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Atmospheric measurements were performed during a 1 month period in early summer of 1997 at the Dead Sea in Israel in an attempt to identify bromine monoxide BrO, and evaluate its effect on ozone chemistry. The differential optical absorption spectroscopy (DOAS) technique was utilized to identify and measure BrO present in the air masses. Concurrent to the DOAS measurements, continuous monitoring of SO2, NO/NOx, O3, and CO was performed. Filter samples for aerosol analysis and whole air canister samples for bromocarbon analysis were also collected. The present paper reports the complete comprehensive data set of the measurements at the Dead Sea site and is a continuation to our preliminary communication [Heberstreit et al., 1999]. The more complete data now available enable a more detailed examination of the sources and mechanisms of the reactive halogen species and the presentation of new conclusions. The results showed a diurnal repeating cycle of O3 and BrO variations, correlated with solar radiation and wind direction. During the elevated BrO events, where bromine oxide rose to daily maximum values often exceeding 100 ppt, a clear negative correlation with O3 was observed. During these episodes, the O3 regularly decreased from noontime levels of 50-80 ppb or higher down to 10-30 ppb and occasionally to levels below the detection limit of 2 ppb. The enhanced BrO levels were associated with southerly winds that are typical for the location during midday hours. This suggests that a possible source for the reactive bromine species is the interaction of atmospheric oxidants with bromide at the surface of the large salt pans located at the southern end of the Dead Sea. Research flights flown over the area showed that ozone destruction to levels well below the background values were observed over large areas of the Dead Sea Valley.
-siddhartha pandey.
hindustan college of sc. & tech.
mathura u.p.
India
siddhuhcst064@gmail.com
What else can I help you with?
What is the name for the compound Br2O3?
The compound Br2O3 is called bromine trioxide. It is a chemical compound formed from bromine and oxygen atoms.
What is the empirical formula of an oxide of Bromine which contains 71.4 percent Bromine by mass?
The empirical formula of the oxide of Bromine would be Br2O5. We can determine this by assuming a 100 g sample, which would contain 71.4 g of Bromine and 28.6 g of Oxygen. Then we convert these masses into moles and divide by the smaller value to find the mole ratio, which gives the empirical formula.
Why is sodium hydroxide suitable for absorbing bromine?
Sodium hydroxide is suitable for absorbing bromine because it can react with bromine to form sodium hypobromite, which is soluble in water. This reaction helps remove bromine gas from the atmosphere. Sodium hydroxide is also a strong base that can neutralize any acidic impurities that may be present along with bromine.
Why do nitrogen oxide particles travel faster than bromine particles?
Nitrogen oxide particles travel faster than bromine particles because nitrogen oxides are smaller and lighter molecules, which allow them to move more quickly. Additionally, nitrogen oxides have lower molecular weight and higher temperature compared to bromine, which also contributes to their faster speed.
Is bromine ductile?
No, Bromine is not ductile as it is a non-metal
What is Br2 O?
bromine oxide
Megan heated a sample of the compound bromine oxide - a brown solid - and produced two different gasses. What most likely occurred?
The bromine oxide decomposed into bromine and oxygen.
What is the name for the compound Br2O3?
The compound Br2O3 is called bromine trioxide. It is a chemical compound formed from bromine and oxygen atoms.
What is the chemical name for BrO2?
The chemical name for BrO2 is bromine dioxide. Be careful though - bromite, which is different, is the name for the chemical BrO2-.
What is the empirical formula of an oxide of Bromine which contains 71.4 percent Bromine by mass?
The empirical formula of the oxide of Bromine would be Br2O5. We can determine this by assuming a 100 g sample, which would contain 71.4 g of Bromine and 28.6 g of Oxygen. Then we convert these masses into moles and divide by the smaller value to find the mole ratio, which gives the empirical formula.
Why is sodium hydroxide suitable for absorbing bromine?
Sodium hydroxide is suitable for absorbing bromine because it can react with bromine to form sodium hypobromite, which is soluble in water. This reaction helps remove bromine gas from the atmosphere. Sodium hydroxide is also a strong base that can neutralize any acidic impurities that may be present along with bromine.
What is the balanced equation for the combustion of bromine?
The balanced equation for the combustion of bromine is 2Br₂ + O₂ → 2Br₂O. This equation shows that two molecules of bromine (Br₂) combine with one molecule of oxygen (O₂) to form two molecules of bromine oxide (Br₂O).
Why do nitrogen oxide particles travel faster than bromine particles?
Nitrogen oxide particles travel faster than bromine particles because nitrogen oxides are smaller and lighter molecules, which allow them to move more quickly. Additionally, nitrogen oxides have lower molecular weight and higher temperature compared to bromine, which also contributes to their faster speed.
Which of the following molecules has a polar covalent bond iron oxide (Fe2O3) potassium chloride (KCl) bromine gas (Br2) hydrogen fluoride (HF)?
HF has a polar covalent bond.
What element reacts with bismuth?
Bismuth typically reacts with oxygen to form bismuth oxide. It can also react with halogens such as fluorine, chlorine, bromine, and iodine to form bismuth halides.
Slogan for bromine?
Bromine is bromine no matter how toxic
What is chemical name for BrCl?
Bromine Pentachloride is the name of BrCI5.
