How does the concept of “representativeness” relate to proper sampling and analysis of environmental contaminants?

Q: Specify how the principle of constant proportions can be used to determine seawater salinity by…

A: Salinity is the property of ocean water that measures the conductivity of ocean water.

Q: 2. Explain how suction filtration is carried out in the laboratory. Give the important points that…

A: As per bartleby guidelines I answered only first question so please don't mind.Thanks in advance.

Q: Convert these values 5.0 mg/L seawater to ppm

A: The mass of solute in mg present in a one-liter solution is known as ppm (parts per million)…

Q: 1-What are the effects of requisites of drinking water?

A: Our planet is made up of more than 71% of water .  Our body constitutes of 60% of water.  Even our…

Q: Explain the stages of the formation of crude oil and gas in a flow chart.

A: The stages of the formation of crude oil and gas

Q: 11. Hypothesize why plastic weigh boats, paper towels and plastic pipets continue to be found in the…

A: Laboratory produces tones of plastic waste every year.This because  many pipettes , petri dishes ,…

Q: Which activities are likely to cause contamination of stock chemicals in the laboratory? pouring out…

A: When the stock chemicals get contaminated by some activities then, the activity of the chemicals…

Q: Discuss the relationship of the water hardness of the sample with the environment. What could be the…

A:

Q: TRUE OR FALSE __________ 6. Glassware is clean when no water droplets cling to the inner wall of the…

A: For every chemist should know about the chemical laboratory safety guidelines and should understand…

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: Which of the following is FALSE regarding water treatment? A Settling of floc during sedimentation…

A: The correct option is:

Q: Describe the differences between flocculated and deflocculated suspensions.

A:

Q: Give three examples of How Dissolved Oxygen levels can change due to human interaction with the…

A: The three examples that how dissolved oxygen levels can change due to the human interaction with the…

Q: Anhydrous acetonitrile contains less than 0.001 wt% water. Express the water impurity in ppm.

A: Given  Water impurity in acetonitrile = 0.001 % wt  Water impurity in acetonitrile in ppm = To be…

Q: 5. Why does slow distillation result in better separation of two liquids than fast distillation?

A: Distillation is a separation technique in which liquid components are separated  bu virtue of the…

Q: 1. WATER POLLUTION VIDEO a. Describe the three categories of water pollution. b. What is…

A: Water pollution is a major problem nowadays. Water occupies major part of the earth but water that…

Q: The recommended limit for safe exposure to sulfur dioxide in the air is 0.000025%. What is this…

A: Given,  Mass percentage of sulfur dioxide in the air = 0.000025%  Then,  What is this concentration…

Q: What is the purpose of Safety Data Sheets? Why are these important when handling common food service…

A:

Q: Believe it or not, there is gold dissolved in the Earth’s ocean! The concentration can run as high…

A: We have to calculate mass of gold.

Q: There are three different ways in which salting' can take place. What is salting and why, though it…

A: Salting : Salting is a food preservation technique in which the food is surrounded in salt and left…

Q: What is the full form of ppm ? For what purpose it is used.

A: The term ppm can be described as the types of the mass related units that would be used to determine…

Q: Complete answers with solution. Enclose your final answer in a box. 1. What is the % composition of…

A:

Q: Which activities are likely to cause contamination of stock chemicals in the laboratory?

A: Answer - Contamination of stock chemicals in the laboratory - The most common biological…

Q: Propose how the components of a mixture containing benzene, toluene, and water can be separated.…

A:

Q: How do contaminants transfer within an ecosystem or between ecosystems?

A: A substance that pollutes or contaminates a system is called a contaminant. It can be toxic or…

Q: Which method of determining salinity is least likely to be used by current oceanographers

A: The concentration of salt present in the sea-water is termed as salinity. The salinity is measured…

Q: What type of activities will you prepare to explain for students to explain the different types of…

A: Solution Every style of pollution has 2 sources of occurrence; the purpose and therefore the…

Q: Copper and lead is a potential contaminant of tap water Give 5 mitigation measures to reduce the…

A: A question based on environmental pollution that is to be accomplished.

Q: why do we use carbon monoxide monitors indoors? In normal situations is carbon dioxide considered A…

A: CO binds to heme of hemoglobin and hinders the transfer of oxygen molecule through blood which can…

Q: Which of the following best explains why soap and water remove grease? O Soap molecules are large…

A: Soap, water, and oil are all made up of molecules. Some molecules are hydrophilic, (hydro=water and…

Q: 4. Why does the local government prohibit people living in the barrios to launder nearby rivers and…

A: 4) The local government prohibited people living in the barrios to launder nearby rivers and lakes,…

Q: On a soap molecule, identify which end is known as being polar and which end is known as being…

A:

Q: Please provide some examples of how biotic or abiotic factors affect contaminant support, like point…

A: The release of hazardous chemicals into the atmosphere is referred to as pollution. Pollutants are…

Q: What are biodegradable and non-biodegradable detergents ? Give one example of each.

A:

Q: Would the compound methane, CH4 be soluble or insoluble in water under normal laboratory conditions?…

A: The general solubility rule is " like dissolves in like " It means polar substances are soluble in…

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: Is 10 ppm 400% less than 50 ppm?

A:

Q: Which among of the following is a source of water pollution? a. Pathogens b. Organic material c.…

A: Pathogens: Pathogens transmitted through contaminated water causes various diseases like typhoid,…

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: Explain the methods of household contaminated wastewater purification

A: Untreated sewage water in such areas can contaminate the environment and cause diseases such as…

Q: Please answer sub parts D and E   QUESTION 2.  Water is a polar solvent and hexane (C6H14) is a…

A: In chemistry, it is a rule  Like dissolve like It means polar compound dissolve in polar solvent and…

Q: What are the roles of polymers in Cosmetics? Give at least 2 examples in each role.

A: Polymers are widely used in the cosmetics industry. Some of the major uses are  1) conditioners 2)…

Q: Which of the following is NOT a reason why Globally Harmonized System (GHS) is necessary: A) Ease of…

A: A multiple choice question based on environmental chemistry that is to be accomplished.

Q: property

A: Dear student I have given answer to your question in the image format.

Q: Besides needing clean water for drinking purposes , identify TWO other reasons why humans need clean…

A: A question about need for clean water, which is to be accomplished.

Environmental Pollution

Environmental pollution occurs due to some unwanted alteration in the surroundings which results in unfavorable effects on all organisms of that surrounding.