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Drinking Water
Water, the liquid of life itself. How do we use it and how do we protect it? All these questions and more are bottled here.
2,365 Questions
What is the chemical oxygen demand of drinking water?
The chemical oxygen demand (COD) of drinking water is typically low, ranging from 1 to 5 mg/L. This value indicates the amount of oxygen required to oxidize organic and inorganic matter present in the water. High COD levels in drinking water can indicate contamination and the presence of pollutants.
At what temperature does pure water turn to steam?
Steam is created when water boils at 100 degrees Celsius, 373 degrees Kelvin or 212 degrees Fahrenheit. This is at the normal, standard temperature and atmosphere pressure.
How much of earths water is drinkable?
71% of the world is covered with water, but the oceans are so deep, 97% of the water on Earth is salt water.
Of the remaining 3%, about 2% is in glaciers or otherwise unattainable.
About 1% of Earth's water is drinkable quality found mostly in fresh ground water.
Can you dilute alcohol in the system by drinking water twenty four hours later?
No, on two reasons.
1.) Your body metabolises 1 unit of alcohol an hour. 1 unit is equivalent to one measure of spirits or half a pint of beer. By the time 24 hours hours has passed, most of the alcohol will have already been metabolised in your body, unless you drank more than 24 units.
2.) Drinking water does not affect the rate of alcohol breakdown at all. The only thing it will serve to do is to reduce the risk of dehydration if water is consumed as you drink alcohol.
Why should antacids be mixed with water before drinking?
Mixing antacids with water helps them dissolve faster and be absorbed more easily in the stomach, providing quicker relief for acid-related symptoms. Additionally, water helps to dilute the antacid, making it less likely to cause any irritation to the stomach lining.
What is added to drinking water?
Drinking water is typically treated with chemicals such as chlorine to disinfect and purify it. Fluoride may also be added to help promote dental health and prevent tooth decay. Additionally, minerals like calcium and magnesium may be added to improve the taste and provide additional health benefits.
What is added to drinking water to kill the bacteria in it?
Bacteria (usually) can be killed with ordinary soap or diluted cholrine bleach.
Is all clear cold colorless water good for drinking purposes?
Not necessarily. It is important to ensure that water is not only clear, cold, and colorless but also free from contaminants such as bacteria, heavy metals, and chemicals. It is recommended to have water tested for safety before using it for drinking purposes.
Why does salt water boil faster than plain water?
Because salt raises the temperature of the water so it reaches its boiling temperature faster.
Q: "Why does salt water boil more quickly than pure water"
A: "salt raise the temperature of the water"
Two remarks:1. The Q. is wrongly stated and should be corrected while answering (see below).2. The A. is a 'wrong' answer to 'another' Q.
"More quickly" means (in my opinion) 'at a lower temperature', thus water with salt boils at a HIGHER temperature than pure water (100 dgr.C).
This is because of the ions (+ and -) nesting in between the water molecules and add contraction forces between them.
(Cf. the addendum in the improved answer, below 2nd line)
Minor edit by another contributor: yeah, that's what I always thought too (that salt makes water take longer to boil). But I thought it was just me being an idiot again.
Higher boiling point
The answer to the question why do bubbles form when water is boiled? explains how, as the temperature of water rises, its molecules move around faster, collide more often and release more water vapor gas molecules. When the temperature reaches boiling point - about 100°C (212°F) - the pressure from the release of these molecules (the vapor pressure) becomes greater than atmospheric pressure and water vapor starts to escape as bubbles.
In salty water, Na+ and Cl- ions occupy some of the space between the water molecules. As temperature increases, although the water molecules are moving faster, there are less of them, so there are fewer collisions, less release of water vapor molecules and lower vapor pressure compared to pure water at the same temperature. It takes more energy (temperature) for the vapor pressure of salt water to reach and exceed atmospheric pressure and start to boil.
To raise the boiling point of one liter (34 ounces) of water by 1°C (1.8°F) requires about 58 grams (2 ounces) of salt. This is much more that the amount of salt typically added to boiling vegetables, which is done primarily for taste.
Federal standards for city-supplied drinking water are governed by the Environmental Protection Agency (EPA) under the Safe Drinking Water Act, which sets limits on various contaminants. Commercial bottled water, regulated by the Food and Drug Administration (FDA), must meet the same quality and safety standards as tap water but is subject to different testing and monitoring requirements. Additionally, bottled water may be subject to labeling regulations that differ from those for tap water.
How many pounds in a 1.00 liter bottle of drinking water?
A liter of water weighs approximately 2.2 pounds. So a 1.00 liter bottle of drinking water would weigh about 2.2 pounds.
Crabs absorb water through their gills from their environment, whether it's saltwater or freshwater. They may also moisten their gills to facilitate gas exchange and remove waste products while regulating their internal salt and water levels.
What happens if you stop drinking water?
Most believe drinking water to be harmless. And in most cases, that is correct. The most likely thing to happen to you after drinking excess water is a full bladder and a trip to the bathroom. Note that after drinking plenty of water, your urine will likely be a light yellow to clear liquid.
However, you don't want to over do it. Yes, you should drink pleny of water to keep yourself hydrated. A little more than usual won't hurt you. But should you take in too much water, you run the risk of hospitalizing yourself or worse.
Did you know that a woman died after drinking too much water during a water drinking contest to win a Nintendo Wii?
~Apple Juice
The concentration of substances in the blood is determined by the amount of water in it. If you drink a lot of water, more will be absorbed from your large intestine and the kidneys will produce a greater volume of dilute urine. If you do not consume enough water, you will urinate less and produce more concentrated urine.
Sorry I'm being nerdy today 8-)
Zingy xox
Is drinking ice cold water bad?
Drinking ice cold water is not inherently bad for you, however, some people may find it uncomfortable or irritating to their throat or stomach. It can also temporarily decrease your core body temperature, but this effect is minimal and generally not a health concern.
What percent of bacteria will water kill?
Water can kill a significant percentage of bacteria depending on the type and concentration of bacteria present. While some bacteria can survive and even thrive in water, others may be effectively killed by exposure to water through processes like drowning, desiccation, or osmotic shock. Overall, water has the potential to reduce bacterial populations in an environment.
Is Floride kill the bacteria in drinking water?
Fluoride in drinking water can help prevent tooth decay by making teeth more resistant to acid attacks. It does not directly kill bacteria in water, but it can indirectly help reduce bacterial growth by improving oral health.
Can ozone be used to remove H2S from drinking water?
Yes. Ozone is a very powerful oxidizer, and will oxidize H2S into sulfate ion which can be consumed without bad effect (it is a laxative in large enough quantities). This effectively removes the odour and taste associated with H2S.
Total Dissolved Solids (TDS) in water refer to the combined measurement of inorganic salts, organic matter, and other substances present in the water. Elevated TDS levels can affect water taste, clarity, and potentially indicate contamination. TDS is typically measured in parts per million (ppm) or milligrams per liter (mg/L).
Why is toilet water fresher than tap water?
It isn't. toilet water will sit in the tank just like tap water sits in the pipes, one is about as fresh as the other. Toilet water sits for a spell. If it sets for a long enough time, the chlorine will evaporate out of it. This takes 24 hours to be effective. Thus, it is cleaner than tap water, which has no evaporation rate.
8 ounces is equivalent to approximately 236.59 milliliters.
Does water have nutritional value?
Water does not have nutritional value in terms of providing essential nutrients like carbohydrates, proteins, fats, vitamins, or minerals. However, water is essential for hydration and proper body function. Staying hydrated is important for maintaining overall health and well-being.
How long after drinking salt water till you die?
Drinking salt water can lead to dehydration and electrolyte imbalance, which can be fatal. The exact time it takes to die after drinking salt water varies depending on factors such as the amount ingested, the individual's health, and access to medical treatment. In severe cases, death can occur within a few hours to a couple of days. If you suspect someone has consumed a toxic amount of salt water, seek immediate medical help.
