellurium Element - Visual Elements Periodic Table

Discovery date 1783  

Discovered by Franz-Joseph Müller von Reichenstein  

Origin of the name The name is derived from the Latin 'tellus', meaning Earth.  

Allotropes  

Te

Tellurium

52127.60  

Fact box

Group 16  Melting point 449.51°C, 841.12°F, 722.66 K  

Period 5  Boiling point 988°C, 1810°F, 1261 K  

Block p  Density (g cm−3) 6.232  

Atomic number 52  Relative atomic mass 127.60  

State at 20°C Solid  Key isotopes 130Te  

Electron configuration [Kr] 4d105s25p4  CAS number 13494-80-9  

ChemSpider ID 4885717 ChemSpider is a free chemical structure database

1. Ammonia is a colorless gas with a chemical formula of NH3, when it comes in contact with water, it will be transformed into Ammonium ion and it will produce one hydroxide ion, and this is why Ammonia will present a more basic (pH) behavior, the reaction that represents this behavior is:

NH3 + H2O -> NH4+ + OH-

Number 4 is the only one that represents it well

Number 3 has the same reaction but since there is a plus sign instead of an arrow, I consider it wrong.

To convert an aldehyde to a carboxylic acid, oxidation of the aldehyde functional group is required.

There are several reagents that can be used for this conversion:

1. Strong Oxidizing Agents:

  - Potassium permanganate (KMnO4): In the presence of acidic conditions, KMnO4 can oxidize aldehydes to carboxylic acids.

  - Chromic acid (H2CrO4): It is a strong oxidizing agent that can convert aldehydes to carboxylic acids.

2. Tollens' Reagent:

  Tollens' reagent, also known as silver mirror reagent, is a solution of silver nitrate (AgNO3) and ammonia (NH3) in water. It can oxidize aldehydes to carboxylic acids under mild conditions. It produces a silver mirror on the inner surface of the reaction vessel.

3. Jones Reagent:

  Jones reagent consists of a solution of chromium trioxide (CrO3) in diluted sulfuric acid (H2SO4). It is a strong oxidizing agent that can convert aldehydes to carboxylic acids.

These are some commonly used reagents to convert aldehydes to carboxylic acids through oxidation. The choice of reagent may depend on factors such as reaction conditions, desired selectivity, and other functional groups present in the molecule.

To know more about aldehyde visit;

brainly.com/question/30459994

#SPJ11

The radius, mass and volume of the nucleus are Radius ≈ 2.72 fm Mass ≈ 2.17 x 10^(-26) kg Volume ≈ 108.4 cubic femtometers (fm^3)

The atomic number (A) represents the number of protons in the nucleus of an atom. However, carbon usually has an atomic number of 6, not 13. Nonetheless, I'll provide calculations based on the given A = 13.

To calculate the radius of the nucleus, we can use the empirical formula:

Radius = r0 * A^(1/3)

Where r0 is a constant equal to approximately 1.2 femtometers (1.2 fm).

Radius = 1.2 fm * 13^(1/3)

Radius ≈ 2.72 fm

To calculate the mass of the nucleus, we need to consider the mass of individual protons and neutrons. The atomic number (A) represents the total number of protons and neutrons in the nucleus.

Mass = A * mass of one nucleon

The mass of one nucleon (proton or neutron) is approximately 1.67 x 10^(-27) kilograms.

Mass = 13 * (1.67 x 10^(-27) kg)

Mass ≈ 2.17 x 10^(-26) kg

To calculate the volume of the nucleus, we can use the formula for the volume of a sphere:

Volume = (4/3) * π * Radius^3

Volume = (4/3) * π * (2.72 fm)^3

Volume ≈ 108.4 cubic femtometers (fm^3)

Please note that the given value for the atomic number (A = 13) is unusual for carbon. Normally, carbon has an atomic number of 6.

for more such questions on nucleus

https://brainly.com/question/5223117

#SPJ11

Answer:

Nature friendly activities include:

Hope it helps!

Answer:

A) the NaI solution will have a higher boiling point than the KI solution

Explanation:

We must have it behind our minds that the addition of a solute to water elevates the boiling point of water.

Boiling point elevation is a colligative property. It depends on the amount of solute present.

We know that;

ΔTb = Kb m i

Where;

ΔTb = boiling point elevation

Kb = boiling point constant

m = molality

i = Van't Hoff factor

Since KI and NaI has the same number of particles(two particles each), the boiling point elevation (ΔTb) depends on the molality of each solution. The molality also depends on the molar mass of each substance. The molality of NaI is greater than the molality of KI hence the boiling point NaI is greater than the boiling point of KI.

