How did Gettler’s life reflect the frenetic turmoil of the 1920s?

Taking into account the Avogadro's Law, 0.600 moles occupies 1.200 L.

Avogadro's Law is a gas law that relates the volume and amount of gas at constant pressure and temperature.

Avogadro's law states that volume is directly proportional to the amount of gas: increasing the amount of gas will increase the volume, while decreasing the amount of gas will decrease the volume.

Mathematically, this law states that the ratio between the volume and the amount of gas is constant:

\(\frac{V}{n} =k\)

Assuming that there is a certain amount of gas n1 that occupies a volume V1 at the beginning of the experiment, by varying the amount of gas to a new value n2, then the volume will change to V2, and the following is true:

\(\frac{V1}{n1} =\frac{V2}{n2}\)

In this case, you know:

Replacing in Avogadro's Law:

\(\frac{0.800 L}{0.400 moles} =\frac{1.200 L}{n2}\)

Solving:

\(n2x\frac{0.800 L}{0.400 moles} =1.200 L\)

\(n2=\frac{1.200 L}{\frac{0.800 L}{0.400 moles} }\)

n2= 0.600 moles

Finally, 0.600 moles occupies 1.200 L.

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Answer:

24.87× 10²³ atoms of Ni

Explanation:

Given data:

Number of atoms of Ni= ?

Number of moles of Ni = 4.13 mol

Solution:

we will calculate the number of atoms of Ni by using  Avogadro number.

It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

The number 6.022 × 10²³ is called Avogadro number.

1 mole = 6.022 × 10²³ atoms

4.13 mol ×  6.022 × 10²³ atoms /1 mol

24.87× 10²³ atoms of Ni

Answer:

17 electron

Explanation:

because the number of the proton and number of electron is equal if ther is no charge

The volume occupied by 21.0 g of methane (CH4) at 27 degree Celsius and 59 atm is 26.1403 L.

A hypothetical gas made up of molecules that abide by the following conditions is referred to as an ideal gas: Molecular interactions in ideal gases are neutral. The molecules of an ideal gas wouldn't interact with each other or the container walls other than when they collided in an elastic collision.

The ideal gas law equation can be used to determine the volume occupied by a gas and is as follows:

PV = nRT

Where;

P = pressure (atm)

V = volume (L)

n = number of moles (mol)

R = gas law constant (0.0821 L atm/mol K)

According to this question;

n = 27g ÷ 16g/mol = 1.6875 mol

V = ?

P = 59 atm

T = 27°C + 273 = 300K

substitute the value sin the above equation, we get

1.59 × V = 1.6875 × 0.0821 × 300

simplifying the above equation, we get

1.59 V = 1.6875 × 0.0821 × 300

V = 26.1403 L

Therefore, volume occupied by 21.0 g of methane (CH4) at 27 degree Celsius and 59 atm is 26.1403 L.

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Answer: B

Explanation: sorry if I'm too late but i just did this question and that was the right answer

Applications of anaerobic respiration is generating microbial fuel cell

Anaerobic respiration is the because of lack of oxygen they carry out respiration in the absence of oxygen to produce the energy they require called as anaerobic respiration

Anaerobic respiration is useful generating microbial fuel cell which employ bacteria that respire solid electron acceptor to transfer electron from reduced compound to an electrode this process can simultaneously degrade organic carbon waste and generate electricity

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Answer:

The weather from the outside has impact n what goes on inside. Due to it being hot and muggy out, the weather was able to mess with the temperature in the house.

Explanation:

An air condition is used to regulate the temperature of a room by removing heat as well as reducing humidity.

Temperature is the degree of coldness or hotness of an object or a particular place.

The temperature of an area is affected by the climate and the amount of sunshine.

Also due to heating, water vapor rises into the atmosphere resulting in humidity.

An air condition makes a temperature room cooler by removing heat as well as reducing humidity.

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Answer:

Neutrons

Explanation:

let me know if it is right or not:)

Answer:

Mass of metal = 64 g

Explanation:

Given data:

Density of metal = 4 g/mL

Volume of water = 400 mL

Volume of water + metal = 416 mL

Mass of metal  = ?

