The decomposition of 65.9 g ammonium nitrate yields how many liters of dinitrogen monoxide at 2.65 atm and 303 k?

(N= 14.01 g/mol, H= 1.008 g/mol, O=16.00 g/mol)
NH4NO3(s) -> N2O(g)+2H2O(g)

Hint: R = 0.0821 L atm/(mol K)

Answer:52!

Explanation:

Using the expression of Clausius-Clapeyron equation we can calculate the vapor pressure. Putting all the values in the expression we get the result.

The vapor pressure can be defined as the force that an evaporating substance exerts against the walls of a sealed container. ln (P1/P2) = (ΔHvap. /R) (1/T2 - 1/T1). where, P1 and  P2 are the vapor pressures at two temperatures T and T2 . A solution made from 23.5 g of glycerin in 130 g of methanol at 50 °C. The vapor pressure of pure methanol at 50 °C is 400 torr. Clausius-Clapeyron equation allows to estimate the vapor pressure at another temperature if the vapor pressure is known at some temperature and if the enthalpy of vaporization is known. The partial vapor pressure of a component in a mixture is equal to the vapor pressure of the component at that temperature multiplied by the component's mole fraction.

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Answer:

a.cocentration es la respuesta

i mean my mom takes all my electronics at night.

1) Grams of lead.

Convert grams of lead (II) nitride to moles of lead (II) nitride

Convert moles of lead (II) nitride into moles of Pb

Convert moles of Pb into grams of Pb

There is 31.64 g of ions of lead in the sample of paint.

The volume of air inside a 40.0 L tire under 218 kPa of pressure that would occupy at 101.3 kPa pressure is 86.1 L.

To calculate the volume of air inside a 40.0 L tire under 218 kPa of pressure that would occupy at 101.3 kPa pressure, we can use the following formula, known as Boyle's law:

P₁V₁ = P₂V₂

where P₁ is the initial pressure, V₁ is the initial volume, P₂ is the final pressure, and V₂ is the final volume.

In this case, we know:

P₁ = 218 kPa

V₁ = 40.0 L

P₂ = 101.3 kPa

V₂ = ?

Now we can rearrange the formula to solve for V₂:

V₂ = (P₁ x V₁) / P₂

Substituting the values, we get:

V₂ = (218 kPa x 40.0 L) / 101.3 kPa

= 86.1 L

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True. Xanthochromic cerebrospinal fluid (CSF) may appear pink, orange, or yellow. Xanthochromia is a discoloration of CSF that occurs due to the presence of bilirubin and other breakdown products of red blood cells.

It is commonly seen in cases of subarachnoid hemorrhage, where there is bleeding in the space around the brain. The color of xanthochromic CSF may vary depending on the amount of time that has passed since the bleeding occurred. In the early stages, the fluid may appear pink, but over time, it may become more orange or yellow. Xanthochromic cerebrospinal fluid (CSF) may appear pink, orange, or yellow. Xanthochromia is a discoloration of CSF that occurs due to the presence of bilirubin and other breakdown products of red blood cells. The presence of xanthochromic CSF is an important diagnostic clue for subarachnoid hemorrhage and should prompt further investigation. It is typically detected through a lumbar puncture procedure, which involves collecting a sample of CSF from the lower back. Overall, the appearance of xanthochromic CSF is an important sign that should not be ignored and warrants prompt evaluation by a healthcare provider.

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One thousand feet of the same wire have a resistance of 1333.3 ohm.

A is the ideal answer.

The readout should remain steady at about 1 ohm. Two or three ohms is still OK, but if one of your cables displays significantly higher readings than the others (of equal length), you should make sure that all of its conductors actually make optimal contact with the terminals in each plug.

The resistance of a wire is inversely related to its cross-sectional area and directly proportional to its length.

R = ρ × L / A.

R = 500 /375 *1000

R = 1,333 ohms

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Answer:

Solution

verified

Verified by Toppr

Correct option is B)

In sp

3

d type of hybridisation, shape of molecule is trigonal bipyramidal and bond angle will be of 120

o

Answer:

1.5 hours or 90 minutes

Explanation:

Velocity = d/t

V = 64 mi / hour or 96 mi / 9 min OR 16 mi / 15 min

D = 96 miles

Velocity * Time = Distance

Time = Distance / Velocity

T = 96 mi / 64 mi / hour

96 / 64 = 1.5 mi per hour

T = 1.5 hours or 90 minutes

Studies on amphibian oocytes showed that MPF or maturation promoting factor is E. all above.

Amphibian oocytes are specialized cells that undergo meiosis to produce eggs. However, research on amphibian oocytes has revealed that MPF is not involved in regulating the cell cycle in these cells. Instead, MPF levels fluctuate depending upon the stage of the cell cycle, and it is produced at a steady rate throughout the process. MPF triggers replication of chromosomes, which is necessary for cell division and the production of eggs.

Interestingly, MPF also inhibits maturation of oocytes until the appropriate time, ensuring that the eggs are properly formed before they are released. In summary, while MPF plays a critical role in cell cycle regulation in many organisms, its function in amphibian oocytes is more nuanced and involves fluctuating levels and timing of action. So the correct answer is E. all above .

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Charge distributions are very important in being able to determine the chemical reaction taking place which also allows for the determination of the structure of a product.

Charge distributions can provide important information about the electron density and bonding in a molecule or ion, which can help to predict its behavior and reactivity.

If the calculated charge distributions are consistent with the predicted resonance structures, this suggests that the resonance structures accurately represent the electronic structure of the molecule or ion.

In general, the relationship between charge distributions and predicted resonance structures can provide valuable insights into the electronic structure and behavior of a molecule or ion, and can help to guide experimental studies and further theoretical calculations.

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A super acid is defined as an acid with acidity greater than 100% pure H2SO4. It can also be defined as a medium in which the chemical potential of the proton is higher than in pure Sulphuric Acid.

Answer:

The answer must be B ig I hope its right ❤️

The temperatures describing the value of B is 100 °C, because it is the boiling point of water.Hence, The correct answer is Option (B)

What is Phase change ?

A phase change is when matter changes to from one state (solid, liquid, gas, plasma) to another.

These changes occur when sufficient energy is supplied to the b(or a sufficient amount is lost), and also occur when the pressure on the system is changed.

The given heating curve has two flat lines (Or plateaus) ;

In the given problem, C is the second flat line, so it is boiling point.

Therefore , The temperatures describing the value of B is 100 °C, because it is the boiling point of water.Hence, The correct answer is Option (B)

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The descriptor that best describes the relationship between the reactants and products is Decomposition.

Reactants are transformed into products during chemical reactions. The components that initiate a reaction are known as reactants, whereas the compounds that are produced as a result of that reaction are known as products.

CaO + CO2 = CaCO3

Calcium carbonate (CaCO3) breaks down into calcium oxide (CaO) and carbon dioxide (CO2) gas in this process.

The interaction between reactants and products in a chemical process can be described in a number of ways, including:

Conversion: The chemical process transforms the reactants into the products.

Synthesis: A single product is created when the reactants come together.

Decomposition: The breakdown of a single reactant into two or more products.

One or more reactants' components or functional groups are exchanged for another's, resulting in the formation of products.

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Complete question

consider the following reaction.

CaO + CO2 = CaCO3

The dotted arrow is a placeholder. select the descriptor that best describes the relationship between the reactants and products.

answer and explanation

1 L = 1000 mL

and so to determine 7.8L we can o the calculation as follows

x mL = 1000 mL/ 1 L x 7.8 L/1 = 7800 mL/1 = 7800 mL

The 40%  is the percentage of oxygen in the vessel.

What is pressure ?

As force applied per unit area, pressure is defined. P=FA, where F is the force operating perpendicular to the surface area A, gives it mathematical expression. The pascal (Pa), which equates to a newton per square metre (N/m 2), is the accepted unit of pressure.

What is partial pressure ?

The idea of partial pressure arises from the fact that each individual gas contributes a portion of the total pressure, and that portion is the partial pressure of that gas. In order to describe all the pieces, it is essentially like taking a percentage or fraction of the whole.

Therefore, The 40%  is the percentage of oxygen in the vessel.

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Answer:

An alkaline solution is another name for a solution that is basic. All alkali metals react readily with water to produce the metal hydroxide and hydrogen gas. The resulting solutions are basic.

An alkaline solution is another name for a solution that is base. All alkali metals react readily with water to produce the metal hydroxide and hydrogen gas. The resulting solutions are basic.

According to the Arrhenius concept, base is defined as a substance which yields hydroxyl ions on dissociation.These ions react with the hydrogen ions of acids to produce salt in an acid-base reaction.

Bases have a pH higher than seven as they yield hydroxyl ions on dissociation.They are soapy in touch and have a bitter taste.According to the Lowry-Bronsted concept, base is defined as a substance which accepts protons .Base react violently with acids to produce salts .Aqueous solutions of bases can be used to conduct electricity .They can also be used as indicators in acid-base titrations.

They are used in the manufacture of soaps,paper, bleaching powder.Calcium hydroxide ,a base is used to clean sulfur dioxide gas while magnesium hydroxide can be used as an antacid to cure acidity.

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The given structure is of formaldehyde an organic compound and it is acidic in nature.

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Answer:

Argon is an element on the periodic table. It is a member of the noble gasses, meaning that it is a monoatomic pure gas. In other words, argon gas particles are simply pure single atoms of argon. ... Finally, water is a polyatomic molecule H2O composed of two atoms of hydrogen and one atom of oxygen.

Explanation:

Answer:

im 13 too...

