Interpretation:
The steps that should be taken to minimize the intake of lead from tap water are to be determined.
Concept Introduction:
Water is a common liquid that is present on the Earth.
It is also known as universal solvent. It can dissolve a wide range of organic and inorganic solutes.
Water is vital for the existence of all living animals. Without water, no life form can exist, it constitutes an important part of rivers, lakes, streams, clouds, snow and ice.
Water is truly an unusual molecule such that being a low molar mass compound, it exists as a liquid at room temperature and has an anonymously high boiling point.
Ice floats on water because it has a lower density than water.
Water contains some unwanted particles which can lead to diseases and other hostile effects on human health.
Numerous types of micro-organisms such as bacteria are present in water, which contaminate the water.
Biological contaminants: Some microbes can live in water and can cause various diseases like cholera, dysentery, and so on. Two examples of such microbes are Giardia and Legionella.
Inorganic contaminants: Some inorganic molecules can dissolve in water and make it impotable (not suited for drinking). Two examples of such molecules are Nitrates and Asbestos.
Organic contaminants: Some organic molecules can dissolve in water and makes it impotable (not suited for drinking). Two examples of such molecules are chlorohydrocarbons (volatile) and ethylbenzene (non-volatile).
Radioactive contaminants: Some radioactive elements can dissolve in water and make it impotable (not suited for drinking). Two examples of such elements are Uranium and Radium.
Contaminants that pose immediate health risks are the biological contaminants and inorganic contaminants because they get immediately dissolved in blood and starts reacting with it.
Contaminants that can be eliminated by boiling are the biological contaminants because the microbes can be killed by increasing the temperature.
Hot water dissolves lead more than cold water does.
Want to see the full answer?
Check out a sample textbook solutionChapter 12 Solutions
Chemistry In Focus
- In your own words, explain why (a) seawater has a lower freezing point than fresh water. (b) salt is added to the ice in an ice cream maker to freeze the ice cream faster.arrow_forwardExplain the concerns that groups like the EWG or NRDC have about drinking water quality.arrow_forwardGive information about hard soap and soft soap.arrow_forward
- What are the essential components that a shampoo must have in order for it to have the right properties? (thickener, chelator, etc)arrow_forwardList the Ionic constituents of Seawater?arrow_forwardWhat were the differences between solvents that dissolved aspirin the best/worst? Explain with structural comparisons and intermolecular forcesarrow_forward
- 22. Calculate the daily water requirement for a healthy adult weighing 165 lb. who is 5'10" tall.arrow_forwardXylometazoline hydrochloride paediatric nasal drops are formulated as a 0.05% w/v solution. What amount of xylometazoline hydrochloride is present in 10 mL of solution?A) 1 mgB) 5 mgC) 10 mgD) 50 mgE) 100 mgarrow_forward3 Ways to separate Alcohol, water, diesel and blood and its step by step procedurearrow_forward
- Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning