A lungful of air (339 cm3 ) is exhaled into a
machine that measures lung capacity. If the
air is exhaled from the lungs at a pressure
of 1.61 atm at 43.6
◦C but the machine is at
ambient conditions of 0.958 atm and 23 ◦C,
what is the volume of air measured by the
machine?
Answer in units of cm3
.

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b. accuracy of the data matters alot more than its number of digits, organization or amount of detail. quantitative observation is more accepted than the qualitative observation.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.