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A 3.575g sample of a monoprotic acid was dissolved in water. it took 22.67ml of a .1453 M NaOH solution to neutralize the acid. what is the molar mass of the acid
In a laboratory synthesis , a student begins with 5.00ml of acetic anhydride (density = 1.08 g / mL) and 2.08 of salicylic acid. Once the reaction is complete, the student collects 2.01 g of aspirin . Determine the limiting reactant , theoretical ..
Milk spoils about 5x as fast at 300 K as it does at 250 K. What is the apparent activation barrier for the "milk spoiling" reaction
What is the molar concentration of the solution of 37.5g Ba(MnO4)2 per Liter? What is molar concentration with respect for each ion, Ba2+ and MnO42-
Determine the amount of acetic acid and sodium acetate required. The Ka of acetic acid is 1.8 X 10^-5. Show the calculations for the preparation of 100 mL of an acetic acid - sodium acetate pH 5.0 buffer using .30 M acetic acid.
A ground-state H atom absorbs a photon and makes a transition to n=4 energy level. It then emits a photon of energy 4.085 x 10^-19 Joules. What is the final energy and n value of the atom?
1) What type of intermediate is formed in the polymerization of styrene with butllithium? a) radical b) carbanion
If the pressure of gaseious chloroform in a flask is 195 mm Hg at 25 degrees celsius and its density is 1.25 g/l, what is the molar mass of chloroform?
Calculate the pH and the pOH of an aqueous solution that is 0.040 M in HCl(aq) and 0.065 M in HBr(aq) at 25°C.
What is the minimum external voltage must one supply in orger to perform the electrolsis of molten CaCl_2(l)? Suggest a means for supplying this energy.
A fossil fuel containing 84% C, 15% H and 1%S is burned with 20% excess air in a boiler. The stack gases are at 150 C. a) What is the concentration (ppm) of SO3 in the stack if equilibrium is established according to
Apply the steady state approximation to determine expressions for the rate of production of methane, CH4, and of ethane, C2H6.
What is the pH of a buffer solution that is 0.255 M in hypochlorous acid (HClO) and 0.333 M in sodium hypochlorite? The Kb of hypochlorous acid is 2.63 x 10 ^-7. ( Use ICE and please show work)
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