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Why do living organisms prefer aerobic respiration to anaerobic respiration?
A white precipitate formed when the barium hydroxide solution was mixed with the sulphuric acid. *Mass of filter paper=0.96g *Mass of filter paper and precipitate=5.25g
At a certain temperature, Kc for the reaction, PCl5 = PCl3 + Cl2, is equal to 3.33. After 0.20 mole of PCl5 and 1.0 mole of PCl are introduced into a 2.00-L evacuated chamber, calculate the equilibrium concentration of PCl5
Phosphorus-32 has a half-life of 14.0days . Starting with 4.00 g of 32p , how many grams will remain after 42.0 days?
Consider the four polysaccharides amylose, spartylose tarhylose and ranylose. Amylose is the unbranched polymer of a-(1Ã 4) linked glucose molecules found in starch, while spartylose, tarhylose and a Blue Devylosea
Explain what is the oxidation state of the transition metal in the coordination compound Co(NH3)3(SCN)2+. Is the subsequent compound typically used as an oxidizing agent or a reducing agent in aqueous solution
Calculate the pH at the equivalence point in titrating 0.110 M solutions of each of the following with 8.0×10-2 M NaOH.
Mount Kilimanjaro has an altitude of 19350 ft. water boils at 81.0 c atop Mount Kilimanjaro. Explain what is the normal atmospheric pressure on the mountain
Draw the structure(s) of the epoxide(s) you would obtain by formation of a bromohydrin from cis-3-heptene, followed by treatment with base
a mixture of caco3 and cao weighing 0.665 g was heated to produce gaseous co2. after heating the remaining solid
How many milliliters of a stock solution of 5.60 M HNO3 would you have to use to prepare 0.160 L of 0.510 M HNO3; if you dilute 18.0 mL of the stock solution to a final volume of 0.330 L, what will be the concentration of the diluted solution
Write a chemical equation for Ca(OH)_2 (aq) showing how it is an acid or a base according to the Arrhenius definition.
If 2.50 g CuSO4 are dissolved in 8.0 x 10^2 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)4^2+, and NH3 at equilibrium
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