0
Water was used as the standard because at first, the cubic centimetre was defined so that pure water, at 4 deg C and a pressure of 1 bar, had a density of 1 gram per cubic centimetre. The specific gravity of other substances, being the ratio of their density to that of water, meant that their specific gravity would have the same numeric value as their density. However, an error in defining the centimetre resulted in a change in its definition and the density of water is no longer 1 g/cm3.
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
How do you convert specific gravity 0.8349 to pounds per gallon?
For this I will use water as the unit of measure. Based on the lbs per gallon of water @ 4 degrees Celsius which is 8.33 8.33 is a specific gravity of 1 The equation to determine lbs per gallon using a basis of water lbs per gal = (sg * 8.33) So if you have 0.8349 as your specific gravity: (0.8349 * 8.33) = 6.954717 (lbs per gal) The equation to convert pounds to gallons of a different fluid that has a variable specific gravity would be: gallons = lbs / (sg * 8.33) If I have 5 pounds of a lubricant with a SG of 1.2 5 / (1.2 * 8.33) = 0.5 (gallons) http://www.engineeringtoolbox.com/water-gallons-pounds-d_1710.html
How can you determine the identity of an irregularly shaped solid that is soluble to water?
you would use the water displacement theory
Purity of milk is measured by which instrument?
Lactometer is used t measure the purity of milk Lactometer is an instrument invented by Mr. Dicas, of Liverpool, for the purpose of ascertaining the different qualities of milk from its specific gravity compared with water. On this subject Dr. Ure observes, that it is not possible to infer the quality of milk from the indications merely of a specific gravity instrument, because both cream and water affect the specific gravity of milk alike. "We must first use as a lactometer a graduated glass tube, in which we note the thickness of the stratum of cream afforded, after a proper interval, from a determinate column of new milk; we then apply to the skimmed milk a hydrometric instrument, from which we learn the relative proportions of curd and whey. Thus the combination of the two instruments furnishes a tolerably exact lactometer."
What method do scientist use to determine the earth layers?
Type your answer here... D.Comparing the composition of the crust to other bodies in the solar system
Where use manometer?
To determine Pressure
Why use kerosene in the test specific gravity of cement?
Kerosene, a petroleum product will not interact chemically with Portland cement - water will.
What is the expression for specific gravity when kerosene is used instead of distilled water?
Specific gravity is the ratio of density of material to the density of water, so when we use Kerosin instead of water then the value will be multiplied by the specific gravity of kerosin to get the actual specific gravity.
How to determine specific gravity of oils?
The term specific gravity means density in comparison to that of water. Density is weight divided by volume. So to get the volume, pour the oil into a graduated cylinder or measuring cup (same principle). To get the weight, use a scale (a chemist would use a triple beam balance). Once you have the density you can divide it by the density of water, and the result is the specific gravity.
How did early prospectors use density to determine whether they had found gold or pyrite?
Specific gravity.
How can i use the word hydrometer in a sentence?
Mrs.Tuft used a hydrometer to determine the specific gravity of a liquid
How do you convert specific gravity 0.8349 to pounds per gallon?
For this I will use water as the unit of measure. Based on the lbs per gallon of water @ 4 degrees Celsius which is 8.33 8.33 is a specific gravity of 1 The equation to determine lbs per gallon using a basis of water lbs per gal = (sg * 8.33) So if you have 0.8349 as your specific gravity: (0.8349 * 8.33) = 6.954717 (lbs per gal) The equation to convert pounds to gallons of a different fluid that has a variable specific gravity would be: gallons = lbs / (sg * 8.33) If I have 5 pounds of a lubricant with a SG of 1.2 5 / (1.2 * 8.33) = 0.5 (gallons) http://www.engineeringtoolbox.com/water-gallons-pounds-d_1710.html
Would turpentine settle to the bottom when mixed with water?
No. Turpentine does not sink in water. Like many oil based organic solvents, turpentine floats in pure water. Engineers and scientists use a measurement called Specific Gravity to measure how dense a liquid is in comparison to that of water. Pure turpentine has a Specific Gravity of 0.85(@25 deg Celsius). On the other hand, water has a specific gravity of 1.0. That means that turpentine at will eventually float to the top of a water bath.
How do you determine specific heat for sodium without water?
Sodium reacts explosively with water, so it is not advisable to do a specific heat experiment with water. Instead use a non-exploding solution such as naphtha or a chlorobezene.
Why do scientists use specific gravity?
I believe the reason behind using specific gravity is that it is easier to measure (especially when you're measuring it for a solid).
What is a specific gravity?
I just learned about this in chem11. I'll give the definition off my sheet. Specific gravity is a dimensionless unit defined as the ratio of density of a material to the density of water at a given temperature (usually at 4oC). Note that this expression is obsolete today; use the density.
What is the specific gravity of aluminum in pounds?
Specific gravity is not measured in pounds. It is a dimensionless quantity, which results by dividing (in this case) the density of aliminium, by the density of a reference substance, usually water. The result of the division will be the same, whether you use international units (SI, i.e. metric), or obsolete units.
Why do scientists use specific gravity instead of density?
Since specific gravity is an ideal quantitative respresetnation of the denstiy (kg/m^3) of a substance relative to the denstiy of distilled water, specific gravity can be used interchangably with measures of Osmolality (moles/1kg of solvent). This relationship is readily observed throughout the physical implications of homeostasis within the endocrine system.