So;

200mL of water = 200g of water

Mass of solvent = 200g/1000 = 0.2 Kg

Molality of NaI = 5g/150 g/mol * 1/0.2 = 0.167 m

molality of KI = 5g/166 * 1/0.2 = 0.151 m

Kb for water = 0.512 oC m-1

Boiling point of water = 100 oC

Let the boiling point of NaI be A

A - 100 = 0.512 *  0.167  * 2

A = (0.512 *  0.167  * 2) + 100

A = 100.171 oC

Let the boiling point of KI be B

B - 100 = 0.512 * 0.151  *  2

B = (0.512 * 0.151  *  2) + 100

B = 100.154 oC

Hence;

Boiling point of NaI > Boiling point of KI

The composition of the sigma bonds in methane i.e. the atomic orbits comprise the molecular orbit is σsp³-sp³

Methane is a one-carbon compound in which carbon is attached to four hydrogen atoms by single bonds. It is colorless, odorless, non-toxic, but a flammable gas (bp -161°C). It serves as a fossil fuel, a member of greenhouse gases, and a bacterial metabolite. In the methane molecule, a carbon atom forms covalent bonds with four different hydrogen atoms. There are no lone pairs of electrons in carbon atoms. So the 4 hydrogen atoms are at the 4 corners of the tetrahedron and the carbon is at the center of the tetrahedron. Hybridization in the methane molecule occurs by mixing one orbital with three p-orbitals. Each orbital consists of an unpaired electron. Carbon's s orbital and three p orbitals overlap with her 1s orbital of hydrogen to form a bond. Therefore, methane hybridizes to sp3 resulting in tetrahedral geometry. The methane molecule is non-polar. In particular, the dipole moment of methane is zero. A dipole moment of zero means that the "center of negative charge" in the molecule corresponds to the "center of positive charge".

To know more about methane, visit:

https://brainly.com/question/28933327

#SPJ1

Answer:

1 cl =10 ml

so

4.22cL= 4.22×10= 42.2 mL

there is a change from vapour to liquid

The change in enthalpy of the system -1.67 x \(10^4\) J

Given the data contains,

The mass of the sample is 348g.

The initial temperature is 127 \(^oc\).

The final temperature is  103 \(^oc\).

The change in temperature is calculated as,

ΔT = T2 - T1

ΔT = 103 - 127 = -24\(^oc\)

The change in temperature is -24\(^oc\).

The heat content of the system is calculated as,

q = mc ΔTq = 348 x 2.010 x (-24)

q = -1.67 x \(10^4\) J

Temperature, a measure of hotness or coldness, expressed on one of several arbitrary scales, indicating the direction in which thermal energy  spontaneously flows—that is, from a hotter body. Temperature does not correspond to the energy of a thermodynamic system; e.g. a burning match is at a much higher temperature than an iceberg, but the total thermal energy of an iceberg is much greater than the energy contained in a volcano.

To learn more about temperature, visit;

https://brainly.com/question/23411503

#SPJ10

The temperature at the top of an atmosphere consisting of an ideal gas with constant density can be found using the ideal gas law, which states that PV = nRT, where P is the pressure, V is the volume, n is the number of moles, R is the ideal gas constant, and T is the temperature.

Assuming the density of the gas is constant throughout the atmosphere, we can express the pressure as P = ρgh, where ρ is the density, g is the acceleration due to gravity, and h is the height.

Since the atmosphere is homogeneous, the pressure at the top (P_top) is the same as the pressure at the bottom (P_bottom), so we have P_top = P_bottom = ρgh.

Using the ideal gas law, we can write ρghV = nRT, where V is the volume of the gas.

Assuming the volume of the gas is constant, we can cancel out V, and rearranging the equation, we get T_top = (nRT_bottom)/(nR) = T_bottom.

Therefore, the temperature at the top of the atmosphere would be the same as the temperature at the bottom.

In practice, however, it is not possible for an atmosphere to have constant density all the way to the top. As we go higher in the atmosphere, the density decreases due to decreasing pressure and temperature. This is because gravity becomes weaker at higher altitudes. Therefore, in reality, the temperature would decrease as we move higher in the atmosphere.

So, while a homogeneous atmosphere with constant density all the way to the top cannot exist in practice, it can be considered as an idealized scenario for understanding certain aspects of atmospheric behavior.

Learn more about ideal gas law, here :-

https://brainly.com/question/30458409

#SPJ11

The energy released when 100.0 g of steam at 110.0 °C are converted into ice at minus 30.0 °C is 1.56 × 10^6 J.

To calculate the energy released, we need to determine the amount of heat energy required to cool the steam to 0 °C, then the amount of heat energy required to freeze the water, and finally the amount of heat energy to cool the ice to -30 °C.

First, we calculate the amount of heat energy required to cool the steam from 110.0 °C to 0 °C using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity of steam and ΔT is the change in temperature. The specific heat capacity of steam is 2.01 J/g °C.

