The solubility of nitrogen gas in water at 25 °c and a nitrogen pressure of 1.0 atm is 6.9 × 10-4 m. the solubility of nitrogen in water at a nitrogen pressure of 4.5 atm is m.

Solubility of nitrogen in water at a nitrogen pressure of 4.5 atm is

Explanation:

According to Henry's law for solubility of a gas dissolved in a solvent-

where and are solubility of the gas at a pressure of and respectively.

Here, , and

So,

or,

or,

So, solubility of nitrogen in water at a nitrogen pressure of 4.5 atm is

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you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6