the molarity of a 1.0 molal sodium chloride solution can be obtained by using which of the following? a. volume of the solution c. solubility of glucose in water e. density of the solution b. temperature of the solution d. degree of dissociation of glucose

Answer: D?  

Explanation: The mitochondrion (plural mitochondria) is a membrane-bound organelle found in the cytoplasm of eukaryotic cells. It is the power house of the cell; it is responsible for cellular respiration and production of (most) ATP in the cell.

Answer: If one mole of carbon monoxide has a mass of 28.01 g and one mole of carbon dioxide has a mass of 44.01 g , it follows that the reaction produces 44.01 g of carbon dioxide for every 28.01 g of carbon monoxide.

Explanation: (May Be Unrelated?)

Answer:

i think kinetic energy sorry if I'm wrong.

Answer:

Fatty acids and glycerol.

Explanation:

I hope this helps! :)
(The process is called lipolysis by the way)

Answer:

B. Secondary pollutant

Explanation:

A primary pollutant is directly emitted into the atmosphere. Volcano eruptions and emissions from cars can result in primary pollutants in the air.

Secondary pollutants are not directly put in the atmosphere. They are created when two or more primary pollutants in the atmosphere react. One example is smog.

Another example is acid rain. If sulphur dioxide, nitrogen dioxide and water react, then acid rain is formed. Therefore, acid rain must be a secondary pollutant.

The best answer choice is B. secondary pollutant

Answer:

The answer is B second pollutant

Explanation:

Acid rain occurs when sulfur dioxide in the atmosphere is oxidized in the presence. Acid rain occurs when sulfur dioxide in the atmosphere is oxidized in the presence of nitrogen dioxide.

Answer:

It must be based on a hypothesis

Explanation:

if i remember correctly

The balanced chemical reaction for the decomposition of hydrogen peroxide into water and oxygen is 2H2O2 → 2H2O + O2. The coefficients in this reaction are the simplest whole number coefficients that balance the number of atoms of each element on both sides of the equation.

. On the reactant side, we have 2 hydrogen atoms, 2 oxygen atoms, and 1 oxygen atom. On the product side, we have 2 hydrogen atoms and 2 oxygen atoms. To balance the number of oxygen atoms, we need to multiply the H2O2 on the reactant side by 2. This gives us 4 oxygen atoms on the reactant side and 2 oxygen atoms on the product side. The number of hydrogen atoms is already balanced, so the reaction is now balanced.

The states of the reactants and products are not included in the balanced chemical reaction because they are not important for balancing the reaction. The states of the reactants and products can be included in the balanced chemical reaction, but this is not necessary.

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The lines in a line graph aid in the fairly early detection of trends, allowing the viewer to make predictions about the data that has not yet been recorded.These are appropriate for illustrating the data points since, given one variable, the other is simple to ascertain.

A line graph, often known as a line chart, is a visual representation of data that is continuously changing over time.

There are two axes. in a line graph, the occurrences and categories being compared throughout time are shown on the x-axis (abscissa), and the scale, which is a group of integers that reflects the data and is divided into equal intervals, is shown on the y-axis (ordinate).

Depending on the data, the graph's lines may either decline or ascend. It is practical to plot time graphs along the x/y axis since it shows the rise and fall of data points in great detail.

The reader may readily see changes in one group over time by choosing the appropriate scales for each axis (time on the x-axis and change is measured on the y-axis).

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To make  type of kidney stone, calcium oxalate,  1 mole of CaCl₂ and 1 mole Na₂C₂O₄ as reactants. The products and balance the chemical reaction is  one mole of CaC₂O₄ and two moles of NaCl. The correct option is b.

The Calcium and the oxalate stones make up the majority of the kidney stones. Many of the people who will develop the calcium-containing stones have the excessive calcium in their urine, that is known as the hypercalciuria.

The 1 mole of CaCl₂ and 1 mole Na₂C₂O₄  reaction is as follows :

CaCl₂   +  Na₂C₂O₄  ---->  CaC₂O₄   +  2NaCl

This is the balanced chemical equation. Therefore the option b is correct.

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The orchard will produce 8760 individual pieces of fruit each year.

What is break even ?

Break even refers to the point at which the total cost of producing a product or providing a service is equal to the total revenue generated from selling that product or service. At the break-even point, there is no profit or loss, and the business is said to be "breaking even."

In other words, the break-even point is the level of sales at which the business is earning enough revenue to cover all its costs, including fixed costs (e.g., rent, salaries) and variable costs (e.g., cost of goods sold, marketing expenses). Beyond this point, any additional sales or revenue will generate a profit for the business.

a. To calculate how much fruit the orchard will produce each year, we need to multiply the number of trees by the number of fruits each tree bears:

Total number of fruit = 120 trees × 73 fruit/tree

Total number of fruit = 8760

Therefore, the orchard will produce 8760 individual pieces of fruit each year.

b. To calculate the price at which you need to sell each piece of fruit to break even, we need to divide the total cost of upkeep and care by the total number of fruit produced, and then add this to the cost of producing each piece of fruit. This will give us the minimum price at which we need to sell each piece of fruit to cover our costs:

Cost per fruit = (Upkeep cost + Cost of producing each fruit) / Total number of fruit

Since the upkeep and care of the orchard costs $850 per year, and the orchard produces 8760 individual pieces of fruit each year, the cost of upkeep and care per fruit is:

Cost of upkeep and care per fruit = $850 / 8760

Cost of upkeep and care per fruit = $0.097

Therefore, the minimum price at which we need to sell each piece of fruit to cover our costs is:

Minimum price per fruit = Cost per fruit + Cost of upkeep and care per fruit

Minimum price per fruit = Cost of producing each fruit + $0.097

Without information about the cost of producing each piece of fruit, we cannot calculate the minimum price required to break even.

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.

d. methane, methanol, formaldehyde, formic acid, carbon dioxide

Methane (CH4) is the most reduced state of the molecules listed since it has four hydrogen atoms and no atoms that can be oxidized.

C + 4.H = 0

C + 4.(1) = 0

C = -4

Methanol (CH3OH) is the second most reduced state because it includes an additional hydrogen atom.

C + 3.(H) + 1.(O-single bond) = 0

C + 3.(1) + 1.(-1) = 0

C = -2

than formaldehyde (CH2O) which is the third most reduced state.

C + 2.H + O = 0

C + 2.(1) + (-2) = 0

C = 0

formic acid (HCOOH) is the fourth most reduced state as it includes one more oxygen atom and one more hydrogen atom.

C + 1.(H) + 1.(O-double bond) + 1.(O-single bond) = 0

C + 1.(1) + 1.(-2) + 1.(-1) = 0

C = 2

carbon dioxide (CO2) is the most oxidized state as it contains two oxygen atoms which can be oxidized.

C + 2.(O-double bond) = 0

C + 2.(-2) = 0

C = +4

Therefore, the order of molecules from most reduced to most oxidized is methane, methanol, formaldehyde, formic acid, and carbon dioxide.

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A potassium atom's ground state electron configuration is 1s2, 2s2, 2p6, 3s2, 3p6, 4s1.

An atom's electron configuration is a picture of how electrons are arranged in relation to orbital shells and subshells. Consequently, this is potassium's electron configuration.

Making Electron Configurations in Writing. Write the energy level (the period) first, then the subshell that needs to be filled, and finally the superscript, which indicates how many electrons are in that subshell. The atomic number, Z, is the sum of all the electrons.

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volume of the platinum bar is 30 cm3, density of the platinum bar is 25g/cm3

It is assumed that,

750 g is the mass of a platinum bar.

L = 5 cm is the bar's length.

The width of the bar is 4 cm.

Bar width, 1.5 cm in height

V=l*b*h v=4*5*1.5=30cm3 is the volume of the bar.

The density of the platinum bar needs to be determined. Any substance's density can be calculated using:

The density of the platinum bar is 25g/cm3 and the volume of the platinum bar is 30 cm3.

So, the platinum bar's density. Therefore, this is the necessary solution.

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The Lewis structure is a simplified representation of the valence shell electrons in a molecule. It is used to show how electrons are arranged around individual atoms in a molecule. Electrons are shown as "dots" or to connect electrons as a line between two atoms.

1) Ethyl acetate: \(C_{4}H_{8}O_{2}\)

Ethyl acetate is a widely used solvent, especially for paints, varnishes, lacquers, cleaning compounds, and perfumes. Like last week's MOTW, dichloromethane, is used as a solvent to reduce coffee grounds. In the laboratory, ethyl acetate is a common solvent for column and thin layer chromatography.

2. Acetaminophen:

Acetaminophen is an active ingredient in hundreds of over-the-counter (OTC) and prescription medications. It relieves pain and fever. Acetaminophen can also be combined with other active ingredients in medications that treat allergies, coughs, colds, flu, and insomnia. In prescription  acetaminophen is found along with other active ingredients to treat severe pain. Acetaminophen can cause serious liver damage if used more than prescribed. The FDA has taken action to improve consumer safety when using acetaminophen.

3) Phenacetin:

Phenacetin has been used as an analgesic and antipyretic in both human and veterinary medicine for many years. It was introduced in treatment in 1887 and was widely used in analgesic mixtures until it was included in kidney diseases (nephropathy) due to the abuse of analgesics. Phenacetin was also once used as a stabilizer for hydrogen peroxide in hair bleaching preparations.

4-Caffeine

Caffeine is a stimulant, which means it increases activity in your brain and nervous system. Caffeine also increases the circulation of chemicals in the body like cortisol and adrenaline. In small doses, caffeine can make you feel relaxed and focused.

5.Aspirin

Aspirin is a common medicine to relieve minor aches, pains, and fever. Also, people use it as an anti-inflammatory or blood thinner.

Aspirin can buy by people can buy  over the counter without a prescription. Daily benefits include relieving headaches, reducing inflammation, and reducing fever.

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Option (c) is correct. 3.80 x 10^24 atoms of oxygen are contained in 160 grams of N2O3. This is calculated by using the Avogadro's constant.

mass of N2O3 = 76.01 g/ mole

Moles of N2O3 = 160 grams / 76. 01 g/ mole

                          = 2.104

Mole can be defined as the amount of substance of a system which contains as many elementary entities as there are atoms in 0.012 kilogram of carbon 12.

moles of Oxygen = moles of N2O3 x number of oxygen atoms in N2O3

                             = 3 x 2.104  =6.315 moles

the atoms of oxygen = (6.315 moles x 6.02 x10 ^23 atoms) / 1 mole

                                    =3.80 x 10^24 atoms

here used Avogadro's constant. Avogadro's constant is the proportionality factor that relates the number of constituent particles in a sample with the amount of substance in that sample. It is an SI defining constant with an exact value of 6.02214076×10²³ reciprocal moles.

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Answer:

There is more space in a balloon with less gases meaning it can move around a lot faster

Explanation:

The final pressure of the hydrogen gas is approximately 2.41 atm when the temperature is lowered to -50°C.

In this problem, we are given the initial pressure and temperature of hydrogen gas inside a rigid container and asked to determine the final pressure of the gas if the temperature is lowered to a certain value.

To solve this problem, we will use the combined gas law, which relates the pressure, volume, and temperature of a gas:

P₁V₁/T₁ = P₂V₂/T₂

where P₁, V₁, and T₁ represent the initial pressure, volume, and temperature, respectively, and P₂, V₂, and T₂ represent the final pressure, volume, and temperature, respectively.

We are given that the initial pressure, P₁, is 3.5 atm and the initial temperature, T₁, is 50°C. We can convert the temperature to Kelvin by adding 273.15:

T₁ = 50°C + 273.15 = 323.15 K

We are also given the final temperature, T₂, which is -50°C. We can convert this to Kelvin as well:

T₂ = -50°C + 273.15 = 223.15 K

We want to solve for the final pressure, P₂. We can rearrange the combined gas law to solve for P₂:

P₂ = (P₁ × T₂ × V₁) / (T₁ × V₂)

Since the container is rigid, the volume does not change, so V₁ = V₂. Thus, we can simplify the equation to:

P₂ = (P₁ × T₂) / T₁

Substituting in the given values, we get:

P₂ = (3.5 atm × 223.15 K) / 323.15 K

P₂ ≈ 2.41 atm

Therefore, the final pressure of the hydrogen gas is approximately 2.41 atm when the temperature is lowered to -50°C.

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Water that is salty and chilly sinks to the ocean's bottom.Water is transported around the world by the huge ocean conveyor.Warm water is less thick and stays on the surface of the ocean whereas cold, salty water sinks to the bottom.Warm water is less dense than cold water.

As you just observed, as sea ice forms, salt is driven from the ice crystals, making the water around them saltier.Since the water in this saltier environment is denser, it sinks.The sinking water is replaced by surface water, which finally gets cold and salt enough to sink itself.

2. Sea Ice Aids in Preventing Global Warming.According to Tilling, sea ice separates the ocean from of the atmosphere like a "blanket."Sea ice blocks sunlight while also retaining heat already present in the ocean, preventing it from warming climate air above.

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Answer:

10%

Explanation:

Answer:

2.7 mL

Explanation:

The equation of the reaction is;

2AlBr3 + 3Cl2 -----> 2AlCl3 + 3Br2

Number of moles in 2.12 x 1022 formula units of aluminum bromide

1 mole of AlBr3 = 6.02 * 10^23 formula units

x moles = 2.12 x 1022 formula units

x = 2.12 x 1022 formula units  * 1 mole/ 6.02 * 10^23 formula units

x = 0.0352 moles of AlBr3

According to the reaction equation;

2 moles of AlBr3 produces 3 moles of Br2

0.0352 moles of AlBr3 produces 0.0352 moles  *  3 moles /2 moles

= 0.0528 moles of Br2

Mass of Br2 produced = 0.0528 moles of Br2 * 159.808 g/mol

Mass of Br2 produced = 8.44g

But density = mass/volume

volume = mass/density

volume of Br2 = 8.44 g/ 3.12 g/mL

volume of Br2 =  2.7 mL

Answer: same valence shell configuration and properties

Explanation:

The ionic composition of a neuron at rest is characterized by a relatively high concentration of intracellular K+ ions and a low concentration of intracellular Na+ ions.

At rest, the neuron's membrane potential is maintained at around -70mV, and this is due to the selective permeability of the membrane to K+ ions and the presence of K+ leak channels that allow for the passive diffusion of K+ ions out of the neuron and into the extracellular fluid.

During an action potential, there is a rapid and transient change in the ionic composition of the neuron. This change is characterized by a rapid influx of Na+ ions into the cell through voltage-gated Na+ channels, followed by a rapid efflux of K+ ions out of the cell through voltage-gated K+ channels.

After an action potential, the neuron enters a refractory period during which it is unable to generate another action potential. During this period, the neuron's membrane potential is temporarily more negative than its resting potential, due to the continued efflux of K+ ions out of the neuron through the open K+ channels.

This hyperpolarization of the neuron makes it more difficult to generate another action potential and ensures that action potentials occur in a one-way direction along the axon.

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Answer: 0.834 L

Explanation:

Volume is the scalar quantity that is the space required by the solution or the substance. The volume required for the 146.3g of 3.00M NaCl is 0.834 L.

Molarity is the concentration of the solution and is given as the ratio of the moles and the volume of the solution. The volume of the solution or the solute is inversely proportional to the molarity of the substance.

Molarity is given as,

\(\rm Molarity (M) =\rm \dfrac{ Moles(n) }{\text{Volume in L}}\)

Here,

Molarity of sodium chloride = 3.00M

Mass of sodium chloride = 146.3g

Molar mass of sodium chloride = 58.44 g/mol

Substituting values in the equation:

\(\begin{aligned} \rm Molarity &= \rm \dfrac{mass}{Molar \;mass \times Volume}\\\\\rm V &= \dfrac{146.3}{ 58.44 \times 3.00}\\\\&= 0.8344 \;\rm L\end{aligned}\)

Therefore, the volume of the sodium chloride required is 0.834 L

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Answer:

The SMRs can adjust their energy output using coolants and control rods.

Power plants can be built to fit locations with less demand or less space.

Explanation:

I think that it is but I am not sure.

Power plants can be built to fit locations with less demand or less space. The SMRs can adjust their energy output using coolants and control rods. The correct options are B and D.

A wireless communications technology that competes with traditional cellular services. The base station equipment supplier is the transmitter licensee in an SMR system.

Power plants can be built to accommodate locations with low demand or limited space. Coolants and control rods allow SMRs to adjust their energy output.

These advanced reactors, which are expected to range in size from tens to hundreds of megawatts, can be used for power generation, process heat, desalination, or other industrial applications.

Light water or other non-light water coolants, such as a gas, liquid metal, or molten salt, may be used as a coolant in SMR designs.

Thus, B and D are correct options.

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B. when water changes state from a solid to a liquid, thermal energy is absorbed.

The process of moving energy from one system to another, such as through the transmission of heat, work, or mass, is known as energy transfer.

It should be noted that the transformation of energy into another form or the transfer of energy from one location to another.

The mode of energy transfer are:

In summary, thermal, radiant, chemical, nuclear, electrical, motional, acoustic, elastic, and gravitational energy are some of the different types of energy.

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Answer:

The oxidation state of carbon in CaC204 is 3

Answer:

liquid

Explanation:

The new volume of the balloon will be determined by the Ideal Gas Law.

The Ideal Gas Law is a mathematical equation used to describe the behavior of an ideal gas under a given set of conditions. It states that, at a constant temperature and pressure, the pressure, volume and amount of gas present are all directly proportional.

This law states that the product of the pressure, volume, and temperature of a gas is a constant.
Since the pressure of the balloon remains constant, the new volume is inversely proportional to the temperature.
Therefore, the new volume can be calculated by dividing the original volume (13.5 liters) by the ratio of the original temperature (248 K) to the new temperature (324 K),
which is 248/324 = 0.76.
The new volume of the balloon is then 13.5 liters / 0.76 = 17.76 liters.

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2 moles of ammonia and 2.5 moles of oxygen gas will produce 2 moles of nitric oxide and 3 moles of water.

The reaction between ammonia (NH3) and oxygen gas (O2) to produce nitric oxide (NO) and water (H2O) is shown below:4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g)The balanced equation shows that 4 moles of ammonia react with 5 moles of oxygen gas to produce 4 moles of nitric oxide and 6 moles of water. To determine the amount of products formed when a certain amount of reactants is used, we need to use stoichiometry.Suppose we react 2 moles of ammonia with 2.5 moles of oxygen gas. From the balanced equation, we can see that the ratio of moles of ammonia to moles of oxygen gas is 4:5. Therefore, ammonia is the limiting reagent because only 2 moles of ammonia are available, which is not enough to react with 2.5 moles of oxygen gas.To determine the amount of products formed, we will use the mole ratio from the balanced equation:4 moles NH3 : 5 moles O2 : 4 moles NO : 6 moles H2O2 moles NH3 is equivalent to (5/4) × 2 moles O2 = 2.5 moles O2So, 2 moles NH3 + 2.5 moles O2 → 2 moles NO + 3 moles H2O.The number of significant digits in the answer will depend on the number of significant digits in the given amounts of reactants.

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