How many molecules of water are present in the drop
A drop of water has a volume of .05 mL. If the density of water is 1.0g/mL, how many molecules of water are present in the drop? The gram molecular weight is 18.016.
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A solution of 0.2532 g of sulfamic acid and 100ml H2Oand a solution of 0.30g sodium nitrate acid in 50ml H2Owere used to produce nitrogen gas. 10ml of the sulfamic acid solution was mixed with 5ml of the sodium nitrate.
What is the rate at which new cooking oil must be added to the vat so that there is always the same mass of oil in the vat at all times?
A 51.6-g golf ball is driven from the tee with an initial speed of 43.9 m/s and rises to a height of 25.4 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 7.37 m belo
A projectile of mass 0.879 kg is shot straight up with an initial speed of 27.4 m/s. (a) How high would it go if there were no air resistance? (b) If the projectile rises to a maximum height of only 7.85 m, determine the magnitude of the average f
A spring with k = 51 N/m hangs vertically next to a ruler. The end of the spring is next to the 15 cm mark on the ruler. If a 2.9 kg mass is now attached to the end of the spring, where will the end of the spring line up with the ruler marks?
Consider the reaction: CO2(g) + H2(g) -> CO(g) + H2O(g), for which Kc= 0.64 at 900K. If the initialconcentrations of CO2 and H2 are each 0.100 M, what will be the equilibrium concentrations of each species after the reaction reaches e
What is the mass flow rate of seasonings that exit the tumbler unattached to the potato chips (and must be recycled)?
A crane lifts a ball weighing 2 x 10^4 N by 40 m in 2 seconds. A) How much work against the force of gravity does the crane do on the ball?
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