State amagat's law of combining volume. It mathematical and graphical representation

The relationship  between the density (d) of a gas and the rate at which the gas diffuses is r = k/√d.

option B.

Graham's law of diffusion, also known as Graham's law of effusion, states that the rate of diffusion or effusion of a gas is inversely proportional to the square root of its gas density.

In other words, lighter gases diffuse or effuse faster than heavier gases at the same temperature and pressure.

Mathematically, this law is written as;

r ∝ 1/√d

r = k/√d

where;

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Answer:

The periodic table helps organize all the elements found in the world and tells a great deal of information on each of the elements such as their atomic mass, symbol, atomic number, and more. It even is organized into groups (columns) and periods (rows). The elements in the same group mostly have similar chemical properties. In short, the periodic table is a list of the elements that make up the world around you.

Explanation:

This isn't a Chemistry question. You might have better luck getting an answer if you posted under Geography.

Answer: b

A change of state is a reversible process.

It is the 4th scenario is the dependent event. There are 7 gold tokens and 4 silver tokens in a cup. The first student randomly draws a gold token and keeps it. A second student randomly draws a gold token from the cup.

The fouth scenario is a dependent event because the probability of the second student drawing a gold token is affected by the outcome of the first student's draw.

If the first student draws a gold token, then there are only 6 gold tokens left in the cup, the probability changes. but  if the first student does not draw a gold token, then there are 7 gold tokens left in the cup, the probability will remain the same

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we can determine the enthalpy of reaction for the hypothetical reaction A2X4(l) + X2(g) → 2AX3(g) using the following steps:

Hess's Law of Constant Heat Summation  states that regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes.

The law is  Hess's Law  of Constant Heat Summation  is described as a manifestation that enthalpy is a state function.

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0.0625 mol of NO gas is formed at stp.

The balanced equation for the reaction is,

3Ag + 4HNO3 → 3AgNO3 + NO + 2H2O

Moles of nitric acid = 5 x 50 x 10 ^ -3 = 0.25 mol

From the shown balanced equation of reaction, 3 moles of silver react with 4 mole of HNO3

0.30 mol of Ag react with = 4/3 x 0.30 HNO3 = 0.4 mol HNO3

So, clearly HNO3 is limiting reagent. A reactant in a chemical reaction that determines the amount of product that is produced is the limiting reactant or limiting reagent.

now, 4 mol of HNO3 will give 1 mol of NO

0.25 mol of HNO3 will give = 1/4 x 0.25 mol NO

=  0.0625 moles of NO

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The number of moles for the quanity 8.06 x\(10_{21\) atoms of Pt​ is approximately 2.61 grams.

To calculate the number of moles for a given quantity of atoms, we can use Avogadro's number and the molar mass of the element. Avogadro's number is 6.022 x 10²³ atoms/mol.

In this case, you have 8.06 x 10²¹ atoms of Pt. To find the number of moles, divide this quantity by Avogadro's number:

8.06 x 10²¹  atoms Pt / 6.022 x 10²³  atoms/mol = 0.0134 mol Pt

So, there are approximately 0.0134 moles of Pt in 8.06 x 10²¹  atoms of Pt.

The molar mass of Pt (platinum) is 195.08 g/mol. To convert the number of moles to grams, multiply the number of moles by the molar mass:

0.0134 mol Pt x 195.08 g/mol = 2.61 g Pt

Therefore, there are approximately 2.61 grams of Pt in 8.06 x10²¹  atoms of Pt.

In summary, the number of moles for the quantity 8.06 x 10²¹ atoms of Pt is approximately 0.0134 moles. This is equivalent to approximately 2.61 grams of Pt. Remember to use Avogadro's number and the molar mass to perform these calculations accurately.

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Based on the given reactions, the compounds are as follows:

A: The specific product formed from the reaction between prop-1-yne and either 2HBr or H2O2.

B: The product formed when compound A reacts with 2H2O.

C: The product formed when compound B reacts with K2CO3(aq).

D: The product formed from the heat-induced reaction of compound C.

E: The product formed when compound D reacts with HBr.

Based on the given reactions, let's analyze the compounds involved:

Reaction 1: prop-1-yne + 2HBr/H2O2 = A

The reactant prop-1-yne reacts with either 2HBr or H2O2 to form compound A. The specific product formed will depend on the reaction conditions.

