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0.118 kg block is suspended from a spring. When a small pebble of mass 30 g is placed on the block, the spring stretches an additional 5.1 cm. With the pebble on the block, the block oscillates with an amplitude of 12cm. Find the maximum amplitude of the oscillation at which the pebble will remain in contact with the block.
In the presence of a tungsten catalyst at high temperatures, the decomposition of ammonia to nitrogen and hydrogen is a zero order process. If the rate constant at a particular temperature is 3.7*10^-6 mol/L*sec
what is the boiling-point change for a solution containing 0.360 mol of naphthalene (a nonvolatile, nonionizing compound) in 256.0 g of liquid benzene? (Kb=2.53 celsius/m for benzene).
A sample of gas is heated. During the heating process, the volume of the gas increases 1.7 times. If the initial temperature of the gas is 80degrees C. what is the final temperature of the gas?
when substitutionally incorporated into 1 kg of silicon will establish a charge carrier density of 3.091times1017
Liquid-in-glass thermometer are of two types:mercury in glass and alcohol plus red dye in glass. the dependence of volume on temperature of mercury and alcohol.
A solution containing 100 g of an unknown liquid and 900 g water has a freezing point of - 3.33 oC. What is the molar mass of the liquid? Kf = 1.86oC/m
what is the boiling point of the solution in which you are going to cook spaghetti if it contains 58.0 g of nacl
What would be the effect of performing your kinetics experiments at a lower temperature than the one you used?
Calculate the standard free-energy change for the following reaction at 25 °C 2Au+3Ni---->3Au+3Ni2+
A 0.150- M solution of chloroacetic acid (HC2H2ClO2) has a pH of 1.86. What is the value of Ka for this acid and the percent ionization?
consider the following equilibrium at 1000k2so2 g o2 g harr 2so3 gnbspa study of this system reveals that there are
Assume that algae need carbon, nitrogen and phosphorus in the atomic ratio 106:16:1. What is the limiting nutrient in the lake that contains the following concentrations: total carbon = 20 mg/L, total N = 0.80 mg/L and total P = 0.16 mg/L.
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