What mass of nacl is required to lower the freezing point
What mass of NaCl is required to lower the freezing point of 1.75kg of water by 2.5 C? What mass of CaCl2 would berequired to do the same?(Assume ideal Van't Hoff factors).
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A solution is prepared by dissolving 20.2 mL of methanol in 100 mL of water. The final volume of the solution is 118 mL. The densities of methanol and water are 0.782 g/mL and 1.00 g/mL, respectively.
It then sails from the second island to the third island in a direction 70.0° west of north. Finally, it returns to the first island, sailing in a direction 28.0° east of south. (a) Calculate the distance between the second and third island
Determine the temperature and the total enthalpy in the container. The container is now heated until the pressure is 600 kPa. Determine the temperature and the total enthalpy at this state.
A stretched string is fixed at both ends which are 410 cm apart. If the density of the string is 0.035 g/cm, and its tension is 600 N, what is the wave length of the 6th harmonic? Answer in units of cm.
Determined the rate of energy transfers by mass into and out of the compressor. Assume the Kenetic and potencial energies to be negligible.
Assume that the tennis ball will hit the ground below the cliff. Determine the equation for the height of the ball after t seconds.
Weights of certain monkeys are distributed with a mean of 44.1 pounds and a standard deviation of 3.9 pounds. What is the probability that a randomly selected monkey will:
The electric field in an xy plane produced by a positively charged particle is 9.64(6.6 + 6.3) N/C at the point (3.9, 5.8) cm and 111 N/C at the point (5.3, 0) cm. What are (in cm) the (a)x and (b)y coordinates of the particle? (c) What is the cha
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