Exhaled air for 90 minutes would be 40 breaths per minute (at 1 litre per breath) x 90 minutes =3600 litres x 0.16= 576 litres of oxygen, In other words, first work out the amount of air breathed out in litres/minute and then multipy by the number of minutes to get the total litres of air breathed out and then multiply that figure by 0.16 (16 % oxygen per volume of air) to get total litres of oxygen breathed out.
O' is the molecule that is associated with oxygen and hydrogen
They are all examples of chemical formulas
It would be a triple bond because they overlap orbitals to share three pairs of electrons
Answer:
Explanation:
The expression for density is:
M is molar mass of Calcium = 40.078 g/mol
For cubic closest packed structure , Z= 4
is the density
Radius = 197 pm = 
Also, for fcc, 
Thus,
