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A compound of iodine and cesium contains 62.60 g of metal and 60.90 g of nonmetal. How many grams of cesium are in 34.94 g of compound?
How many grams of iodine?
A 12.0 g sample of solic NH4Cl is heated in a 5.00 L container to a high temperature. At equilibrium, the pressure of NH3 (g) is 1.22 atm. What is the value of Kp for the reaction
Provide an expression for the relative probability of finding a population of particles in the box in the second excited state relative to the ground state at 10000K
Give a set of variables that is sufficient to specify the thermodynamic state a homogeneous pure substance
How many liters of water vapor can be produced when 15L C3H8 are reacted with 15L O2? all gases are at the same temperature and pressure.
How much heat energy is required to raise the temp. of 0.363 kg of copper from 23.0 C to 60.0 C The specific heat of copper is 0.0920 cal /(g.C).
Calculate the molarity, percent composition by weight, and mole fraction of HCL in an aqueous solution 12 M HCl that has a density of 1.20 g/mL.
Calculate the activity coefficient of glucose in this solution if the solution freezes at -0.66 C.
A solution of 75.0 of benzene and 75.0 of toluene has a total vapor pressure of 80.9 at 303 . Another solution of 100.0 benzene and 50.0 toluene has a total vapor pressure of 93.9 at this temperature.
Calculate molality and mass percent of alcohol in the mixture. A solution of ethanol, C2H5OH, in water has a concentration of 1.996 mol L-1. At 20.0 ºC its density is 0.9677 g mL-1
A sample of air contains 0.130 ug/L SO2. Given that the density of the air sample is 1.19 g/L, calculate the SO2 content in parts per million by weight.
What is the resulting pH when 0.005 moles of KOH is added to 0.100 L of a buffer solution that is 0.100 M in H2PO4 - and 0.100 M HPO4 2- and the Ka2 = 6.2 x 10^-8
What is the difference between selectivity and sensitivity as these words pertain to sensors? Why or why not would you want a very sensitive sensor?
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