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Given that the density of solid sodium is 0.968 g/cm^3, estimate the atomic (metallic) radius of a Na atom. Assess the value obtained, indicating why the result is only an estimate and whether the actual radius should be larger or smaller than the estimate.
Calculate the mass of methane that must be burned to provide enough heat to convert 151.0 g of water at 43.0°C into steam at 124.0°C.
Calculate the binding energy per nucleon (in MeV) for P-32 (atomic mass = 31.9739 u). mass H = 1.007825 u and mass n = 1.008665 u.
if 0.100 m NaCl is added slowly to a beaker containing both .120m AgNO3 and .150m Pb(NO3)2 at 25 celsius which will precipitate first AgCl or PbCl2?
Which of the following molecules or ions will have a lewis structure most like that of phosphorous trichlorid,
Calculate the pressure of 4 g of nitrogen gas in a 1 L container at 20.0 ?C.
How many g of NaCl are required to prepare 250.0 mL of a 0.3440 M solution of NaCl in water?
Design a tube and shell heat exchanger for the fluids and duty given for you and complete Project Management tasks
What is the concentration of P retained in the soil (in mg P/kg)? What is the concentration of PO4 retained by the soil (in mg PO4/kg)?
The final temperature of the gas, Would it be feasible to make ethanol, C2H5OH, by the following reaction ( under standard conditions and 25 degrees C)
is independent of pressure. By doing so, obtain an expression for V as a function of T and ? at fixed P.
calculate the freezing point depression for the solution b). calculate the molality of the solution
A 100g iron ball (specific heat= 0.473 J/g degrees celcius) is heated to 125 degrees celcius and placed in a calorimeter holding 200g of water at 25.0 degrees celcius. What will be the highest temperature reached by the water?
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