at the end of a reaction it is important to remove the solvent from a solid product (more than one answer may be correct)

short story about The Blind Date by Jeffrey Archer

The partial pressure of N₂ = 0.158 atm

The partial pressure of H₂ = 3.6 atm

The partial pressure of NH₃ = 0.22 atm

Mass of N2₂ = 4.97 g

Molar mass of N₂ = 28 g/mol

Mass of H₂ = 8.80 g

Molar mass of H₂ = 2 g/mol

Mass of NH₃ = 4.2 g

Molar mass of NH₃ = 17 g/mol

Total pressure (Pt) = 3.97 atm

Partial pressure of N₂ = ?

Partial pressure of H₂ = ?

Partial pressure of NH₃ = ?

First, we will find out the number of moles of each component

    Number of moles = mass / molar mass

    Number of moles of N₂ = 4.97 g / 28 g/mol

    Number of moles of N₂ = 0.1775 mol

    Number of moles of H₂ = 8.08 g / 2 g/mol

    Number of moles of H₂ = 4.04 mol

    Number of moles of NH₃ = 4.22 g / 17 g/mol

    Number of moles of NH₃ = 0.2482 mol

Total number of moles = 0.1775 mol + 4.04 mol + 0.2482 mol

Total number of moles = 4.4657 mol

Now find out the partial pressure for each component

partial pressure = number of moles of each / total number of moles × total pressure

    partial pressure of N₂ = (0.1775 mol / 4.4657 mol) 3.97 atm

    partial pressure of N₂ = (0.0397 mol) 3.97 atm

    partial pressure of N₂ =  0.158 atm

    partial pressure of H₂ = (4.04 mol / 4.4657 mol) 3.97 atm

    partial pressure of H₂ = (0.9047 mol) 3.97 atm

    partial pressure of H₂ = 3.6 atm

    partial pressure of NH₃ = (0.2482 mol / 4.4657 mol) 3.97 atm

    partial pressure of NH₃ = (0.0556 mol) 3.97 atm

    partial pressure of NH₃ = 0.22 atm

You can also learn about partial pressure from the following question:

https://brainly.com/question/13199169

#SPJ4

Answer:

Definition of Genetic Material

Well, your genetic material known as deoxyribonucleic acid (DNA) is the reason. DNA is the hereditary material found in the nucleus of eukaryotic cells (animal and plant) and the cytoplasm of prokaryotic cells (bacteria) that determines the composition of the organism.

When choosing a substance for use in a cooling system, we want a substance that can absorb a large amount of heat without undergoing a significant temperature change. This is where the specific heat capacity of a substance comes into play.

The specific heat capacity of a substance is defined as the amount of heat required to raise the temperature of one unit of mass of the substance by one degree Celsius (or Kelvin). A substance with a high specific heat capacity requires more heat to raise its temperature by a certain amount than a substance with a low specific heat capacity. Therefore, a substance with a high specific heat capacity would be best for use in a cooling system.

Out of the options given, a liquid with a high specific heat would be the best choice for use in a cooling system. Liquids have a higher specific heat than gases, which makes them better at absorbing and storing heat. Additionally, liquids have a higher thermal conductivity than solids, which means they can more efficiently transfer heat from one location to another.

Moreover, among the liquids, water is a commonly used coolant due to its high specific heat capacity, which means it can absorb a large amount of heat without undergoing a significant temperature change. Additionally, water has a high boiling point, which makes it effective at absorbing heat from high-temperature sources without boiling and evaporating.

In summary, a liquid with a high specific heat, such as water, would be the best choice for use in a cooling system due to its ability to absorb and store heat efficiently.

For more such question on heat capacity visit:

https://brainly.com/question/16559442

#SPJ11

To determine the specific volume of a sample of dry air, we can use the ideal gas law. The ideal gas law equation is:

PV = nRT

Where:

P = Pressure (in Pascal)

V = Volume (in cubic meters)

n = Number of moles of the gas

R = Ideal gas constant (8.314 J/(mol·K))

T = Temperature (in Kelvin)

To convert the given pressure and temperature to the SI units (Pascal and Kelvin), we have:

Pressure = 50 kPa = 50,000 Pa

Temperature = 263 K

Now, we can rearrange the ideal gas law equation to solve for volume (V):

V = (nRT) / P

Since we're dealing with a specific volume, we need to determine the volume per unit mass. Therefore, we'll consider one kilogram (kg) of dry air.

To calculate the number of moles (n) of air in one kilogram, we need to know the molar mass of dry air. The molar mass of dry air can be approximated as 28.97 g/mol.

1 kg of air = 1000 g

Number of moles (n) = (mass of air) / (molar mass of air)

n = (1000 g) / (28.97 g/mol)

Now we can substitute the values into the equation:

V = [(1000 g) / (28.97 g/mol)] * (8.314 J/(mol·K)) * (263 K) / (50,000 Pa)

V/n ≈ 0.0434 m³/mol is the specific volume of the dry air sample.

Learn more about ideal gas law: brainly.com/question/27870704

#SPJ11

Answer:

Final pressure of the air inside is 0.83atm

Explanation:

Boyle's law is the gas law that relates the change in volume when pressure change at constant temperature and vice versa. The equation is:

P₁V₁ = P₂V₂

Where P is pressure and V is volume of 1, initial state and 2, final state of the gas

Replacing:

P₁ = 0.5atm

V₁ = 2.5L

P₂ = ?

V₂ = 1.5L

P₁V₁ = P₂V₂

0.5atm*2.5L = P₂*1.5L

0.83atm = P₂

Answer

Mass of (H30)2CrO = 38 g

Explanation

Given:

Mass of Sn(CrO4)2 = 43.4 g

Mass of (H3O)2HPO4 = 35.2 g

Required: The mass of (H30)2CrO4 that will be produced

Solution:

Calculate the possible mass that could be produced by each reactant, so as to determine the limiting reagent. Use stoichiometry.

For Sn(CrO4)2:

For (H3O)2HPO4

Sn(CrO4)2 will produce less (H30)2CrO4 therefore, Sn(CrO4)2 is the limiting reagent.

Answer:

the elements are listed in order of increasing atomic number. The atomic number is the number of protons in the nucleus of an atom.In a periodic table arranged in order of increasing atomic number, elements having similar chemical properties naturally line up in the same column.

The elements on the periodic table are arranged on the basis of highlighting similarities between elements. Thus, the correct option for this question is A.

The elements on the periodic table are basically arranged on the basis of increasing their atomic number. These atomic number is represented by the number of protons in the nucleus of an element.

According to the question, the elements possessing identical chemical properties are arranged in the same group. For example, group 17 is known as the halogen group. Among this group, the elements bear one electron short to fulfill their octet.

The whole periodic table comprises of 18 groups and 7 periods.

Therefore, the elements on the periodic table are arranged on the basis of highlighting similarities between elements. Thus, the correct option for this question is A.

To learn more about the Periodic table, refer to the link:

https://brainly.com/question/15987580

#SPJ2

The issues with the way the procedure was performed include not performing the reaction on ice, adding the acids all at once, not performing the reaction at reflux, and using sulfuric acid when only nitric acid should be used. These issues can affect the outcome of the reaction and may lead to undesired results.

Based on the given options, there are multiple issues with the way the procedure was performed:

1. The reaction was not done on ice: Performing the reaction on ice is important in some cases to control the reaction rate and prevent unwanted side reactions. Not doing so can lead to unexpected results or low yields.

2. The acids were added all at once: Adding the acids all at once can cause a rapid and uncontrolled reaction. It is often preferable to add them slowly or in a specific order to ensure proper mixing and control of the reaction conditions.

3. The reaction was not performed at reflux: Refluxing is a technique used to maintain a constant temperature during a reaction. It involves heating the reaction mixture and condensing and returning any evaporated solvents or reagents back into the reaction vessel. Not performing the reaction at reflux can lead to variations in temperature and affect the reaction outcome.

4. Only nitric acid should be used, no sulfuric acid: The procedure specifies that only nitric acid should be used, while sulfuric acid should not be used. This could be because sulfuric acid can have adverse effects on the reaction or result in unwanted side reactions.

You can learn more about sulfuric acid at: brainly.com/question/1107054

#SPJ11

Answer:

122 gm

Explanation:

54 days is 2 half lives :    ( 27 * 2 = 54)

  1/2   * 1/2 = 1/4 will be left

      1/4 * 488 = 122 gm

A) F2 and C2H5OH (Heterogeneous mixture)B) H2O and CH3OH (Homogeneous mixture)C) LiCl and C10H20 (Heterogeneous mixture)D) CH4 and C2H5OH (Heterogeneous mixture).

The pair of substances that are most likely to form a homogeneous solution is B. H2O and CH3OH. A homogeneous mixture is one in which the components are evenly distributed throughout the mixture. These types of solutions have uniform properties and the same composition throughout.A heterogeneous mixture is one in which the components are not evenly distributed. This means that the mixture has distinct regions or phases that are visibly different from one another. The following are the most likely pairs of substances to form a homogeneous solution:A) F2 and C2H5OH (Heterogeneous mixture)B) H2O and CH3OH (Homogeneous mixture)C) LiCl and C10H20 (Heterogeneous mixture)D) CH4 and C2H5OH (Heterogeneous mixture).

learn more about Heterogeneous

https://brainly.com/question/24898889

#SPJ11

ANSWER

The number of moles of Pb(SO4)2 is 1.5 moles

EXPLANATION

Given that;

The mass of Li2SO4 is 330g

Follow the steps below to find the moles of Pb(SO4)2

Step 1; Write the balanced equation of the reaction

Step 2; Find the number of moles of Li2SO4 using the below formula

Recall, that the molar mass of Li2SO4 is 109.94 g/mol

The number of moles of Li2SO4 is 3.00 moles

Step 3; Find the number of moles of Pb(SO4)2 using a stoichiometry ratio

In the above equation of the reaction, 1 mole Pb(SO4)2 reacts to give 2 moles LiSO4

Let the number of moles of Pb(SO4) be x

Therefore, the number of moles of Pb(SO4)2 is 1.5 moles

The order of increasing disorder is solid, liquid, and gas. This arrangement is based on the increasing freedom of movement and randomness of the particles as we move from solid to liquid to gas.

Solid: Solids have a highly ordered arrangement of particles, with strong intermolecular forces and fixed positions of atoms or molecules.

Liquid: Liquids have less order compared to solids, as particles have more freedom of movement while still maintaining close proximity to one another.

Gas: Gases have the highest degree of disorder among the three phases. Gas particles are widely spaced, move freely, and lack a definite shape or volume.

To know more about Solid, here

brainly.com/question/20461295

#SPJ4

Answer:

Ionic Compound

Explanation:

1) NaBr

2) CaCl2

3) MgS

4) AlO

5) Li3P

6) Cs3N

7) KI

8) BaF2

9) RbNO2

10) BaO

11) Potassium oxide

12) Magnesium iodide

13) Aluminum chloride

14) Calcium bromide

15) Sodium nitride

16) Lithium fluoride

17) Barium phosphide

18) Dicesium sulfide

19) Strontium fluoride

20) Sodium chloride

Hope this helps!!

Answer:

When baking soda is mixed with vinegar, something new is formed. The mixture quickly foams up with carbon dioxide gas. If enough vinegar is used, all of the baking soda can be made to react and disappear into the vinegar solution.

Explanation:

Hello friend! Hopefully this helps you as much as needed!

An English scientist called John Newlands put forward his Law of Octaves in 1864. He arranged all the elements known at the time into a table in order of relative atomic mass. He then put the similar elements into vertical columns, known as groups.

Answer:

We can use Gay-Lussac's Law to solve this problem, which states that the pressure of a gas is directly proportional to its temperature, provided the volume and the number of moles of the gas are constant.

Using this law, we can write:

P1/T1 = P2/T2

where P1 is the initial pressure, T1 is the initial temperature, P2 is the final pressure, and T2 is the final temperature.

Substituting the given values, we get:

P1 = 106 kPa

T1 = 47°C + 273.15 = 320.15 K

T2 = 77°C + 273.15 = 350.15 K

So, P2/T2 = P1/T1

P2 = P1 × (T2 / T1)

P2 = 106 kPa × (350.15 K / 320.15 K) = 115.44 kPa

Therefore, the new pressure of the hydrogen gas will be 115.44 kPa when it is heated to 77°C at constant volume.

please vote brainliest, have a great day :)

The correct answer is option A. The mass of the sample decreased, so physical changes occurred as the metal first melted and then boiled out of the crucible. The decrease in mass is a result of the metal melting and then vaporizing as it is heated.

Physical changes refer to changes in the physical properties of a substance without altering its chemical composition. Examples of physical changes include melting, freezing, condensation, vaporization, sublimation, and physical state changes. Physical changes occur when a substance changes from one state of matter to another without a chemical reaction taking place.

This is an example of a physical change, as the material is changed from a solid to a liquid and then to a gas, but its chemical composition remains the same.

To learn more about physical changes
https://brainly.com/question/11370755
#SPJ4

During an isobaric expansion, a fixed amount of ideal gas experiences an increase in volume and a decrease in density, while the pressure remains constant.

Isobaric expansion occurs when the external pressure on an ideal gas is held constant, allowing the gas to expand or contract. As the volume of the gas increases, the density decreases, as there is more space for the gas molecules to move around. This process is associated with a change in the internal energy of the gas, as work is done either by or on the gas. In an ideal gas, this change in energy depends on the heat capacity and the temperature change experienced by the gas during expansion. **Isobaric expansion** and **ideal gas** are important concepts in understanding thermodynamics and gas behavior under constant pressure conditions.

Know more about Isobaric expansion here:

https://brainly.com/question/30623713

#SPJ11

Bomb Calorimeter: The Bomb calorimeter is a device used to determine the heat of combustion for organic material or fuels. Heat is given out by the burning process, and the quantity of heat produced can be used to evaluate the fuel's heating value (calorific value). The fuel is burnt in a high-pressure oxygen environment within the calorimeter, and the temperature rise produced by the combustion is measured. The heat transfer capacity of the calorimeter, the heat capacity of the calorimeter, and the heat of combustion are all factors that must be considered in the bomb calorimeter's operation.

Method of Calibration:

The calorimeter must be calibrated by adding a small amount of benzoic acid (usually 1.5g) of known calorific value to the combustion cell. The bomb is filled with 30 atmospheres of pure oxygen and the benzoic acid is ignited, causing it to combust within the bomb and producing heat. The heat produced is absorbed by the calorimeter and is recorded, and the results of the benzoic acid's combustion are compared to the value given in literature to calculate a correction value. This correction factor can then be used in the analysis of unknown fuels to compensate for the calorimeter's thermal losses.

The Orsat Gas Analyser:

The Orsat gas analyser is an instrument used to measure the concentration of gases in a flue gas sample. This instrument is used to determine the amount of oxygen, carbon monoxide, and carbon dioxide produced by a combustion reaction. A sample of the flue gas is extracted and passed through a series of chemical agents that absorb the gases of interest, the remaining gas is then analysed to determine the gas concentration. The Orsat analyser is used to ensure that combustion is complete and that toxic gases such as carbon monoxide are not being produced. It can also be used to optimize fuel to air ratios to maximise combustion efficiency.

#SPJ11

Before performing the titration of the unknown acid, if the partner accidentally dilutes the sample by adding water, it would affect the following aspects of the titration curve:

1. The volume of base necessary to reach the equivalence point will remain unaffected.

2. It would not have any effect on the pH at the half-equivalence point.

3. It would decrease the pH at the equivalence point.

Titration is a process in which a solution of known concentration (the titrant) is added to a solution of unknown concentration (the analyte) until the reaction between them is complete. When this reaction is complete, it is known as the equivalence point, and it is indicated by the titration curve.

The accidental dilution of the unknown acid by adding water to it before titration would affect only the pH at the equivalence point. Here's how:

Effect on volume of base used: The volume of base required to reach the equivalence point remain unaffected or unchanged as volume of base depends upon number of moles of acid. Here, dilution doesn't affects the number of moles, it is affecting the concentration of solution. That's why it doesn't matter that how much diluted a sample is, the thing matters is the number of moles of acid which are not changing.

Effect on pH at the half-equivalence point: It would not have any effect on the pH at the half-equivalence point. The pH at the half-equivalence point depends only on the dissociation constant (Ka) of the acid. It is also not affected by concentration of acid.

Effect on pH at the equivalence point: As the sample is diluted by adding water, the concentration of the acid decreases, and the amount of H+ ions released by it also decreases. Therefore, it would require fewer hydroxide ions (OH-) to neutralize the acid, which means that the pH of the equivalence point would decrease.

To learn more about titration curve, visit here:

https://brainly.com/question/29590776

#SPJ11

Answer:

prevent hydroxide formation

Explanation:

The purpose of plotting the reciprocal of reaction velocity versus the reciprocal of substrate concentration (1/V versus 1/[S]) on a Lineweaver-Burk plot is to linearize the relationship between the rate and the substrate concentration.

The Lineweaver-Burk plot is a graphical representation of the Michaelis-Menten equation, which describes the relationship between the rate of an enzyme-catalyzed reaction and the substrate concentration. The purpose of plotting the reciprocal of reaction velocity versus the reciprocal of substrate concentration (1/V versus 1/[S]) on a Lineweaver-Burk plot is to linearize the relationship between the rate and the substrate concentration. This linearization allows for easy determination of the kinetic parameters of the reaction, such as the maximum reaction rate (Vmax) and the Michaelis constant (Km), by measuring the slope and y-intercept of the line, respectively. The Lineweaver-Burk plot also provides a way to identify enzyme inhibition, as different types of inhibition can result in changes in the slope and y-intercept of the line. Therefore, the Lineweaver-Burk plot is a valuable tool for studying enzyme kinetics and understanding the mechanisms of enzyme-catalyzed reactions.

To know more about Lineweaver-Burk plot:

https://brainly.com/question/30459981

#SPJ4

The percent error in the measurement of the tap water density is approximately 1.02%, while the percent error in the measurement of the filtered water density is approximately -0.40%.

To calculate the percent error, we use the formula:

Percent Error = (|Measured Value - True Value| / True Value) x 100

For the measurement of the tap water density:

Percent Error = (|1.015 g/mL - 0.997 g/mL| / 0.997 g/mL) x 100

Percent Error ≈ (0.018 g/mL / 0.997 g/mL) x 100

Percent Error ≈ 1.81%

For the measurement of the filtered water density:

Percent Error = (|0.993 g/mL - 0.997 g/mL| / 0.997 g/mL) x 100

Percent Error ≈ (0.004 g/mL / 0.997 g/mL) x 100

Percent Error ≈ 0.40%

The positive percent error in the tap water measurement indicates that the measured value is higher than the true value. This could be due to experimental errors such as inaccuracies in the measuring equipment, variations in temperature affecting the density, or impurities present in the tap water.

The negative percent error in the filtered water measurement indicates that the measured value is lower than the true value. This could be caused by the loss of dissolved substances during the filtration process or inaccuracies in the measuring equipment.

The tap water density measurement has a percent error of approximately 1.02%, indicating a slight overestimation. The filtered water density measurement has a percent error of approximately -0.40%, indicating a slight underestimation. Possible causes for these errors include experimental inaccuracies, variations in temperature, impurities in the tap water, and losses of dissolved substances during filtration.

To know more about density visit:

https://brainly.com/question/28348989

#SPJ11

Answer:

Hydrogen and Oxygen

Explanation:

The chemical equation for water is H20, meaning Hydrogen and 2 oxygen!

Generates a large volume of solid radioactive waste is the fission.

The nuclear fission is the process in which the atoms nucleus splits into two or more smaller nuclei. The nuclear fission produces the large amount of the energy. It does not occurs naturally. The nuclei generates through the fission power plant is unstable. This is the disadvantage of the nuclear fission. The process of the fission produces the gamma photons and releases the large amount of energy as compared to the nuclear fusion. The fission is the process of splitting the nucleus of atom into the two daughter nuclei.

Thus, the nuclear fission generates the huge amount of solid radioactive waste.

To learn more about fission here

https://brainly.com/question/9816140

#SPJ4

Answer:

1. In 0.0250 moles of potassium chromate there are 0.05 moles of potassium , 0.025 moles of chromium and 0.1 moles of oxygen are present.

2. In 4.50 moles of ammonium carbonate there are 9 moles of ammonium ions and 4.5 moles of carbonate ions are present.

Explanation:

1.

Moles of potassium chromate = 0.0250 mol

Formula of potassium chromate = \(K_2CrO_4\)

1 mole of potassium chromate has 2 moles of potassium , 1 mole of chromium and 4 moles of oxygen.

Then in 0.0250 moles of potassium chromate:

Moles of potassium will be:

\(2\times 0.0250 mol= 0.05 mol\)

Moles of chromium will be:

\(1\times 0.0250 mol= 0.025 mol\)

Moles of oxygen will be:

\(4\times 0.0250 mol= 0.1 mol\)

2.

Moles of ammonium carbonate = 4.50 mol

Formula of ammonium carbonate =\((NH_4)_2CO_3\)

1 mole of ammonium carbonate has 2 moles of ammonium ion and 1  mole of carbonate ion.

Then in 4.50 moles of ammonium carbonate:

Moles of ammonium ion will be:

\(2\times 4.50 mol= 9mol\)

Moles of carbonate ions will be:

\(1\times 4.50 mol= 4.5 mol\)

Answer:

I think this is the answer M=F/AM=4N/8m/s/sM=0.5kg.

Explanation:

I hope this helped!!

Answer:

Political Map. A political map shows the state and national boundaries of a place. ...

Explanation: