A sample of co2 (g) at 30c and 98.5kpa is placed in a 6.0 l container. find the pressure if the temperature is raised to 60c and the volume is changed to 3.0l

6.23L volume of h2 gas is produced at stp.

Given that one mole of dihydrogen (H2) weighs 2,0159 g/mol, the experimental density of hydrogen—which is 0,0899 g/L at 0 °C and 0,0837 g/L at 20 °C—can be used to compute the exact molar volume of hydrogen.

This implies that at STP, one mole of hydrogen also takes up 22.4 liters of space. Therefore, at STP, 10moles of hydrogen gas will take up =22.410=224litres of space. In other words, when 460g of salt combines with extra water at STP, 224litres (or 224000mL) of hydrogen gas are released.

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the question you are looking for is

A 5.00 g sample of Al reacts with excess H2SO4. What volume of H2 gas is produced at STP?

2Al(s) + 3H2SO4(aq)→ Al2(SO4)3(aq) + 3H2 (g)

Answer:

CH4 - Methane

B2Si - Diboron monosilicide

N2O5 - Dinitrogen pentoxide

CO2 - Carbon dioxide

Explanation:

When it comes to naming covalent compounds, there are several rules.

The name is derived based on the formula. For example, N2O5. The first element is nitrogen. To the name of the element, you add the prefix that tells us how many of its atoms are in the compound. In this case, there are two atoms, which means that the prefix will be di- (dinitrogen). The second element is oxygen. You are supposed to take only the root of the second element's name and then add the prefix denoting the number of its atoms and the suffix -ide (pentoxide). This is how we'll get dinitrogen pentoxide.

The only exception is methane (CH4), which is an organic compound. Organic compounds are named using the IUPAC nomenclature.

Answer:

Heyaa!! Im Pinky and Im here to inform you that your answer is...

Explanation:

!!! 36.8189451 Grams !!!

  Have an amazing day!!!

~Pinky~!!

Answer:

D

Explanation:

Since the negative particles are going towards the negative section and the positive particles are leaving the positive section. Additionally, opposite charges attract each other and like charges repel each other.

There will be attraction between the opposite charges and repulsion among the like charges. Here the diagram D shows a correct interaction between the fields of two charged particles.

The electric force acting per unit charge is defined as the electric field. They are generally produced by changing the electric charges or magnetic fields. The electric field strength is expressed in volt per meter (V/m).

E = F/Q

In an electric field it is the electric charge which provides the direction of field. If the charge is negative, then the field is directed towards the charge. A field is directed away from the charge if the charge is negative.

All the electric fields start form a positive charge and end on a negative charge. If two positive charges interact then there will be repulsion between them. But if a positive charge interact with a negative charge then there will be attraction among them.

In diagram D there is an attraction between the opposite charges.

Thus the correct option is D.

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Answer:

thermal energy is heat energy it is used for man kitchen appliances and also in nature from the sun for photosynthesys

Explanation:

Answer:

1.37 L

Explanation:

(87.0)(0.492)(643)÷(39.1)(515)

27522.972 ÷ 20136.5

=

1.36682005314

↓

1.37 (Rounded)

Hope this Helps!

Answer:

1.37 L

Explanation:

XD

rate is directly propotional to \([concentration]^{[order]}\)

orders of the reactants in the rate law determined by diong an experiment

It is an experimental concept

option 1 correct

kinetics tells you speed of the reaction , kinetics tells you how fast you how fast the reaction is occurring

A rate term expresses the response in terms of changes in reactant or product concentrations over time. Reaction rates can be expressed in terms of either reactants or products in a reaction.

There are several rules for writing rate equations:

1) Reaction equations have a negative sign. This is because reactants are depleted or diminished.

2) The product description is positive. It's because you gain weight.

3) All rate equations for different reactants and products must be the same to be accurate. (This means that the equation must be corrected for reaction stoichiometry)  

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Gravity, as a fundamental force of nature, is influenced by several factors. The following are some of the key factors affecting gravity:

The mass of solution is equivalent to the mass of the solute and solvent.

The material whose dissolves is known as a solute, as well as the substance

The solute is dissolved to produce a solution, is known as a solvent.

Solution is made by solvent , solute also. So, by adding mass of solvent and solute mass of a particular solution could be found.

It can be expressed as:

Mass of solution = mass of solute + mass of solvent

Therefore, the mass of solution is equivalent to the mass of the solute and solvent.

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To make 50.0 mL of a 0.100 M carbonate buffer with a pH of 9.00, we would need to weigh out 0.223 g of NaHCO₃ and 0.177 g of Na₂CO₃.

In order to calculate the hundreds of sodium bicarbonate and sodium carbonate wished to make the buffer solution we pick to replicate on consideration on the henderson-hasselbalch equation which relates the ph of the buffer to the pka and the ratio of the concentrations of the susceptible acid and its conjugate base

Buffer solution mass calculation

calculate the mass of sodium bicarbonate and mass of sodium carbonate needed to make 50.0 ml of a 0.100 m carbonate buffer with ph

In order to calculate the masses of sodium bicarbonate and sodium carbonate needed to make the buffer solution, we need to consider the Henderson-Hasselbalch equation, which relates the pH of the buffer to the pKa and the ratio of the concentrations of the weak acid and its conjugate base:

pH = pKa + log([A-]/[HA])

where pH is the desired pH of the buffer, pKa is the acid dissociation constant of the weak acid, [A-] is the concentration of the conjugate base, and [HA] is the concentration of the weak acid.

In this case, we want to make a carbonate buffer, which consists of the weak acid H₂CO₃ (carbonic acid) and its conjugate base HCO₃- (bicarbonate ion), with a pH of 9.00. The pKa of carbonic acid is 6.35. Using the Henderson-Hasselbalch equation, we can solve for the ratio of [HCO₃-]/[H₂CO₃] that gives a pH of 9.00:

9.00 = 6.35 + log([HCO₃-]/[H₂CO₃])

2.65 = log([HCO₃-]/[H₂CO₃])

10^2.65 = [HCO₃-]/[H₂CO₃]

[1.98] = [HCO₃-]/[H₂CO₃]

So the ratio of [HCO₃-]/[H₂CO₃] in the buffer should be approximately 2. Therefore, we can choose any total concentration for the buffer as long as the ratio of bicarbonate to carbonic acid is 2.

Next,

[HCO₃-] = 2 * [H₂CO₃]

[HCO₃-] + [H₂CO₃] = 0.100 M

Substituting the first equation into the second, we get:

3[H₂CO₃] = 0.100 M

[H₂CO₃] = 0.0333 M

[HCO₃-] = 0.0667 M

Similarly, the molecular weight of Na₂CO₃ is 105.99 g/mol, so the mass needed to make 50.0 mL of a 0.0333 M solution is:

mass of Na₂CO₃ = 0.0333 M * 105.99 g/mol * 0.0500 L

= 0.177 g

Therefore, to make 50.0 mL of a 0.100 M carbonate buffer with a pH of 9.00, we would need to weigh out 0.223 g of NaHCO3 and 0.177 g of Na₂CO₃.

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Answer:

Oil and vinegar separate because it is a suspension

Explanation:

When you let suspensions sit the particles begin to layer out, in the salad dressing the oil layers out on top of the vinegar. The two layers of oil and vinegar don't actually dissolve in each other. The layer with the lower density (oil) floats on top of the layer with a higher density (vinegar)

Water and vinegar are both hydrophilic and mix, whereas the oil is hydrophobic. Oil and vinegar separate because it is a suspension

Hydrophilic molecule are water-loving polar molecule.

They interact with water or they are dissolved in water or water like polar solvent.

For instance, the phospholipid molecules of the plasma membrane has a hydrophilic phosphate group.

Hydrophobic is a water hating  substance which can not dissolve in water, but other non-polar solvent.

Thus hydrophobic substances are lipophilic in nature  and the hydrophobic solvents are used to  separate water-immiscible substances from water.

The layers of oil and vinegar can not  dissolve with each other. The oil layer has the  lower density floats on top of the layer with a higher density product called vinegar.

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Answer:

Magnesium

Explanation:

Hope this helps!

The rate constant of the first-order half-life reaction is 0.023 / sec or ln(2)/30 sec.

The formula for a first-order half-life reaction is t = (1/k) [ ln (initial concentration/final concentration)].

For determining the rate constant k, we can easily substitute the given t=30.0s to the formula. As for the initial and final concentration, we will be using 1/2 of the initial concentration as the final concentration. With this, the ratio of initial and final concentration would be equal to 1/(1/2) or 2. The exact value of the concentration is not important for this problem.

t= (1/k) * ln(2)

30.0 seconds = (1/k) * ln(2)

k = (ln (2)) / 30 seconds

k = ln (2) / 30 or 0.023/sec

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Answer:

c tarnishes in air

Explanation:

After silver has been exposed to air that contains sulphur gases, discoloration would occur. there would be darkening that is caused by the reaction with gases.When any silver object tarnishes, it brings about a disfiguring of that object. Hydrogen sulphide would be needed for this to happen. silver sulphide is black and a if a thin layer should form on any surface, it ill darken it. This  is what we refer to as tarnishing.

Answer:

c

Explanation:

it tarnishes in air

Water has a much higher specific heat, than air, because it takes more energy to heat water than it does to heat air.

This is a term which is referred to as the quantity of heat which is required to raise the temperature of one gram of a substance by one Celsius degree.

Water has a higher specific heat because it requires more energy to heat water than it does to heat air and an example is result of the specific heat  of the two variables from various studies by scientists in various parts of the world.

Water has a specific heat of 4.186 J/g degrees celsius, versus air, which has a specific heat of 1.005 J/g degrees celsius which is therefore the reason why water was chosen as the correct choice and the one which has a higher specific heat.

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The empirical formula of the compound is C6H12O3.

To determine the molecular formula, we need to calculate the molecular weight of the empirical formula, which is 612 + 121 + 3*16 = 120. Then, we can divide the given molecular mass (132 amu) by the empirical formula weight (120) to get the multiplier, which is 1.1. Finally, we can multiply each subscript in the empirical formula by the multiplier to get the molecular formula, which is C6.6H13.2O3.3. We can round up to get the closest whole number ratio, which gives us the molecular formula of C7H14O4.

First, we can determine the empirical formula by converting the percentages into grams, assuming a 100 gram sample. From the percentages given, we can calculate that the sample contains 54.53 grams of carbon, 9.15 grams of hydrogen, and 36.32 grams of oxygen. We can then convert these masses into moles by dividing by their respective atomic masses (12.01 g/mol for carbon, 1.01 g/mol for hydrogen, and 16.00 g/mol for oxygen).

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C6H12O3 is the empirical formula of the compound, and its molecular formula is C12H24O6.

To determine the empirical formula, we need to find the simplest whole number ratio of atoms in the compound. By converting the percentages to grams, we can calculate the mole ratio of C:H:O as 6:12:3, which simplifies to 1:2:0.5. Multiplying by 2 to get whole numbers gives the empirical formula as C6H12O3.

To find the molecular formula, we need to know the molecular mass of the compound. Dividing the given molecular mass by the empirical formula mass (C6H12O3 has a mass of 132 amu) gives a factor of 2. So, the molecular formula is twice the empirical formula, which is C12H24O6.

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Answer and Explanation:

The Kinetic-molecular theory describes the  behavior of matter that represents the movement of the tiny particles which we called as a molecules i.e. a atoms which is in the group in a given ratio

The molecules which are in the solids i.e. ice cubes are very near to each other and contains a movement that is very limited. Also their translation speed is zero but the forces i.e. intermolecular is high

In the case when a solid melts i.e. the cubes of an ice convert into a water so the molecules should be separate due to which the forces of intermolecular reduced. If the forces of intermolecular is high so it is sufficient to prevent the molecular movement in an independent way

Answer:

70..... I think

Explanation:

Cuz if the bus travels 35 km every 30 mins this means that it travels 70 km per hour

The energy of one quantum of orange light, given that it has a frequency of 4.8×10¹⁴ s⁻¹ is 3.18×10⁻¹⁹ J

We know that energy and frequency are related according to the following equation:

Energy (E) = Planck's constant (h) × frequency (f)

E = hf

Using the above formula, we can obtain the energy of one quantum of the orange light. Details below:

Energy (E) = Planck's constant (h) × frequency (f)

E = hf

E = 6.626×10⁻³⁴ × 4.8×10¹⁴

E = 3.18×10⁻¹⁹ J

Thus, the energy is 3.18×10⁻¹⁹ J

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Answer:

1. V2.

2. 299K.

3. 451K

4. 0.25 x 451 = V2 x 299

Explanation:

1. The data obtained from the question include:

Initial volume (V1) = 0.25mL

Initial temperature (T1) = 26°C

Final temperature (T2) = 178°C

Final volume (V2) =.?

2. Conversion from celsius to Kelvin temperature.

T(K) = T (°C) + 273

Initial temperature (T1) = 26°C

Initial temperature (T1) = 26°C + 273 = 299K

3. Conversion from celsius to Kelvin temperature.

T(K) = T (°C) + 273

Final temperature (T2) = 178°C

Final temperature (T1) = 178°C + 273 = 451K

4. Initial volume (V1) = 0.25mL

Initial temperature (T1) = 299K

Final temperature (T2) = 451K

Final volume (V2) =.?

