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3 years ago

The Lewis electron-dot diagrams of the HClO3 molecule and the HClO2molecule are shown above at the left and right, respectively.

Chemistry

1 answer:

jeyben [28]3 years ago

5 0

Answer:

Option (B) is correct

Explanation:

Atom is the smallest existing particle of a chemical element.

$HClO_3$ has three electronegative oxygen atoms and $HClO_2$ has two electronegative oxygen atoms

Therefore,

$HClO_3$ (aq) is the stronger acid because the additional electronegative oxygen atom on the chlorine atom stabilizes the conjugate base.

Option (B) is correct.

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What is the attraction between molecules within a substance called? adhesion capillary action cohesion polarity.

cestrela7 [59]

Answer:

cohesion

Explanation:

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2 years ago

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What will happen if there is an insufficient supply of oxygen during the combustion of a hydrocarbon?

Kamila [148]

As long as there is some oxygen, the reaction will occur. If there is an insufficient amount of oxygen, then the oxygen will be the limiting reacting and there will be excess of the other reactants.

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3 years ago

Alveoli are tiny sacs of air in the lungs. Their average diameter is 4.50 × 10−5 m. Calculate the uncertainty in the velocity of

Arisa [49]

<u>Answer:</u> The uncertainty in the velocity of oxygen molecule is $4.424\times 10^{-5}m/s$

<u>Explanation:</u>

The diameter of the molecule will be equal to the uncertainty in position.

The equation representing Heisenberg's uncertainty principle follows:

$\Delta x.\Delta p=\frac{h}{2\pi}$

where,

$\Delta x$ = uncertainty in position = d = $4.50\times 10^{-5}m$

$\Delta p$ = uncertainty in momentum = $m\Delta v$

m = mass of oxygen molecule = $5.30\times 10^{-26}kg$

h = Planck's constant = $6.627\times 10^{-34}kgm^2/s^2$

Putting values in above equation, we get:

$4.50\times 10^{-5}m\times 5.30\times 10^{-26}kg\times \Delta v=\frac{6.627\times 10^{-34}kgm^2/s}{2\times 3.14}\\\\\Delta v=\frac{6.627\times 10^{-34}kgm^2/s^2}{2\times 3.14\times 4.50\times 10^{-5}m\times 5.30\times 10^{-26}kg}=4.424\times 10^{-5}m/s$

Hence, the uncertainty in the velocity of oxygen molecule is $4.424\times 10^{-5}m/s$

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3 years ago

The standard Gibbs free energy of formation of ________ is zero. (

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3 years ago

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poizon [28]

HNO3 and H2SO4 are Arrhenius acids which will increase the concentration of H+ when dissolved in water.

KOH and Ca(OH)2 are Arrhenius bases that increase the concentration of OH- when dissociated in water.

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3 years ago