Air is 21 oxygen 78 nitrogen and 1 other gases what is the
Problem- Air is 21% oxygen, 78% nitrogen, and 1% other gases. What is the minimum volume of air in liters needed to extract 65 L of oxygen?
State your answer by means of three significant figures.
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problem- complete the following structural formula for a neutral molecule by adding h atoms to complete the valence of
problem- the following substances dissolve when added to water classify the substances according to the strongest
problem- a current of 400 a is passed through a nino32 solution how long in hours would this current have to be applied
problem- the ka of a monoprotic weak acid is 381 x 10-3 what is the percent ionization of a 0152 m solution of this
problem- air is 21 oxygen 78 nitrogen and 1 other gases what is the minimum volume of air in liters needed to extract
problem- about 42 of the 226 x 109 acres of us land is used for crops and livestock how many acres of land are for
problem- how many moles of copper are there in 128 grams of copper for copper 1 mole 63546 gramsi need proficient help
problem- the united states has the unit of currency dollars unit symbol a proper expression of the value seventy seven
problem- an independent experiment showed that the molecular weight of isopropyl alcohol is approximately 62 the
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