If you have any two gases in different containers that are the same size at the same pressure and same temperature, what is true about the moles of each gas?.

Answer: C

Explanation:

Answer:

Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. Iron, for example, combines with oxygen in the presence of water to form rust; chromium does not oxidize (Figure 2).

Explanation:

The concentration of hydronium ions in the solution with a pH of 4.8 is approximately 1.58 × 10⁻⁵M.

The pH of a solution is defined as the logarithm of the reciprocal of the hydrogen ion concentration  [H+] of the given solution.

It is expressed as:

pH = -log[ H⁺ ]

Given that; the pH of a solution pH = 4.8

Hydronium ion concentration OH⁻ = ?

Plug the given values into the above formula and solve for the  concentration of hydronium ions in the solution.

pH = -log[ H⁺ ]

\([ H^+] = 10^{(-pH)}\)

Plug in pH = 4.8

\([ H^+] = 10^{(-4.8)}\)

[ H⁺] = 1.58 × 10⁻⁵M

Therefore, the  concentration of hydronium ions is 1.58 × 10⁻⁵M.

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H2S has a pressure of 0.368 atm, while NH3 has a pressure of 0.325 atm.

According to the query, the equilibrium partial pressure of NH3 and H2S has the values PNH3 and PH2S. The air is separated in accordance with the numerical equilibrium of the partial pressures of ammonia and hydrogen sulphate. The sum will be as follows:

According to ammonium bisulfite, the NH4HS(s)⇄NH3(g)+H2S(g) reacts with NH3 to produce hydrogen sulphide and ammonia (g)

This reaction will occur at 25°C if K's p-value is 0.120. NH3 has a partial pressure of 0.325 atm, while H2S has a partial pressure of 0.368 atm.

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Answer:

Biology is the study of nature, like plants and animals, while anatomy is the study of the human body, like our bones and muscles.

Explanation:

Hope it helped!

Answer:

B

Explanation:

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change.

Malleability, Solubility, and Density are all characteristics that can be observed without changing the identity of the substance. Combustibility, on the other hand, refers to the tendency of a substance to burn as a result of fire or chemical reaction. This means it is a chemical property, because it describes the ability for a substance to undergo a specific chemical change.

Answer:

V2~0.4839M

Explanation:

We're going to use Boyles law to answer the question.

Boyle's law:

P1V1=P2V2

P1=151mmHg

P2=166mmHg

V1=0.532L

V2=?

V2=(P1 x V1)/P2

V2=(151 x 0.532)/166

V2~0.4839M

Hope it helps:)

Answer: C. unknown

Explanation: got it right on acellus

Answer:

The mass of sodium hydroxide will result in the same mass of sodium chloride.

The total mass of hydrochloric acid and sodium hydroxide will result in a lower total mass of sodium chloride and water

The mass of hydrochloric acid will result in the same mass of sodium chloride.

The total mass of hydrochloric acid and sodium hydroxide will result in the same total mass of sodium chloride and water

Explanation:

Answer:

The mass of sodium hydroxide will result in the same mass of sodium chloride.

The total mass of hydrochloric acid and sodium hydroxide will result in a lower total mass of sodium chloride and water

The mass of hydrochloric acid will result in the same mass of sodium chloride.

The total mass of hydrochloric acid and sodium hydroxide will result in the same total mass of sodium chloride and water

Explanation:

The frequency of a photon with an energy of 4.91 x 10⁻¹⁷ J is approximately 7.41 x 10¹⁶ Hz.

The energy (E) of a photon is given by the equation E = hf, where h is Planck's constant (6.63 x 10⁻³⁴ J·s) and f is the frequency of the photon. To find the frequency, we rearrange the equation to f = E/h.

Substituting the given values, we have f = (4.91 x 10⁻¹⁷ J) / (6.63 x 10⁻³⁴ J·s) ≈ 7.41 x 10¹⁶ Hz.

Therefore, the frequency of the photon is approximately 7.41 x 10¹⁶ Hz (option b).

For the second question, we need to use the Rydberg formula to determine the final level of the electron. The formula is given by 1/λ = R(1/n₁² - 1/n₂²), where λ is the wavelength of the photon emitted, R is the Rydberg constant (2.179 x 10¹⁸ J), and n₁ and n₂ are the initial and final energy levels, respectively.

Rearranging the formula, we have 1/n₂² = 1/λR + 1/n₁². Substituting the given values, we have 1/n₂² = 1/(3745 nm)(2.179 x 10¹⁸ J) + 1/(n₁)².

Simplifying the equation, we find 1/n₂² = 0.0002679 + 1/n₁². Comparing the equation with the given answer choices, we find that the final level of the electron is 5 (option a).

Therefore, the final level of the electron is 5 (option a).

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Answer:

i dont undersstand lol

Explanation:

Explanation:

bhag bhag aaya sheer

..........

The standard deviation of Juan's mean result:We know that Juan repeats the measurement four times, and the standard deviation of his measurements is 0.9 mg.