Solution:

First of all we will calculate the volume of metal

Volume of metal = (Volume of water + metal) - volume of water

Volume of metal = 416 mL -  400 mL

Volume of metal = 16 mL

Mass of metal:

d = m/v

4 g/mL = m/  16 mL

m = 4 g/mL ×16 mL

m = 64 g

Answer:

You can infert that it has a mass of 40 grams.It also has desnity of 40 grams per millilieter.

Explanation:

The volume of water raised from the glass is equal to the density of the object which displaces water. Hence, 40 g/ml is the density of the rock.

The Greek mathematician and inventor Archimedes discovered the physical law of buoyancy, which states that any body completely or partially submerged in a fluid (gas or liquid) at rest is subject to an upward, or buoyant, force whose magnitude is equal to the weight of the fluid displaced by the body.

The volume of fluid that has been displaced is equal to the volume of an object that is completely submerged in the liquid or to the portion of the volume below the surface for an object that is only partially submerged.

Therefore, the density of the rock is equivalent to the volume of water level raised in the glass. Thus density of rock is 40 g/ml.

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Answer:

Explanation:

There are seven periods in the periodic table, with each one beginning at the far left. A new period begins when a new principal energy level begins filling with electrons. Period 1 has only two elements (hydrogen and helium), while periods 2 and 3 have 8 elements. Periods 4 and 5 have 18 elements.

Answer:

In the periodic table, there are 7 periods and 18 groups.

Explanation:

#CARRY ON LEARNING

What is meant by isomerism?

➪ Two or more compounds having the same molecular formula but different structures are called isomers and this process is known as isomerism...~

Explanation:

Isomerism is basically denoted to two compounds having same molecular formula but different structures ,functional groups,bonds at different places.

It's of three types

To determine the empirical formula of phosphorus sulfide, we need to calculate the mole ratios of phosphorus and sulfur in the compound based on the given mass of each element.

Calculate the number of moles of phosphorus:

Mass of phosphorus = 44.8 mg = 0.0448 g

Molar mass of phosphorus (P) = 31.0 g/mol

Moles of phosphorus = mass of phosphorus / molar mass of phosphorus

= 0.0448 g / 31.0 g/mol

= 0.00145 mol

Calculate the number of moles of sulfur:

Mass of sulfur = 161 mg = 0.161 g

Molar mass of sulfur (S) = 32.1 g/mol

Moles of sulfur = mass of sulfur / molar mass of sulfur

= 0.161 g / 32.1 g/mol

= 0.00502 mol

Determine the mole ratio of phosphorus to sulfur:

Divide the number of moles of each element by the smallest number of moles (phosphorus in this case):

Moles of phosphorus = 0.00145 mol

Moles of sulfur = 0.00502 mol

Mole ratio of phosphorus to sulfur = 0.00145 mol / 0.00145 mol : 0.00502 mol / 0.00145 mol

= 1 : 3.46

Since we need to express the ratio in whole numbers, we can multiply both sides by a suitable factor to get whole numbers. In this case, multiplying by 2 gives a ratio of approximately 2 : 7.

Write the empirical formula:

The empirical formula of phosphorus sulfide is P2S7, indicating that there are two phosphorus atoms and seven sulfur atoms in the compound.

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Answer:

Ionic bonds transfer electrons and covalent bonds share electrons.

Explanation:

Ionic bonds tend to transfer electrons completely. Take NaCl for example.

Cl has 7 valence electrons.

Na has 1 valence electron.

To stabilize themselves, either with a full 8 shells or full outer shell, Cl wants 1 electron and Na wants to lose 1 electron. So when NaCl forms, Na donates its electron to Cl.

In a covalent bond, the electrons are shared. Water can be used as an example. The electrons in water usually are around the oxygen, but sometimes it is around the hydrogens.

The probability that each person will receive a piece of candy if you pass out 3 indistinguishable pieces of candy to 3 people is 1/3 or approximately 0.33.

This can be calculated by using the basic principle of probability, which states that the probability of an event happening is equal to the number of ways that event can happen divided by the total number of possible outcomes.

In this case, there are 3 people and 3 pieces of candy, so the first person can receive any of the 3 candies, the second person can receive one of the remaining 2 candies, and the last person will receive the final piece of candy. Therefore, there are 3x2x1 = 6 possible ways that the candies can be distributed, and only one of those ways will result in each person receiving a piece of candy. Thus, the probability of each person receiving a piece of candy is 1/6 or approximately 0.33.

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The intermolecular forces at play that allow the sodium sulfate to dry the product are hydrogen bonding and van der Waals forces.

When anhydrous sodium sulfate is added to a solution, it readily absorbs water molecules by forming hydrogen bonds with them. This removal of water molecules results in a reduction in the number of water molecules present in the mixture and thus, the product is dried.

Additionally, van der Waals forces also play a role in the drying process. Van der Waals forces are weak, non-covalent forces that arise due to the fluctuation of electron density in a molecule. They are responsible for the interaction between molecules, including the attraction between sodium sulfate and water molecules.

The combined effect of hydrogen bonding and van der Waals forces results in the absorption of water by the anhydrous sodium sulfate, leading to the drying of the product.

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Sun is the centre of the solar system containing 8 planets. Some planets have moons revolving around them. The planet from the sun which a moon is Earth.

Planets are spatial objects formed by gases, soil, and dust and are having a gravitational force. The only living planet is earth. The moon of earth is itself called moon which is revolving around the earth.

In solar system the nearest planet to sun is mercury which have no moons. Next is venus also having no moons. The next planet in the series is earth having one moon.

After earth, mars is closest to sun which have two moons namely Deimos and Phobos. After mars,Jupiter having the highest number of moons and then saturn.

Therefore, the first planet from sun having at least one moon is earth.

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Answer:

Explanation:

Answer:,,,,,

The number of molecules in 10.0 gram of NaOH is 15 * 10²².

To solve this question, we need to understand some terms of mole concept,

Mole - It is the amount of substance containing same number of molecules or atoms as there are atoms in 12 gram of carbon-12 isotope.

Molecules - It is group of atoms bonded together, representing the smallest fundamental unit of a chemical compound taking part in chemical reaction.

Molecular weight - The sum of atomic masses of all atoms in molecules.

Avogadro number - It is the number of atoms, ions, electrons, molecules in one mole of substance. It is represented as NA.

NA = 6.0 * 10²³ (approx)

To calculate the number of molecules, we apply the formulae,

no. of molecules = moles * NA

moles = weight / molecular weight

moles = 10.0 / 40

          = 0.25

Substituting this value to calculate number of molecules,

no. of molecules = 0.25 * 6.0 * 10²³

                            = 15 * 10²²

Therefore the number of molecules of in 10.0 g of NaOH is 15 * 10²².

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Answer:

Genotypic ratio = 1 Bb: 1 bb

Phenotypic ratio = 1 black rabbit : 1 brown rabbit

Explanation:

This question involves a gene coding for hair color in rabbits. The allele for Black hair (B) is dominant to the allele for brown hair (b).

According to this question, a black rabbit whose mother is brown haired (bb) is crossed with a brown hair rabbit. This means that the black rabbit will have a genotype 'Bb' while the brown rabbit will have a genotype 'bb'. Each parent will produce the following gametes:

Bb - B and b

bb - b and b

Using these gametes in a punnet square (see attached image), the following proportion of offsprings will be produced:

Bb, Bb, bb and bb

This means that the;

Genotypic ratio = 1 Bb: 1 bb

Phenotypic ratio = 1 black rabbit : 1 brown rabbit

an expert in or student of meteorology; a weather forecaster.

This configuration is identical to that of the noble gas Argon, with the loss of the two 4s electrons, leaving only the stable 3d and 4p electrons.

The element Ca, Calcium must lose two electrons to attain a noble gas electron configuration. Metals tend to lose electrons under specific conditions to acquire a noble gas electron configuration. The loss of electrons makes the metal ion positively charged. When metals lose electrons, the cation produced has an electronic configuration equivalent to that of the preceding noble gas.

The electronic configuration of the preceding noble gas of calcium is Ar, which is [18]2, 8, 8,2.To attain the noble gas electronic configuration of Argon, calcium must lose two electrons, thus giving rise to the calcium ion Ca2+.

This indicates that the Ca2+ ion would have a noble gas electronic configuration similar to that of Ar. The electron configuration of Ca2+ is[18]2,8. This configuration is identical to that of the noble gas Argon, with the loss of the two 4s electrons, leaving only the stable 3d and 4p electrons.

