Type the correct answer in the box. express your answer to three significant figures. an air mattress is filled with 0.55 moles of air. the air inside the mattress has a temperature of 295 k and an absolute pressure of 3.5 kilopascals. what is the volume of the air mattress? the volume of the air mattress is liters.

At STP, the volume of water that is produced is 134.4 L.

Now we know that the equation of the reaction is;

2C6H6(g) + 15O2(g) = 12CO2(g) + 6H2O(g)

We can use the stoichiometry of the reaction to determine the volume of the water produced as follows;

2 mole of C6H6 produced 6 moles of water. If 1 mole of water occupies 22.4 L then 6 moles of water will occupy 6 * 22.4 L = 134.4 L

Thus, we can see that at STP, the volume of water that is produced is 134.4 L.

Learn more about stoichiometry:https://brainly.com/question/9743981

#SPJ1

Answer:

Isopropyl alcohol or  Propan-2-ol

Explanation:

Hope it  helps!

The empirical formula of copper oxide is Cu2O.

Mass of copper oxide (CuO) = 1.0541 g

Mass of copper (Cu) = 0.9350 g

Mass of oxygen (O) = 0.1191 g

The empirical formula of copper oxide (CuO) can be calculated as follows:

Mass of Cu = 0.9350 g

The molar mass of Cu = 63.55 g/mol

Number of moles of Cu = (0.9350 g) / (63.55 g/mol) = 0.0147 mol

Mass of O = 0.1191 g

The molar mass of O = 16.00 g/mol

Number of moles of O = (0.1191 g) / (16.00 g/mol) = 0.0074 mol

The ratio of Cu to O = 0.0147 mol / 0.0074 mol = 1.99 (approx.)

The empirical formula is the smallest whole number ratio between Cu and O, which is Cu₂O.

know more about empirical formula here : https://brainly.com/question/32799546

#SPJ11

Among the compounds you listed, only Al2O3 (aluminum oxide) will form a unit cell similar to K3P (potassium phosphide).

K3P is an ionic compound composed of potassium cations (K+) and phosphide anions (P3-). It crystallizes in a cubic unit cell with a specific arrangement of ions.

Al2O3, also known as alumina, is another ionic compound that forms a crystal lattice structure. It consists of aluminum cations (Al3+) and oxide anions (O2-). Al2O3 can crystallize in different crystal structures, such as the corundum structure or the spinel structure, depending on the conditions.

The other compounds you listed (Na3N, Li2S, Ki, CaBr2) do not have the same ionic composition or structure as K3P. Therefore, their unit cells would be different from K3P.

To learn more about aluminum visit;

https://brainly.com/question/28989771

#SPJ11

Answer:

The Eukaryotic cell that the organelle shows below belongs to the Nucleus.

Explanation:

In fact, the mere presence of a nucleus is considered one of the defining features of a Eukaryota cell.

Answer:

I think iron sorry if its wrong goodluck!

I'm pretty certain the answer is 2) because fluorine is a diatomic gas meaning it travels with 2 molecules (simplified). It is a gas so molecules should also be spread out so the answer cannot be 3) or 4).

Hope this helps! :)

Fluorine is a halogen that is the lightest and is highly toxic. Moreover, it exists in diatomic state.

Thus, it can be concluded that the particle diagram 2 best represents the fluorine gas in the given temperature and pressure.

Hence, the correct answer is option 2.

https://brainly.com/question/1940697

Answer:

15 g

Explanation:

1. According to the Law of Conservation of Mass, the sum of the products should be 105 g because 70 g + 35 g = 105 g.

2. If 90g of solution was produced and there's supposed to be 105 g, then the remaining grams would be equal to the mass of the gas.

3. 105 g - 90g = 15 g

The potential of a cell that uses bromine to oxidize hydrogen to H under standard conditions at 298 K is 1.087 volts.

