22 400 ml of oxygen gas contains 6.022 1023 oxygen molecules at 0°c and standard atmospheric pressure. a. how many oxygen molecules are in 0.100 ml of gas? b. how many oxygen molecules are in 1.00 l of gas? c. what is the average space in milliters occupied by one oxygen molecule?

Answer :

(a) The number of oxygen molecules present in 0.100 mL of gas is,

(b) The number of oxygen molecules present in 1.0 L of gas is,

(c) The volume of oxygen gas is,

Explanation :

(a) To calculate the number of oxygen molecules present in 0.100 mL of gas.

As, 22400 mL of oxygen gas contains number of oxygen molecules

So, 0.100 mL of oxygen gas contains number of oxygen molecules

(b) To calculate the number of oxygen molecules present in 1.00 L or 1000 mL of gas.

As, 22400 mL of oxygen gas contains number of oxygen molecules

So, 1000 mL of oxygen gas contains number of oxygen molecules

(c) To calculate the volume of oxygen gas for one molecule of oxygen.

As, number of oxygen molecules present in 22400 mL of oxygen gas

So, 1 oxygen molecules present in of oxygen gas

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