chemical-aritmatic

Question: The number of moles of oxygen in $1\;L$ of air containing 21% oxygen by volume, in standard conditions, is

1) 0.186 mol

2) 0.21 mol

3) 2.10 mol

4) 0.0093 mol

Solution:

Explanation: No Explanation

atomic-mass

Rate this question:

★ ★ ★ ★ ★

Average rating: (0 votes)