Calculate the molality of the solute
If 14.40 grams of KCl are dissolved in water to make a solution of0.154 L, the density is found to be 1.069 g/cm3.Calculate the molality of the solute.
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An 80-cm-long, 1.0-mm-diameter steel guitar string must be tightened to a tension of 2000 N by turning the tuning screws. By how much is the string stretched?
Calculate the energy needed to raise the temperature of a850 g block of aluminum from 22.8oC to94.6oC. Calculate the molar heat capacity of aluminum.
A power cycle receives heat from the storage unit, generates electricity at the rate of 570 kW and discharges heat to the atmosphere (20°C). For operation at steady state, calculate the theoretical minimum solar collector area required.
Cloverleaf exits are approximately circular. A 1712 kg automobile is traveling 70 mph while taking a cloverleaf exit that has a radius of 46.4 m. Calculate the centripetal acceleration of the car and the centripetal force on the car. Remember that
A solution is prepared by dissolving 10.00 grams of a monobasic salt in a total volume of 1.0 liters. the ph of this solution was measured at 13.07 and a conductivity experiment determined that this salt was completely ionized in solution.
Explain why optimization of the measure may not correspond to optimization of the system purpose. Describe via an example how one can improve a measure--aligned with the system purpose--yet undermine the purpose.
The NIST online database to get the enthalpy and density of water for the given conditions. Determine the mass flow rate of the water in kg/min and the diameter of the pipeline.
If 30.15 mL of 0.0995 M NaOH is required to neutralize 0.216gof an unknown acid, HA, what is the molecular weight of the unknown acid?
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