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3 years ago

I forgot this section but I got the rest plz help me

Chemistry

1 answer:

Lapatulllka [165]3 years ago

8 0

S 1 suborbitals 2 electrons
p 3 suborbitals 6 electrons
d 5 suborbitals 10 electrons
f 7 suborbitals 14 electrons

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The molar heat capacity for carbon monoxide at constant volume is CV,m = 20.17 J/(K·mol). A 3.00-L fixed-volume flask contains C

kompoz [17]

ΔS = 0.250 J·K^(-1)

Step 1. Calculate the moles of CO

From the Ideal Gas Law,

n = (pV)/(RT) = (8.00 kPa × 3.00 L)/(8.314 kPa·L·K^(-1)·mol^(-1) × 298.15 K)

= 0.009 682 mol

ΔS = nC_Vln(T_2/T1)

= 0.0096 82 mol × 20.17 J·K^(-1)mol^(-1) ln(1073.15 K/298.15 K)

= 0.1953 J·K^(-1) × ln3.599 = 0.250 J·K^(-1)

5 0

4 years ago

On the basis of molecular structure and bond polarity, which of the following compounds is most likely to have the greatest solu

Drupady [299]

Answer:

$\boxed{\text{c) NH$_{3}$; hydrogen bonding}}$

Explanation:

For each of these molecules, you must determine their VSEPR structure and then identify the strongest intermolecular forces.

Remember that water is a highly polar molecule.

a) CH₄

Electron geometry: tetrahedral

Molecular geometry: tetrahedral

Bond polarity: C-H bond nonpolar

Molecular polarity: nonpolar

Strongest IMF: London dispersion forces

Solubility in water: low

A nonpolar molecule is insoluble in a polar solvent.

b) CCl₄

Electron geometry: tetrahedral

Molecular geometry: tetrahedral

Bond polarity: C-Cl bond nonpolar

Molecular polarity: nonpolar (symmetrical molecule. All bond dipoles cancel)

Strongest IMF: London dispersion forces

Solubility in water: low

A nonpolar molecule is insoluble in a polar solvent.

d) PH₃

Electron geometry: tetrahedral

Molecular geometry: trigonal pyramidal

Bond polarity: P-H bonds are polar

Molecular polarity: polar (all P-H bond dipoles point towards P)

Strongest IMF: dipole-dipole

Solubility in water: soluble

A polar molecule is soluble in a polar solvent.

c) NH₃

Electron geometry: tetrahedral

Molecular geometry: trigonal pyramidal

Bond polarity: N-H bonds are highly polar

Molecular polarity: highly polar (all N-H bond dipoles point towards N)

Strongest IMF: hydrogen bonding

Solubility in water: highly soluble

NH₃ is so polar that it can form hydrogen bonds with water.

$\boxed{\textbf{The compound with the greatest solubility in water is NH$_{3}$}}$

8 0

3 years ago

A set of aqueous solutions are prepared containing different acids at the same concentration: acetic acid, chloric acid and hydr

navik [9.2K]

Answer:

The solutions of hydrobromic acid and of chloric acid are the most electrically conductive.

Explanation:

The electrical conductivity of a solution is determined by the concentration of ions in the solution. The acids listed react with water to form ions. In the case of hydrobromic acid, for example, the reaction is as follows:

HBr + H2O >> H3O(+) + Br(-)

Hydrobromic acid and chloric acid are strong acids, meaning the reaction is considered to proceed at 100%. Acetic acid, however, is a weak acid and the reaction with water does not go to completion, so there are less ionic species in the solution of acetic acid, which makes it less electrically conductive.

3 0

3 years ago

Which of the following processes does not occur in both plant and animal cells? A. photosynthesis B. cellular respiration C. Met

Fofino [41]

the only process out of the four that does not happen in both animals implants would be photosynthesis. photosynthesis is when the cell takes the energy from the Sun's UV rays and turns into a form of energy that it can use

8 0

3 years ago

Read 2 more answers

The question is based on the cell above

kkurt [141]

Mitochondria, I believe

3 0

4 years ago