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A sample of unknown hydrate of FeCl3 weighs 8.693g. After heating the sample to constant mass, the remaining anhydrous salt weighs 5.216g. What is the experimental formula for the hydrate?
Write balanced net ionic equation for the reaction between hydrobromic acid and potassium hydroxide.
Three gases (8.00 rm g of methane, CH_4, 18.0 g of ethane, C_2H_6, and an unknown amount of propane, C_3H_8) were added to the same 10.0 L container.
If all of these tires were burned with complete efficiency, by how much (in tonnes) would Earth's current atmospheric load of C02 increase
Use of fossil fuels - Should we be burning the raw materials for medicine and polymers? Where will we be in 50 years on this issue?
If 155 of wet is collected over water at 24 and a barometric pressure of 738 , how many grams of have been consumed? (The vapor pressure of water is 22.38 .)
If you have .200 mL of methyl salicyate (density=1.184 g/mL)(molar mass=152.15 g/mol) how many moles do you have?
describe how sp3 hybridization occurs in each atom. a) carbon b) nitrogen c) oxygen. If these elements use sp3 hybrid orbitals to form bonds, how many lone pairs of electrons would be found on each?
The resulting W3 was transferred to 500.0 mL of 1.00 M HCl. A 100.00 mL aliquot of the HCl solution required 12.26 mL of 0.08855 M potassium permanganate (KMnO4) to reach the purple endpoint.
A gas stream that contains 1.50 mole% CO2 flows through a pipeline. 20.0 kg/min of CO2 is injected into the line. A sample of the gas is drawn from a point in the line 10 meters downstream of the injection point and found to contain 2.3 mole% CO2.
Commercial concentrated aqueous ammonia is 28% by mass and has a density of 0.90 .What is the molarity of this solution?
Determine the molarity of Ni in the 20.0 mL solution? Determine the mass in grams of Ni in the original sample? Determine the weight percent of Ni in the sample?
Determine the minimum wavelength of light necessary to overcome the work function of the following metals
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