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Write a balanced equation for the decomposition reaction described, using the smallest possible integer coefficients. Pure mercury(II) oxide decomposes to its elements.
Properties of Electrolyte Solutions, In the winter of 1994, record low temperatures were registered throughout the United States. For example, in Champaign, Illinois, a record low of -29 F was registered.
Carbonyl fluoride, COF2 is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride
Compute the mass of solute and water needed to prepare the following solutions: 1. 150 g of 1.00 m (NH4)2SO4: (a) from pure solid (NH4)2SO4 (b) from solid (NH4)2SO4 with a purity of 87.2 wt-% 2. 1.50 L of a 20 wt-% Pb(NO3)2 solution whose density ..
Calculate the mass of nitrogen dissolved at room temperature in an 94.0 home aquarium. Assume a total pressure of 1.0 and a mole fraction for nitrogen of 0.78.
Many organic chemists when making a new solid compound often first try ethanol as a recrystallizing solvent. If soluable at room temperature, they simply add water and this often works! Why?
How many moles of stem are produced at 2.00 atm and 202.0 celcius by the complete combustion of 12.50 L of methane gas?
The standard reaction enthalpy for the decomposition of CaCl2_NH3 into CaCl2 and NH3 is nearly constant at +78 kJ/mol between 350 K and 470 K.
A 48.0-L gas cylinder contains 249 mol of H2 gas at 298 K. What is the pressure inside the cylinder.
The molar heat of neutralization from hydrochloric acid and sodium hydroxide is -57.3 kJ/mol. use this accepted value to predict the heat evolved
How many grams of NaCl are contained in 350 ml of a 0.25 M solution of sodium chloride?
The electrode of a pH meter is placed in a sample of urine and a reading of 7.9 is obtained. Is the sample acidic basic, or neutral? What is the concentration of H3O+ in the urine sample?
The atomic weight of a newly discovered element is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu.
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