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The daily dose of ampicillin for the treatment of an ear infection is 115mg/kg of body weight. What is the daily dose for a33-lb child?
if the internal energy of a thermodynamic system is increased by 300. j while 75 j of expansion work is done how much
a a 10.0 g sample of a mixture of methane ch4 and ethane c2h4 reacts with oxygen at 25c and 1 atm to produce carbon
A 150.0 mL sample of a 1.50 M solution of CuSO4 is mixed with a 150.0 mL sample of 3.00 M KOH in a coffee cup calorimeter. The temperature of both solutions and the calorimeter was 25.2°C before mixing and 31.3°C after mixing.
how would you distinguish between methyl benzoate and phenylacetic acid using 1h nmr
Before the reaction, the volume of hte system was 6.60L. After the reaction, the volume of the system was 2.00L. Calculate the total internal energy change, Delta U, in kilojoules
What will the percentage of mercury (I) ions remaining in solution be?
Explain what is the equilibrium concentration of chloride ion (Cl-) in a saturated solution of silver chloride to which silver nitrate (AgNO3) is added until [Ag+] = 0.0001 M? Ksp for AgCl is 3.0X10-10
Calculate the pH of a 500.0 mL solution containing 0.75 M HC3H5O3 (Ka = 1.4 x 10-4) and 0.25 M NaC3H5O3.
Write out the equations, complete with state symbols and charges, for the 1st, 2nd, 3rd, and 4th ionization energies of calcium. Which of these ionization energies would you expect to be the largest
Calculate the pH for each of the following points in the titration of 50.0 mL of a 1.5 M H3PO3(aq) with 1.5 M KOH(aq)
Question- What volume of 0.200 M Na2Co3 (aq) solution contains 53.0 g of Na2Co3 Could you show the steps and equation
The elements of Si, Ga, As, Ge, Al, Cd, S and Se are all used in the manufacture of various semiconductor devices. Write expected electron configurations for these atoms.
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