what is the concentration of sulfuric acid (h2so4) if 40.00 ml of it reacts with 36.90 ml of a 0.26 m naoh solution?

From the calculation, the binding energy of the oxygen atom is 1.98 * 10^11 J

The term binding energy has to do with the energy that must be supplied to the nucleus of an atom for the nucleus of the atoms to be bonded together.

We must note that;

E = mc^2

E =  2.20 × 10 -28 kg * ( 3 * 10^8m/s)^2 = 1.98 * 10^11 J

Learn more about binding energy:https://brainly.com/question/10095561

#SPJ4

Answer:

1.98 × 10 -11 J

Explanation:

edg

Answer:

The heterogeneous mixture that has very small dispersed particles and stays mixed for a long time is colloid. Because colloid has particles that are small enough to suspended but are as large that they can scatter light.

Answer:

1. heterogeneous

2. colloid

3. suspension

To learn more about Magnesium chloride reactions visit:

https://brainly.com/question/27891157

#SPJ4

The molar concentration of chloride ions in a 2.6 M solution of MgCl₂ can be calculated using the molar ratio of chloride ions to MgCl₂.

To find the molar concentration of chloride ions, we need to consider the molar ratio of chloride ions to MgCl₂ in the solution. MgCl₂ dissociates in water to form one Mg²⁺ ion and two Cl⁻ ions. This means that for every one mole of MgCl₂, we have two moles of chloride ions.

Given that the solution is 2.6 M, it means that there are 2.6 moles of MgCl₂ per liter of solution. Since the molar ratio of chloride ions to MgCl₂ is 2:1, we can multiply the molar concentration of MgCl₂ by the ratio to find the molar concentration of chloride ions.

Molar concentration of chloride ions = 2.6 M MgCl₂ × 2 = 5.2 M Cl⁻

Therefore, the molar concentration of chloride ions in the solution is 5.2 M.

It's important to note that the density of the solution is not directly used in this calculation, as the molar concentration is determined by the number of moles of solute (MgCl₂) in a given volume of solution, rather than its mass.

To know more about molar concentration refer here:

https://brainly.com/question/28270242#

#SPJ11

False. For all atoms of the same element, the 2s orbital is not larger than the 1s orbital.

The size or spatial extent of an atomic orbital is primarily determined by its principal quantum number (n). The larger the principal quantum number, the greater the average distance of the electron from the nucleus, resulting in larger orbitals. In this case, the 2s orbital has a larger principal quantum number (n = 2) compared to the 1s orbital (n = 1), which might lead to the misconception that the 2s orbital is larger.

However, in terms of size, the 1s orbital is actually smaller than the 2s orbital. This is because the 1s orbital is closer to the nucleus, experiencing a stronger attraction and resulting in a smaller spatial distribution compared to the 2s orbital. The 2s orbital, being in a higher energy level and having a larger average distance from the nucleus, occupies a larger volume of space.

In summary, the 2s orbital is larger than the 1s orbital in terms of spatial extent and volume.

Know more about 2s-orbital here:

https://brainly.com/question/30880632
#SPJ11

Answer:

The glucose concentration is measured in mM, the abbreviation for "milliMolar". The molar (M) concentration of a solution is a measure of how much solute (the component of a solution present in lesser amount, often a solid) there is in a given volume of solution. After swirling the flask to dissolve the solid, water is added carefully until the bottom of the meniscus coincides with the calibration mark on the neck of the flash.

8.0 molecules of NO would be produced.

From the balanced equation:

3Cu + 8HNO₃ → 3Cu(NO₃)₂ + 2NO + 4H₂O,

It is clear that 3.0 atoms of Cu react with 8.0 molecules of HNO₃ to produce 3.0 molecules of Cu(NO₃)₂, 2.0 molecules of NO, and 4.0 atoms of H₂O.

Note that: The no. of atoms and molecules is the same ratio to the no. of moles.

Using cross multiplication:

3.0 atoms of Cu produce → 2.0 molecules of NO, from the balanced equation.

12.0 atoms of Cu produce → ??? molecules of NO.

∴ The no. of molecules of NO produced = (2.0 molecules)(12.0 atoms)/(3.0 atoms) = 8.0 molecules.

An equation for a chemical reaction is said to be balanced if both the reactants and the products have the same number of atoms and total charge for each component of the reaction. In other words, both sides of the reaction have an equal balance of mass and charge.

The equation must be balanced such that each type of atom appears in equal amounts on both the left and right sides of the arrow. This is accomplished by altering the compounds' coefficients (numbers placed in front of compound formulas). In this example, the subscripts (tiny numbers to the right of some atoms, including iron and oxygen) are never altered. The chemical identification of the compound would change if the subscripts were changed.

The correct answer is:

2 Fe2O3 + 3 C → 4 Fe + 3 CO2

To view more about balanced chemical equation, refer to:

https://brainly.com/question/17384427

#SPJ4

The frequency of a photon with an energy of 4.91 x 10⁻¹⁷ J is approximately 7.41 x 10¹⁶ Hz.

The energy (E) of a photon is given by the equation E = hf, where h is Planck's constant (6.63 x 10⁻³⁴ J·s) and f is the frequency of the photon. To find the frequency, we rearrange the equation to f = E/h.

Substituting the given values, we have f = (4.91 x 10⁻¹⁷ J) / (6.63 x 10⁻³⁴ J·s) ≈ 7.41 x 10¹⁶ Hz.

Therefore, the frequency of the photon is approximately 7.41 x 10¹⁶ Hz (option b).

For the second question, we need to use the Rydberg formula to determine the final level of the electron. The formula is given by 1/λ = R(1/n₁² - 1/n₂²), where λ is the wavelength of the photon emitted, R is the Rydberg constant (2.179 x 10¹⁸ J), and n₁ and n₂ are the initial and final energy levels, respectively.

Rearranging the formula, we have 1/n₂² = 1/λR + 1/n₁². Substituting the given values, we have 1/n₂² = 1/(3745 nm)(2.179 x 10¹⁸ J) + 1/(n₁)².

Simplifying the equation, we find 1/n₂² = 0.0002679 + 1/n₁². Comparing the equation with the given answer choices, we find that the final level of the electron is 5 (option a).

Therefore, the final level of the electron is 5 (option a).

To know more about Rydberg constant, refer here:

https://brainly.com/question/13185515#

#SPJ4

Based on the equation of the reaction and the limiting reactant of the reaction, molarities of the ions are determined from the amount in moles of excess reactants and soluble products formed.

The limiting reactant is he reavtant that is used up in the reaction after which the reaction stops.

The limiting reactant is obtained from the mole ratio of the reactants in the equation of the reaction.

Equation of reaction is given as follows:

Molar mass of AgNO3 = 170 g/mol

Molar mass of Na3P = 100 g/mol

Molar mass of Ag3P = 355 g/mol

Molar mass of NaNO3 = 85 g/mol

Mass of AgNO3 reacting = 83.4 g

Moles of AgNO3 reacting = 83.4/170 = 0.49 moles

Mass of Na3P reacting = 62.9

Moles of Na3P reacting = 62.9/100 = 0.629 moles

Moles ratio of AgNO3 to Na3P = 3 : 1

Mole rational of AgNO3 and NaNO3 1 : 1

Based on the mole ratio;

At the end of the reaction, molarity of the ions are as follows:

Molarity of Na+ = {0.49 + (3 × 0.46)}/1.71

Molarity of P^{3+} = 0.465/1.71

Molarity of NO3^{-1} = 0.49/1.71

Therefore, molarities of the ions are determined from the amount in moles of excess reactants and soluble products formed.

Learn more about limiting reactant at: https://brainly.com/question/14225536

1/3 fraction of the original uranium-235 should be left after 3.5 billion years

The only naturally occurring isotope of this radioactive metal, uranium-235, is capable of supporting a nuclear fission reaction, making it special. A variation of an element called an isotope has a different number of neutrons in its nucleus. Approximately 93.5 percent of the uranium used in modern nuclear bombs is enriched.

On average, plutonium-239 makes up 93% or more of nuclear bombs, whereas plutonium-240 makes up less than 7% and other plutonium isotopes are present in extremely minute amounts. A nuclear bomb requires around 33 pounds (15 kilograms) of enriched uranium to function, according to the Union of Concerned Scientists.

To learn more about uranium please visit-
https://brainly.com/question/9099776
#SPJ4

According to the given statement The molarity of the iron(II) solution is 0.648 M.

The amount of the sample in a specific solution volume is defined as its molarity (M). The molarity of a solute per litre of a solution is known as molarity. The molar concentration is yet another name for molarity.

Iron(II) solution volume (V₁) = 25.0 mL/0.025 L

Dichromate solution (V₂) has a volume of 18.0 mL, or 0.018 L.

Dichromate solution molarity (M₂) = 0.150 M

Molarity of dichromate solution is :

M₂ = n₂/V₂

(n₂  = M₂* V₂ = 0.150  * 0.018 = 2.7 * 10⁻³ mol

Complete balanced equation is given below.

\(6 \mathrm{Fe}^{2+}(a q)+\mathrm{Cr}_2 \mathrm{O}_7^{2-}(a q)+14 \mathrm{H}^{+}(a q) \rightarrow 6 \mathrm{Fe}^{3+}(a q)+2 \mathrm{Cr}^{3+}(a q)+7 \mathrm{H}_2 \mathrm{O}\)

It is obvious from the equation that 1 mole of dichromate is needed to make 6 moles of iron(II) solution.

Therefore, we calculate the number of moles of iron(II) solution using the unitary technique.

1 mole of dichromate is equal to 6 moles of iron (II)

6n₂ moles of iron are equal to n₂ moles of dichromate (II)

=6 * 2.7 * 10⁻³ = 0.0162 mol Fe²⁺

So, 0.0162 moles of iron(II) is needed. Therefore,

Now, molarity of iron(II) solution is given as: n\(_1\) = 0.0162

Molarity = Moles ÷ Volume

M₁ = n\(_1\)/V₁

M₁ = 0.0162mol/0.025 L = 0.648 M

The molarity of the iron(II) solution is 0.648 M.

To know more about Molarity visit:

https://brainly.com/question/8732513

#SPJ4

The complete question is -

The titration of 25.0 mL of an iron(II) solution required 18.0 mL of a 0.150M solution of dichromate to reach the equivalence point. What is the molarity of the iron(II) solution?

Answer:

I would use conduction because it makes the marshmallow heathyer then radiation

Explanation:

mark me as brainlyest pls?

BTW I LOVE MARSHMALLOWS!

Answer:

C

Explanation:

Answer:

Explanation:

Suppose a solution contains calcium,

C

a

2

+

, ions.

According to solubility rules, which other ion should be added to form a precipitate?

CO3-(carbonate ion) negatively charged can be added to make insoluble(not dissolving=forming a precipitate) CaCO3(Calcium Carbonate)= common word "Limestone"

Answer:

it adds up to 25000 grams

Answer:

Krypton

Explanation:

mark this brainy if correct

Baking is a chemical change when you bake a cake the ingredients go through a chemical change. .

Chemical Change is defined as the process in which the atoms of one or more substances are rearranged or combined to form a new substance. When a substance undergoes chemical change the chemical properties of the substance changes and it is transformed into a different substance with different chemical composition. Examples are burning of any substance, rusting of iron.

Therefore a chemical change occurs when the molecules that compose two or more substances are rearranged to form a new substance.

Learn more about chemical change here: brainly.com/question/1222323

#SPJ1

Answer:

The ocean is made up of salt water, which is a combination of fresh water, plus minerals collectively called "salts." These salts aren't just sodium and chloride (the elements that make up our table salt), but other minerals such as calcium, magnesium, and potassium, among others.

Explanation:The answer is since particles can be found in ocean water It is a compound, since it results from the combination of elements It is a solution

The units for the rate constant of a reaction with the rate law, Rate = k[A][B], are given by M⁻¹s⁻¹.

In the rate law equation, Rate = k[A][B], the rate constant (k) represents the proportionality constant that relates the concentrations of reactants ([A] and [B]) to the rate of the reaction. The rate constant depends on the specific reaction and is determined experimentally.

To determine the units of the rate constant, we need to analyze the units of the rate and the concentrations of the reactants. In the given rate law equation, the rate is expressed in terms of concentration per unit time (M/s or mol/(L·s)).

The concentration of reactant A is represented by [A], which has units of M (molarity) or mol/L. Similarly, the concentration of reactant B is represented by [B] and also has units of M or mol/L.

By substituting the units into the rate law equation, we can deduce the units of the rate constant. The rate is given in M/s, and the concentrations [A] and [B] are in M. Therefore, the units of the rate constant k must cancel out the units of concentration, resulting in M⁻¹, and also account for the unit of time, which is s⁻¹.

Therefore, the correct answer for the units of the rate constant of a reaction with the given rate law is M⁻¹s⁻¹, which corresponds to option C.

To learn more about rate - brainly.com/question/30787205

#SPJ11

Answer:

1. 0.5333333m (Calculator Soup Work Calculator)

2.

9. 29.1666666667% efficient

10. 44.5% efficient

Explanation:

will do other answers later

Option D) ATP, NADPH, and O2 is the primary response to the following query. The thylakoid membrane of the chloroplasts hosts the light-dependent processes, also referred to as the light reactions.

This process uses solar energy to produce ATP and NADPH, which are necessary for the subsequent dark reactions, also known as light-independent reactions, that provide food for the plant.

In the light-dependent processes, chlorophyll absorbs light in the chloroplasts' thylakoid membrane. This excitation of electrons in the pigment molecules results in the production of ATP and NADPH. In this process, the water molecules were divided by energetic electrons. During the light-dependent process, water splitting results in the release of oxygen as a byproduct. One way to describe the full process of photosynthesis is as follows:

= carbon dioxide + water + sunlight → glucose + oxygen6CO2 + 6H2O + light energy → C6H12O6 + 6O2

In the first two stages of photosynthesis, referred to as light reactions, energy from light is absorbed by chlorophyll molecules and converted into the energy molecules ATP and NADPH, which are then utilised in the next dark reaction to build organic compounds.

In photosystem II, pigment molecules absorb light energy to start the light processes. The electrons are excited by this energy and are subsequently transported by a number of electron carriers. Water splits during this process, producing oxygen, protons, and electrons.

Through using the protons (H+) to form a proton gradient, ATP is produced through chemiosmosis. When excited electrons are transmitted down a sequence of electron carriers in the second photosystem, they combine with photosystem pigment molecules to form NADPH.

Energy-dense substances like ATP and NADPH are employed in the Calvin cycle (also known as the dark reaction) to produce organic substances like glucose.

Option D: The byproducts of photosynthesis' light-dependent processes are ATP, NADPH, and O2. In this process, chlorophyll absorbs light in the chloroplasts' thylakoid membrane, which excites electrons in the pigment molecules to produce ATP and NADPH.

To know more about the Calvin cycle, visit:

brainly.com/question/33360156

#SPJ11

Answer:

The answer is

Explanation:

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

From the question

volume of solution = 40.0 mL

density = 0.84 g/mL

The mass of the solution is

mass = 40 × 0.84

We have the final answer as

Hope this helps you

The calculated values are: ∆Hº = -197 kJ/mol ; ∆Sº = 97 J/K·mol

∆Gº = -22082 J/mol ; K = 1.83 × 10^14.

To calculate ∆Hº, ∆Sº, and ∆Gº for the given reaction at 25ºC and 1 atm, we can use the following equations:

∆Gº = ∆Hº - T∆Sº

∆Gº = - RT ln K

where R is the gas constant (8.314 J/K·mol), T is the temperature in Kelvin (25ºC = 298.15 K), and K is the equilibrium constant for the reaction.

The ∆Hº for the reaction can be calculated by summing the standard enthalpies of formation of the products and subtracting the sum of the standard enthalpies of formation of the reactants:

∆Hº = [2 ∆Hfº(\(SO_3\))] - [2 ∆Hfº(\(SO_2\)) + ∆Hfº(\(O_2\))]

∆Hº = [2 (-396 kJ/mol)] - [2 (-297 kJ/mol) + 0 kJ/mol]

∆Hº = -197 kJ/mol

The ∆Sº for the reaction can be calculated by summing the standard entropies of the products and subtracting the sum of the standard entropies of the reactants:

∆Sº = [2 Sº(\(SO_3\))] - [2 Sº(\(SO_2\)) + Sº(\(O_2\))]

∆Sº = [2 (257 J/K·mol)] - [2 (248 J/K·mol) + 205 J/K·mol]

∆Sº = 97 J/K·mol

The equilibrium constant K can be calculated using the standard Gibbs free energy change ∆Gº:

∆Gº = - RT ln K

K = e^(-∆Gº/RT)

Substituting the values, we get:

K = e^(-(-197000 J/mol)/(8.314 J/K·mol × 298.15 K))

K = 1.89 × 10^14

Finally, we can use the ∆Hº, ∆Sº, and ∆Gº values to calculate the equilibrium constant K using the equation:

∆Gº = - RT ln K

∆Gº = ∆Hº - T∆Sº

∆Gº = (-197000 J/mol) - (298.15 K) × (97 J/K·mol)

∆Gº = -22082 J/mol

K = e^(-∆Gº/RT)

K = e^(-(-22082 J/mol)/(8.314 J/K·mol × 298.15 K))

K = 1.83 × 10^14

For more question on values click on

https://brainly.com/question/27964828

#SPJ11

The standard enthalpy change (∆Hº) for the reaction 2 SO2(g) + O2(g) → 2 SO3(g) at 25ºC and 1 atm can be calculated using Hess's Law and the enthalpies of formation of the reactants and products.

∆Hº = (-2∆Hfº(SO3(g))) - (-2∆Hfº(SO2(g))) - ∆Hfº(O2(g)) = -2(-396 kJ/mol) - 2(-297 kJ/mol) - 0 kJ/mol = -198 kJ/mol.

The standard entropy change (∆Sº) for the reaction can be calculated using the standard entropies of the reactants and products. ∆Sº = (2Sº(SO3(g))) - (2Sº(SO2(g))) - Sº(O2(g)) = 2(257 J/K·mol) - 2(248 J/K·mol) - 205 J/K·mol = 96 J/K·mol.

The standard free energy change (∆Gº) for the reaction can be calculated using the equation ∆Gº = ∆Hº - T∆Sº, where T is the temperature in Kelvin. At 25ºC, T = 298 K. ∆Gº = -198 kJ/mol - (298 K)(96 J/K·mol/1000 J/kJ) = -224 kJ/mol.

Thus, the reaction is exothermic, has a positive entropy change, and is spontaneous at 25ºC.

Learn more about enthalpy here :

https://brainly.com/question/29145818

#SPJ11

Ionization of beryllium (Be) produces a +2 charge. Be now has a net positive charge of +2 after losing two electrons and gaining two fewer negative charges in its ionized state.

learn more about beryllium here

https://brainly.com/question/1820862

#SPJ1

Answer:

option A is the ans i think so

If an unknown solution has pH of 9 the solution is classified as a base as it has larger concentration of hydroxyl ions.

According to the Arrhenius concept, base is defined as a substance which yields hydroxyl ions on dissociation.These ions react with the hydrogen ions of acids to produce salt in an acid-base reaction.

Bases have a pH higher than seven as they yield hydroxyl ions on dissociation.They are soapy in touch and have a bitter taste.According to the Lowry-Bronsted concept, base is defined as a substance which accepts protons .Base react violently with acids to produce salts .Aqueous solutions of bases can be used to conduct electricity .They can also be used as indicators in acid-base titrations.

They are used in the manufacture of soaps,paper, bleaching powder.Calcium hydroxide ,a base is used to clean sulfur dioxide gas while magnesium hydroxide can be used as an antacid to cure acidity.

Learn more about base,here:

https://brainly.com/question/12445440

#SPJ2

Answer:

HCl is a polar covalent compound, because of electronegativity difference between Cl(3.5) and hydrogen (2). Hence in this way, the bond between HCl breaks and they formed ions in the polar solvent like water .

The true statement about proportions in this context is that; "Proportions have cross products that are equal."

The term stoichiometry is umbrella term that encompasses all the calculatrions that are aimed at calculating the amount of substance using mass - volume relationships. Usually, stoichiometry makes use of proportions.

The true statement about proportions in this context is that; "Proportions have cross products that are equal."

Learn more about proportions: https://brainly.com/question/9743981