if your mass was 200 grams what would your weight be on this planet.

In this question, we have to use Graham's law of effusion in order to find the molar mass of this unknown gas, the formula is the following:

r1/r2 = √ M2/M1

Where:

r1 = rate of gas 1, in this case oxygen, 625 m/sec

r2 = rate of gas 2, unknown gas, 425 m/sec

M1 = molar mass of gas 1, oxygen, 32g/mol

M2 = molar mass of gas 2, unknown

Adding the values into the formula:

625/425 = √ M2/32

1.47 = √ M2/32

(1.47)^2 = M2/32

2.16 = M2/32

M2 = 32 * 2.16

M2 = 69.12g/mol is the molar mass of this gas

The positive charge on the N atom in triethylammonium chloride is more polar than the uncharged N atom in triethylamine which is responsible for it being more soluble in water.

This is defined as the amount of solutes which is dissolved in a solvent such as water and is based on different factors such as temperature, surface area etc.

The positive charge on the N atom in triethylammonium chloride is more polar than the uncharged N atom in triethylamine which makes it more polar thereby increasing its interactions with water.

This leads to an increased solubility and is therefore the most appropriate choice.

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Answer:

Renewable resources include biomass energy (such as ethanol), hydropower, geothermal power, wind energy, and solar energy. Biomass refers to organic material from plants or animals.

so its false

Answer:

True

Explanation:

Material resources are materials found in the natural world that have practical use and value for humans. Material resources include wood, glass (which comes from sand), metals, edible plants, and plastics (which are made from natural chemicals). Renewable material resources, like glass, can be re-created easily.

The number of moles of H atoms present in 29,680,475,421,226,147,000,000,000 molecules of CH4 is 19.76.

To determine the number of moles of H atoms present in the given number of molecules of CH4, we need to first determine the number of H atoms present in one molecule of CH4.
CH4 molecule consists of 1 carbon atom and 4 hydrogen atoms. Therefore, one molecule of CH4 contains 4 H atoms.
Now, let's use Avogadro's number to convert the given number of molecules of CH4 to the number of moles.
Avogadro's number (NA) is defined as the number of atoms or molecules in one mole of a substance, which is approximately equal to 6.02 x 10^23.
So, the number of moles of CH4 is calculated as follows:
Number of molecules of CH4 = 29,680,475,421,226,147,000,000,000
Number of moles of CH4 = (Number of molecules of CH4) / (Avogadro's number)
Number of moles of CH4 = 29,680,475,421,226,147,000,000,000 / 6.02 x 10^23
Number of moles of CH4 = 4.93
Since each molecule of CH4 contains 4 H atoms, the total number of H atoms present in the given number of molecules of CH4 is:
Number of H atoms = (Number of molecules of CH4) x (Number of H atoms per molecule of CH4)
Number of H atoms = 29,680,475,421,226,147,000,000,000 x 4
Number of H atoms = 1.19 x 10^26
Now, let's calculate the number of moles of H atoms by dividing the total number of H atoms by Avogadro's number:
Number of moles of H atoms = (Number of H atoms) / (Avogadro's number)
Number of moles of H atoms = 1.19 x 10^26 / 6.02 x 10^23
Number of moles of H atoms = 19.76
Therefore, the number of moles of H atoms present in 29,680,475,421,226,147,000,000,000 molecules of CH4 is 19.76.

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Answer:

you can simply answer vl/t1=v2/t2

The concentration of the MgCl2 solution, prepared by dissolving 23.80 g of solute in enough water to form 500 mL of solution, is approximately 0.1258 M.

To determine the concentration of a MgCl2 solution, we need to calculate the amount of solute (MgCl2) dissolved in the solution and express it in terms of concentration, typically in units of molarity (M).

Given that 23.80 g of MgCl2 was dissolved in enough water to form 500 mL of solution, we can start by converting the volume from milliliters to liters:

Volume of solution = 500 mL = 500/1000 = 0.5 L

Next, we calculate the moles of MgCl2 using its molar mass. The molar mass of MgCl2 is the sum of the atomic masses of magnesium (Mg) and two chlorine (Cl) atoms:

Molar mass of MgCl2 = 24.305 g/mol (Mg) + 2 * 35.453 g/mol (Cl) = 95.211 g/mol

Moles of MgCl2 = mass of MgCl2 / molar mass of MgCl2 = 23.80 g / 95.211 g/mol

Now, we can calculate the concentration using the moles of solute and the volume of the solution:

Concentration (Molarity) = Moles of solute / Volume of solution

Concentration = moles of MgCl2 / 0.5 L

Finally, we substitute the calculated values:

Concentration = (23.80 g / 95.211 g/mol) / 0.5 L

Concentration = 0.5 * (23.80 g / 95.211 g/mol)

Concentration ≈ 0.1258 mol/L or 0.1258 M

Therefore, the concentration of the MgCl2 solution is approximately 0.1258 M.

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Answer: simple and complex.

Explanation:These are also called simple sugars. They're found in refined sugars, like the white sugar you see in a sugar bowl. If you have a lollipop, you're eating simple carbs.

Phenylephrine is a phenylethanolamine, whereas phenylephrine hydrochloride is a salt. It is the product when phenylephrine reacts with hydrochloric acid. The cation in the salt has an additional hydrogen atom bound to the nitrogen of phenylephrine. The anion is chloride.

Phenylephrine is a compound belonging to the class of phenylethanolamines, which are a type of organic compounds containing a phenyl group attached to an ethanolamine moiety.

Phenylephrine hydrochloride, on the other hand, is a salt form of phenylephrine where the phenylephrine molecule has reacted with hydrochloric acid to form a salt.

During the reaction between phenylephrine and hydrochloric acid, the hydrogen atom from the hydrochloric acid is transferred to the nitrogen atom of phenylephrine, resulting in the formation of phenylephrine hydrochloride.

The cation in the salt, phenylephrine hydrochloride, has an additional hydrogen atom bound to the nitrogen of phenylephrine.

The anion in phenylephrine hydrochloride is chloride, which is derived from the hydrochloric acid used in the reaction.

In summary, phenylephrine is a phenylethanolamine, phenylephrine hydrochloride is a salt formed by reacting phenylephrine with hydrochloric acid, the cation has an additional hydrogen atom bound to the nitrogen, and the anion is chloride.

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Precautions need to be observed when using methanol and a flame are wearing a mask and gloves, performing experiment from a distance and in a careful and safe way.

Methanol burns with a clear, clean flame which is dangerous if not carried properly. Wearing a mask and gloves during experiment in order to safe the hands and face from burning.

Performing experiment from a distance and in a carful way avoids the chances of accident so we can conclude that wearing a mask and gloves, performing experiment from a distance and in a careful and safe way are the precautions are needed.

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The initial concentration of acetic acid if concentration of NaOH is 0.32M is 7.69M when performing the titration when the initial burette was at 1.45 ml and the final volume was 34.89 ml.

Given the initial volume of burette was (V1) = 1.45 ml

The final volume reading of burette was (V2) = 34.89mL

The concentration of NaOH (M2) = 0.32M

Let the concentration of acetic acid = M1

We know that M1V1 = M2V2

M1(1.45 mL) = 0.32 M(34.89 mL)

M1 = 7.69M (acetic acid)

Hence the the initial concentration of acetic acid is 7.69M if concentration of NaOH is 0.32M.

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complete question: In performing the titration in part a, the initial buret was at 1.45 ml and the final volume was 34.89 ml. what is the initial concentration of acetic acid if concentration of naoh is 0.32M?

Cation Anion Ionic Compound NiCl2 Ni2+ Cl- An ionic compound is a particular kind of chemical compound made up of electrostatically attracted positively charged ions (cations) and negatively charged ions

Nickel and chlorine ions combine to form the inorganic substance nickel(II) chloride (NiCl2). It is a crystalline solid that is greenish-yellow and soluble in water. The positively charged Ni2+ ion combines with anionic ligands to generate coordination compounds like NiCl2, which contains chloride (Cl-). In the industrial setting, nickel is electroplated onto metal surfaces using NiCl2 as a catalyst. Additionally, it is utilised in the manufacture of nickel-cadmium batteries as well as pigment and dye synthesis. When working with the substance, safety measures must be followed because it is dangerous if swallowed or breathed.

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There are 20 grams of Sodium hydroxide in a molar solution that has a volume of 500 cm3.

Caustic soda and lye are two other names for sodium hydroxide. It is a typical component of soaps and cleansers. Sodium hydroxide seems to be a white, unscented solid at room temperature. Sodium hydroxide is a colorless, odorless liquid. Strong acids and water can cause explosive reactions with it.

Molarity is calculated by

moles (solute) / volume of solution in L

No. of moles = mass / molar mass

We have to find mass of sodium hydroxide (NaOH)

As we know, in 1 L (1000 cm³) of molar solution there is 40 gram of NaOH present.

From using this statement, 500 cm³ of a molar solution, means half liter of a molar solution contain -

= 40 / 2

= 20 gram of NaOH.

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p-Dichlorobenzene is more soluble in hexane than in water. p-dichlorobenzene, also known as para-dichlorobenzene, is a type of chlorinated hydrocarbon that is commonly used as a moth repellent and deodorizer.

In terms of its solubility, p-dichlorobenzene is considered to be only slightly soluble in water, with a solubility of around 5.5 mg/L at 25°C. This means that it will not dissolve very well in water and will tend to remain as a separate layer or suspension.

On the other hand, p-dichlorobenzene is much more soluble in organic solvents such as hexane, with a solubility of around 14 g/L at 25°C. This means that it will dissolve readily in hexane and similar solvents, forming a homogeneous solution.

Overall, the solubility of p-dichlorobenzene is relatively low in water but much higher in organic solvents. This is due to the fact that it is a nonpolar compound, which means that it is not attracted to the polar molecules that make up water. Instead, it is attracted to other nonpolar molecules, which are abundant in organic solvents like hexane.

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Answer:

952.2g SO3

Explanation:

Molar mass of C4H8S2 is 120.2363 g/mol

Mol in 750.0g = 750.0/120.2363 = 6.238 mol

1mol C4H8S2 produces 2 mol SO3

6.238 mol will produce 2×6.238 = 12.476 mol SO3

Molar mass SO3 = 32+3×16 = 80.0g/mol

Theoretical yield = 12.476×80.0 = 998.08g

The actual yield is 95.4%

Actual mass-produced = 95.4/100×998.08 = 952.2g SO3 produced

Hope it will help you.

Answer:B

Explanation: according  to the law of electrostatics it states that  "unlike charge attract each other and like charges repel each other ".

The two geologic events which occur very slowly as a result of tectonic forces and movement are convection in the mantle and plate subduction.

This is a term which is referred to as the process in which there is collision between two of Earth's tectonic plates, where one plate sinks into the mantle underneath the other plate.

This is caused by geologic events which occur very slowly as a result of tectonic forces while on the other hand, mountains and volcanoes occur abruptly which is therefore the reason why options A and C were chosen as the correct choice.

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Answer: A and C

Explanation:

Answer:

True

Explanation:

Water that seeps through rocks and soil into the ground is called groundwater. Freshwater is stored underground as groundwater. The total volume of open space in which the groundwater can reside is porosity. Porosity determines the amount of water that a rock or sediment can contain. In sediments or sedimentary rocks, the porosity depends on grain size, the shapes of the grains, the degree of sorting, and the degree of cementation. The combination of water storage (porosity) and flow (permeability) makes a good aquifer—a rock unit or sediment that contains usable groundwater. Well-sorted sediments (i.e., uniform grain size) have higher porosity because smaller sediment particles do not fill in the spaces between the larger particles.

Volume = 33.3 mL=0.0333L ,of 3.00 m sulfuric acid that contains 9.809 g of H2SO4 solute (98.09 g/mol).

In this case, according to the given information,

it is necessary for us remember that the molarity is calculated by dividing the moles by the volume of the solution in litres so the volume is calculated by dividing moles by the given molarity.

However,

               we first need to calculate the mole given the mass and molar mass of the solute, H2SO4:

  n=9.809 g /98.09g/mol  = 0.1 mol

Thus the volume turns out :

V=0.1mol/3.00mol/L

V=0.0333L

V=33.3mL,

Volume = 33.3 mL=0.0333L ,of 3.00 m sulfuric acid that contains 9.809 g of H2SO4 solute (98.09 g/mol).

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Explanation:

M = molar mass

p= percentage abundance

\(rel.atm.mass = \frac{ M1p1 + M2p2 + M3p3}{100} \\ r.a.m = \frac{24 \times 78.99 + 25 \times 10 + 26 \times 11.01}{100} \\ r.a.m = \frac{1895.76 + 250 + 286.26}{100} \\ = \frac{2432.02}{100} \\ 24.32\)

BRAINLIST

Answer:

Extrusive and intrusive are the two major types of igneous rocks. On the Earth's surface, extrusive rocks are created from lava, which is magma that has erupted from the underground. Intrusive rocks are formed from magma within the planet's crust that cools and solidifies.

Explanation:

Yeet

Answer:

C

Explanation:

If a disaccharide such as lactose tested positive using Benedict's test, it would indicate that the carbonyl functional group is present in the reducing sugar form of the disaccharide. In lactose, the carbonyl group is located in the glucose unit of the molecule.

Benedict's test is used to detect the presence of reducing sugars, which are sugars capable of reducing the copper(II) ions in the Benedict's reagent to form a red precipitate of copper(I) oxide. This reaction occurs when the carbonyl group of the sugar undergoes oxidation. Since lactose contains a carbonyl group in the glucose unit, it can undergo oxidation and produce a positive result in the Benedict's test.

In conclusion, if lactose tests positive in the Benedict's test, it indicates that the carbonyl functional group is present in the glucose unit of the lactose molecule.

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Answer:

A. protons

I hope this helps!

Answer:

A.

Explanation:

i just took the test and chose A.protons. lily~chan hopes she helps

The person will live  73.62 years

The heartbeats 80 times in 1 minute

Therefore , 1 heartbeat takes \(1/80 minutes\) time

In whole life number of heartbeats = \(3.1* 10^{9}\)

Thus, time in which \(3.1* 10^{9}\) heart beat will occur = \(3.1* 10^{9} * 1/80 minutes\)

                                                                                  = \(0.03875 * 10^{9}\) minutes

Since 1 minutes =\(1.90259 * 10^{-6}\) year

Therefore,  \(0.3875 * 10^{9}\) minutes = \(0.03875 * 10^{9}\) * \(1.90259 * 10^{-6}\) year

                                                     = \(.073625* 10^3\) years

                                                     = 73.62 years

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The triatomic form of oxygen, with three oxygen atoms bonded together, is called ozone (O₃).

Ozone is a pale blue gas that has a distinctively sharp odor, and it is formed naturally in the atmosphere by a chemical reaction between oxygen molecules and ultraviolet light.

Ozone is also formed as a byproduct of some industrial processes and can be used for various applications, such as in water treatment and air purification systems.

However, high concentrations of ozone can be harmful to human health and the environment, and it is classified as a pollutant. Therefore, it is important to regulate and monitor ozone levels to maintain a healthy and safe environment for all living beings.

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Ionic compounds are solid crystals at room temperature because of the strong electrostatic forces of attraction between oppositely charged ions.

Ionic compounds consist of positively charged ions, called cations, and negatively charged ions, called anions, held together by ionic bonds. These bonds are formed through the transfer of electrons from the cations to the anions, resulting in a lattice structure in which each ion is surrounded by ions of the opposite charge.

The electrostatic forces of attraction between the cations and anions in the lattice are very strong and hold the ions together in a rigid structure, making the compound a solid crystal at room temperature.

Furthermore, ionic compounds have high melting and boiling points due to the strong ionic bonds that must be overcome to break the lattice structure and separate the ions. Therefore, ionic compounds are generally solid at room temperature and have a crystalline structure.

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Answer:

in an ionic bond, atoms lose valence electrons and become positively charged

Explanation:

To clarify, the atom that loses the electrons becomes a positively charged ion (cation), and the atom that gains them becomes a negatively charged ion (anion).

Gasoline blending in petroleum refineries involves analyzing the properties of different components and determining the optimal mixing ratios to produce gasoline that meets specific octane rating and quality requirements.

Gasoline blending is a critical process in petroleum refineries where different components are combined to produce the desired gasoline product. In this example, the challenge is to blend gasoline from three different components.

To solve the gasoline blending problem, various factors need to be considered such as the desired octane rating, volatility, and environmental regulations. The first step is to determine the optimal proportion of each component based on their individual characteristics. This involves analyzing the properties of each component, such as its research octane number (RON), motor octane number (MON), and vapor pressure.

The second step is to develop a blending strategy that achieves the desired gasoline specifications. This involves determining the appropriate mixing ratios of the three components to meet the target octane rating and other quality requirements. The blending process requires precise calculations and adjustments to ensure the final gasoline product meets the desired specifications.

Additionally, economic considerations play a role in gasoline blending. The cost of each component and the market demand for specific gasoline grades can influence the blending decisions. Refineries aim to optimize the blend to minimize costs while meeting quality standards.

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The characteristics and the type of molecular bond they describe:

1. Bonds found in Halite (between Na⁺ and Cl⁻): Ionic bond

2. Bonds found between Si and O in the Si-O tetrahedron: Covalent bond

3. Bonds inside the water molecule (between the H and O): Covalent bond

4. Bonds that exist between two water molecules: Hydrogen bond

5. Strongest bond type: Covalent bond

6. Weakest bond type: Van der Waals bond

7. Bonds that are used by water to dissolve salt: Ionic bond

The ionic bond is a type of molecular bond found in halite (between Na⁺ and Cl⁻). The Si-O tetrahedron is held together by a covalent bond. The bond inside the water molecule (between the H and O) is also a covalent bond. The hydrogen bond is the type of bond that exists between two water molecules. The covalent bond is the strongest bond type, while the van der Waals bond is the weakest bond type. Water uses the ionic bond to dissolve the salt.

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Answer:

number 3.

Explanation:

Answer:

3

Explanation: