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A chemist needs 35.0 g of concentrated sulfuric acid for an experiment The density of concentrated sulfuric acid at room temp is 1.84 g or mL. What volume of acid is required?
Apachegirl
Density = Mass/Volume
1.84g/ml = 35.0g/V
V = 35.0g/1.84g/ml
= 19 milliliters of acid
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∙ 14y ago
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Excellent concentration
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little solvent and much solute r.s.c
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acccuracy
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control
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acccuracy
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temperature
What is the principle behind salkowski test?
a test for cholesterol. When concentrated sulfuric acid is added to a chloroform solution of cholesterol, the chloroform layer shows a red to blue colour and the acid layer shows a green fluorescence. [After Ernst Leopold Salkowski (1844 - 1923), German physiological chemist.]
A chemist hypothesizes that mercury oxide will undergo a decomposition reaction if it reaches a certain temperature When the chemist designs his experiment what should be the only independen?
temperature
What is the positive and importance results in salkowski and liebermann-burchard test?
A Salkowski's test is a test for cholesterol. When concentrated sulfuric acid is added to a chloroform solution of cholesterol, the chloroform layer shows a red to blue colour and the acid layer shows a green fluorescence. This test is named after a German chemist by the name of Ernest Leopold Salkowski.
When a chemist performs an experiment the quantity that being tested is the?
a. control d. law c. theory d. variable
Who discovered iodine and how?
Iodine was discovered by a French chemist called Barnard Courtois in 1811. He was extracting the compounds of sodium and potassium from the seaweed ash after which he added sulfuric acid (H2SO4) to further the process the ash.
