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I have a solution that contains 30 lbs of sugar and 2.5 gallons of water. Calculate the mass percent, molarity, molality and mole fraction.
an equilibrium mixture of o2 so2 and so3 contains equal concentration of so2 and so3. calculate the concentration of o2
In the lower troposphere, ozone is one of the components of photochemical smog. It is generated in air when nitrogen dioxide, formed by the oxidation of nitrogen monoxide from car exhaust, reacts by the following mechanism.
Lewis Structure for a Nitrate Ion (NO3-1). Assign the formal charge for the central atom, Nitrogen. What is that formal charge
construct the phase diagram for benzene near its triple point at 36 torr and 5.5 celcius using the following data
Dissolve the appropiate amount of HEPES (sodium salt) (formula weight is 260.31) in water to an approxiamte volume of 60 mL in a 150 mL beaker that is equipped with a stirring bar.
What is the maximum body accumulation of methylmercury at a constant ingestion rate of 4 mg of mercury per day?
The following pictures represent the progress of a reaction in which two A molecules combine to give a more complex molecule A2, 2A ? A2. What is the order of reaction with respect to A?
The 1H-NMR spectrum of compound A, C5H10O, consists of the following signals: ? 9.72 (triplet, 1H), 2.40 (quartet, 2H), 1.58 (quintet, 2H), 1.31
Light of wavelength 540 nm is incidenct on a slit of width 0.150, and a diffraction pattern is produced on a screen that is 2.00 from the slit. What is the width of the central bright fringe
A sample of oxygen , at 24 c occupy a vol of 4.14*10(2) milliliters(ml)at 1.53 atm pressure. What pressure must be applied to compress. the gas to a volume of 1.377*10(2) ml , with no temperature change
calculate the de broglie wavelength for each of the following.a 57 g ball with a velocity of 35. ms b an electron with
Which aqueous solution will have the highest total number of moles of ions in the solution. The answer is 100mL 3M calcium nitrate. Why is it not 100mL 4M glucose (C6H12O6), 100mL 1M aluminum fluoride, or 100 mL 2M calcium sulfide
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