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Crude petroleum is a mixture of many different components. How might one separate out the components to begin the process of refining petroleum? What property does the separation technique depend on? What overall effect does adding a solute to a solvent have on the melting point and boiling point of a liquid?
Explain What is the AXE notation of sodium chromate, barium nitrate, sodium nitrate, and barium nitrate
aluminum hydroxide reacts with sulfuric acid. whichreagent is the limiting reactant when 0.700 mol of aluminumhydroxide
One drop of 1N HCl is added to the stirred solution which is heated in a boiling water bath for 5 minutes. on cooling a precipitate is deposited which is collected and recrystallized in absolute alcohol. What is the product of this reaction
a certain second-order reaction has a rate constant of 1.75times10-3 at 27 and an initial half-life of 274 . what is
In the electrolysis of a solution containing Ni2+ (aq), metallic Ni(s) deposits on the cathode. Using a current of 0.150 A for 12.2 min, what mass of nickel will form
Write the balanced equation for the decomposition of NaHCO3, this time with the term "+ energy" on the appropriate side of the equation
Where did the emission of yellow-green fumes occur (the location)? Who is the person (e.g. a trained personnel) who will handle this emission? When did the emission of yellow-fumes take place.
How many grams of dry NH_4Cl need to be added to 1.60 L of a 0.700 it M solution of ammonia, NH_3, to prepare a buffer solution that has a pH of 8.62? K_b for ammonia is 1.8 * 10^{-5}.
Does there appear to be a relationship between the presence and absence of color in a salt solution and the position of the element in the periodic table
Question- How could you convert each of the following compounds into butanoic acid? Write each step showing reagents.
An unknown protein sample gave an absorbance of 0.867 ( corresponding to the average of three replicate analyses of the unknown sample). Calculate the mass (micrograms) of protein in the unknown. Calculate the absolute uncertainty for the answer.
Problem- Why does a crystalline version of a sample react more quickly than a powdered version of that same sample, even if the two have the same mass and number of reactive particles within them
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