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What is the silver ion concentration in a solution prepared by mixing 339 mL of 0.398 M silver nitrate with 405 mL of 0.591 M sodium chromate? The Ksp of silver chromate is 1.2 × 10-12
A nucleus of mass 238 u, initially at rest, emits an ? particle with a KE of 5.1MeV. What is the ke of the recoiling daughter nucleus
A polyamide was prepared by bulk polymerization of hexamethylene diamine (9.22 g) with adipic acid (11.68 g) at 280 degrees C. Analysis of the whole reaction product showed that it contained 2.6 x 1
The solubility of cerium sulfate, Ce2(SO4)3, in water is 0.34 g per 100 mL at 100 °C and 14.2 g per 100 mL at 10 °C. Is the dissolving of cerium sulfate in water an endothermic or exothermic
a capacitor is charged up to 6V , then disconnected from the power supply and connected in series with a 0.2mh inductor, determine the numerical value of the capacitance
The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g=9.8 ~\rm m/s^2). If an object's mass is m=10.~\rm kg, what is its weight
The isotope Po (A-218 Z-84) can decay by either alpha or beta emission. What is the energy release in each case
If a photon has a wavelength of 412.2 nm, what is its energy in J, frequency in s^-1, wavenumber in cm-1, and linear momentum in kg m/s
a coil has an inductance of l=0.65mh and resistance of r=0.75 ohms . it is connected to the terminals of a battery with a emf of 1.5V, find the final steady-state or equilibrium current
A properly motivated kangaroo can jump over an object. what is the velocity of the kangaroo, just when it returns to the ground
For a reaction of the form, A + B + C Products, the following observations are made: doubling the concentration of A increases the rate by a factor of 4, doubling the concentration of B has no effec
You have a 1200W microwave. When you put a cup of water in for 8 minutes only half evaporates. How eficient is your microwave
Given the following reaction. (Equation not balanced.) ZnS + O2 ? ZnO + SO2 How many grams of SO2 can be made from the reaction of 18.5 grams of O2 with excess ZnS
The Gravitron is an amusement park ride in which riders stand against the inner wall of a large spinning steel cylinder. What is the maximum rotational speed at which the riders will not slide up the
A 99 kg girl dives off a raft 2.25 square meters floating in a freshwater lake. By how much does the raft rise in cm
A solution is prepared by dissolving 11.60g of a mixture of sodium carbonate and sodium bicarbonate in 1.00 L of water. A 300.0-cm^3 sample of the solution is then treated with excess HNO3 and boile
What is the rms speed of nitrogen molecules at a temperature of 55 oC? The mass of a nitrogen molecule is 4.680×10-26 kg
An electron and a positron, each moving at 3.0 x 10^5m/s, collide head on, disappear, Determine the energy and momentum of each photon
A solution contains 10.90g of unknown compound dissolved in 50.0mL of water. (Assume a density of 1.00 g/mL for water.) The freezing point of the solution is -6.53C. What is the molecular formula of
An unknown material has a normal melting/freezing point of -26.3° C, and the liquid phase has a specific heat capacity of 160 J/(kg · C°). What is the latent heat of fusion of the unkn
Calculate the number of grams of sulfuric acid in 1 gallon of battery acid if the solution has a density of 1.33g/mL and is 38.9\% sulfuric acid by mass.
A 1.5-H inductor is connected in series with a 200-? resistor through a 15-V dc power supply and a switch. what is the maximum energy stored in the inductor
An unknown compound containing only carbon and hydrogen was burned in excess oxygen. When 8.937 grams of the compound was burned, 28.042 grams of carbon dioxide and 11.482 grams of water were produc
A plane move through the air. This results in the air under thewing moving at speed v=50 m/s. what is the lift exerted on the plane in Newtons
The solid and toluene together weigh 58.82g . The density of toluene at the temperature of the experiment is 0.864 g/mL. What is the density of the solid