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Vitamin C contains 40.92% C, 4.58% H, and 54.5% O by mass. What is the empirical formula of Vitamin C?
What is the de Broglie wavelength in cm, of a 12.9 g hummingbird flying at 1.14 102 mph? (1 mile = 1.61 km.)
From the stoichiometry, it's shown that the sodium ethoxide is used in excess. What happens to this excess during work out. (Be specific, write out the reaction that occurs and figure out at what point is it destroyed)
Suppose you weigh out .556g of KHP and dissolve it in water. It requires 14.48 mL of NaOH to reach the endpoint. What is the concentration of the NaOH solution
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.
The temperature is 2200 oC inside the lightning bolt, the bolt lasts long enough for all three species to reach equilibrium at that temperature, and the pressure of NO is 0.001 atm at equilibrium. Calculate the standard free energy change ΔGo for ..
An aqueous solution is 5.50 % by mass ammonia, NH3, and has a density of 0.975 g/mL. What is the mole fraction of ammonia in the solution?
How much energy in kilojoules is required to convert 260 mL of water at its boiling point from liquid to vapor?
Write a balanced molecular equation for the thermal decomposition of potassium perchlorate. What is the % of KClO4 in the sample being heated
A solution is prepared from 0.95 grams of H3PO4 ,(Phosphoric acid) and 1.15 grams of HClO4 (perchloric acid) in 150 mili litres of solution then determine how many milliliters of 0.425 M sodium hydroxide( NaOH) is needed.
What type of chemical reactions is used to liberate energy from the fuel in the form of heat? What are the products of the reactions? Write a representative reaction equation.
at 30oc the decomposition of hydrogen iodide into hydrogen and iodine is a second-order reaction. the rate constant for
Detailed calculations show that the value of Z eff for the outermost electrons in Na and K atoms is 2.51+ and 3.49+ , respectively. What value do you estimate for Zeff experienced by the outermost electron in both Na and K by assuming core electro..
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