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Question- A physician has ordered 1.9g of tetracycline to be given every 6h to a patient. If your stock on hand is 500- mg tablets, how many will you need for 1 day's treatment? Please help me step by step thank you.
The unit cell for tin has tetragonal symmetry, with a and b lattice parameters of 0.583 and 0.318 nm, respectively. If its density, atomic weight, and atomic radius are 7.30 g/cm3, 118.69 g/mol, and 0.151 nm, respectively, compute the atomic packi..
Given that vinegar is 5% acetic acid by weight, estimate the percentage of vinegar in the foods. Assume that vinegar is 1.05 g/ml.
1. nitrogen and oxygen gases react to form dinitrogen trioxide gas.nbsp2 n2g 3 o2g 2 n2o3gat a certain temperature and
The density of an unknown element in the gaseous state is 1.60 g/L at300 K and 1 atm. Which of the following could be the element
Quartz, which contains one silicon atom and two oxygen atoms per formula unit, is the second-most-common mineral on Earth after feldspar
Problem- At what potential should a solution containing 1 M CuSO4, 1 M NiSO4, and 1 M H2SO4 be electrolyzed so as to deposit essentially all of the copper and none of the nickel
A lead-acid battery uses a redox reaction in which lead(0) and lead(IV) are both converted to lead(II). This reaction is facilitated by the presence of sulfuric acid, H2SO4, as shown by the reaction Pb + PbO2 + 2H2SO4 ---> 2PbSO4 + 2H2O
Write the equilibrium expression, and calculate the equilibrium constant for this reaction at this temperature.
Zinc metal is added to hydrochloric acid to generate hydrogen gas as well as is collected over a liquid whose vapor pressure is the same as pure water at 20.0 C (18 torr). The volume of the mixture is 1.7 L and its total pressure is 0.810atm. Find..
Make a rough sketch showing how the following properties of a baseball depend on time, from the moment it is hit high into left field to the time it is caught by the outfielder. You may neglect the effects of friction!
Explain which compound will have the larger Rf value on a SiO2 TLC plate using 10% ethyl acetate/hexane as eluent 3-decanone or 3-decanol, toluene or benzoic acid as well as cyclooctane or cyclooctanone. Why
Problem- Calculate the PH of the buffer that results from mixing 60.0ml of 0.250M HCHO2 and 15ml of 0.500M NACHO2
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