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jek_recluse [69]
3 years ago
14

The first ionization energy of mg is 735 kj/mol. calculate zeff.

Chemistry
1 answer:
Novay_Z [31]3 years ago
7 0
2.25 I believe

Hope this helped!
STSN
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The gasses in a hair spray can are at temperature 300k and a pressure of 30 atm, it
Sergeeva-Olga [200]

Answer:

900 K

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Recall the ideal gas law:

\displaystyle PV = nRT

Because only pressure and temperature is changing, we can rearrange the equation as follows:
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The right-hand side stays constant. Therefore:

\displaystyle \frac{P_1}{T_1} = \frac{P_2}{T_2}

The can explodes at a pressure of 90 atm. The current temperature and pressure is 300 K and 30 atm, respectively.

Substitute and solve for <em>T</em>₂:

\displaystyle \begin{aligned} \frac{(30\text{ atm})}{(300\text{ K})} & = \frac{(90\text{ atm})}{T_2} \\ \\ T_2 & = 900\text{ K}\end{aligned}

Hence, the temperature must be reach 900 K.

7 0
2 years ago
How do you prepare 1 liter of a 0.5 molar glucose solution?
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A sample of gas occupies 10.0 l at 100.0 torr and 27.0
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P2=T2P1/T1

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5 0
3 years ago
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