what is the hypochlorite ion concentration in a 0.69 m solution of hocl? see the acid-base table for the ka value.

Answer:The bottom 3

Explanation:

Beacuse all of these have to do with this subject hope this helps.

In this case , Removing a small amount of BaO will increase the amount of bao2(s) in the vessel.

What do you mean by Barium oxide ?

Barium oxide , BaO.  Barium oxide is found to be white and is non-flammable. It is mostly used  in cathode ray tubes, catalysts, crown glass, and solvent-killing agents because of its cubic structure. Sir Humphry Davy was known as the discovered. Barium oxide has a total monoisotopic mass of 153.9 g/mol.

Uses of Barium oxide is used in the isomer separation process.

Hence, In this case , Removing a small amount of BaO will increase the amount of bao2(s) in the vessel.

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enthalpy of reaction AH° = +650 kJ  for the following thermochemical equation. 5H2S04(1) -> 5S03(8) 5H20(1)

Given ,503(g) + 420/1) + H2S04(0); . Reverse the reaction is also change the sign of OH. H₂ So3 (1) 503(g) + H2O(1), DH" = +130kJ.Multiplying this equation by s. 512 804 11) 550₂ (g) + SH₂0 (1), DH" = 5X (+130kJ)= +650kJ. AH° = +650 kJ.This quantity, H, is referred to as the enthalpy of reaction or the reaction's heat. The quantification of heat published or soaked up by a chemical reaction is known as calorimetry. The quantity of heat transferred by the reaction causes the the solution's temperature to change. A scientist can use Delta H to ascertain whether a reaction emits heat (or is exothermic) or absorbs heat (or is endothermic) (or is endothermic). Delta H = m x s x Delta T, at which m represents the mass of a reagents, s is the heat capacity of the product, as well as Delta T is the temperature change caused by the reaction.

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Answer:

Titanium fluoride

Explanation:

Answer:

The elements of Group VIIA (new Group 17 – fluorine, chlorine, bromine, iodine, and astatine) are called the halogens (tan column). The term “halogen” means “salt-former” because these elements will readily react with alkali metal and alkaline earth metals to form halide salts

Kc=28.7  is the equilibrium constant

[CO]=26.7g(28.01g/mol)(5.25L)=0.182M

[H2]=2.33g(2.016g/mol)(5.25L)=0.220M

[CH3OH]=8.65g(32.04g/mol)(5.25L)=0.0514M

Kc= x/(0.182−x)(0.220−2x)2

   = 0.0514/(0.182−0.0514)(0.220−2(0.0514))2

   = 28.7

a number that expresses the relationship between the amounts of products and reactants present at equilibrium in a reversible chemical reaction at a given temperature.

So, this shows the equilibirum constant is 28.7

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Answer:

c: low melting point

Explanation:

melting point is dependent on intermolecular forces. in covalent compounds, electrons are shared more equally. this means there is less separation of positive and negative charges within the molecules.

The complete nuclear fusion of each reaction: 2 1 H (hydrogen) + 2 1 H (hydrogen) → 4 2 He (helium) + 1 0 n (neutron) + D (deuterium) + E (energy)

238 92 U (uranium)

Nuclear fusion is a process by which atomic nuclei combine to form a heavier nucleus, releasing a large amount of energy in the process. In nuclear fusion reactions, lighter elements combine to form heavier ones, resulting in the release of energy. One example of a nuclear fusion reaction is the fusion of two hydrogen atoms, which results in the formation of helium, a neutron, and the release of energy in the form of deuterium and energy (D and E). Another example is the fusion of uranium, which can result in the formation of thorium, helium, and the release of energy in the form of fissile and energy (F and G). These reactions play a crucial role in powering the stars, including our sun, and hold great promise as a clean and virtually limitless energy source for the future.

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Answer:

D: 3

E: 2

F: 234

G: 90

Explanation:

You have to get what is on the right to add up to the left in that row.

Also right on edge 2023

The elements would most likely attain a noble-gas configuration of He, Ne, Ar, or Kr. The appropriate elements for their respective bins are Se would gain two electrons to attain a noble-gas configuration of Kr. Sr would lose two electrons to attain a noble-gas configuration of Kr.

Noble gases are the most stable elements because their outermost electron shells are fully occupied, which is what the other elements aim to achieve. Noble gas configuration is the electron configuration of noble gases, which are the most stable elements. The electron configuration of the nearest noble gas is achieved by adding or removing electrons from the atom. Each of the seven periods in the periodic table corresponds to a specific block of the periodic table. The 1s block is called the first period, the 2s2p block is the second period, and so on.

The elements Li, Al, O, P, K, Se, and Sr belong to different blocks of the periodic table, so they each have different electron configurations.

The electron configurations of Li, Al, O, P, K, Se, and Sr are 1s2 2s1, [Ne] 3s2 3p1, [He] 2s2 2p4, [Ne] 3s2 3p3, [Ar] 4s1, [Ar] 3d10 4s2 4p4, and [Kr] 5s2, respectively.

