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Create a balanced chemical equation showing a monoprotic acid and a diprotic acid with sodium hydroxide, NaOH.
Instant cold packs, often used to ice athletic injuries on the field, contain ammonium nitrate and water separated by a thin plastic divider. When the divider is broken, the ammonium nitrate dissolves according to the following endothermic reactio..
Calcium metal has a density of 1.55g/cm3 and crystallizes in a cubic unit cell with an edge length of 558.2pm. a. how many Ca atoms are in one unit cell?
How many mL of 6.0M H2SO4 are required to react with .80g of CuO according to the equation CuO
Consider the following reaction at 298 K. 2 SO2(g) + O2(g) ? 2 SO3(g) An equilibrium mixture contains O2(g) and SO3(g) at partial pressures of 0.42 atm and 1.5 atm, respectively. Determine the equilibrium partial pressure of SO2 in the mixture.
How many moles of hydrogen are consumed when 40.0 L of hydrogen chloride gas are produced in the following equation? H2 + Cl2 ---> 2HCl
Assume that a particular reaction evolves 243 kJ of heat and that 28 kJ of PV work is gained by the system....? 1) What are the values of delta E and delta H for the system? 2) What are the values of delta E and delta H for the surroundings?
Sketch the [1-11] direction within the (110) plane relative to an fcc unit cell. Include all atom-center positions within the plane of interest.
what mass of this substance must evaporate in order to freeze 119 of water initially at 24? the heat of fusion of water
A sample of helium gas initially at 37.0 degrees C, 785 torr and 1.50L was heated to 65.0 degrees C while the volume expanded to 3.24 L. What is the final pressure in atm.
Suppose the reaction Ca3(PO4)2 + 3H2SO4 ------ > 3CaSO4 + 2H3PO4 is carried out starting with 103 g of Ca3(PO4)2 and 33.7 g of H2SO4. How much phosphoric acid (H3PO4) will be produced?
Calculate the wavelength, in nanometers, of the spectral line produced when an electron in a hydrogen atom undergoes the transition from the energy level n = 7 to the level n = 2.
a stock solution of perchloric acid is 70.5 by mass hclo4 and 29.5 by mass water. the density of the solution is 1.67
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