Reaction 2: A + 2H2O = B

Compound A reacts with 2H2O (water) to form compound B.

Reaction 3: B + K2CO3(aq) = C

Compound B reacts with K2CO3(aq) (potassium carbonate dissolved in water) to form compound C.

Reaction 4: C + heat = D

Compound C undergoes a heat-induced reaction to form compound D.

Reaction 5: D + HBr = E

Compound D reacts with HBr (hydrobromic acid) to form compound E.

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Answer: I'm going to say it's Antartica because the only seasons it have is summer and winter and it doesn't change.

Explanation:

Answer:

\(M=4.00\frac{mol}{L}=4M\)

Explanation:

Hello.

In this case, we should remember that a molar concentration is defined in terms of the moles and volume in liters as shown below:

\(M=\frac{mol}{L}\)

Thus, for the given information we obtain:

\(M=\frac{8.000mol}{2.00L}\\ \\M=4.00\frac{mol}{L}=4M\)

Best regards.

The average speed = 43.33 miles per hours(mph)

Given

distance = 65 miles

time = 1.5 hours

Required

The average speed

Solution

The average speed : distance traveled divided by time taken or total distance divided by total elapsed time

Can be formulated :

avg speed = distance : time

avg speed = d : t

Input the value :

avg speed = 65 miles : 1,5 hours

avg speed = 43.33 miles per hours(mph)

Answer:

I saw B, he vented SUS

Explanation:

Iodoethane Is the answer.

173 degrees Celsius is extremely hot and would feel scorching and painful. It is well above the boiling point of water (100 degrees Celsius), so any contact with surfaces at this temperature would cause severe burns.

In more detail, at 173 degrees Celsius, the air would be unbearably hot, making it difficult to breathe. Your skin would feel a burning sensation immediately upon contact with any object or surface heated to this temperature. It would be similar to touching a hot stove or a blazing fire. The intense heat would quickly penetrate your skin, causing deep burns and potentially permanent damage. Extreme caution and protective measures are necessary to avoid such high temperatures, as they pose a significant risk to health and safety. It is important to stay away from such extreme temperatures to prevent serious harm.

In summary, 173 degrees Celsius would feel extremely hot and would cause severe burns upon contact with objects or surfaces at this temperature. The air would be scorching and difficult to breathe, making it essential to avoid exposure to such extreme heat for the sake of personal safety.

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Yes, carbon dioxide (CO₂) is involved in environmental problems such as the Greenhouse Effect. However, CO₂ is not directly linked to the Ozone Hole, Acid Rain, Air Pollution, or Water Pollution.

Carbon dioxide is a greenhouse gas that naturally occurs in the Earth's atmosphere, but human activities such as burning fossil fuels (coal, oil, and gas), deforestation, and land use changes have significantly increased its concentration, trapping more heat in the atmosphere and leading to global warming.

To curb the amount of excess carbon dioxide, individuals and governments can take several actions, such as: Reducing energy consumption by using energy-efficient appliances, turning off lights and electronics when not in use, and using public transportation, walking or cycling instead of driving, Switching to clean, renewable energy sources such as solar, wind, and hydropower to reduce the use of fossil fuels, Promoting afforestation and reforestation to absorb carbon dioxide from the atmosphere and restore natural ecosystems, Encouraging sustainable agriculture practices that reduce carbon emissions from livestock and soil.

By taking such actions, we can curb the amount of excess carbon dioxide and mitigate the impact of global warming and climate change.

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Answer

B

Explanation

At 0.25atm and 0 degrees celsius, water could exist as a liquid, as a solid, or as both. At this pressure and temperature, water can either melt or freeze.

The total kilojoules in two tablespoons is  836.8 kJ.

To determine the total kilojoules in two tablespoons of a substance, we need to know the specific substance and its energy content per tablespoon. Different substances have different energy values, so without this information, it is not possible to provide an accurate calculation.

The energy content of food or substances is typically measured in kilocalories (kcal) or kilojoules (kJ). 1 kilocalorie is equal to 4.184 kilojoules. The energy content of a substance is often listed on food labels or in nutritional databases.