Q1 = (100.0 g) × (2.01 J/g °C) × (110.0 °C – 0 °C) = 22,242 J

Next, we calculate the amount of heat energy required to freeze the water at 0 °C using the formula Q = mL, where Q is the heat energy, m is the mass and L is the latent heat of fusion of water. The latent heat of fusion of water is 334 J/g.

Q2 = (100.0 g) × (334 J/g) = 33,400 J

Finally, we calculate the amount of heat energy required to cool the ice from 0 °C to -30 °C using the formula Q = mcΔT, where Q is the heat energy, m is the mass, c is the specific heat capacity of ice and ΔT is the change in temperature. The specific heat capacity of ice is 2.06 J/g °C.

Q3 = (100.0 g) × (2.06 J/g °C) × (0 °C – (-30.0) °C) = 6,180 J

The total energy released is the sum of the three values calculated above:

Qtotal = Q1 + Q2 + Q3 = 22,242 J + 33,400 J + 6,180 J = 61,822 J = 1.56 × 10^6 J.

Learn more about heat energy here.

https://brainly.com/questions/29210982

#SPJ11

Penicillin is stable for 24 hours in aqueous solution having a pH of 6.5
in this case is chemical Incompatibility given

Penicillin is a drug that is known to be pH sensitive. In this scenario, the stability of penicillin in an aqueous solution is dependent on the pH level of the solution. Penicillin is stable for 24 hours in an aqueous solution with a pH of 6.5, but at a pH of 3.5, it quickly degrades in less than an hour. This means that the chemical makeup of the penicillin is altered at a pH of 3.5, resulting in its degradation

The incompatibility of penicillin is due to its chemical sensitivity to pH. It is important to note that any medication that is pH sensitive must be stored and administered in a manner that ensures the pH level is within the acceptable range to maintain its stability and effectiveness.

To know more about pH visit:

brainly.com/question/28580519

#SPJ11

Explanation:

Any orbital can hold a maximum of 2 electrons with opposite spin. The first shell has one 1s orbital and holds 2 electrons. The second shell holds 8 electrons; 2 in a 2s orbital and 6 in three 2p orbitals. The third shell holds 18 electrons; 2 in a 3s orbital; 6 in three 3p orbitals; and 10 in five 3d orbitals.

In an atom which contains all the shells up to 3s filled, there will be 12 electrons.

According to the Aufbau principle, the s sub-shell can contain 2 electrons and the p sub-shell can contain 6 electrons.

The atom in which the shells up to 3s are filled, must have 1s, 2s, 2p and 3s orbitals filled.

Therefore, the total number of electrons present in the atom = number of electrons present in 1s + number of electrons in 2s + number of electrons in 2p + number of electrons in 3s.

Total number of electrons in the atom = 2 (electrons from 1s) + 2 (electrons from 2s) + 6 (electrons from 2p) + 2 (electrons from 3s).

Total number of electrons in the atom = 12

So, an atom which has all the shells up to 3s sub-shells filled contains 12 electrons.

Learn more about electrons here:

brainly.com/question/12001116

#SPJ3

The Styrene has the empirical formula CH with a molar mass of 104. 13 g/mol. The number of hydrogen atoms are present in a 52 g sample of the styrene is 4.63 × 10²² H atoms.

The Empirical formula of styrene  CH

The molecular formula = n(empirical formula)

n = 8

The Molecular formula of styrene = C₈H₈

1 mol of styrene has the 8 moles of the C and the 8 moles of H and the 1 mol .

The molecular mass =  104.13 grams.

104.14 g (1 mol of C₈H₈) have the 8 moles of H

Moles of 52 g  =  (52 × 8) / 104.13

                        = 3.99 moles

1 mole of  particles=  6.02×10²³ atoms

The number of hydrogen atoms=  3.99 mol . 6.02×10²³ atoms / 1 mol

                                                     = 4.63 × 10²² H atoms.

To learn more about empirical formula here

https://brainly.com/question/14044066

#SPJ4

-1.09'C is the change in freezing point

“Freezing point depression” depends on the solvent and the molar concentration of the solute.

Sulfide is highly basic, consequently

K2S

completely and irreversibly hydrolyzes in water according to the following equation:

K2S+H2O→KOH+KSH

Freezing, also known as solidification, is a phase transition where a liquid turns into a solid when its temperature is lowered below its freezing point.

the temperature at which a liquid solidifies specifically : the temperature at which the liquid and solid states of the substance are in equilibrium at atmospheric pressure : melting point the freezing point of water is 0° Celsius or 32° Fahrenheit.