Explanation:

but i dont  have a phone and i cant see your pic. not that it matters to me.          

The correct answer is A. gas. Pressure has a significant impact on the solubility of gases in liquids.

According to Henry's Law, the solubility of a gas in a liquid is directly proportional to the pressure of the gas above the liquid. As pressure increases, the solubility of the gas in the liquid also increases. This is because an increase in pressure above the liquid increases the number of gas molecules colliding with the liquid's surface. These collisions result in more gas molecules dissolving in the liquid. On the other hand, pressure does not have a significant effect on the solubility of solids or liquids in liquids. This is because the solubility of solids and liquids in liquids is determined mainly by the chemical nature of the substances involved, temperature, and the presence of other solutes. The pressure exerted on the system has little impact on these factors.  In summary, pressure plays a crucial role in determining the solubility of gases in liquids, while its impact on the solubility of solids and liquids in liquids is negligible.

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Answer:

Calcium and magnesium sulphide react to form calcium sulphide and magnesium metal.

Explanation:

Ca + MgS → CaS + Mg

The reaction between calcium and magnesium sulfide produces calcium sulfide and magnesium metal. The balanced equation can be given as Ca + MgS → CaS + Mg.

An equation for just a chemical reaction is said to be balanced if both the reactants as well as the products have the same number of atoms and total charge for each component of the reaction. In other words, both side of the reaction have an equal balance of mass and charge.

Conservation of charge as well as mass, equation and reaction balance, etc. The components and outcomes of a chemical reaction are listed in an imbalanced chemical equation, but the amounts necessary to meet the conservation of mass are not specified. The reaction between calcium and magnesium sulfide produces calcium sulfide and magnesium metal. The balanced equation can be given as Ca + MgS → CaS + Mg.

Therefore, the balanced equation can be given as Ca + MgS → CaS + Mg.

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This galvanic cell has a standard cell potential of +1.16 volts. This favorable value denotes a spontaneous reaction in which electrons go from the Cu electrode to the Au electrode.

To find the standard cell potential for the galvanic cell Cu(s) | 1 M Cu(NO₃)₂(aq) || 1 M AuCl₃(aq) | Au(s), we need to compare the standard reduction potentials of the two half-reactions involved.

The reduction half-reaction occurring at the Cu electrode is:

Cu²⁺(aq) + 2e⁻ → Cu(s)      E° = +0.34 V

The reduction half-reaction occurring at the Au electrode is:

Au³⁺(aq) + 3e⁻ → Au(s)      E° = +1.50 V

To determine the overall cell potential, we subtract the reduction potential of the anode (Cu) from the reduction potential of the cathode (Au):

E°cell = E°cathode - E°anode

      = (+1.50 V) - (+0.34 V)

      = +1.16 V

Therefore, the standard cell potential for this galvanic cell is +1.16 volts. This positive value indicates that the reaction is spontaneous, and the electrons flow from the Cu electrode to the Au electrode.

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Answer:

CaC2 + 2H2O → C2H2 + Ca(OH)2

thats it

Explanation:

If Half- life of an isotope is 30 days and it was assumed that the person ate 100 Bq of isotope, there are 50 transformations in the stomach.

The radioactive decay of a sample of an isotope can be characterized by the half-life of that isotope. When a radioisotope undergoes decay, its nucleus becomes unstable, and it emits particles or energy to become more stable. The half-life of an isotope is the time it takes for half of the original sample to decay. The question states that the half-life of an isotope is 30 days, and the person ingested 100 Bq of isotope. It also says to calculate the number of transformations in the stomach using GI track model information .

Since the isotope has a half-life of 30 days, we can use the following formula to find the number of transformations in the stomach:` N = N₀ (1/2)^(t/T₁/₂)`where: N₀ = initial number of nuclei N = final number of nuclei (after time t)T₁/₂ = half-life of the isotope The isotope has a half-life of 30 days, so T₁/₂ = 30 days. The question doesn't specify how long the person has had the isotope in their stomach, so we'll assume it's been there for one half-life, or 30 days. Therefore, t = 30 days.

Substituting into the formula:` N = 100 (1/2)^(30/30)`Simplifying:` N = 100 (1/2)^1`Evaluating:`N = 50`So after 30 days in the stomach, the person would have 50 Bq of the isotope left. Therefore, the number of transformations in the stomach is the difference between the initial number of transformations (100 Bq) and the final number of transformations (50 Bq):`Number of transformations in stomach = 100 - 50 = 50 transformations. Therefore, there are 50 transformations in the stomach.

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Answer:

0.50M (1 sig. fig.)

Explanation:

The problem objective is 'Molarity (M)', so set up given data to reduce to moles per liter. That is ...

Molarity = moles Mg/Liters of solution = (48.6g/24.31g·mole⁻¹)/(4Liters) = 0.499794323M (calc. ans.) ≅ 0.5M (1 sig. fig.)