For example, if we have the energy content of a substance as 100 kilocalories (kcal) per tablespoon, we can convert it to kilojoules by multiplying it by 4.184:

100 kcal * 4.184 kJ/kcal = 418.4 kJ

So, if we have two tablespoons of this substance, the total energy would be:

418.4 kJ/tablespoon * 2 tablespoons = 836.8 kJ

It's important to note that the energy content of a substance can vary depending on its composition, density, and other factors. Therefore, it is always recommended to refer to reliable sources such as food labels, nutritional databases, or consult a qualified professional to obtain accurate information regarding the energy content of specific substances.

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The change to the reactants that would accomplish increase in reaction rate is increase in concentration of reactant.

Reaction rate is the speed at which a chemical reaction proceeds.

It is expressed in terms of either the concentration of a product that is formed in a unit of time or the concentration of a reactant that is consumed in a unit of time.

Here, a student wants to increase the rate of a reaction that involves gases.

The increase in reaction rate will be result of increase in concentration of reactant.

In case of gases, it can be done via:

Increasing the pressure and decreasing the volume.

Hence, the change to the reactants that would accomplish increase in reaction rate is increase in concentration of reactant. Increasing the pressure and decreasing the volume are ways to accomplish this.

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Answer:

101 years

Explanation:

Use the half life equation, where t1/2 is the half life, and k is the rate constant:

t1/2 = 0.693/k

t1/2 = 0.693/0.00683 yr -1

t1/2 = 101 years

The change in enthalpy when 90.6 g of steam at 100◦C is converted to liquid water at the same temperature and pressure is 204.7 KJ

First, we shall obtain the number of mole water converted to steam. details below:

Mole = mass / molar mass

Mole of water = 90.6 / 18

Mole of water = 5.03 moles

Finally, we shall determine the change in enthalpy. Details below:

ΔH = n × ΔHv

ΔH = 5.03 × 40.7

ΔH = 204.7 KJ

Thus,  we can conclude that the change in enthalpy is 204.7 KJ

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The mass of 7.8 x 10^22 carbon atoms is 1.553 grams.

To determine the mass of 7.8 x 10^22 carbon atoms, we need to use the concept of molar mass and Avogadro's number.

The molar mass of carbon (C) is approximately 12.01 g/mol, which represents the mass of one mole of carbon atoms. Avogadro's number states that there are 6.022 x 10^23 atoms in one mole of any substance.

Now, let's calculate the mass of 7.8 x 10^22 carbon atoms:

Determine the number of moles:

Number of moles = Number of atoms / Avogadro's number

Number of moles = (7.8 x 10^22) / (6.022 x 10^23) = 0.1295 moles

Calculate the mass:

Mass = Number of moles x Molar mass

Mass = 0.1295 moles x 12.01 g/mol = 1.553 g

Therefore, the mass of 7.8 x 10^22 carbon atoms is approximately 1.553 grams.

The calculation is based on the understanding that the molar mass of carbon represents the mass of one mole of carbon atoms. By dividing the given number of atoms by Avogadro's number, we obtain the number of moles. Multiplying the number of moles by the molar mass gives us the mass in grams.

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The mass of antifreeze required to fill a 2.5 gallon car radiator is

Since, 1 gallon = 3.785 L

2.5 gallon = 9.4625 L

Given,

Gasoline = 9.4625 L x 1000 mL/L

               = 9462.5 mL

Density = 0.79 g/mL

Mass = Density  x volume                                                (density =  mass   )

Mass = 0.79 g/mL x 9462.5 mL                                                         volume              

Mass = 7475.37 g

Therefore,

Mass of antifreeze, in grams = 7475.37 g

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Explanation:

there is one missing letter.

hope it is helpful to you

Answer:

Explanation:

An acid acts to increase the hydrogen ion concentration of a solution. A base acts to decrease the hydrogen ion concentration of a solution. A buffer acts to maintain a relatively stable concentration of hydrogen ions in a solution. As the hydrogen ion concentration of a solution decreases, the pH rises. As the pH of a solution increases, the concentration of hydroxide ions increases. The pH of a solution is defined as the negative logarithm of the hydrogen ion concentration.

Answer:

Drought

Explanation:

It would get really dry because no moisture and the lakes would dry up bc of lack of water

A double bond connecting a carbonyl carbon and an oxygenyl carbon forms a carbonyl group.

