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Your patient is perscribed 10 ml of a 5 mg/ml solution of penicillin. They will need to take this 2 times per day for 5 days. How would you make this solution? How many milligrams of penicillin will you need? How many milliliters of water?
Explain what will happen in order for equilibrium to be established. Define both mathematically AND in words based on LeChatelier's Principle what you predict will happen
Nitrogen dioxide (NO2) is the only important gaseous species in the lower atmosphere that absorbs visible light. Write the Lewis structure(s) for NO2.
If 40.0 g of Cu is placed into 100.0 g of H20 at a temperature of 20.0*C and if the temperature of the water rises to 23.0*C, what was the temperature of the Cu
If 0.260 moles of a monoprotic weak acid (Ka=9.0*10^-5) is titrated with NaOH, what is the pH of the solution at the half-equivalence point
I am actually encompassing problems in understanding stoichiometry. I 'm a bit baffled on how to solve problems such as, finding the number of moles as well as other related problems. Explain what I really need is a guide/keys or even sample probl..
a man has sickle cell anemia, and an examination of his blood shows that a point mutation has caused the
A chemist produces 460 mL of oxygen gas at - 43 °C and constant pressure. To what Celsius temperature must the oxygen be warmed in order for it to have a volume of 600 mL?
A small immersion heater is used to heat 475 mL of water from 75 degrees Fahrenheit to 195 degrees fahrenheit in 5.00 minutes.
1) How many moles of oxygen atoms are present in a sample that contains 3.86 moles of dioxygen difluoride O2F2? The answer I got from this was: 7.72 moles of O2 atoms?
How many moles of sodium chloride are present in the original solution. How many moles of ammonia are present originally
A 1-ft-diameter cylinder is closed on one end and fitted with a moveable piston on the other. With 1 atm applied pressure, the piston is located 20 ft from the closed end
Calculate G at 27°C for the following reaction when the partial pressure of water is 0.76 atm given that the ?G° is 8.38 kJ. H2O(l) ? H2O(g)
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