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3 years ago

Review the noble gases in the periodic table. As molar mass increases, the number of electrons increases, resulting in

Chemistry

2 answers:

docker41 [41]3 years ago

5 0

<span>greater dispersion forces is in fact correct</span>

Hatshy [7]3 years ago

3 0

Answer:

greater dispersion forces.

Explanation:

Dispersion forces are also known as London dispersion forces depends on the molar mass of the gas. The higher the molar mass of the molecule the greater is the dispersion forces. London dispersion forces exist between all atoms of the molecule.

Dispersion forces are weak intermolecular forces. They occur when instantaneous dipole moments are created by the electron cloud of an atom.

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To what temperature must a sample of nitrogen at 27°C and 0.625 atm be taken so that it’s pressure becomes 1.125 atm at constant

Karo-lina-s [1.5K]

Answer:

The sample of nitrogen must be taken to 267 $^{0}\textrm{C}$ .

Explanation:

Let's assume nitrogen gas behaves ideally.

Here amount of nitrogen gas in both states remain constant.

So, in accordance with combined gas law for a given amount of an ideal gas in two different states: $\frac{P_{1}V_{1}}{T_{1}}=\frac{P_{2}V_{2}}{T_{2}}$

where $P_{1}$ and $P_{2}$ are initial and final pressure respectively. $V_{1}$ and $V_{2}$ are initial and final volume respectively. $T_{1}$ and $T_{2}$ are initial and final temperature (in kelvin scale) respectively.

Here $V_{1}=V_{2}$ , $P_{1}=0.625atm$ , $T_{1}=(273+27)K=300K$ and $P_{2}=1.125atm$

So $T_{2}=\frac{P_{2}T_{1}}{P_{1}}=\frac{(1.125atm)\times (300K)}{(0.625atm)}=540K$

540 K = (540-273) $^{0}\textrm{C}$ = 267 $^{0}\textrm{C}$

So the sample of nitrogen must be taken to 267 $^{0}\textrm{C}$ .

8 0

3 years ago

Consider this reaction mechanism:

marusya05 [52]

C. rate = k[C4H9Br]

The slow step is always the rate-determining step. In the slow step, C4H9Br is the only reactant and has a coefficient of 1, so it is first order in the rate law.

7 0

3 years ago

Are eye drops a base or acid???

gregori [183]

base

bye hope you have a good day

3 0

4 years ago

How many significant digits are in 12,003,000 A) 8 B) 5 C) 6 D) 3

Ksju [112]

Answer:5

Explann: