Atmospheric scientists often use mixing ratios to express the concentrations of trace compounds in air. mixing ratios are often expressed as ppmv (parts per million volume): ppmv of x 5 vol of x at stp 3 106 total vol of air at stp on a certain november day, the concentration of carbon monoxide in the air in downtown denver, colorado, reached 3.0 3 102 ppmv. the atmospheric pressure at that time was 628 torr and the temperature was 08c.
a. what was the partial pressure of co?
b. what was the concentration of co in molecules per cubic meter?
c. what was the concentration of co in molecules per cubic centimeter?

a)

b)

c)

Explanation:

a) The partial pressure of CO₂ is given by:

Since the molar fraction of the gas is directly proportional to the volume of the gas, the molar fraction is given by:

Hence,

b) Using the Ideal Gas Law, we can find the number of moles of CO₂:

where:

The concentration of CO in molecules per cubic meter is:

c) The concentration of CO in molecules per cubic centimeter is:

mechanics (greek   is that area of science concerned with the behaviour of physical bodies when subjected to forces or displacements, and the subsequent effects of the bodies on their environment. the scientific discipline has its origins in ancient greece with the writings of aristotle and archimedes[1][2][3] (see history of classical mechanics and timeline of classical mechanics). during the early modern period, scientists such as galileo, kepler, and newton laid the foundation for what is now known as classical mechanics. it is a branch of classical physics that deals with particles that are either at rest or are moving with velocities significantly less than the speed of light. it can also be defined as a branch of science which deals with the motion of and forces on objects. the field is yet less widely understood in terms of quantum theory.

explanation:

cytokinesis is the splitting of a cell membrane to form 2 identical daughter cells. it's similar to mitosis as both cells have identical copies of dna and cytokinesis is a step in the mitotic cycle.