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For the reaction of phosphorous acid (H3PO3) and potassium hydroxide (KOH), write (a) the balanced molecular equation, (b) the ionic equation and (c) the net ionic equation.
Determine the temperature change is caused by heat energy and using a beaker that contains 100 mL of H 2 O thermally insulated from its surroundings, one mol of solid CaCl 2 is mixed and solution is stirred
What is the concentration of in mass percent? An aqueous solution has a vapor pressure of 81.9 at 50 . The vapor pressure of pure water at this temperature is 92.6.
Compute ΔHo fusion and ΔSo fusion for this substance If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K..
If 20.0 dm3 of methane, CH4, react with 200.0 dm3 of air at STP, calculate the dm3 of carbon dioxide gas produced.
Assume that the kinetic energy of a 1500 kg car moving at 150 km/h could be converted entirely into heat. What amount of water could be heated from 22C to 48C by the car's energy?
Explain which of the following solutions has the weakest interparticle attraction forces : 0.1 M I2 in CH2Cl2(l), 0.02 M NaOH(aq), 0.3 M C12H22O11
The solubility of nitrogen in water exposed to the atmosphere, where the partial pressure of nitrogen is 593 mm, is 5.3 × 10-4 M. At the same temperature, what would be the solubility of pure nitrogen, at a pressure of 760 mm?
Use condensed structures to illustrate the 3 possible charged species and the one neurtral species that can exist in aqueous environments for the polar acidic acid of your choice. Indicate which conditions are present in each of the four drawings.
Doubling the distance between an individual and the source of radiation reduces the radiation exposure to one-fourth the original value.
1.00 mole of pure NOCl and .907 mole of pure Cl2 are placed in a 1.00-L container. Calculate the equilibrium concentration of Cl2(g).
A compound of bromine and fluorine is used to make UF6, which is an important chemical in processing and reprocessing of nuclear fuel. The compound contains 58.37% by mass of bromine. Determine its empirical formula.
A compound X has molecular ion peaks in its mass spectrum at mass 140 and 142, and shows prominent peaks in its IR spectrum at 3150-3000 and 1600 cm^-1.
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