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As of the writing of this text, EPA standards limit atmospheric ozone levels in urban environments to 84ppb.How many moles of ozone would there be in the air above Los Angeles County (area about 4000 square miles; consider a height of 10m above the ground) if ozone was at this concentration?
If 159 of wet is collected over water at 24 and a barometric pressure of 737 , how many grams of have been consumed.
Determine how many moles of carbon dioxide should be added to the system to bring the equilibrium carbon monoxide concentration to 0.743 mol/L
Calculate how many grams of phosphorus are present in 2.68 moles of phosphorus pentachloride(PCl5) and also determine the numbers of moles of chlorine are present in 3.71 grams of phosphorus pentachloride?
Hardness in groundwater is due to the presence of metal ions, primarily Mg2+ and Ca2+. Hardness is generally reported as ppm CaCO3 or mmol/L Ca2+.
Compute the number of rads and rems of radiation in five years from such a level of plutonium.
Gas x effuses 0.629 times as far as oxygen under the same conditions. what is the molar mass of gas x.
Multiple choice questions in Radioactive Decay - electron emitted from the nucleus during some kinds of radioactive decay is known
A woman requires taking ibuprofen twice daily in 625mg amount. Each pill in the bottle is 250 mg then determine the number of pills the woman requires to consume each time she needs 625mg dosage
Using a sample of a compound containing only oxygen and chlorine reacts with an excess of H2 gas to give 0.206 g water and 0.278 g HCl . ClxOy in presence of H2 (g) → HCl + H2O all the oxygen
Elemental analysis of putrescine (The rotten smell of a decaying animal carcass is partially due to a nitrogen-contained compounded) showed
Heated and allowed to expand against a constant pressure of 1.20 atm until its volume reaches twenty eight Litres. Now determine Which of the given data is correct?
How many grams of MnSO4 can be prepared from the reaction of 15.0 g of KMnO4 with 22.6 g of H2SO3.
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