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A product label for 348 mg tablets of quinidine gluconate (m.w. 520) states that 71 % of the drug is present as quinidine base (m.w. 324). Calculate the milligrams of quinidine present in each tablet (round to the nearest mg).
Maleic anhydride reacts with ethylene glycol to produce an alkyd resin. Draw the structure of the condensation polymer produced.
If 28.1713 g of unknown was added to 859.6 g of phenol to prepare the solution, calculate the molar mass (MM) of the unknown.
Select all of the correct statements about reaction quotients and equilibrium constants from the choices below. A reaction quotient equals the equilibrium constant at equilibrium. In a reacting mixture K is the ratio of product to reactant concent..
0.3 M NaH2PO4 calculate acidic and basic buffer capacity. How muc of strong base needed to bring buffer pH one unit up?
A solution is prepared by dissolving 0.18 moles of acetic acid and 0.18 moles of ammonium chloride in enough water to make 1.0 L of solution. Find the concentration of ammonia in the solution.
a total of 2.00mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 110g of
a 436 mL volume of hydrogen gas is collected at 25 kelvin and 725 torr. what volume will gas occupy at STP
draw structures for p-bromoaniline, 3,5 dimethylbenzoic acid, p-chlorobenzaldehyde and 1-phenyl-3-methylpentane
Give the expected ground-state electron configurations for atoms with the following atomic numbers. Z=55
A soft drink contains 35 mg. of sodium in 315g. of H2O. What is the concentration of sodium in the soft drink in mass percent?
What are the formal charges on all of the atoms in question 7. How many resonance structures are there
If the average mass of a single hydrogen atom is 1.67x10^-24g , what is the mass in grams of 6.02x10^23 hydrogen atoms
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