V1 x T2 = V2 x T1

0.25 x 451 = V2 x 299

Answer:

livermorium

Explanation:

The atom with the largest number of neutrons is a tie between livermorium and tennessine. Each of these atoms contain 177 neutrons.

Answer:

1. D

2. A

3. B

4. A

5. BB

Explanation:

1d. 50%

2a. 29.5

3b. increasing

4a. decreasing

5b. waxing

The magnification of the magnifying glass is approximately 1.44.

To calculate the magnification of the magnifying glass, we can use the formula:

Magnification = (image distance) / (object distance)

In this case, the magnifying glass is held 10.4 cm from the mole, so the object distance (d₀) is 10.4 cm. The focal length (f) of the magnifying glass is given as 15.0 cm.

Using the formula, we can calculate the magnification (M):

M = (image distance) / (10.4 cm)

The magnification of a magnifying glass is typically assumed to be the ratio of the image distance to the least distance of distinct vision (25 cm for a relaxed eye). Therefore, we need to find the image distance (dᵢ) in terms of the least distance of distinct vision.

Using the lens formula: 1/f = 1/d₀ + 1/dᵢ

We can rearrange the formula to solve for the image distance (dᵢ):

1/dᵢ = 1/f - 1/d₀

Substituting the given values:

1/dᵢ = 1/15 cm - 1/10.4 cm

Calculating the result:

1/dᵢ ≈ 0.0667 cm⁻¹

dᵢ ≈ 15 cm

Now we can substitute the values for image distance (dᵢ) and object distance (d₀) into the magnification formula:

M = 15 cm / 10.4 cm

Simplifying the calculation:

M ≈ 1.44

Therefore, the magnification of the magnifying glass in this scenario is approximately 1.44.

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Answer:

Nitrogen is the main component because it comprises 78% of total air while oxygen comprises 21%

\(.\)

Answer:nitrogen

Explanation:

while brainstorming among possible topics consisting of coconuts, cathedrals, clouds, concerts, chemistry, and clay karl used  cathedrals most.

Karl most likely generated this list of themes using free association or free-form brainstorming. Using this method, one creates a list of concepts or subjects without any prior structure or order. Without giving any thought to the viability or quality of individual ideas, the objective is to come up with as many as you can in a short period of time. Karl's list has a wide variety of themes, which is a typical result of free association brainstorming.

In order to come up with a lot of ideas quickly, brainstorming is a creative problem-solving strategy. In most cases, a team of individuals collaborates to produce as many ideas as they can, frequently in response to a particular prompt. a difficulty or query. Regardless of the quality or viability of the ideas produced, the purpose of brainstorming is to promote creativity. Free association, thought mapping, and nominal group approach are a few typical brainstorming strategies. A range of settings, including business, education, and the arts, might benefit from brainstorming. A technique for generating ideas and exchanging knowledge to address a specific business or technical problem, brainstorming encourages participants to think freely.

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A: Negatively charged ions

B: Hydrophollic molecules

Facilitated diffusion is the spontaneous passive transport of molecules across the biological membrane through the help of a membrane protein. This type of diffusion occurs in the molecules that cannot cross the membrane freely and requires a molecule to enter and leave the membrane.

Negatively charged ions and hydrophobic molecules require facilitated diffusion.

Therefore, option A and B are correct.

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Answer:

6

Explanation:

If there are 6 electrons and it has a balanced charge, there also must be six protons.

Answer:

0 pure reactants

Explanation:

hope this helps!

These charts typically guide you through a series of questions based on the physical and chemical properties of the mineral, such as color, hardness, cleavage, and reaction to acid.

By answering each question, you can narrow down the possibilities and eventually identify the mineral. Another helpful tool is a handheld mineral identification kit, which includes common minerals and their properties for comparison to the unknown mineral. Observe the physical properties of the mineral, such as color, luster, hardness, cleavage, and fracture, using a magnifying glass or a microscope.

Test the mineral's hardness using a mineral hardness scale, such as Mohs scale, which ranks minerals based on their ability to scratch one another.Test the mineral's streak, which is the color of the powdered mineral, by rubbing the mineral against an unglazed porcelain plate.

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Answer:

Explanation:

Under good conditions the seedling can thrive in soil that does not have any clay as long as it gets the proper nutrients and right amount of sunlight/water that it needs. Clay in soil can provide the nutrients necessary for seedlings to thrive but can also cause many negatives. One such con of using clay is that it does not absorbe water very well, this ultimately causes the soil to become waterlogged and drowns the plants as no oxygen can pass through. This would ultimately kill the plants.