What are the conjugate base and conjugate acid for HSO4−? What is the term used to describe species that can behave as either an acid or a base, depending on the chemical environment?

Answers

Answer 1

Answer:

The conjugate acid $H^+$ and base $SO4^2-$ and the term would be Amphoteric.

Conjugate acid-

What is Amphoteric?

Amphoteric is described as the term employed to denote a substance that possesses the characteristics of both an acid, as well as, a base.

Given equilibrium:

$HSO4^-(aq)$ → $H^+(aq) + SO4^2-(aq)$

Therefore, the dissolution of $HSO4^-$ in water leads to the display acid that is conjugate $H^+$ and the conugate base $SO4^2-$ .

In case, the properties of both are reflected, it shows amphoteric nature.

Learn more about "Acid" here:

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Answer 2

Answer:

Conjugate acid- H^+

Conjugate base- SO4^2-

Terminology- Amphoteric

Explanation:

Consider the equilibrum shown below;

HSO4^-(aq)<-------> H^+(aq) + SO4^2-(aq)

Hence, When HSO4^- is dissolved in aqueous solution, it's conjugate acid is H^+ and it's conjugate base is SO4^2- as shown in the equation above.

If a substance behaves both as an acid and as a base, then the substance is Amphoteric in nature.

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An X-ray photon with a wavelength of 0.954 nm strikes a surface. The emitted electron has a kinetic energy of 959 eV.Part A:

What is the binding energy of the electron in kJ/mol? [Note that KE = = mv2 and 1 electron volt (eV) = 1.602 x 10-19 J.]

Answers

Answer:

An X-ray photon of wave length 0.989 nm strikes a surface. The emitted electron has a kinetic energy of 969 eV. What is the binding energy of the electron in kJ/mol? [KE=

mv2;1 electron volt (eV)=1.602×10−19J][KE=

;1 electron volt (eV)=1.602

Final answer:

The photoelectric effect equation is used to find the binding energy of an electron when an X-ray photon with a specific wavelength strikes a surface, taking into account the kinetic energy of the ejected electron and the energy of the photon.

Explanation:

To calculate the binding energy of an electron when an X-ray photon with a given wavelength strikes a surface, you use the photoelectric effect equation which connects the energy of the photon (E = hc/λ) with the kinetic energy (KE) of the ejected electron and the binding energy (BE) that keeps the electron attached to the atom.

The equation is: KE + BE = hc/λ, where h is Planck's constant (6.626 x 10-34 J s), c is the speed of light (3.00 x 108 m/s), and λ is the wavelength of the photon.

The given kinetic energy of the electron is 959 eV, which can be converted to joules (1 eV = 1.602 x 10-19 J). The energy of the photon can be calculated using the wavelength. Binding energy is then found by subtracting the electron's kinetic energy from the energy of the photon.

To find the binding energy per mole, you can use Avogadro's number (6.022 x 1023 mol-1) to calculate the total binding energy in a mole of such electrons and then convert it to kilojoules.

Learn more about Photoelectric Effect here:

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Use the equation editor or "Insert Chemistry - WIRIS editor" to write the balanced molecular chemical equation for the reaction of aqueous 0.13 M lead (II) nitrate, with 0.19 M potassium carbonate. You may need to consult Appendix E to determine the states of each reactant and product. Assume any insoluble products are completely insoluble.

Answers

Answer:

Balanced equation:

$Pb(NO_(3))_(2)(aq)+K_(2)CO_(3)(aq)\rightarrow PbCO_(3)(s)+2KNO_(3)(aq)$

Explanation:

The chemical reaction between Lead(II) Nitrate and potassium carbonate is as follows.

$Lead(II)Nitrate+Potassium\,carbonate \rightarrow Lead(III)\,\,carbonate+Potassium\,nitrate$

$Pb(NO_(3))_(2)(aq)+K_(2)CO_(3)(aq)\rightarrow PbCO_(3)(s)+2KNO_(3)(aq)$

Ionic equation:

$Pb^(2+)(aq)+2NO_(3)^(-)(aq)+2K^(+)(aq)+CO_(3)^(2-)(aq)\Leftrightarrow PbCO_(3)(s)+K^(+)(aq)+2NO_(3)^(-)$

Cancel the same ions on the both sides of the reaction.

The net ionic equation is as follows.

$Pb^(2+)(aq)+CO_(3)^(2-)(aq)\Leftrightarrow PbCO_(3)(s)$

Give an example of an element and an example of a compound.

Answers

Answer:

an element is a atom like titanium and a compound is like a water, glucose, alcohol and salt

Explanation:

the titanium is a element and water, glucose, alcohol, and salt those are a compound

One cubic meter of an ideal gas at 600 K and 1000 KPa expand to five times its initial volume as follows:(a) By a mechanically reversible, isothermal process [T 2 = 600K; P 2 = 200kPa; W= -1609 kJ]

(b) By a mechanically reversible, adiabatic process [T 2 =208.96K; P 2 = 67.65 kPa; W= -994.4 kJ] For each case calculate the final temperature, pressure and the work done by the gas. C p =21 Jmol- 1K-1.

Answers

Answer:

lol just grabbing your points

Explanation:lol just grabbing your points

lol just grabbing your points

22. What is the molar mass of oxygen (O2)?A- 15.9994 g/mol
B- 1.204 x 1024 g/mol
C- 6.02 x 1023 g/mol
D- 31.9988 g/mol

Answers

Answer:

D- 31.9988 g/mol

Explanation:

The molar mass of a substance is the mass in grams of one mole of the substance. For a compound, the molar mass is the gram - formula mass or gram - molecular weight. It is determined by the addition of its component atomic masses;

To find molar mass of O₂;

Atomic mass of O = 15.9994g/mol

Molar mass of O₂ = 2(15.9994) = 31.9988g/mol

Under what set of conditions does HCl(g) deviate the most from ideal behavior?a) high temperature and low pressure.b) low temperature and high pressure.c) high temperature and high pressure.d) low temperature and low pressure. e) standard temperatore and pressure.

Answers

Answer:

b) low temperature and high pressure

Explanation:

Deviation of gases from their ideal behavior could be as a result of two things which include a very small volume for the gases and the collisions not being elastic enough.

Small volume will decrease the frequency of elastic collisions a gas will experience as a result of the tiny space.

Low temperature will decrease the amount of elastic collisions and energy of the gas and high pressure will decrease the volume which is why there will be a deviation in the ideal behavior of Hcl(g)

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