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On a smoggy day in a certain city the ozone concentration was0.50 ppm by volume. Calculate the partial pressure of ozone and the number of ozone molecules per liter ofair if the temperature and pressure were 20.0°C and738 mmHg, respectively.
How many moles (mol) are in 6.3 ml of a 0.25 M solution of NaOH. your answer must include units
what is the formula for the ionic compounds formed by magnesium ions and calcium ions with nitrate ions?
The nature of the intermediates in E1 and Sn1 reactions are carbocations. If the molecule doesn't follow that formula then it has either double bonds or rings or both.
Find the volume of a molar solution and What volume of a 2.00 molar solution of sulfuric acid, H 2 SO 4 , is required to react with 250.0g of magnesium carbonate, MgCO 3 , according to the following equation?
If, at constant pressure, the absolute temperature of a flask equipped with a moveable piston is reduced to half its original absolute temperature, what must be the new volume? A) 1/4 the original volume B) 1/2 the original volume
Consider a voltaic cell at 25o C consisting of a Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell ([Pb2+] and [Mn2+] are 1.0 M). If you want to convert this voltaic cell into an electrolytic cell, how many volts must you supply
Calculate the pH at the equivalence point in titrating 0.010 M solutions of each of the following with 0.081 M NaOH. (a) hydrochloric acid (HCl) pH = _?_ It's not 12.55
Use metric conversion factors to solve the following problem. A park has an area of 150000 m^2. What is the area in km^2?
Aluminum reacts with oxygen to yield aluminum oxide. If 5.0g of AL reacts with 4.45g of oxygen what is the empirical formula of aluminum oxide
when 1 of a fuel is burned at constant pressure it produces 3450 of heat and does does 11 ofwork.what is the value of
Determine the [H+] and the pH of a buffer containing 0.20 M acetic acid and 0.10 M sodium acetate. 2. Calculate the percent dissociation of acetic acid in this solution
Calculate the wavelength of the photon emitted when the hydrogen atom undergoes a transition from n = 5 to n = 3. (R = 2.179 x 10-18 J R = 1.096776 x 10^7 m-1)
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