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Why sea water has a higher hydrometer reading than that of freshwater?
Wiki User
∙ 10y ago
Seawater dissolves more than fresh water because of the salinity in the water.
Wiki User
∙ 12y ago
Wiki User
∙ 7y agoThe seawater is not pure water !
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Why is the sea water and freshwater pH different?
Since sea water is much denser than freshwater, the pH level would be higher. The saline levels in the sea water contributes to a higher acidic level.
What is the name of the tool that compares the density of water to that of coolant?
hydrometer
What is a hydrometer and how does it measure density?
A hydrometer is an instrument that measures the density of a liquid. How this works may be easiest to understand by using a hypothetical example with a human as the hydrometer.Freshwater PoolLet's say you're at a resort that features two swimming pools. One pool is freshwater, the other saltwater. You go into the freshwater pool and take with you a waterproof marker. No one else is in the pool, so the water is still. You lower yourself into the deep end, slowly and carefully so you disturb the surface as little as possible. You tread water slightly and only make enough movement to keep yourself upright. Once you're not bobbing up and down at all, you make a mark on your skin with the marker right at the water level. We'll assume that, because of your particular body mass and your general makeup, the mark ends up on your chin.Saltwater PoolNow you go into the saltwater pool with all the same conditions and repeat the whole process. The mark you make in the saltwater pool will be somewhere lower on your body than the mark from the freshwater pool. Why? Because saltwater is denser than freshwater. You---in this hypothetical example---just demonstrated that fact by serving as a human hydrometer. A hydrometer will not sink as deeply in a dense liquid as it will in a liquid that is less dense.Hydrometer FeaturesActual manufactured hydrometers vary somewhat in design, but a typical example would be one about the size of a pen. It's a sealed glass tube with a ballast weight in the bottom (mercury or lead possibly). The upper part of the hydrometer---the part that will bob up above the surface of the liquid---has a graduated scale on the inside. This allows the user to place the hydrometer into the liquid, wait for it to come to rest, then take a reading that will indicate the liquid's density.ApplicationsHydrometers are useful in many applications. One interesting one is the finishing of maple syrup. After maple sap has been boiling and has reached just the right density to be called syrup, a hydrometer placed in it will float at a specific level. If it floats too low, the sap hasn't boiled off enough water and is still too light and thin. If the hydrometer floats too high, the syrup has become too thick and dense and the maple producer will probably have to make something else, like maple sugar candy, instead of syrup. The hydrometer has to give a reading that's just right for it to be the proper density for maple syrup. Hydrometers are used in brewing and wine making and in many other industries. Hydrometers are also used to test the acid in a lead acid battery (like the ones used in automobiles): if the battery's charge is too low, so also will be the concentration or density of the acid.
How do you check deminerlized and distilled water quality?
I think, the best way to check water is the use of a hydrometer. Pure (distilled) water has a Specific Gravity (SG) of 1.000. So check it with a hydrometer, if it's SG is one than it is distilled water otherwise contaminated.
Why is the hydrometer used to find density?
A hydrometer can be used to find the specific gravity (relative density) of a liquid by determining how much water it will displace. Various calibrations are used for different kinds of liquids.
Will hydrometer float higher in fresh air or salt water and why?
In salt water because a hydrometer sinks deeper if the liquid is less dense than water, The hydrometer floats higher if the liquid is denser than water.
Will a hydrometer float higher in fresh or salt water?
Salt Water
Why is the sea water and freshwater pH different?
Since sea water is much denser than freshwater, the pH level would be higher. The saline levels in the sea water contributes to a higher acidic level.
How long does salt last in salt water fish tanks?
Forever. The problem is, the water evaporates...and it doesn't take the salt with it. You need a hydrometer to test the specific gravity of your water so you know when to add more freshwater. (That sounds strange, but it's true: freshwater dilutes the saltwater so your fish don't die.)
What is the zero correction and meniscus correction in hydrometer analysis?
· Zero Correction (Fz): If the zero reading in the hydrometer (in the control cylinder) is below the water meniscus, it is (+), if above it is (-), if at the meniscus it is zero.· Meniscus Correction (Fm): Difference between upper level of meniscus and water level of control cylinder.
What are words with hydro meaning water?
hydrogen, hydrometer, hydroponics, hydrophobia
Does specific gravity of wine go up or down with sugar?
A hydrometer will float higher in a heavy liquid giving a lower reading, such as one with a quantity of sugar dissolved in it, and lower in a light liquid, such as water or alcohol.Therefore the specific gravity goes down with sugar.
Why does oxygen stay in contact with salt water longer then freshwater?
Because salt water has higher density
Where would a bloat float higher in salt water or fresh water?
Yes salt water is more dense than freshwater so a boat should sit higher in it than freshwater, the density is related to the amount of salts and other heavier-than-water particles dissolved in the water.
Can salt water from the ocean be changed to freshwater by the water cycle?
no it can not because the minerals in the ocean are at a higher level then fresh water.
Why can we float easier in the sea than in a freshwater lake?
The density of salt water is higher than fresh water.
Should competitive swimmers train in a salt water pool?
No. Saltwater is denser than freshwater, and your body will be more buoyant. You will be higher in the water and, therefore, will have less water resistance. You will swim faster, but will not get as good a workout as in freshwater.