Under standard conditions, a cell's potential is determined by the difference in reduction potentials between the cathode (reduction) and the anode (oxidation). In this case, bromine is the oxidizing agent and hydrogen is the reducing agent. The standard reduction potential for bromine (Br2) to bromide ions (Br-) is +1.087 V, and the standard reduction potential for hydrogen ions (H+) to hydrogen gas (H2) is 0 V. To calculate the cell potential, we subtract the anode's reduction potential from the cathode's reduction potential:

E_cell = E_cathode - E_anode
E_cell = (+1.087 V) - (0 V)
E_cell = 1.087 V

Therefore, the potential of a cell that uses bromine to oxidize hydrogen to H under standard conditions at 298 K is 1.087 volts. This value indicates the driving force for the redox reaction to occur in the electrochemical cell and is essential for calculating the cell's energy output and efficiency.

Know more about Cell Potential here:

https://brainly.com/question/1313684

#SPJ11

A cell that uses bromine to oxidize hydrogen under standard conditions at 298 K would have a standard cell potential (E°) determined by the reduction potentials of the half-reactions involved. In this case, the half-reactions are:

1. Bromine reduction: Br2 + 2e- -> 2Br- (E° = +1.07 V)
2. Hydrogen oxidation: H2 -> 2H+ + 2e- (E° = 0 V)

To find the overall cell potential, subtract the E° of the oxidation half-reaction from the E° of the reduction half-reaction:

E°(cell) = E°(reduction) - E°(oxidation)
E°(cell) = (+1.07 V) - (0 V)
E°(cell) = +1.07 V

So, the potential of the cell under standard conditions at 298 K is +1.07 volts.

Know more about standard cell potential, here:

https://brainly.com/question/31737961

#SPJ11

Answer:

Claims based on vague statements and statements from non-experts.

Explanation:

Answer:

Density of the rectangular object = 4 / 6 = 0.67g/cm³

Explanation:

First find the volume of the rectangular object.

Volume of the rectangular object = 3 x 2 x 1 = 6cm³.

Density of an object = mass of the object / volume of the object

Therefore,

Density of the rectangular object = 4 / 6 = 0.67g/cm³

Answer:

c....

Explanation:

hope its help...

correct me if im wrong:>

Is he strong enough to lift a 5.3kg weight?

Answer: A. No

Explanation: Obviously, a rooster is not strong enough to lift a 5.3kg weight because a normal rooster would weigh 10kg.

2--is called a ligand. A ligand is a small molecule that specifically binds to another molecule, often a larger one, in order to regulate its activity or function.

Ligands can be hormones, neurotransmitters, enzymes, or other biomolecules that bind to receptors on the surface of cells or inside the cell. Ligand-receptor binding can initiate a variety of signaling pathways that lead to changes in cell behavior, such as the activation or inhibition of enzyme activity, changes in gene expression, or the activation of second messenger systems. Ligands play important roles in many physiological processes, including the regulation of heart rate, blood pressure, and immune function. They can also be used as drugs to target specific receptors and modulate their activity in the treatment of various diseases.

Read more on ligands on https://brainly.com/question/12449406

#SPJ4

Solid particles have the least kinetic energy because they are unable to move due to their dense packing.

The second lowest kinetic energy for gases is found in argon and nitrogen, both of which are at a temperature of 20°C. This is because particle at the same temperatures share the same average kinetic.The maximum average kinetic energy is found in nitrogen and helium at a temperature of 100 °C.

Solid-state molecules contain the least energy, whereas gas particles have the greatest.The heat of a substance is used to calculate the average particle kinetic energy.

To know more about kinetic energy visit:

https://brainly.com/question/26472013

#SPJ4

Using the change of base rule to find the logarithm to four decimal places. the correct answer is 11.4235.

To find the logarithm of 143.2 using the change of base rule, we can choose any base we prefer. Let's use base 10 and natural logarithm (base e) for this calculation.

First, we'll use the change of base formula, which states that log(base b) x = log(base c) x / log(base c) b. In this case, we'll calculate log(base 10) 143.2.

We'll use the natural logarithm (ln) as our intermediary step. The natural logarithm of 143.2 can be calculated as ln(143.2).

Using a calculator, we find that ln(143.2) is approximately 4.9628.

Next, we need to calculate log(base 10) e, which is the logarithm of e with base 10. Using a calculator, we find log(base 10) e is approximately 0.4343.

Finally, we apply the change of base formula:

log(base 10) 143.2 ≈ ln(143.2) / log(base 10) e
                ≈ 4.9628 / 0.4343
                ≈ 11.4235

Rounding to four decimal places, the logarithm of 143.2 using base 10 is approximately 11.4235.

Learn more about logarithm here :-

https://brainly.com/question/30226560

#SPJ11

Answer:

A glucose molecule is made up of 6 Carbon atoms, 12 Hydrogen atoms, and 6 Oxygen atoms. This is a 1:2:1 ratio. Hopefully, this helps!

Explanation:

The balanced half-reaction:

The reactant H₂O₂(aq) is oxidized to form O₂(g) and 2OH-(aq).

The hydroxide ions (OH-) act as the reducing agent, accepting the electrons lost by hydrogen peroxide.

The balanced half-reaction for the oxidation of aqueous hydrogen peroxide (H₂O₂) to gaseous oxygen (O₂) in a basic aqueous solution can be represented as follows:

H₂O₂(aq) -> O₂(g) + 2OH-(aq)

This equation represents the oxidation of hydrogen peroxide, where it loses electrons and forms oxygen gas. In the basic solution, hydroxide ions (OH-) are present to balance the charges in the reaction.

Therefore,

In the balanced half-reaction:

The reactant H₂O₂(aq) is oxidized to form O₂(g) and 2OH-(aq).

The hydroxide ions (OH-) act as the reducing agent, accepting the electrons lost by hydrogen peroxide.

Know more about half-reaction:

https://brainly.com/question/18403544

#SPJ12

The pH at the equivalence point of a weak base-strong acid titration can be determined using the Henderson-Hasselbalch equation.

In this case, the weak base is sodium hypochlorite (NaOCl), and the strong acid is hydrochloric acid (HCl). Given that 20.00 mL of NaOCl requires 28.30 mL of 0.50 M HCl, we can calculate the moles of HCl used. The balanced chemical equation for the reaction between NaOCl and HCl is: NaOCl + HCl → HClO + NaCl. Since the molar ratio between NaOCl and HCl is 1:1, the moles of HCl used is equal to the moles of NaOCl used. By dividing the moles of HCl used by the total volume of the NaOCl solution (20.00 mL), we can determine the concentration of HCl. Next, we can use the dissociation constant (Ka) of HClO (the conjugate acid of NaOCl) to calculate the concentration of HClO at the equivalence point. From the balanced chemical equation, we know that one mole of NaOCl reacts with one mole of HCl to form one mole of HClO. Therefore, the concentration of HClO is equal to the concentration of HCl at the equivalence point. Finally, using the Henderson-Hasselbalch equation, we can calculate the pH at the equivalence point by plugging in the values for the concentration of HClO and the Ka of HClO. It is important to note that in this specific case, the concentration of HClO will be very low due to the weak acid nature of HClO. Consequently, the pH at the equivalence point will be acidic.

Learn more about Henderson-Hasselbalch equation here:

https://brainly.com/question/31495136

#SPJ11

In this instance, the equilibrium concentration of Cu⁺ with 0.10 M Br⁻ is similarly 0.10 M.

To determine the concentration of Cu⁺ in equilibrium with CuBr(s) and 0.10 M Br⁻, we need to consider the solubility equilibrium of CuBr.

The solubility equilibrium for CuBr can be represented as follows:

CuBr(s) ⇌ Cu⁺(aq) + Br⁻(aq)

The solubility product constant (Ksp) expression for this equilibrium is:

Ksp = [Cu⁺][Br⁻]

Since the stoichiometry of the reaction is 1:1 between Cu⁺ and Br⁻, the concentration of Cu⁺ in equilibrium will be equal to the concentration of Br⁻.

Therefore, in this case, the concentration of Cu⁺ in equilibrium with 0.10 M Br⁻ is also 0.10 M.

