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How is the solubility of manganese(II) sulfide affected by the addition of aqueous potassium hydroxide to the system?
How does temperature affect the separation of strands in G+C content@71% verus G+C content of 45%. which will require a higher temperture.
How much heat (in ) is evolved in converting 1.00 of steam at 155.0 to ice at -55.0? The heat capacity of steam is 2.01 and of ice is 2.09 .
The smallest sample of carbon atoms that can be observed with the naked eye has a mass of approximately 2 x 10-8 g. Given that 1 g = 6.02 x 1023 amu, and that carbon has an atomic weight of 12.01 am
If the Kc for the reaction is 2.50, what are the equilirium concentrations of the products if the reactiion mixture was initially 0.500M SO2, 0.500M NO2, 0.00500M SO3, and 0.00500 M NO?
5.00 mL of water sample was titrated for hardness with 4.15mL of 0.0200M EDTA. write the equation for the reaction and calcualte the hardness of the water in ppm.
If 23 g of C6H12O6 is fermented, what volume of gaseous CO2 will be produced at a temperature of 29°C and a pressure of 775 mm Hg?
The Kp for the reaction is 4.3X10^-4 at 648K. Determine the equilibrium partial pressure of NH3 in a reaction vessel that initially contained 0.900atm N2 and 0.500 atm H2 at 648K.
Calculate the percent yield for an experiment in which 5.50 g of SOCl2 was obtained in a reaction of 5.80 g of SO2 with excess PCl5
Determine the amount of heat (in kJ) given off when 1.89 104 g of ammonia are produced according to the following equation. Assume that the reaction takes place under standard-state conditions at 25
6.3 mL aliquot of 0.0529 M H2SO4 (aq) is to be titrated with 0.0411 M NaOH (aq). What volume (mL) of NaOH will it take to reach the equivalence point?
what is main type of inter molecular force for each molecule, and whats the Intermolecular forces in order from strongest to weakest.
How many liters of O2 gas, measured at 779 mm Hg and 30 C, are required to completely react with 2.5 mol of Al?
Mixtures of helium and oxygen are used in scuba diving tanks to help prevent the bends, which is a condition caused by nitrogen bubbles forming in the bloodstream. If 95 L of oxygen and 25 L of hel
If 3.8 moles of zinc metal react with 6.5 moles of silver nitrate, how many moles of silver metal can be formed, and how many moles of the excess reactant will be left over when the reaction is comp
Metallic copper is formed when aluminum reacts with copper(II) sulfate. How many grams of metallic copper can be obtained when 54.0 g of Al react with 319 g of CuSO4?
If the aluminum block is initially at 25 C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the vaporization of the alcohol comes o
A 25- sample of an alloy at 98 is placed in 50. water at 19.If the final temperature reached by the alloy sample and water is 27, what is the specific heat () of the alloy?
During a strenous workout, an athlete generates 1890.0 kj of heat energy. What mass of water would have to evaporate from the athlete's skin to dissipate this much heat?
Iron has a reported average atomic mass of 55.85 amu. If iron has two isotopes, one of which has 29 neutrons and an isotopic abundance of 57.50%, find out what is the mass of the other isotope?
The solution was poured into a 250-mL volumetric flask and diluted to the mark with DI water. Before coming to lab, calculate the concentration of ASA in the flask.
he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn? Natural gas produces 49.3 of heat per gram. (For the sake of simplicity, ass
Draw the structures of two stereoisomeric alkenes that would give 3-hexanol as the only major product of hydroboration followed by treatment with alkaline H2O2:
How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
Three gases (8.00 of methane, , 18.0 of ethane, , and an unknown amount of propane, ) were added to the same 10.0- container. At 23.0 , the total pressure in the container is 3.60. Calculate the pa