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Question- What colors and pigments corresponds to the bands in TLC that can be seen visually in spinach extract?
I want to know how this is done please show all steps in detail
Question- In conducting a titration of 75.00 mL of certain triprotic acid with 0.0800 M NaOH, the following information was recorded: 1) The first equivalence point was observed at pH 4.94 after the addition of 12.40 mL of NaOH.
the vapour pressure of heptane is 0.121 atm and vapour pressures of octane is o.o41atm. What is the total vapour pressure of the solution. What is the mole fration of heptane in vapour above this solution
The assay of a soda ash sample was reported as 65.21% Na2CO3. Express the carbonate content in terms of percent CO2 and percent carbonate ion.
If two molecules are non-superimposable but are mirror images are they enantiomers or the same molecule
The final, dried product weighed 0.1314 g. What is the percent weight of Zn (65.39 g/mol) in the original sample
Complete and balance the following equation: BrO3^-(aq)+N2H4(aq) -> Br2(l)+N2(g) (acidic solution) And identify the oxidizing and reducing agents from the resulting balanced equation.
An unknown solid mixture containing benzoic acid,copper(II)sulfate and sand. She added 15mL.of acetone to her sample. Which component of the mixture dissolved in the acetone?
Use the masses of carbon dioxide, rm CO_2, and water, rm H_2O, to determine the empirical formula of the alkane component.
can a reaction consist of both a single step bimolecular reaction and a unimolecular decompostion
Ethylene glycol, CH2(OH)CH2(OH), an important ingredient in automobile antifreeze, is much more soluble in water than octyl alcohol, CH3(CH2)6CH2OH, because
nbspo2 make up of 46.7 percent by mass of earths crust. if a sample of earths crust has a mass of 325 grams then
When you calculated k in the rate equation for the reaction of KMnO4 solution and H2C2O4 solution you assumed k had the same value under the conditions of determinations 1,2, and 3.
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