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The physician has ordered 1.00 g of tetracycline to be given every 6 hours to a patient. If your stock on hand is 500 mg tablets, how many will you need for 1 day's treatment?
Use the Henderson Hasselbalch Equation to calculate the pH after the addition of 0.10 M NaOH to this solution, assuming no change in volume?
For the following reaction, KOH(s)+SO2(g)=KHSO3(s), if 0.5 g of each reactant were allowed to react with each other... which of the following answer choices apply to finishing the above question 1. more than one gram of product would result
what effect will that have on the delta T values when the initial value is measured with the thermometer and the latter is measured with the temperature probe? How will this affect the calculated change in heat of that substance?
Write a formula for the conjugate base formed when each of the following behaves as a bronzed acid.
Liquid pentane (C5H12) has a density of 0.6262 g/mL at 20°C. Find the true mass (mtrue) of pentane when the mass weighed in air is 12.580 g. Assume the air density is 0.0012 g/mL and the balance weight density is 8.4 g/mL.
When 34.1 g of lead reacts with 6.81 L of oxygen gas, measured at 1 atm and 25.0 degree C, 36.1 kJ of heat is released at consstant pressure. What is DeltaH for this reaction
A galvanic cell is produced as follows: Left half-cell has a Pt wire dipping into a beaker containing an equimolar mixture of Cr+2 and Cr+3 . [Cr3+ + e-??Cr+2 E°-= -0.42 V] Right hand cell has a Tl rod immersed in 1.00 M TlClO4.
How many moles of cobalt (Co) atoms are there in 5.00 x 10^9 (5.00 billion) Co atoms? Enter your answer in scientific notation.
A 100.0-mL aqueous sodium chloride solution is 14.5% NaCl by mass and has a density of 1.12 g/mL. What mass of solute would you add to make the boiling point of the solution 104.2 degree C? (Use i = 1.8 for NaCl)
When a certain unknown hydrocarbon is completely combusted with excess oxygen, it is observed that 1.12 L of H2O gas and 3.36 L of CO2 are produced at STP. What is the empirical formula of the unknown hydrocarbon
a solution of 0.312 m koh is used to titrate 15.0 ml of a h2so4 solution. write the balanced chemical equation. what is
A 2.30 L sample of O2(g) was collected over a liquid at a total pressure of 785 torr and 25°C. When the O2(g) was dried (vapor of that liquid removed), the gas had a volume of 1.86 L at 25°C and 785 torr.
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