1. To increase the solubility of a gas at constant temperature from 0.85g/mL at 1.0atm to 5.1g/mL, the pressure would have to be increased to . *

Answer : The pressure would have to be increased to 6.0 atm.

Explanation :

According top the Henry's Law, the solubility of a gas in a liquid is directly proportional to the pressure of the gas.

or,

where,

= initial solubility of gas = 0.85 g/mL

= final solubility of gas = 5.1 g/mL

= initial pressure of gas = 1.0 atm

= final pressure of gas = ?

Now put all the given values in the above formula, we get the final pressure of the gas.

Therefore, the pressure would have to be increased to 6.0 atm.

i do not get it   at all

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72