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Penicillin is an important antibiotic isolated from a type of mold. If you have 0.0588 g Penicillin, C14H20N2SO4MW = 31239 g/mol , answer the following questions.
B. What is the number of moles of nitrogen that are present?
C. What is the mass percent of sulfur in the compound?
D. What would be the concentration if you dissolved all the penicillin in 600 mL water?
The heat of vaporization of liquid water is 40.67 kJ/mol, and the molar heat capacity is 75.3 J/ (K x mol) for the liquid and 33.6 J/ (K x mol) for the vapor.
The lattice points in zinc chloride are occupied by molecules while the lattice points in zinc metal are occupied by atoms.
A sample of solid having a density of 3.43 g/cm3 had an apparent mass of 13.9264. The density of the balance weights is 8.00 g/cm3. Calculate the true mass of the object.
what is the pOH of a solution prepared by adding 2.88 g of sodium nitrite, NaNo2, to 135mL of water? ka of HNO2 is 4.5x10^-4.
What are the masses in kg of solution A and solution B required, to make 100 kg of a mixture containing 25% ethyl alcohol by mass
NaNO3(s) + NaNH2(s) yields NaN3(s) + NaOH(s) + NH3(g) What mass of NANO3 and NANH2 must be used to prepare 15.0 g of sodium azide, assuming that the reaction runs with an 82.1% yield
if 10.7 ml of a 0110 m naoh is required to reach the first equivalence point of a solution of citric acid how many ml
diethyl ether is a volatile organic compound. the vapor pressur of diethyl ether is 401 mmhg at 18 degrees c and th hat
what is the chemical formula of a homonuclear diatomic gas if it has a pressure of 1.40 atm and a density of 1.82 gl at
based on molecular structure arrange the following sets of oxyacids in order of increasing acid strength.hclo3 hio3
For a given reaction the following half-life and initial concentration data was collected. Use this data to determine the reaction's order and rate constant.
Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br- and C9H7N is quinoline
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