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A 12 oz can of Coke contains 46 mg of caffeine. One fluid ounce is equivalent to 29.57 mL (1 oz = 29.57 mL). What is the concentration of caffeine in Coke, in units of mg/mL?
Molarity is only one of many ways to express concentration. Another is percent mass per volume or %(m/v). For example, vinegar usually contains about 5 %(m/v) acetic acid(5g acetic acid/100 mL vinegar)
What is the vapor pressure of isopropanol at 200 C if its molar volume calculated by a first order virial expression
Oxygen makes up 46.7 % by mass of the Earth's crust. How many grams of oxygen are present if a sample of the Earth's crust has a mass of 335 g
The compound lead acetate is a strong electrolyte. Write the reaction when lead acetate is put into water: Make sure to include positive or negative and whether or not each one is (s) (l) or (aq)
What volume is need to give 2L/min flow for 19200min with a tank pressure of 2500psi? Assuming Ideal behavior.
you are taking a walk when a bid mean dog growls and begins to chase you. The increased epinephrine will increase? a glycolysis in the liver b glycolysis in the muscle
Which statement is true concerning the reaction... N(g) + N(g) = N2(g) + energy?
If the water in a well has 1000.0 mg/L of CaCO3 dissolved in it, How many grams of Na2C2O4 could you mix with 100.0 mL of that water before a precipitate would form
As2O3(s) + NO3-(aq) --> H3AsO4(aq) + N2O3(aq) (acidic solution) what is the oxidizing and reducing agent?
what is the energy of an X ray with a wavelength of 3.52×10-9m and a microwave with a wavelenght of 6.63×10-2m?
What is the heat energy change for this in kcal. Specific heat of h2o 1.00cal/gC. How many mols of cacl2 is this. How much heat energy per mol. answer in kilocalories
A large number of polycyclic benzenoid aromatic hydrocarbons are known. One of these, benz/a/pyrene, is a powerful carcinogen found in tobacco smoke. Draw the structure of this hydrocarbon. Can you suggest other sources where this material might b..
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