What mass of nacl must be dissolved in 650 grams of water
What mass of NaCl must be dissolved in 65.0 grams of water to lower the freezing point by 7.50 °C? The freezing point depression constant, Kfp, for water is -1.86 °C/m
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A car of mass 1203 kg collides head-on with a parked truck of mass 2000 kg. Spring mounted bumpers ensure that the collision is essentially elastic. what is the initial speed of the car
An organic substance has an enthalpy of vaporization of 29.0 kJ/mol. The compound has a vapor pressure of 524 mm Hg at 25 °C. At what temperature is the vapor pressure equal to 115 mm Hg?
A screen is placed 1.20m behind a single slit. The central maximum in the resulting diffraction pattern on the screen is 1.40cm wide-that is, find the distance between the two second-order minima
The specific heat capacity of silver is 0.235 J/g K. Its melting point is 962 C and its enthalpy of fusion is 11.3 kJ/mol. What quantity of heat in joules is required to change 5.00 g of silver from a solid at 25 C to a liquid at 962 C?
A 1200 kg car pushes a 2200 kg truck that has a dead battery . When the driver stes on he accelerator, What is the magnitude of the force of the car on the truck
Consider the design of a sine-wave generator. List the operational parameters that should be considered in this design project
A person's right eye can see objects clearly only if they are between 27cm and 86cm away. What will be the near point with the lens in place
In a separate experiment, it was found that, for fixed temperature and pressure, a 0.100 L sample of this compound takes 1.73 times longer to effuse than does a 0.100 L sample of Ar(g). What is the molecular formula of the compound? Draw possible
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