To know more about the equilibrium concentration refer here :

https://brainly.com/question/32070728#

#SPJ11

The concentration of Cu+ in equilibrium with solid CuBr and 0.10M Br- is 7.9 x 10-5 M. This happens due to the common ion effect, which is the presence of extra Br- ions in solution that suppress the dissolution of CuBr.

You are asked to find the concentration of Cu+ in equilibrium with solid CuBr and 0.10M Br-. The solubility product constant (Ksp) defines the equilibrium between a solid and its constituent ions in a solution. The balanced equation for this dissolution process is:

CuBr(s) <==> Cu+ (aq) + Br- (aq)

For CuBr, the Ksp value is 7.9 x 10-5 M. This represents product of concentrations of its ions in the solution. However, we already have 0.10M Br-, which is much higher than that provided by the dissolution of CuBr. Therefore, the Cu+ concentration in equilibrium is essentially equal to the Ksp, i.e. 7.9 x 10-5 M.

Here, the concept of the common ion effect comes into play. The presence of extra Br- ions from the solution suppresses the dissolution of CuBr, thereby controlling the Cu+ concentration in the solution.

https://brainly.com/question/34264585

#SPJ12

At a starting temperature of 13.00 degrees Celsius, a 295 g aluminium engine component absorbs 75.0 kJ of heat. The component's ultimate temperature is 296.7 °C.

The following equation can be used to solve this problem:

Q is the amount of heat absorbed, m is the mass of the aluminium component, c is the material's specific heat, and T is the temperature change.

We are aware that the starting temperature is 13.00 degrees C, Q = 75.0 kJ, and m = 295 g. Aluminium has a specific heat of 0.902 J/g°C, which may be found by looking it up.

In the beginning, we must change the mass into kilogrammes and the heat into joules:

m = 0.295 kg

Q = 75.0 kJ = 75,000 J

The equation may now be rearranged to account for ΔT:

ΔT = Q / (mc)

ΔT = 75000 J/(0.295 kg x 0.902 J/g °C)

ΔT=283.7 degrees Celsius

By multiplying the beginning temperature by the temperature change, we can finally determine the final temperature:

T final = 13,000 °C plus 283,7 °C.

T final = 296.7 °C

As a result, the aluminium part's final temperature is 296.7 °C.

Learn more about specific heat  here

https://brainly.com/question/28302912

#SPJ11

Answer:

A few elements combine to make many compounds.

Explanation:

The heading of the reading is 'Few elements, many Compounds'. The reading has focused on the process involved in the formation of elements and compounds. In the Hawaiian Islands the elements are found in abundance. These elements combine together to form compounds. The mountains, greenery, rocks and living matter are made up of many elements and compounds. The elements present helps in forming various compounds.

Answer:

Lithium = 3 electrons (Neutral atom)

Potassium = 19 electrons

Correct Question:-

How many outermost shell/orbit contains electrons do lithium and potassium have.

Lithium Atomic number - 3

Ans :- 1 electron

(K -2 , L - 1)

potassium Atomic number - 19

Ans :- 1 electron

(K - 2 , L - 8 , M - 8, N -1)

Answer:

a closed series circuit

Answer:

An open series circuit

Explanation:

I'm late but for future people...

I took the test.

Answer:

Oxygen is the most abundant element in the Earth's crust.

Explaination: It makes up 46% of the mass of the Earths crust.

Answer

The most abundant elements in the human body are oxygen, carbon and hydrogen. Oxygen makes up 65% of the body.

Answer:

carbon...?

Explanation:

Answer:

Carbon

Explanation:

Carbon makes up most of the building blocks of life.  Hope that is right. Good luck

Answer:

The answer is A. An added force of 20 N to the side of the hill

Explanation:

Answer:Its A. An added force of 20 N down the hill, Not D. An added force of 20 N to the side of the hill. The first person meant A and meant to add force of 20 N down the hill.

Explanation:

Answer:

i needed that lol

thank you

Explanation: