Diana measured 233 mL for the volume of the object. The actual volume of the object was 241 mL. What is the percent error of Diana’s results?

The molar mass of the gas samples must be known to find the greatest concentration of molecules.

What is a molar mass?

A substance's molar mass is its mass in grams per mole of the chemical. A mole measures a substance's quantity of atoms, molecules, or ions. A mole is 6.022  1023 molecules of any given chemical.

Molar Mass calculation formula

M=m/n

M= molar mass

m=mass of substances (in grams).

n= number of moles of a substance.

How is molar mass determined, and why is it important?

One mole of material is weighed to determine its molar mass. Add the masses of all the components in a molecule to determine the molecular mass of the molecule by multiplying the subscript (number of atoms) by the atomic mass of each element in the molecule.

Using the molar mass formula,

M= 12/4 = 3,

It can be determined that 3 moles (or 3*avogadro number of molecules) are present.

Hence we can conclude that option (a) is correct.

Learn more about molar mass from the given link.

https://brainly.com/question/837939

#SPJ13

The valence electron on O = 6, As = 5, N = 5, Al = 3, K = 1

Valence electrons are the electrons in the outermost shell, or energy level, of an atom. For example, oxygen has six valence electrons, two in the 2s subshell and four in the 2p subshell. We can write the configuration of oxygen's valence electrons as 2s²2p⁴.

Similarly we can see that the outermost orbit in As is 4[tex]s^{2}[/tex]4[tex]p^{3}[/tex] hence it has 5 valence electron and the charge on Arsenic ion is +5.

The outermost orbit in N is 2[tex]s^{2}[/tex]2[tex]p^{3}[/tex] hence it has 5 valence electron and the charge on Nitrogen ion is 3-

The outermost orbit in Al is 3[tex]s^{2}[/tex]3[tex]p^{1}[/tex] hence it has 3 valence electron and the charge on Aluminum ion is 3+

The outermost orbit of K is 4[tex]s^{1}[/tex] hence it has 1 valence electron and the charge on Potassium ion is 1+

To know more about valence electrons

https://brainly.com/question/18690146

#SPJ1

According to the given statement C₄H₆O is the empirical formula of this substance.

Empirical formulae are beneficial since figuring out the molecular formula can be immensely aided by knowing the relative amounts of each constituent in a molecule. It's crucial to have an n-value in order to figure out the precise figure of each atom within the molecule.

The smallest full numerical percentage of atoms present in a molecule serves as the actual formulation of a substance in chemistry. Hydrogen superoxide (SO) and disulfur -2 empirical formulae are two straightforward examples of this notion (S2O2).

To know more about empirical formula visit:

https://brainly.com/question/14044066

#SPJ4

The addition products formed after the reaction are 4-bromo-2-hexene and 2-bromo-3-hexene.

The simplest type of electrophilic reaction to visualize is the addition of as haloacid such as Hbr to an isolated alkene.

The reaction starts between terminal carbon of the double bonds and H⁺. After attaching H⁺ to the carbon, one double bond disappears leaving nearby CH respectively charged. This intermediate is a resonance hybrid of two possible structures. Reaction of bromide at one of the carbons give the 1.2-addition product and at the other carbon gives 1,4-addition product.

learn more about electrophilic reaction: https://brainly.com/question/14803468

#SPJ4

A 355-ml can of soda pop contains 41 g of sucrose the molarity of the solution with respect to sucrose is 0.337 M

Given that 41g of sucrose

Number of moles = amount in g/ molar mass

Number of moles= 41 g / 342.2965 g/mol

Number of moles= 0.12 moles Sucrose

Volume = 355 ml or 0.355 L

Thus,

Molarity = 0.12 moles / 0.355 L

Molarity= 0.337 M

The term "molarity of the solution" refers to how many moles of solute there are in a liter of solution. M served as its symbol. The ratio of moles of solutes per liter of solution is known as the molarity of any solution. The following formula captures it.

Molarity (M) = moles of solute/liter of solution

Learn more about molarity here:

https://brainly.com/question/2817451

#SPJ4

Two lactate dehydrogenase isoenzymes interacting

what is affinity chromatography?

Affinity chromatography is a technique for extracting a biomolecule from a mixture that relies on a very particular macromolecular binding relationship between the biomolecule and another component. Depending on the biomolecule of interest, the specific type of binding contact may be between an antigen and an antibody, an enzyme and a substrate, a receptor and a ligand, or a protein and a nucleic acid. Binding interactions are routinely used to isolate different biomolecules. When compared to other chromatographic techniques, affinity chromatography is advantageous due to its high selectivity and resolution of separation.

In order to study the effects of pH and temperature on lactate dehydrogenase binding, immobilized NAD+ matrices were used to study the interactions of two isoenzymes of lactate dehydrogenase from pig heart muscle (H4) and rabbit skeletal muscle (M4). Investigated was how substrate, product, and sulphite affected the binding of heart muscle lactate dehydrogenase to immobilised NAD+. It was determined how the two lactate dehydrogenase isoenzymes interacted with immobilised pyridine and adenine nucleotides and their derivatives. Correlations between these factors' effects on lactate dehydrogenase's interaction with immobilised nucleotides and the known kinetic and molecular characteristics of the enzymes in free solution were found.

to learn more about affinity chromatography go through the following limk: https://brainly.com/question/15004427

#SPJ4

The percentage yield of the given reaction was supposed to be

the formula for the calculation of the percentage yield was =actual yield/theoretical yield X 100

What is percentage yield ?

The percent yield equation is as follows:

(actual yield/theoretical yield) x 100% Equals percent yield

Where: actual yield is the quantity of product received from a chemical reaction theoretical yield is the amount of output obtained from the stoichiometric or balanced equation, utilizing the limiting reactant to calculate product (moles or grams).

The quantity of products generated from a chemical reaction is referred to as the real yield. The theoretical yield is the quantity of product calculated from the stoichiometric or balanced equation utilising the limiting reactant to determine product.

=(0.988/1.61) X 100

=61.36%

the percentage yield of the reaction was found to be 61.36%

To learn more about percentage yield follow the given link: https://brainly.com/question/27997520

#SPJ1

The longitudinal diffusion a more serious problem in gas chromatography than in liquid chromatography because the diffusion coefficient is much more larger in gas than the liquid.

Chromatography is a type of laboratory technique which is performed for the separation of the mixture of different elements into its components. The mixture firstly dissolved in a fluid solvent which is known as the mobile phase, that carries it through a system at which the material called the stationary phase is fixed.

Not all molecules present in the same solute show same behavior. Different molecules show different behaviour. This is due to mainly three reason which arr given as below:

The molecules of solute moves in different direction in the stationary phase, it is due to porosity of the particle that form it.

Thus, we concluded that the longitudinal diffusion a more serious problem in gas chromatography than in liquid chromatography because the diffusion coefficient is much more larger in gas than the liquid.

learn more about chromatography:

https://brainly.com/question/11960023

#SPJ4

Answer:

C it generally decrease

Explanation:

Atomic radius of an element decrease from left to right of the periodic table

the amount of hydrogen required was about 0.582kg

why do we require STP?

STP: Standard temperature pressure

Consider a scenario in which a chemist in London is conducting an experiment in a lab. 12 °C and 1.015 bar are the average room temperatures and pressures in London. In Austin, where the average room temperature and pressure are 21 °C and 1.014 bar, respectively, the same experiment could yield very different results. This is due to the fact that temperature and pressure have an impact on a lot of scientific experiments, particularly chemistry experiments. We have therefore adopted some standard operating procedures to prevent these deviations and to ensure that laboratory experiments are conducted in a consistent manner worldwide. STP is one of those norms.

Vm=RT/P

=8.314x273.15/39000

=0.0582

so the balloon requires about 0.0582kg of hydrogen gas

To learn more about stp follow the given link: https://brainly.com/question/1626157

#SPJ4

781 g of hydrochloric acid in grams can be neutralized by 3.5 g of sodium bicarbonate.

To find out how much hydrochloric acid in grams can be neutralized by 3.5 g of sodium bicarbonate, we need to know the number of moles of HCl present, then multiply that by the molar mass of NaHCO3.

First, we calculate the number of moles of HCl present by solving for x:

x = Moles x 0.1 mol/L

= (Moles)(0.1 mol/L)(1000 mL)

= 100 mmol

Next, we multiply this number by the molar mass of NaHCO3:

=(84.007 g/mol)x(78.129 g/mol)

= 7.8129 x 100 mmol

= 781 g

To learn more about sodium bicarbonate visit: https://brainly.com/question/1904767

#SPJ4

A titration between sodium hydroxide (NaOH) and acetic acid (CH₃COOH) will have two equivalence points. The first equivalence point will be when the acid is completely neutralized, and the second will be when the base is completely neutralized.

The first equivalence point occurs when the moles of sodium hydroxide (NaOH) is equal to the moles of acetic acid(CH₃COOH). In the titration sodium hydroxide has neutralized all of the acetic acid. The second equivalence point occurs when the moles of sodium hydroxide is equal to the moles of water. The reason for two equivalence points is that acetic acid is a weak acid and water is a strong base.

Learn more about Equivalence point at : https://brainly.com/question/4518249

#SPJ4

The mass of 45.0 L of at 87.0° C and 950 mm Hg is therefore 72.181 g, we can deduce.

The macroscopic characteristics of ideal gases are related by the ideal gas law (PV = nRT). A gas is considered to be perfect if its particles (a) do not interact with one another and (b) occupy no space (have no volume).

Volume = 45.0 L

Temperature =87  = (87.0 + 273) K = 360 K

Pressure = 950 mm Hg (1 mm Hg = 0.00131579 atm) = 1.25 at

The following formula is used to calculate moles.

PV = nRT

where,

P = pressure

V = volume

n = no. of moles

R = gas constant = 0.0821 L atm/mol K

T = temperature

As shown, enter the values into the formula above.

PV = nRT
1.25 atm* 45.0 L  = n * 0.0821 L atm /mol K * 360 K

n = 1.25 atm* 45.0 L / 0.0821 L atm /mol K * 360 K

n = 56.25 / 29.556

n = 1.90 mol

The mass of a substance divided by its molar mass is expressed in moles. The following formula is used to compute the mass of (molar mass = 37.99 g/mol).

Moles  = mass / molar mass

1.90 mol =  mass/37.99 g/mol

Mass = 72.181 g

The mass of 45.0 L of at 87.0° C and 950 mm Hg is therefore 72.181 g, we can deduce.

To know more about Ideal gas law visit:

https://brainly.com/question/28257995

#SPJ13

29,322 milliliters of 0.155m hcl are needed to neutralize completely 45.0 ml of 0.101m ba(oh)2 solution Given that :

Hcl + Ba(oh)2 gives Bacl2 + 2h20

Molarity = mole of solute / volume of solution in liters

Molarity = 0.101 m

Volume = 45 ml

mole of solute (ba(0h)2) = Molarity * volume

                = 0.101 * 45 ml

                = 4.545

now we have to find the volume of hcl so,

again

molarity = mol solute/ volume of solution

volume of solution = mole solute / molarity

                                 = 4.545 / 0.155m

                                 = 29. 322 liters

                                 = 29,322 ml

To know more about molarity click here:

https://brainly.com/question/15406534

#SPJ4

Californium -249 is the isotope, when bombarded with oxygen-18, yields the artificial isotope seaborgium-263 plus 4 neutrons.

Californium is a radioactive chemical element with the symbol Cf and atomic number 98. The element was first synthesized by bombarding curium with alpha particles (helium-4 ions).

#SPJ4

P=183.65 atm is the pressure inside the tank for the given conditions.

How is the pressure calculated?

Given,

V=108 L

m=22700 gm

The formula is PV=nRT

moles= [tex]\frac{Mass}{Molar mass}[/tex]

∴moles of [tex]N_{2}[/tex] = [tex]\frac{22700}{28}[/tex]=810.78 moles.

R=0.082 [tex]\frac{L atm}{molK}[/tex]

T=27°C=300K

P=[tex]\frac{nRT}{V}[/tex]

[tex]P_{N_{2}[/tex]=[tex]\frac{810.71 X 0.0821 X 298}{108}[/tex]

P=183.65 atm

The ideal gas law (PV = nRT) connects the macroscopic characteristics of ideal gases. A gas is considered to be perfect if its particles (a) do not interact with one another and (b) occupy no space (have no volume).

PV = nRT

PV = nRT is the equation for an ideal gas. In this equation, P stands for the ideal gas's pressure, V for the ideal gas' volume, n for the total amount of the ideal gas expressed in moles, R for the universal gas constant, and T for temperature.

To know more about ideal gas equation, click here

https://brainly.com/question/27870704

#SPJ1

Alpha particles are the only radioactive particle that could have been used in the Rutherford gold foil experiment because they are produced naturally by radioactive nuclides that are alpha emitters and so a steady supply was easy to obtain.

As alpha particles do not travel very far from their radioactive source. They cannot pass through a piece of paper, clothes, or even the layer of dead cells which normally protects the skin.

Rutherford used alpha particles in his gold foil experiment in part because his previous research on radioactive decay discovered alpha particles. He wanted to test how alpha particles, which are positively charged, would react with various forms of matter.

Therefore Rutherford uses alpha particles in the Rutherford gold foil experiment.

To know more about the Rutherford gold foil experiment refer to the link given below:

https://brainly.com/question/1471810

#SPJ4

Answer:

4H₂O₂ + PbS = PbSO₄ + 4H₂O

Answer:

Explanation:

1) Fe2O3 + 3 H2 -----> 2 Fe + 3 H2O Number of moles of Iron (III)oxide = 450 g / 159.69 g/mol = 2.82 mole

2) 0.0155 moles of hydrogen gas

3) oxide needed to produce 125 of oxygen is7.8 moles

4) 216.5894

5) K3PO4 and KNO3

Answer:

Ice wedging

Explanation:

The rocks crack fill with water and then expand

Answer:

30 degrees Celsius, is 86 Fahrenheit.

273 kelvin, is 31.73 Fahrenheit.

0 degrees Celsius, is 32 Fahrenheit.

Then 32 degrees Fahrenheit.

The correct answer choice is A. 30 degrees Celsius.

Answer:

The answer to your question is,

A. true

Explanation:

I hope this helps

I am sorry if I am wrong

Answer:

31.2 moles of O2

Explanation:

You have to do stoichiometry to convert moles of NaClO4 to moles of O2.

You have 15.6 moles of NaClO4, you need these to cancel out so you use your coefficient from the equation. Since you are trying to find moles of O2 you put your coefficient of oxygen in the numerator. Multiply across the top & divide by the bottom to get 31.2 moles of O2.

[tex]\frac{15.6 mol NaClO4}{1} * \frac{4 mol O2}{2 mol NaClO4}[/tex]

The partial pressure of nitrogen gas is 1.43 x 10^-3 M to be exact, but we can also consider it as 1 atm.

Partial pressure can be defined as- if a container filled with more than one gas, each gas exerts pressure. The pressure of anyone gas within the container is called its partial pressure.

   As we know, pressure is the force per unit area. Partial pressure can be the pressure half-filled the area.

        Ideal gas behavior allows gas mixtures to be specified simply. In particular, the ideal gas law holds for each component of the mixture separately. Each component exerts its own pressure referred to as its partial pressure.

     Partial pressure is the measure of the thermodynamic activity of gas molecules. The gasses diffuse and react based on their partial pressures and not concentrations in a gaseous mixture.

Complete question: -

The solubility of N2 gas in blood is 6.10 x 10^-4M when the partial pressure of N2 gas is 1.00 atm and the temperature is 37-degree C. If a scuba diver breathes compressed air with a total air pressure of 3.00 atm, what is the solubility of N2 in her blood?

Learn more about partial pressure and related numerical from,

https://brainly.com/question/16107946

#SPJ4

The percent yield would be 40% if 2.50g of the organic fuel was reacted with 2.50g of oxygen and 1.00g of water was produced.

How is the percent yield of an organic molecule determined?

To learn more about percent yield, follow the link https://brainly.com/question/12704041

#SPJ4

The concentration of H₃O⁺ present in a solution of HCL is 7.76247 × 10⁻⁴.

Since we know,

pH<7, therefore there are only H₃O+ particles in the solution.

[H₃O⁺ ] = [tex]10^{-pH}[/tex] = [tex]10^{3.110}[/tex] = 7.76247× 10⁻⁴

Pure water will have fewer hydroxide and hydronium ions. They can combine to form water. There will be a dynamic equilibrium between the concentration of molecules of water and ions. The definition of pH states that negative logarithms of hydronium ion concentration. The self-ionization will take place and increase the H⁺ concentration and side by side reduce the OH⁻ concentration.

To learn more about concentration and pH and solutions,

https://brainly.com/question/4154626

#SPJ4

Yes, the substance becomes the part of filtrate. No, the molecule does not become part of the filtrate.

The most common example is making tea. While preparing tea, a filter or a sieve is used to separate tea leaves from the water. Through the sieve pores, only water will pass. The liquid which has obtained after filtration is called the filtrate; in this case, water is the filtrate.

The substances that are normally found in the filtrate  are plasma components (such as water, nutrients, dissolved gases, electrolytes, and metabolic wastes) excluding plasma proteins and blood cells.

Proteins are large molecules that cannot pass the wall of capillaries during  filtration, hence, this molecule is not normally part of the  filtrate.

Know more about filtrate visit the link

https://brainly.com/question/23945157

#SPJ4