2. Explain with practical examples the negative impacts of chemistry in relation to society (Hint: pollution). 3. Suggest possible solutions how the knowledge from chemistry can be used to prevent environmental damages and/or climate change.
Q: Atmosphene scientists ofien use mixing ratios to express the concentrations of trace compounds in…
A: The given data contains, Total pressure=635 torr.Temperature=0°C.Concentration of CO=2.5×102ppmv.
Q: use ion exchange method in analytical separation to separate mercury and nickel from polluted water…
A: Basically the river bodies are polluted by the heavy metals like Cadmium,Mercury,nickel. Mainly…
Q: Why is understanding of chemistry important to the study of human anatomy and physiology
A: Chemistry Chemistry is a branch of science that involves the study of the composition, structure…
Q: We were given an activity about observing 2 balloons. 1 balloon is in the basin with cold water and…
A: The balloons are filled with air inside i.e. it contains large number of gas molecules. Now,…
Q: Concentration of Solutions Children's toys and jewelry were assessed for their contamination by…
A: Solution: Given : molecular wt. of As = 74.92 g/mol…
Q: Discuss the contribution of Amadeo Avogadro to the quantitative aspect of Chemistry.
A: Amedeo Carlo Avogadro is an Italian chemist, well known for Avogadro's law and Avogadro's number or…
Q: Peter, James, and John performed an experiment on acids, bases, and solvents inside the laboratory.…
A: Given: Peter, James and John handling aqua fortis, caustic potash and acetone respectively inside…
Q: What is the role of Chemistry in environmental protection?
A: The role of Chemistry in environmental protection has to be given,
Q: A water sample is found to contain the pollutant chlorobenzene with a concentration of 15 ppb (by…
A: Given, The concentration of chlorobenzene present in the water sample = 15 ppb (by mass) The amount…
Q: Explain the concept of analytical chemistry regarding soil pollution
A: Interpretation - To explain the concept of analytical chemistry regarding soil pollution -…
Q: More than 40% of the world's population has limited access to clean water. One proposed method for…
A: Separation technique is used for the purification and separation of substance. Some of the…
Q: Discuss the advantages and disadvantages of using chlorine as disinfectant.
A: An antimicrobial agent that can be applied to the surface of some things in order to eradicate the…
Q: Define each of the followings: (1) environmental science, (2) Environmental Chemistry, (3)…
A: Definitions: (1). environmental science:
Q: In a few lines, describe the IMMENENT IMPORTANCE of “Green Chemistry" and its importance to Society.
A: Green chemistry: The branch of chemistry which deals with the reduction of the harmful effect of…
Q: 2. Make a list of some facts in this article that relate to what we have studied so far. What We…
A: 1 As bectrium are able to substitute phosphorus with arsenic it indicates that chemistry of arsenic…
Q: Explain in detail. 1a)Does the production of biofuels disrupt global biodiversity b)Explain…
A: Biofuel production can affect wild and agricultural biodiversity in some positive ways, for…
Q: Answer the following questions. 1. What are the benefits of green chemistry? 2. How can…
A: 1. If one follows green chemistry guidelines, then environmental benefits are:− there is check on…
Q: what are the research gaps in carbon trading?
A: Answer - Carbon trading - Carbon trading is the process of buying and selling permits and credits…
Q: How is personal risk analysis done when working with hazardous chemicals?Explain step by step
A: Step 1: Personal chemical risk analysis involves the identification of chemical hazards in the…
Q: If the furnace initially contained 22.322.3 kg of solid calcium oxide and 10.510.5 kg…
A: Given: Mass of CaO = 22.3 kg Mass of P4O10 = 10.5 kg To find: mass of calcium phosphate in kg…
Q: Which of the following materials would make a better shield from radiation? i) Iron (density =…
A: To find: The material which make a better shield from radiation
Q: how important is chemistry in solving ecological problems?
A: The major environmental problems are pollution, global warming, ozone layer depletion, acid rain,…
Q: What is the practical importance of extraction in relation to chemistry especially when it comes to…
A: Extraction is important for Isolating important materials from plants .
Q: What is reservior in environmental chemistry? What are O1D (O singlet D) and O3P( O priplet P)? Not…
A: As follows.
Q: In a few lines, describe the IMMENENT IMPORTANCE of "Green Chemistry" and its importance to society…
A: Green chemistry: The branch of chemistry which deals with the reduction of the harmful effect of…
Q: Natural way of food preservation has been part of the Filipino cuisine and food culture, this…
A: FOOD PRESERVATION: The method of handling food products to avoid spoilage and to prevent the food…
Q: What does CFA's stand for in chemistry?
A: CFA's stands for - Chemical foaming Agents
Q: Which of the following is not one of the 12 principles associated with green chemistry? real-time…
A: • Green chemistry is defined as environmentally benign chemical synthesis. • It is also called…
Q: Explain the idea of “synergistic effects.”
A: Given : To explain synergistic effects
Q: 4. Identify and explain the safety procedures and precautions that should be followed when working…
A: Please find your solution below : The safety procedures and precautions that should be followed when…
Q: b. From the principles of Green Chemistry, design at least 2 procedures that you can practice or…
A: HAZARDOUS SUBSTANCES WHICH ARE HARMFUL FOR NATURE AND WELL BEING.
Q: The study of detecting small quantities of substances in samples would most likely be performed by a…
A:
Q: 4) But the real angler continues, regardless of the local sage. What sort of tone does the author…
A: The sort of tone does the author create by using the connotative effects of the word sage in…
Q: What is the importance of Chemical Safety in the laboratory
A: The role of chemical safety in lab is very high. If we do not use precautions before experiment we…
Q: The Ottawa Charter is increasingly used to guide the development of health promotion activities in…
A: The very first international conference on health promotion was held on Ottawa on 1st November,…
Q: What is the method of analysis for the chemical pollutants of soil pollution?
A: The most common soil pollutants are heavy metals such as Lead (Pb), Mercury(Hg), Arsenic(As) ,…
Q: What is the difference between single use, limited use and reusable chemical protective garments?
A: Single use chemical protective garments : these are the garments which can be used only one time…
Q: Write a paragraph explaining the meaning of the phrase "Its dose that makes the poison". Supoort…
A: Almost 500 years ago, the Swiss physician and chemist Paracelsus formulated the basic principles of…
Q: 1. Bats are in the limelight these days because they are rumored to be the source of COVID-19, the…
A: So the paraphrase goes like
Q: Using suitable examples, discuss the chemical, biological, and physical reactivity processes of…
A: Inorganic and organic contaminations are the two main types of chemical contamination and it is due…
Q: Give scenarios or examples on how chemistry is used or applied in the following categories:…
A:
Q: > Why is analytical chemistry a powerful tool in environmental investigation?
A: The analytical chemistry plays an important role in environmental Investigation by providing…
Q: Is it acceptable to recycle the containers of hazardous chemicals? Why or why not? Explain your…
A: Yes , it is acceptable to recycle the containers of hazardous chemicals. The residue within empty…
Q: Environmental science is an interdisciplinary field of study. This means that... * Multiple branches…
A: Correct answer is Option A
Q: How and why can two lethal elements combine to form an essential compound for health
A: The combination of elements of identical features furnishes the molecules. For example, when two…
Q: Boron is concentrated mainly in the lungs (0.34 mg), thyroid gland (0.30 mg), spleen (0.26mg), brain…
A: Given that, Amount of boron in lungs = 0.34 mg Amount of boron in thyroid gland = 0.30 mg Amount of…
Q: Give one event that carbon monoxide poisoning may happen
A: Carbon monoxide is the odourless and tasteless gas and it is toxic to animals and humans. Carbon…
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- A sample containing iron is approximately 99.0% w/w Fe. Using ammonia, iron is precipitated as Fe (OH)3 which is ignited to Fe203. (a) What is the gravimetric factor for analyte Fe (AW=55.85 g/mol) and precipitate Fe203 (FW=159.69 g/mol)? (b) What mass of sample is needed to ensure that the Fe203 precipitate would weigh at least 1.00 g?An experiment was conducted to determine the effect of glucose on the freezing point of water. Experimental data showed thatthe freezing point depression of water in solution was –2.6°C when 1.0 g of glucose was dissolved in 10g of solvent. Calculatethe expected freezing point for such solution and compare the expected freezing point to the value found experimentally. Give aplausible explanation for any discrepancies. (M.W. of glucose= 180.16g/mol; i=1). Show all your work.Show all steps leading to the final answer po. Here’s a pdf file in accordance with the topic po: https://drive.google.com/file/d/1_FnDtXCrFKSol3RNWIG_9tNQ7IxgxD6t/view?usp=drivesdk
- Chemistry An aquifer contaminated with petroleum is found to have the following component concentrations at a particular site: benzene158 ppm toluene124 ppm ethylbenzene91 ppm xylene45 ppm n-heptadecane161 ppm pristane 84 ppm Provide an estimate for the age of the spill at this site using (a) BTEX ratio and (b) nC17:Pr ratio. Show your calculations and use units throughout. Give proper s.f. for the answer.An aquifer contaminated with petroleum is found to have the following component concentrations at a particular site: benzene 158 ppm toluene 124 ppm ethylbenzene 91 ppm xylene 45 ppm n-heptadecane 161 ppm pristane 84 ppm Provide an estimate for the age of the spill at this site using (a) BTEX ratio and (b) nC17:Pr ratio. Show your calculations and use units throughout. Give proper s.f. for the answer.Determine the percentage Fe in a sample of limonite from the following data:Sample : 0.5000g ; KMnO4 used = 50.00 ml ; 1.000ml of KMnO4 is equivalent 0.005317 g Fe,FeSO4 used = 6.00 ml; 1.000ml FeSO4 is equivalent 0.009200 g FeO ( ans 44.59 %)
- A water contains 50.40 mg · L−1 as CaCO3 of carbon dioxide, 190.00 mg · L−1 as CaCO3 of Ca2+ and 55.00 mg · L−1 as CaCO3 of Mg2+. All of the hardness is carbonate hardness. Using the stoichiometry of the lime soda ash softening equations, what is the daily sludge production (in dry weight, kg · day−1) if the plant treats water at a rate of 2.935 m3 · s−1? Assume that the effluent water contains no carbon dioxide, 30.0 mg · L−1 as CaCO3 of Ca2+ and 10.0 mg · L−1 as CaCO3 of Mg2+. Be sure to calculate the mass of CaCO3 and Mg(OH)2 sludge produced each day.The global emissions of methane have been estimated to be near 9,390 million metric tons of CO2 equivalent, assuming there is a GWP of 25. Calculate the residence of methane in the atmosphere. If the concentration of methane in the atmosphere is 1.55 ppmv. Can an expert, please show me how to solve the question above?The %purity of a powdered crude sample of Na2CO3 containing only inert impurities is to be determined by reacting 225.0 mg of the crude sample to 10.0 mL of 3.00 M HCl solution, and bubbling the resulting CO2(g) product in water that is at exactly 29 °C. After the reaction has completed, the level of the liquid inside the eudiometer rests 4.30 cm above the water level in the beaker. The graduation on the eudiometer indicates that the trapped gas is 44.37 mL. The experiment was done under a barometric pressure of 755.2 torr. a. How many moles of CO2 were collected? b. What is the percent purity of the sample? Round off to the nearest whole number
- The %purity of a powdered crude sample of Na2CO3 containing only inert impurities is to be determined by reacting 225.0 mg of the crude sample to 10.0 mL of 3.00 M HCl solution, and bubbling the resulting CO2(g) product in water that is at exactly 29 °C. After the reaction has completed, the level of the liquid inside the eudiometer rests 4.30 cm above the water level in the beaker. The graduation on the eudiometer indicates that the trapped gas is 44.37 mL. The experiment was done under a barometric pressure of 755.2 torr. What CASE does this experiment satisfy?In the synthesis of hydrocarbons, the carbon source is carbon dioxide. Although the CO2 concentra?on in the atmosphere raises at a drama?c speed, point sources are probably the easier sources for a PtX process. Iden?fy 3 possible point sources, explain why CO2 is formed and what challenges each of the three CO2 streams presentsMany rivers are affectwd by illegal small scale mining. Study have revealed extremlly high deposite of heavy metals and particulate matters in rivers, making them unwholesome for drinking. With your knowledge in analytical seperation and analysis, .outline a suitable analytical protocol that can be employed to recover polluted water bodies and make them wholesome for drinking.