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What is the pH of an aqueous solution with a hydrogen ion concentration of [H ] = 9.4 × 10-7 M?
Electrolytes and Molarity, Iii)salt is added to 81.4 g of water? iv) Identify the electrolytes and the non-electrolytes among the following compounds
If the density of water is 1.00g/mL, what is the weight in pounds of gallon of water? you may assume that mass and weight are equivalent at the earth's surface.
Radiation with a 58.4 nm of wavelength interacts with a H 2 (hydrogen atom)and induces the ejection of an electron then determine the kinetic energy of the departing electron express your answer in eV?
A fluorinated organic gas in a cylinder is com- pressed from an initial volume of 960 mL at 158 Pa to 478 mL at the same temperature. What is the final pressure? Answer in units of Pa.
What concentration of aqueous NaCl solution freezes at -15.2ºC? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
The overall equilibrium involves Ksp, Ka3 of phosphoric acid and Kw. Construct the constant and show the three equations that apply.
Nitrogen dioxide decomposes according to the reaction 2NO2(g) 2NO(g) + O2(g) where Kp = 4.48 × 10-13 at 25°C. What is the value for Kc?
a solution is prepared by dissolving 20.0 g of NaI in enoug water tomake 300.mL of solution How many moles of ions are in 25.mL of thesolution?
Compound A, C8H10, can give 2 isomeric products upon substitution of an aromatic H by -NO2. The 1H NMR spectrum of A shows 2 two-proton doublets at 7.14 and 7.34 ?
a pencil 7.5 inches long.if there are 2.54cm in an inch,how long is this pencil in decimeters?10dm=1m
you reacted 11.5 grams of sodium sulfate and 55.0 ml of 0.500 M barium nitrate, how many grams of barium sulfate are made.
What is the molarity of a solution prepared by dissolving 10.5 grams of NaF in enough water to produce 750 mL of solution?
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