Let's assume that the four measurements that Juan takes are a, b, c, and d.The sample mean, x = (a + b + c + d)/4The variance of the sample is calculated as shown below:σ² (x) = [σ²(a) + σ²(b) + σ²(c) + σ²(d)] / nσ² (x)

= [0.9² + 0.9² + 0.9² + 0.9²]/4σ² (x)

= 0.81/4σ² (x)

= 0.2025σ(x)

= √0.2025σ(x)

= 0.45 mgHence, the standard deviation of Juan's mean result is 0.5 mg (rounded to one decimal place).To find out how many times Juan should repeat the measurement to reduce the standard deviation of x to 3, we use the following formula:σ (x) = σ / √nWhere σ (x) is the standard deviation of the sample mean, σ is the standard deviation of the population, and n is the sample size.

To find n, we use the following formula:n = (σ / σ (x))²n = (0.9 / 3)²n

= (1/3)²n

= 1/9n

= 0.1111The number of times Juan must repeat the measurement to reduce the standard deviation of x to 3 is 10 (rounded to a whole number).Answer:Standard deviation of Juan's mean result: 0.5 mg (rounded to one decimal place).Juan must repeat the measurement 10 times to reduce the standard deviation of x to 3.

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A first order process' rate constant, k, can be computed using the formula: k = 0.693/half-life.

A equation is a scientific statement indicating that two sums or values are equal, such as 6 x 4 = 12 x 2. When two or more components must be taken into account collectively in order to comprehend or describe the overall situation, this is known as an equation.

The meaning of an equation in algebra is a scientific statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two equations 3x + 5 and 14, which are separated by the 'equal' sign.

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Answer:

By the formula of current,

I = Q/t

I × t = Q

Q/I = t

Explanation:

A) t = Q / I

t = 6 / 0.5

t = 12 sec

B) t = Q / I

First we,

36mA

36 / 1000

0.036A OR 3.6 × 10¯²

t = 48 / 0.036 OR t = 48 / 3.6 × 10¯²

t = 48 × 10² / 3.6

t = 1333.3sec t = 13.3 × 10²

Recheck the answers.

Dry cell batteries and household pesticides are classified as hazardous waste.

Hazardous household waste is the waste product came from households that is toxic, flammable, and reactive.

The dry batteries are common waste, it can be blasted in the dustbins or react with other thing to produce toxic chemicals

Thus, the correct option is hazardous waste.

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A sample of nickel containing 3.10 mol contains 182 g of nickel (to three significant figures)

Nickel is a chemical element with the symbol Ni and atomic number 28. It is a silvery-white metal with a slight golden tinge that is ductile and malleable. Nickel is a transition metal and is known for its high resistance to corrosion, as well as its ability to retain its strength and ductility at high temperatures. These properties make nickel a valuable material in many industrial and commercial applications, including the production of stainless steel, batteries, and electronic components. The molar mass of nickel (Ni) is 58.69 g/mol. To calculate the mass of 3.10 mol of nickel, we can use the following formula: mass = number of moles x molar mass

mass = 3.10 mol x 58.69 g/mol

mass = 182 g (to three significant figures )

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Answer:

54

Explanation:

Since in a neutral atom the atomic number is equal to the number of electrons which is ewual to the number of protons

Answer:

Xenon

Explanation:

Since they are giving you the amount of protons in the atom, with that you know what element it is. Protons indicate the atomic number of the element.

In this case, since we have 54 protons, our atomic number is 54 which is Xenon.

Answer:

Oh thats great..

But I hate juice :(

60.0 mL of 0.322 M potassium iodide are combined with 20.0 mL of 0.520 M lead (ll) nitrate. 4.453 g is the mass of lead (ll) iodide will precipitate.

A body's mass is an inherent quality. Prior to the discoveries of the atom as well as particle physics, it was widely considered to be tied to the amount of material in a physical body. It was discovered that, despite having the same quantity of matter in theory, different atoms and elementary particles have varied masses.

There are various conceptions of mass in contemporary physics that are theoretically different but physically equivalent. As a measure of a body's inertia, or the resistance to velocity whenever a combined force is applied, mass can be conceptualised empirically.

2KI + Pb(NO₃)₂ → 2KNO₃ + PbI₂(s)

Moles of KI = 0.322 M × 0.060 L

                    = 0.01932 moles

Moles of KNO₃= 0.530 M × 0.020 L

                        = 0.0106 M

0.01932 moles of KI will require 0.00966 moles of Pb(NO₃)₂

KI = limiting reagent

Moles of PbI₂   = 0.01932 moles ÷ 2

                        = 0.00966 mole

Mass of PbI₂ = 0.00966 moles × 461.01 g/mol

                    = 4.453 g

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Answer:

b I my current pls let me known

Answer:

False

Explanation:

Because it is false heat will always transfer so it require matter

Answer:

points srrypoints srry

Explanation:

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Methyl5-Methylhexanoate is the primary organic product of the reaction ch3oh+ h2so4.

