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Titanium () chloride, a substance used in catalysts for preparing polyethylene, is made by high-temperature reaction of vapor with :2TiCkl4+H2 yielding 2TiCl3+2HCl. How many grams of are needed for complete reaction with 150 of at 450 and 785 pressure
arrange the elements in order of decreasing ionization energy. rank elements from largest to smallest. to rank items as
What is the de Broglie wavelength in cm, of a 12.7 g hummingbird flying at 1.15 multiplied by 102 mph? (1 mile = 1.61 km.)
Using the periodic table only, determine which members of the set have the shortest and longest bond lengths. N-H N-S N-O
A 4.50-g sample is burned, and 2.70 g of CO2(g) is produced. What was the mass percentage of the table salt in the mixture?
An analyst collects and melts 555.0 g of snow. a 100 g portion of the resulting water is made basic with ammonia, treated with cyanide and to mask other metal ions, and then extracted with 10.0 mL of a solution of dithizone in chloroform. the chlo..
Use the ksp values to calculate the molar solubility of each of the following compounds in pure water BaSO4(ksp=1.07x10^-10) PbCl2(ksp=1.17x10^-5) Ni(0H)2(ksp)5.48x10^-16
Starting with needed alkanes, alkenes and inorganic regrets, devise syntheses for the following compounds. Yout method should produce each compound in good yield and free of isomers.
Compute the amount of heat liberated when 6.07 g of n-octane is burned completely with excess oxygen to form carbon dioxide and liquid water.
If the mass of water surrounding the calorimeter was exactly 1000 g and the heat capacity of the bomb calorimeter was 1.75 kJ/°C, calculate the molar heat of combustion of liquid methanol .
Use the mean value that you determined for Keq to calculate the SCN- concentration in a solution Fe3+ concentration was 4.00 X10-2M and initial SCN- concentration was 1.00 X10-3 M. Is all of theSCN- in the form ofFeNCS2+?
What time will it take 10.0 mL of Chlorine gas to effuse through a porous barrier when it has been noticed that 76.3 min are needed for 10.0 mL of Hydrochloric acid gas to effuse through the same barrier.
calculate the mass of vapour present in a room of volume 250 meter cube that contains air at 23 degree centigrade on a day when the relative humidity is 53 per cent.
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