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Cadmium ion in solution is analyzed by precipitation as the sulfide, a yellow compound used as a pigment in everything from artists' oil paints to glass and rubber. Calculate the molar solubility of
Carbon dioxide at 223°C and 45 atm flows into the reactor at a rate of 600. L/min. What mass of urea is produced per minute by this reaction assuming 100% yield? Find _____g/min
The balanced equation for a reaction in the process of the reduction of iron ore to the metal is shown below. Fe2O3(s) + 3 CO(g) 2 Fe(s) + 3 CO2(g) (a) What is the maximum mass of iron, in grams, that
What mass of this substance must evaporate in order to freeze 250 of water initially at 19? (The heat of fusion of water is 334 the specific heat of water is 4.18 .)
When 284.5 g of ethylene (C2H4) burns in oxygen to give carbon dioxide and water, how many grams of CO2 are formed?
What is the molar concentration of a H3PO3 solution if 150.00 mL of the solution was required to neutralize 75.00 mL of NaOH whose concentration was 1.50 molar?
To what volume will the gases expand against a constant pressure of 640. torr if all the energy of combustion is converted into work to push back the piston?
The solubility of O2 (g), in water at 25°C is 3.16 mL/100 g H2O when the gas pressure is maintained at 1 atm. What pressure of O2 (g) would be required to produce a saturated solution containing
A mechanism for the decomposition of ozone. What is the molecularity for the first and second elementary reactions?
Consider the titration of 100.0 mL of 0.100 M H2NNH2 (Kb = 3.0 multiplied by 10-6) by 0.200 M HNO3. Calculate the pH of the resulting solution after the following volumes of HNO3 have been added.
At 2000°C the equilibrium constant for the reaction is Kc = 2.4 x 10^3. If the initial concentration of NO is 0.100 M, what are the equilibrium concentrations of NO, N2, and O2?
The reactant concentration in a zero-order reaction was 7.00×10-2 M after 155 s and 1.50×10-2 M after 370 s. What is the rate constant for this reaction?
A graduated cylinder contains 155 mL of water. A 15.0 g piece of iron (density = 7.86 ) and a 20.0 g piece of lead are added. What is the new water level in the cylinder?
A metal sample weighing 45.0 grams and at a temperature of 99.1 degrees Celsius was placed in 38.6 grams of water in a calorimeter at 25.0 degrees Celsius. The calorimeter reached a maximum temperat
How is the solubility of manganese(II) sulfide affected by the addition of aqueous potassium hydroxide to the system?
Calculate the molarity and mole fraction of acetone in a 1.82 molality solution of acetone in ethanol. Density of acetone is .788 g/cm^3.
Imagine that you have two iron blocks, one with a mass 226 g at a temperature of 46.0 oC, and another with a mass 380 g at a temperature of 134 oC.
compressed gas cylinder contains 1.00 x 103 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18oC. How much gas remains in the cylinder if the pressure is decreased t
For the reaction 2A + B --> 2C, if B is initially 4.0M and 2min later is 3.0M, what is the rate of appearance of C?
The mass ratio of sodium to fluorine in sodium fluoride is 1.21:1. A sample of sodium fluoride produced 36.5 {rm g} of sodium upon decomposition. How much fluorine (in grams) was formed?
A particular equilibrium mixture at that temperature contains gaseous HI at a partial pressure of 0.500 atm and hydrogen gas at a partial pressure of 0.200 atm. What is the partial pressure of I2?
AlBr3 is sold as a solution in CH2Br2. This is a rather exotic solvent and somewhat difficult to work with as well, because of its relatively high boiling point. CH2Cl2 is much more convenient to us