Organic agriculture materials are employed to make an organic product. Although organic food is the most well-known organic product, organic agriculture can also be employed to manufacture apparel and personal care items.

While standards vary by country, organic crops in the  States must be farmed sans the use of synthetic herbicides, pesticides, or fertilizers, as well as bioengineered genes (GMOs).

Methyl hexanoate is manufactured in large quantities to be utilized as a flavoring ingredient. Methanol and hexanoic acid are combined to produce it. Plants naturally convert a chemical to methyl hexanoate.

2CH3OH + H2SO4 = (CH3)2SO4 + 2H2O

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Answer:

Explanation:

Here, we want to get the chemical formula for the compound

From what we have, the compound contains hydrogen and carbon only

We also were given that the molar mass is 28.06 amu

Now,we beed to get the individual atomic mass of carbon and hydrogen

From records, carbon has an AMU of 12.01

The AMU of hydrogen is 1.00794

Looking at the total value, we can see that the max possible number of atoms of carbon present is 2

Now, we need to know the number of hydrogen atoms

Let us call this n

Mathematically, we know that the AMU of the compound is the sum of the AMU of the individual atoms

Hence, we have it that:

Finally, we want to write the molecular formula of the compound

The molecular formula is written with carbon first, followed by its number of atoms as subscript, then hydrogen , with its number of atoms as subscript

We have this written as:

The response is C. 400mL of 5% glucose solution requires 20g of glucose to make.

To prepare 400mL of 5% glucose solution, we need to determine the amount of glucose required.

5% glucose solution means that 5g of glucose is present in 100mL of the solution.

Therefore, for 400mL of the solution, the amount of glucose required can be calculated as:

5g glucose/100mL solution = x g glucose / 400mL solution

x = (5g glucose/100mL solution) x (400mL solution) = 20g glucose

Therefore, the answer is D. 20g of glucose is needed to prepare 400mL of 5% glucose solution.

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Answer:

taste receptor

Explanation:

Good luck :)

Explanation:

Horner-Wadsworth-Emmons (HWE) reaction is an important synthetic reaction in organic chemistry. It is widely used for synthesizing various compounds. The reaction is between an aldehyde or ketone and a phosphonate or phosphonate ester in the presence of a strong base.

The Horner-Wadsworth-Emmons reaction is one of the most convenient and well-known methods of constructing carbon-carbon double bonds. The reaction proceeds via the formation of an ylide intermediate. The HWE reaction is particularly useful for the synthesis of compounds with a Z-configuration.

The mechanism for the reaction of diethyl benzylphosphonate and 3,4-methylenedioxybenzaldehyde in the presence of aqueous NaOH, forming 3,4-methylenedioxystilbene as the product, can be explained in the following steps:

Step 1: Formation of the ylide intermediate

The reaction starts with the formation of an ylide intermediate. This is achieved by the reaction of diethyl benzylphosphonate and 3,4-methylenedioxybenzaldehyde in the presence of a strong base like NaOH or KOH. In this reaction, a deprotonated species called an ylide intermediate is generated.

Step 2: Addition of the ylide intermediate to the aldehyde

The ylide intermediate then attacks the aldehyde, leading to the formation of a betaine intermediate.

Step 3: Formation of the phosphonate ester

The betaine intermediate undergoes elimination to form the final product, 3,4-methylenedioxystilbene, and the by-product phosphonate ester.

The mechanism of the Horner-Wadsworth-Emmons (HWE) reaction between diethyl benzylphosphonate and 3,4-methylenedioxybenzaldehyde in the presence of aqueous NaOH, forming 3,4-methylenedioxystilbene as the product, is complete. This reaction is significant in organic chemistry and finds applications in the pharmaceutical industry.

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Answer: No of molecule of sucrose = 1.806 X 10^24

Explanation:

No. of molecules = No. of moles X NA

No. of molecule of sucrose = 3 moles X 6.02 X 10^23

No of molecule of sucrose =18.06 X 10^23

No of molecule of sucrose =1.806 X 10^24

Answer:

1.80 × 10²⁴ Molecules of Sucrose

Answer:

please give me brainlist and follow

Explanation:

When dilute sulphuric acid is added to barium chloride solution, barium sulphate is formed as a precipitate and hydrogen chloride is formed in aqueous solution.

There are 14.4 * 10^18 oxygen atoms in 5.0020 mg of  strontium bicarbonate.

Mass of strontium bicarbonate Sr(HCO3)2 = 5.0020 mg

Molar mass of strontium bicarbonate Sr(HCO3)2 = 209.6537 g/mol

Number of moles of strontium bicarbonate Sr(HCO3)2 = 5.0020 * 10^-3g/209.6537 g/mol

= \(2.3858 * 10^-5\) moles

Given that we have 6 oxygen atoms per molecule of Sr(HCO3)2, the total number of oxygen atoms in Sr(HCO3)2 becomes;

\(2.3858 * 10^-5 moles * 6.02 * 10^23 = 14.4 * 10^18 oxygen atoms\)

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