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How many molecules of carbon dioxide are produced when 149 molecules of acetylene (HCCH) to react in excess oxygen produce carbon dioxide and water?
Use IR tables to locate absorption bands of the stretching frequencies of the alkyne C
Assume the radius of a neutron to be approximately 1.0; times ;10^{ - 13} {rm cm}, and calculate the density of a neutron.
the products formed are sodium bromide and hydrogen sulphite. Calculate the mass of sodium bromide produced.
What would be the value of the change in concentration of C10H12/change in time during the same period of time? Explain why a catalyst for a forward reaction must also be a catalyst for the reverse reaction. Include an energy level diagram
Important information about AP Chemistry a. S(2)O(3)^2- (aq)+I(3)^- (aq) ->S(4)O(6)^2- (aq) + I^- (aq) b. Mn^2+(aq) + HBiO(3) (s) ->MnO(4)^- (aq) + Bio^+ (aq) (acid)
Coal combustion can affect freshwater or marine (saltwater) organisms in different ways. Describe the steps involved in one such way, from combustion to the effect(s) on one species or group of organisms.
CO(g)+2H2(g)->CH3OH(g) How many moles of each reactant are needed to produce 3.60 X 10^2g of CH3OH?
Find ratio of the atomic mass of Silicon to Hydrogen if every 100g of SiH4 contains 87.45g of Si and 12.55g of H.
How many grams of iron metal do you expect to be produced when 265 grams of an 84.5 percent by mass iron (II) nitrate solution reacts with excess aluminum metal?
What is the expected freezing point of an aqueous solution of 2.62 kg of nitric acid, HNO3 , in a solution with a total mass of 5.91 kg? Assume that the nitric acid is completely ionized.
Hydronium ion concentration using Henderson-Hasselbalch equation - What is the hydronium ion concentration of a solution
A calorimeter contains 125 g of water at 26.1°C. A block of metal with a mass of 25 g is heated to 96.5°C and then placed in the water in the calorimeter.
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