Learn more about change in freezing point here:https://brainly.com/question/23035406

#SPJ10

Answer:1.0881

Explanation:

Answer:

The particles did not have a positive charge.

a)  The exponential decay rate of the chemical is approximately 0.2310 per hour. The exponential decay rate can be determined using the formula:

decay rate (k) = ln(2) / half-life

Given that the half-life is approximately 3 hours, we can calculate the decay rate:

decay rate (k) = ln(2) / 3

decay rate (k) ≈ 0.2310 (rounded to four decimal places)

Therefore, the exponential decay rate of the chemical is approximately 0.2310 per hour.

b) To determine how long it will take for 97% of the chemical to leave the body, we can use the exponential decay formula:

amount remaining = initial amount × \(e^(-kt)\)

We want to find the time when the amount remaining is 97% of the initial amount. Thus, we can rewrite the equation as:

0.97 = \(e^(-kt)\)

Taking the natural logarithm (ln) of both sides:

ln(0.97) = -kt

Solving for t:  t = -ln(0.97) / k

Substituting the previously calculated decay rate:

t ≈ -ln(0.97) / 0.2310

Using a calculator, we find:

t ≈ 10.152 (rounded to three decimal places)

Therefore, it will take approximately 10.152 hours for 97% of the chemical consumed to leave the body.

To know more about Exponential decay visit-

brainly.com/question/2193799

#SPJ11

Answer:

Explanation: The best-supported theory of our universe's origin centers on an event known as the big bang. This theory was born of the observation that other galaxies are moving away from our own at great speed in all directions as if they had all been propelled by an ancient explosive force.

3D view of H3O+

The stronger line means that the Hydrogen is closer to us in a 3D view, meanwhile the line with traces, or you cal also see as a weaker line, it means that the Hydrogen is farther from us in a 3D view

Lewis Structure of H3O+

The question requires us to calculate the amount of vapor water produced as a by-product when 66g of carbon dioxide are obtained from the combustion of propane.

Considering the combustion of propane (C3H8), we have the following reaction:

IFrom the reaction, we can see that the stoichiometric relationship between C3H8 and water (H2O) is as follows:

2 mol C3H8 ---------- 8 mol H2O

Then, to calculate the amount of water produced as a by-product, we'll need to determine the amount of reactant needed to produce 66g of CO2.

Since the molar mass of CO2 is 44g/mol and considering the reaction written above, we can write:

2 mol C3H8 ---------- 4 mol CO2

x ---------- (66g/44g) = 1.5 mol CO2

Solving for x, we have that 0.75 mol of C3H8 are required to produce 66g of CO2.

Now, we calculate the amount of water that should be obtained from 0.75 mol of C3H8:

2 mol C3H8 ---------- 8 mol H2O

0.75 mol C3H8 ----- y

Solving for y, we have that 3 moles of water will be obtained as a by-product.

At last, we convert the calculated amount of vapor water into its volume considering the Standard Temperature and Pressure conditions (STP), where 1 mol of a gas corresponds to 22.4 L of the same gas:

1 mol vapor H2O ---------- 22.4 L vapor H2O

3 mol vapor H2O --------- z

Solving for z, we have that 67.2 L of vapor water will be obtained as a by-product when 66g of CO2 are produced from the combustion of propane.

A motorist will be able to hear the sound the least through a soundproof wall, hear it the most across a big empty space, and hear it the least through trees because they take longer to dampen a sound.

Sounds bends vertically upward during the day because the earth is hotter than that of the air above it.

Roadway sound is the total sound energy produced by moving cars.Road surface, tyre, engine/transmission, aerodynamic, and brake components make up the majority of it.

To know more about Transportation visit:

https://brainly.com/question/29851765

#SPJ4

endpointVinegar is also called as acetic acid, and we can write it in the following way CH3COOH. When we talk about titration, it refers to the amount of base needed to neutralize the acid. So there is a chemical reaction involved. The reaction between vinegar and NaOH base is as follows:

We have a 1 to 1 ratio, i.e. to neutralize x moles of vinegar we need the same moles of NaOH. Let's calculate how many moles of acid are believed to be in the solution. We will use the molarity = 0.78M = 0.78 mol/L.

Then we need 0.016 moles of NaOH, the volume required will be:

So, the volume that would be needed of NaOH to see an end point is 17.23 mL

Answer:

Electricity can be present in a static charge, while magnetism's presence is only felt when there are moving charges as a result of electricity. In simple words, electricity can exist without magnetism, but magnetism cannot exist without electricity.





HOPE THIS HELPS, HAVE A GREAT DAY!!~

Explanation:

Answer:

Because of the summer season

Explanation:

The water in the dish which is uncovered will evaporate faster as compared to the one which is

covered. This is because the air above the uncovered dish has less water vapour over it as

compared to the one which is covered. The covered dish has good amount of moisture over it as

the closed lid does not allow the moisture to come in direct contact with air.