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Answer:

The pressure increases and the volume remains constant

Explanation:

Answer:

Atomic radius is directly proportional to Metallic reactivity in group 2.

Explanation:

Atomic radius is directly proportional to Metallic reactivity in group 2.

As we move down the group in group 2 which is called as the alkaline earth metals, the atomic number increases due to which the subshell increases. And the outermost shell's electron are less tightly held to the nucleus of the atom. Since the electrons are loosely held that means they can easily participate in reactions and that what makes it reactive down the 2nd group. Therefore alkaline earth metals with higher atomic number are more chemically reactive.

Answer:

metro= 22g

Explanation:

Protein shake -------------> Ribosome

Paper bag -------------> Vacuole

Packing candles -------------> Golgi Apparatus

im not 100% sure if paper bag and packing candles is correct.

Answer:\(16.93\times 10^{23}\ \text{molecules}\)

Explanation:

Given

Mass of \(CH_4\) \(m=45\ gm\)

Molar mass of \(CH_4\) is \(12+4\times1=16\)

No of moles of \(CH_4\) \(=\dfrac{\text{Mass}}{\text{Molar mass}}=\frac{45}{16}\)

No of Molecules in 45gm of \(CH_4\) is

\(\Rightarrow N_A\times\frac{45}{16}=6.022\times 10^{23}\times \frac{45}{16}\\\Rightarrow 16.93\times10^{23}\ \text{molecules}\)

We can predict the acid-base properties of a binary oxide in water based on the electronegativity difference between the two elements that make up the oxide.

To predict the acid-base properties of a binary oxide in water, we first need to understand what a binary oxide is. A binary oxide is a compound composed of two elements, one of which is oxygen. These oxides can be classified into acidic, basic, or amphoteric (having both acidic and basic properties) based on their behavior in water.
To predict the acid-base properties of a binary oxide in water, we need to look at the electronegativity difference between the two elements that make up the oxide. If the electronegativity difference is high, then the oxide will be acidic. An acidic oxide will react with water to form an acid, and it will donate a proton to the water molecule. For example, sulfur dioxide (SO2) is an acidic oxide that reacts with water to form sulfuric acid (H2SO4).
On the other hand, if the electronegativity difference between the two elements is low, then the oxide will be basic. A basic oxide will react with water to form a base, and it will accept a proton from the water molecule. For example, sodium oxide (Na2O) is a basic oxide that reacts with water to form sodium hydroxide (NaOH).
If the electronegativity difference is moderate, then the oxide will be amphoteric and will exhibit both acidic and basic properties. An example of an amphoteric oxide is aluminum oxide (Al2O3).
In summary, we can predict the acid-base properties of a binary oxide in water based on the electronegativity difference between the two elements that make up the oxide. If the difference is high, the oxide is acidic, if the difference is low, the oxide is basic, and if the difference is moderate, the oxide is amphoteric.

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2.67×\(10^{2}\)g  of \(Al_{2} Br_{6}\) form when 6. 00 moles of bromine react completely.

As per the chemical equation 2 moles of Aluminum react with 3 moles of Bromine to generate 2 moles of Aluminum Bromide

Molecular Weight of Al= 27 g/mol

Molecular Weight of Bromine= 159.8 g/mol

Molecular Weight of Aluminum Bromide= 266.7 g/mol

So,

Moles of Br = 6 moles

Moles of Al  = \(\frac{2}{3} * 6\) = 4moles

similarly,

moles of \(Al_{2} Br_{6}\) = \(\frac{1}{6} * 6\) = 1mole

Moles of \(Al_{2} Br_{6}\)  =  \(\frac{weight}{molecular weight}\)

1 mole = \(\frac{weight}{266.7}\)

weight = 2.67×\(10^{2}\)g

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Answer:

B

Explanation:

A hypothesis is a proposed explanation for a phenomenon. It is what you think will happen in the experiment.

A is wrong, it is a fact.

C is wrong, it is a question.

D is wrong, it is an observation,

Answer:B. If mosquitoes are given a light in a dark room, they will fly toward the light.

Explanation:

Answer:

A dam like structure used to capture energy from masses of water moving in or out of a bay of rivers due to tidal force is called tidal barrage.

Explanation:

It may help you to solve question.