What is the molarity of a solution made from dissolving 3.0 moles of Saline (NaCl) in 0.25 L of solution?

The molarity of the KMnO4 solution is 0.532 M (rounded to three decimal places).

To calculate the molarity of the KMnO4 solution, we need to use the stoichiometry of the reaction and the volume of the KMnO4 solution used in the titration.

Given:

Mass of H2O2 solution = 1.0 g

Concentration of H2O2 solution = 30 wt% (weight percent)

Volume of KMnO4 solution used = 22.143 mL

Molar mass of H2O2 = 34.01 g/mol

Step 1: Calculate the moles of H2O2 in the solution.

Moles of H2O2 = (Mass of H2O2 solution) / (Molar mass of H2O2)

= 1.0 g / 34.01 g/mol

= 0.0294 mol

Step 2: Calculate the moles of KMnO4 based on the stoichiometry of the reaction.

According to the balanced equation, the ratio of KMnO4 to H2O2 is 2:5.

Therefore, moles of KMnO4 = (Moles of H2O2) * (2/5)

= 0.0294 mol * (2/5)

= 0.01176 mol

Step 3: Calculate the molarity of the KMnO4 solution.

Molarity (M) = (Moles of KMnO4) / (Volume of KMnO4 solution in liters)

= 0.01176 mol / 0.022143 L

= 0.5316 M

Therefore, the molarity of the KMnO4 solution is 0.532 M (rounded to three decimal places).

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Answer:

osmosis

Explanation:

1

2

5

Explanation:

start from the left tor right

Answer:

c

Explanation:

Answer:

A. a best guess explanation

Explanation:

A scientific theory explains why something behaves the way it does and is usually backed up by different sources. They are not speculations and can be proven. Those which are speculations and are not proven are called hypothesis. A scientific theory can also be replaced, if it is found that it does not produce valid results, or if a better theory is proposed which is made of one or more old theories.

Answer:

Mass

Explanation:

I majored on Chemistry

Answer:

Mass

Explanation:

All forces require an input of mass

The London dispersion force is a type of intermolecular force that is present in all molecules, even those that lack a permanent dipole moment. This force is the weakest of the intermolecular forces and is caused by the temporary dipole moments that arise from the instantaneous polarizability of molecules.

The strength of the London dispersion force depends on a number of factors, such as the size, shape and charge of the molecule. Generally, larger, heavier molecules with a higher number of electrons will have stronger London dispersion forces than smaller, lighter molecules with fewer electrons.

Molecules with higher electronegativity, such as chlorine and fluorine, will also have stronger London dispersion forces than molecules with lower electronegativity, such as methane or ethane. Thus, the order of molecules from strongest to weakest London dispersion force interactions would be CH4, CH3Cl, CH2Cl2, and CHCl3.

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Taking into account the Charles' law, the temperature of the gas if the volume drops to 75.0 L is 246 K or -27 C.

Charles' law establishes the relationship between the temperature and the volume of a gas when the pressure is constant. This law says that for a given sum of gas at constant pressure, as the temperature increases, the volume of the gas increases and as the temperature decreases, the volume of the gas decreases. That is, the volume is directly proportional to the temperature of the gas.

Mathematically, Charles' law is a law that says that when the amount of gas and pressure remain constant, the ratio between volume and temperature will always have the same value:

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

Considering an initial state 1 and a final state 2, it is fulfilled:

\(\frac{V1}{T1}=\frac{V2}{T2}\)

In this case, you know:

Replacing in Charles's law:

\(\frac{100 L}{328 K}=\frac{75 L}{T2}\)

Solving:

\(T2x\frac{100 L}{328 K}=75 L\)

\(T2=\frac{75 L}{\frac{100 L}{328 K}}\)

T2= 246 K= -27 C

Finally, the temperature of the gas if the volume drops to 75.0 L is 246 K or -27 C.

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Answer:

Gravity and inertia

Explanation:

each plant does have magnetism but they are two far away from each other to cause anything to happen. Electricity just dosent make sense.

The approximate molarity of the trisodium citrate solution given to a participant with a body mass of 50 kg depends on the mass of trisodium citrate provided and the volume of the solution. Without this information, an exact molarity cannot be determined. However, assuming a standard dose and volume, the molarity can be estimated to be around 0.1 M.

The molarity of a solution is defined as the number of moles of solute per liter of solution. To calculate the molarity of the trisodium citrate solution given to a participant, we need more information such as the mass of trisodium citrate provided and the volume of the solution. Without this information, it is not possible to determine the exact molarity. However, if we assume that a standard dose of trisodium citrate is given, we can estimate the molarity. For example, if a 50 kg participant is given a trisodium citrate solution with a volume of 500 mL, we can assume that the molarity will be approximately 0.1 M. Please note that this is just an estimate and the actual molarity may vary depending on the specific conditions of the experiment.

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Answer:

1. Sodium (Na) is the most reactive due to its lower number of shells which enables the protons in it's nucleus to attract more electrons.

2. Calcium (Ca) is next as it is a group 2 element and they can be quite reactive.

3. Zinc (Zn) is the third reactive as transition metals are not very reactive.

4. Copper (Cu) is less reactive than Zinc because it is closer to the center of the periodic table and therefore has more stability.

5. Gold (Au) is the least reactive.

Answer:

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

\(volume = \frac{mass}{density} \\\)

From the question we have

\(volume = \frac{78}{7.8} \\ \)

We have the final answer as

Hope this helps you

Answer:

the outer core is important because the outer core is responsible for earth's magnetic field which protects earth from harmful particles that comes from sun and also contains some natural metal like nikle and iron.

is this much paragraph enough comment down below..

hope this helps you ☺️☺️

Explanation:

H2O water molecule

O3 Ozone

are some of common example of molecules

Answer:

50 years old

Explanation:

Antoine Lavoisier died by the guillotine at the age of 50 on May 8, 1794 in Paris.

Hope this helps...

- profparis

Answer:

Antoine Lavoisier died at the age of 50

This leads to the decreasing the volume will shift equilibrium in the direction of products.

Chemical equilibrium is the condition in which the reactants and products are both present in concentrations that have no further tendency to change over time, preventing any discernible change in the system's properties. In a state of neutral equilibrium, when an external force is applied, the line connecting the earth's centre and the centre of gravity falls within the base of the body.

A product is anything that can be provided to a market in order to satiate a customer's need or desire. It can be an item, a system, or a service that is made accessible for consumer usage in response to consumer demand. An insurance policy is an example of an intangible product because it can only be understood through indirect perception.

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Answer:

C. Daily Organizer. Also called an agenda. We usually write notes in them for school related things so the answer is pretty self explanatory.

Answer:

The element that is present in proteins but not in carbohydrates or fats is d) nitrogen.

Explanation:

Proteins are the only macromolecules among proteins, carbohydrates, and fats that contain nitrogen atoms. Nitrogen is a crucial component of amino acids, the building blocks of proteins, whereas carbohydrates and fats primarily consist of carbon, hydrogen, and oxygen atoms.

Answer:

0.55 atm

Explanation:

According to Dalton's law of partial pressures,

The total pressure is the summation of the partial pressures of individual gases in a sample of non-reactive gases.

Since Neon and Argon are noble gases, they do not react with each other. So we can apply Dalton's partial pressure law.

P total = P Ar + P Ne

2.39 atm = P Ar+ 1.84 atm

P Ar = 2.39 atm - 1.84 atm

       = 0.55 atm

According to the Dalton's law of partial  pressure the partial pressure of the argon is 0.55 atm.

Pressure is defined as the force applied on an object perpendicular to it's surface per unit area over which it is distributed.Gauge pressure is a pressure which is related with the ambient pressure.

There are various units by which pressure is expressed most of which are derived units which are obtained from unit of force divided by unit of area . The SI unit of pressure is pascal .

It is a scalar quantity which is related to the vector area element with a normal force acting on it.It is distributed over solid boundaries and across arbitary sections of fluid normal to the boundaries at every point.

In this case, pressure of gas argon is obtained by subtracting pressure of gas neon  from the total pressure ,that is 2.39-1.84=0.55 atmosphere.

Thus ,the partial pressure of gas  argon in atmosphere is 0.55 atmosphere.

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Answer:

A climograph is a graphical representation of the climate of a particular location over a period of time. It typically shows the average temperature and precipitation for a specific location over the course of a year, with the temperature plotted on the y-axis and the months of the year plotted on the x-axis.

The primary function of a climograph is to provide a visual representation of the climate of a particular location, which can be useful for understanding the weather patterns and temperature ranges that are typical for that location. Climographs can also be useful for comparing the climate of different locations, as they provide a convenient way to see how temperature and precipitation patterns differ from one place to another.

2,259.675kj/mol

10.16g of pentane is burned in a calorimeter, 9.87kg of water are heated from 21.6(degree) to 33.7(degrees), the molar heat of reaction for carbon dioxide will be

From the above statement , we have found

pentane  C5H12 = 10.16g

H2O =  9.87kg

TI = 21.6°C             T2 = 33.7°C

C5H12+8O2=5CO2+6H2O

as per the reaction, one mole of pentane gives 5 mole of carbon dioxide

now:

molar heat of CO2 = ncΔt ,

here n is number of mole, c is specific heat, t is temperature

Q = 5 ×37.35× 12.1

Q= 2,259.675kj/mol

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Answer:

D) Blender..................

Answer:

39.85

Explanation:

Answer:

313 Kelvin (K) = 39.850 Celsius (C)

1 K = -272.150 C 1 C = 274.150 K

Si el polímero tiene un grupo amida, entonces se considera poliamida, mientras que si el polímero tiene un grupo éster, entonces es una poliamida.

La poliamida es un tipo de polímero en el que una sustancia compuesta de moléculas largas de unidades múltiples. En este tipo de polímero, las unidades repetitivas de la cadena molecular están unidas entre sí por grupos amida.

El poliéster es una categoría de polímeros que contienen el grupo funcional éster en cada unidad repetida de su cadena principal. Como material específico, también se le llama tereftalato de polietileno (PET).

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The given reaction is a functional group transformation as it involves the conversion of an aldehyde functional group into an alcohol functional group. The reagent that can accomplish this transformation is LiAlH4. The correct option is 4.

LiAlH4 is a powerful reducing agent that can reduce various functional groups including aldehydes, ketones, and esters to their corresponding alcohols. After the addition of LiAlH4, the reaction mixture is treated with H3O+ to complete the reaction. This step is called acid work-up, and it helps to remove any excess LiAlH4 and to convert the intermediate aluminum hydride species into a stable alcohol product.

In summary, the reaction can be accomplished by adding LiAlH4 followed by H3O+ (then acid work-up). LiAlH4 reduces the aldehyde functional group to an alcohol, and H3O+ helps to complete the reaction and obtain the desired alcohol product. It is important to note that LiAlH4 is a strong reducing agent and must be handled with care as it can react violently with water and air.

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D. polar substances dissolve in one another, and nonpolar substances dissolve in one another

substances subject to equal amounts of pressure dissolve in one another

polar dissolves with polar

ionic dissolves with ionic

The balanced nuclear equation for the given reaction is:
249 98 Cf + 80 18 O → 263 106 Sg + 4 2 He
The new nuclide is 263 106 Sg.

To find the new nuclide produced in this reaction, we need to balance the nuclear equation. Given the information, we have:
¹⁸O + ²⁴⁹Cf → x + ⁴He
Here, ¹⁸O is the oxygen nucleus, ²⁴⁹Cf is the californium target, x is the new nuclide we want to find, and ⁴He is an alpha particle.
To balance the equation, we need to conserve the mass numbers (superscripts) and atomic numbers (subscripts):
Mass numbers: 18 + 249 = 4 + A_x
Atomic numbers: 8 + 98 = 2 + Z_x
Solving for A_x and Z_x:
A_x = 263
Z_x = 104
So, the new nuclide produced in this reaction is:
²⁶³₁₀₄Rf
This is the nuclide Rutherfordium-263 (Rf-263).

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The balanced nuclear equation is: ²⁰O + ²⁵²Cf → ¹²⁶Sg + 4¹n The new nuclide is Seaborgium.

Here, the oxygen nucleus (²⁰O) collides with a californium target (²⁵²Cf) to produce the new nuclide, which is seaborgium (¹²⁶Sg), and 4 neutrons (¹n). In this reaction, the new nuclide formed is seaborgium (¹²⁶Sg).

Based on the equation ²⁰O + ²⁵²Cf → ¹²⁶Sg + 4¹n, the new nuclide formed as a result of the experiment is seaborgium (Sg), with an atomic number of 126. Seaborgium is a synthetic element that is highly unstable and has a very short half-life, making it difficult to study and characterize. It is named after Glenn T. Seaborg, a prominent American nuclear chemist who made significant contributions to the field of nuclear chemistry.

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Answer:

4

Explanation:

Answer: pOH is the negative logarithm of the hydroxide ion content given by the expression: pOH = 14 – pH.

Explanation:

Answer:

70/100 X 2000 = 1400 tonnes of iron.

Explanation:

take the percentage of iron oxide and divide with overall amount of iron oxide using 2000 tonnes of hematite ore. 1400 tonnes of iron will be produced. this is not the percentage. if you want the percentage of iron produced just divide.

70/100 x 200 = 1400 tonnes of iron

percentage of iron produced = 70/1400 x 100 = 5 % of iron produced from 70% of iron oxide in 2000 tones of hematite ore

The right answer is given in the picture.

To find the formula of an ionic compound, first, identify the cation and write down its symbol and charge. Then identify the anion and note its sign and charge. Finally, the two ions combine to form an electrically neutral compound.

Particle diagram Elements and compounds can be represented using particle diagrams. This is a box with colored spheres drawn to represent atoms or molecules. These diagrams can represent elements and compounds and their molecular composition by the types of spheres and how they are connected. Particle diagrams are used to show particles, atoms, or molecules within matter. A diagram showing particles in a substance.

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