To achieve a noble-gas configuration, these elements would lose or gain electrons as follows: Li would lose one electron to attain a noble-gas configuration of He. Al would lose three electrons to attain a noble-gas configuration of Ne. O would gain two electrons to attain a noble-gas configuration of Ne.

P would gain three electrons to attain a noble-gas configuration of Ar. K would lose one electron to attain a noble-gas configuration of Kr.

Se would gain two electrons to attain a noble-gas configuration of Kr. Sr would lose two electrons to attain a noble-gas configuration of Kr.

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The claim is accurate. Below its pi, an amino acid will have a positive average charge. Below its pi, an amino acid will often have a positive average charge.

Body protein as well as other vital nitrogen-containing substances including creatine, steroid hormones, and also some neurotransmitter cannot be produced without amino acids. Although limitations are expressed in terms of protein, amino acids are a biological necessity.

A protein is made up of one or more polypeptide chains—chains of amino acids—whose sequence is encoded by a gene. While the body can synthesis some amino acids, essential amino acids cannot and must be received from diet.

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transfer 100% Dimethyl Sulfoxide": This enables Phineas Welles to probably revive greater colonists within the submit-recreation. but the human take a look at topics on this facility will die. "switch 2Phineas6.371% Dimethyl Sulfoxide": with the aid of leaving maximum of the chemical, the take a look at subjects will live                    



The Outer Worlds tells a really compelling story filled with corruption and death. one of the maximum vital quests within the tale is called The town And the celebrities. In it, you, below the orders of Phineas Welles, try to get a keep of a few Dimethyl Sulfoxide, that's a unprecedented chemical that Welles can use to assist revive the desire Colonists.

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The compression factor based on the information given is 0.083.

The way to calculate the compression factor goes this:

V(ideal) = RT/P

= (0.0821 × 250)/15

= 1.368

V(real) will be:

= V(ideal)/12

= 1.368/12 = 0.114

The compression factor will be:

= 1.368/(12 × 1.368)

= 0.083

Therefore, the compression factor is 0.083.

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Answer:

It's a very good subject!

answer; the last two is me and u :

Analyze radioactive decay with the half-life calculator.

The half-life sign is t12. For instance, if 100 mg of a medication with a 60-minute half-life is consumed, the following is projected to occur: 50 mg remain 60 minutes after injection. After 120 minutes of ingestion, 25mg is still active.

Ordinarily, seconds are the unit. But it largely depends on the circumstance. If uranium-238 is brought up, you will be discussing a half life measured in the billions of years. In contrast, the half-life of a muon will be measured in seconds or microseconds.

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Answer :                                                                                                                      

   The element X which ha a smaller atomic radius than strontium , a larger ionization energy  than phosphorous , and a smaller elctronegativity than chlorine is Nitrogen

Explanation:

 Here are some properties of Nitrogen-

Hence , the X element is NITROGEN.

It is important to note that the balanced equation for a chemical reaction must include all of the reactants and products, as well as the coefficients that indicate the relative amounts of each substance involved in the reaction.

This ensures that the reaction is fully balanced, meaning that the number of atoms of each element on both sides of the equation is the same.  

The reaction \(VCI_2 + CI_2 - > VCI_5\) is a chemical reaction between vinyl chloride (VCI) and chlorine (\(CI_2\)) to form vinyl chloride monomer (\(VCI_5\)). The reactants in this reaction are vinyl chloride and chlorine, while the product is vinyl chloride monomer.

The balanced equation for this reaction is:

\(VCI_2 + CI_2 - > VCI_5\)

In this equation, the coefficients in front of the reactants and products indicate the relative amounts of each substance that are involved in the reaction. The coefficients are determined by the stoichiometric coefficients, which are the ratios of the coefficients of the reactants and products in the balanced equation.

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I'm choosing a value of 298 K, a volume of 1 liter, and 2 and 4 particles to compare the effects of volume and intermolecular forces in this specific scenario, which will be larger than what the ideal gas law predicts.

How do intermolecular forces differ depending on volume?

The intermolecular distances between gaseous molecules are generally large at low pressures, but as the gas pressure rises, they get less and less (Figure 5.10. 3). As a result, its volume taken up by the molecules rises much over the container's volume.

Why does the ideal gas rule break out at high pressures for gases?

It is assumed that the molecules in an ideal gas have no gravitational pull on one another and take up no space. However, real molecules do have limiting volumes and are attracted to one another. Therefore, under high pressures, a gas behaves differently than it should because of the attraction between its molecules.

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To find ∆H for the reaction Fe₂O₃(s) + 2Al(s) → Al₂O₃(s) + 2Fe(s) using Hess's Law, we need to use the given reactions (a) and (b) and manipulate them to obtain the desired overall reaction.

Given:

a. 2Al(s) + 3/2O₂(g) → Al₂O₃(s); ∆H = -1675.7 kJ

b. 2Fe(s) + 3/2O₂(g) → Fe₂O₃(s); ∆H = -824.2 kJ

To match the stoichiometry of the desired reaction, we need to multiply reaction (a) by 2 and reaction (b) by 2:

2a. 4Al(s) + 3O₂(g) → 2Al₂O₃(s); ∆H = 2*(-1675.7 kJ) = -3351.4 kJ

2b. 4Fe(s) + 3O₂(g) → 2Fe₂O₃(s); ∆H = 2*(-824.2 kJ) = -1648.4 kJ

Now, we can add these manipulated reactions to obtain the desired overall reaction:

4Al(s) + 3O₂(g) + 4Fe(s) + 3O₂(g) → 2Al₂O₃(s) + 2Fe₂O₃(s)

To find the ∆H for the overall reaction, we add the ∆H values of the manipulated reactions:

∆H = (-3351.4 kJ) + (-1648.4 kJ) = -4999.8 kJ

Therefore, the ∆H for the reaction Fe₂O₃(s) + 2Al(s) → Al₂O₃(s) + 2Fe(s) using Hess's Law is -4999.8 kJ.

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Answer:

It is B. Budding

Explanation:

Hope this helped have an amazing day!

Answer:

About 7.109g

Explanation:

25000mL is the same as 25 liters.

\(PV=nRT \\\\0.5 (25)=n (0.0821) (300) \\\\n\approx 0.508\)

Multiplying this by the molar mass of nitrogen, you get about 7.109 grams of nitrogen. Hope this helps!

Answer:

d) Hypothesis

Explanation:

I think d) Hypothesis is the correct answer for the question.

Hope it helps :)

If you started with 1.5 moles of H2 at STP, you would have approximately 33.6 liters of volume of hydrogen (H₂) gas.

To determine the number of liters of H2 you have, we need to consider the conditions under which the gas is being held (i.e. temperature and pressure), as well as the molar volume of H2 at those conditions.

At standard temperature and pressure (STP), which is 0°C (273.15 K) and 1 atm (101.325 kPa), the molar volume of any ideal gas is approximately 22.4 L/mol.

Therefore, at STP, 1.5 moles of H₂ would occupy approximately:

V = n x Vm = 1.5 mol x 22.4 L/mol = 33.6 L

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The complete question is below:

HOW MANY LITERS OF H2 DO YOU HAVE IF YOU START WITH 1.5 MOLES OF H2? (assume STP condition)

There are 1.31 x 1022 bromide ions in 2.00 g of \(MgBr_2\).

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Answer:

432cm³

Explanation:

Given parameters:

Length  = 12cm

Height  = 6cm

Width  = 6cm

Unknown:

V = ?

Solution:

We have been given that;

                    V  = L x W x H

So;

                 V  = 12cm  x 6cm x 6cm  = 432cm³

The molecular formula of of tobacco that composed of C, H, and N, and A 0.005250 g sample of nicotine was combusted, producing 0.014242 g of CO₂ and 0.004083 grams of H₂O = C₁₀H₁₄N₂.

To determine the empirical formula, we have to divide each member of moles by the smallest one.

Number of C atoms = 3.237 x 10⁻⁴ / 0.646 x 10⁻⁴

= 5

Number of H atoms = 4.536 x 10⁻⁴ / 0.646 x 10⁻⁴

= 7

Number of N atoms = 0.646 x 10⁻⁴ / 0.646 x 10⁻⁴

= 1

Hence, the empirical formula = C₅H₇N

Now, determine the empirical formula mass:

Mass of C₅H₇N = (5 x C) + (7 x H) + (N)

= (5 x 12 + (7 x 1.008) + (14.007)

= 81.118 g/mol

Divide the molar mass of he compound by the empirical formula mass.

(160 ± 5 gr/mol) / 81.118 g/mol

≈ 2

Multiply the empirical formula by 2.

So, the molecular formula = C₁₀H₁₄N₂

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Answer:

Tara does not get the same results when she conducts the experiment

Explanation:

The most likely reason Tara suggested to Victor to perform the experiment again before publication would be because she did not get the same results when she conducted the experiment.

A good scientific research or experiment should have an element of reproducibility. In order words, the claim made in published scientific research should be reproducible by any other scientist that decides to replicate the research. Tara repeated Victor's experiment in order to check its reproducibility and when she could not reproduce the results, she had to tell Victor to conduct the experiment again before deciding to publish it.

The change in enthalpy for a reaction can be calculated by subtracting the sum of the enthalpies of formation of all the changes from the sum of the enthalpies of formation of all the changes.

Enthalpy is a property or state function that resembles energy; it has the same dimensions as energy and is therefore measured in joules or ergs. The value of enthalpy is solely dependent on the temperature, pressure, and composition of the system, not on its history.

Enthalpy is the unit used to describe the total amount of heat in a thermodynamic system with constant pressure. It's depicted as. Where E is the internal energy, P is the pressure, and E is the energy, H is defined as E + P + V.

Enthalpy is a system's thermodynamic attribute. It is made up of the system's pressure, volume, and internal energy put together. It displays both the ability to produce heat and the ability to perform the non-mechanical activity.

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