A carbon atom is double-bonded to an oxygen atom to form the chemically organic functional group known as a carbonyl group. [C=O] Aldehydes and ketones are the most basic carbonyl groups, and they are typically joined to another carbon molecule. Many aromatic compounds have these structures, which contribute to flavor and fragrance. A functional group called the carbonyl group has a carbon atom double-bonded to an oxygen atom, or C=O. Another meaning of the word "carbonyl" is a metal-bound, neutral carbon monoxide ligand. Tetracarbonyl nickel, or Ni(CO)4, is one illustration. A double bond connecting a carbonyl carbon and an oxygenyl carbon forms a carbonyl group. Two of the carbonyl oxygen's six valence electrons are shared with the carbonyl carbon atom. Two sets of electron lone pairs make up the remaining four valence electrons.

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Answer:

hello your question is incomplete and lacks the required figure  below is the missing part

The two sides of the DNA double helix are connected by pairs of bases (adenine, thymine, cytosine, and guanine). Because of the geometric shape of these molecules, adenine bonds with thymine and cytosine bonds with guanine shows the thymine adenine bond. Each charge shown is ±e, and the H−N distance is 0.110 nm

answer : net force due to O-H-N combination = -5.03354 * 10^-9 N

              net force due to N-H-N combination = -3.822 * 10^-9 N

              net force that the thymine exerts on adenine =  -8.8558 * 10^-9 N

Explanation:

considering only the forces due to O-H-N and N-H-N to determine the net force been exerted on adenine by thymine

we have to make some assumptions

we have to assume force towards thymine to be negative

Net force that thymine exerts on Adenine

= net force due to 0-H-N  + net force due to N-H-N

= ( -5.03354 * 10^-9 ) +  ( - 3.822 * 10 ^-9 )

=  -8.8558 * 10 ^-9 N

ATTACHED BELOW IS THE REMAINING PART OF THE SOLUTION

Answer:

12.0778

Explanation:

it's a significant answer.....

Answer:

9.3478+2.73 is

Explanation:

12.0778

Answer:

53.1% of hydrogen reacts

Explanation:

The mixture of 2 atoms of H with 1 atom of O produce 1 molecule of H₂.

The mass of hydrogen in 2.32g of H₂O could be obtained using molar mass of H₂O (18.01g/mol) and molar mass of hydrogen (1.01g/mol) as follows:

Moles H₂O: 2.32g H₂O × (1mole / 18.01g) = 0.1288 moles of water

1 mole of H₂O contains 2 moles of H, moles of hydrogen in 0.1288 moles of water are:

0.1288 moles H₂O × (2 moles H / 1 mole H₂O) = 0.2576 moles of H

In mass:

0.2576 moles H × (1.01g/ mol H) = 0.260g H you have in the formed water

As before reaction you had 0.485g of H and just 0.260g reacted, mass percent is:

(Mass that reacts / Mass added) × 100

(0.260g / 0.485g) × 100 =

A redox reaction is a reaction in oxidation or the loss of electrons occurs simultaneously with reduction involving a gain of electrons.

The balanced equation of the redox reaction by the oxidation number method is as follows: Zn + 2HNO₃ ----> Zn(NO₃)₂ + 2NO₂ + H₂O

The complete equation of the redox reaction is given below as follows:

To balance the chemical reaction by oxidation number, we need to ensure that the total change in oxidation numbers for each element is zero on both sides of the equation.

Let's assign the oxidation numbers to the elements:

In Zn(NO₃)₂, the oxidation number of Zn is +2, and the oxidation number of each NO₃ group is -1.

In HNO₃, the oxidation number of H is +1, the oxidation number of N is +5, and the oxidation number of each O in NO₃ is -2.

On the product side, the oxidation number of Zn is +2, and the oxidation number of each NO₃ group is -1. The oxidation number of N in NO₂ is +4, and the oxidation number of each O is -2. The oxidation number of H in H₂O is +1, and the oxidation number of O is -2.

Now, let's balance the reaction by considering the changes in oxidation numbers:

Zn: 0 → +2

H: +1 → 0

N: +5 → +4

O: -2 → -2

To balance the oxidation numbers, we need two NO₂ molecules on the product side. The balanced equation is:

Zn + 2HNO₃ ----> Zn(NO₃)₂ + 2NO₂ + H₂O

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