Chemistry, 10.06.2021 01:00, francisco42002
The concentration of particles in the air is really small, so the mass units need to be really small
as well. We commonly use micrograms instead of milligrams when measuring particle pollution
concentrations. We also need a lot of air, so we use a cubic meter instead of a liter of air. Imagine
a box of air that is one meter on each side. If my filter paper weighs 2.011 milligrams when clean
and 2.023 mg after I pump 1 m' of air through it, what would the concentration of particles be in
pg/m?
Answers: 3
Chemistry, 22.06.2019 05:40, wanderer3653
Fill in the coefficients that will balance the following reaction: a0cr2(so4)3 + a1agno3
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Chemistry, 22.06.2019 18:30, tanviknawale
Which sample at stp has the same number of atoms as 18 liters of ne at stp
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Chemistry, 23.06.2019 00:20, destromero
Which diagram represents the phase tha occurs after a solid melts?
Answers: 1
The concentration of particles in the air is really small, so the mass units need to be really small...
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