Pure oxygen according to the reaction
Acetylene gas (C2H2) used in welding, produces an extremely hot ?ame when it burns in pure oxygen according to the reaction 2 C2H2(g)+5 O2(g) -→ 4 CO2(g)+2 H2O(g)
How much CO2 is produced when 20000 g of C2H2 burns completely?
Answer in units of g.
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Potassium hydrohen phthalate, KHC8H4O4, functions as monoprotic acid. If a 1.46 g sample of impure KHC8H4O4 requires 34.3 ml of 0.145 M NaOH, what percentage of KHC8H4O4 is in the material?
Determine the acid dissociation constant for a 0.10M acetic acid solution that has a ph of 2.87. Acetic acid is a weak monoprotic acid and the equilibrium equation of interest.
How can you build a Selective Gate? Using a presettable divide-by-N counter and a gating circuit that will gate the clock pulses from the clock. It should let three pulses pass and than block three.
A typical deposit of cholesterol, C27H46O, in an artery has a mass of 3.90 mg. How many molecules of cholesterol are present in this deposit?
A solid circular bar of aluminium fits inside a tube of copper with outside diameter of 50mm & 45mm as inside diameter.A pin of 8mm diameter goes through both bars at their end at right angle.
Suppose you want to move a database from its current location to a new location (and computer) that is three hours driving time away. The data has been copied on to 50 DVDs, each containing 4.7GB of data. What is the effective data rate of thi
What masses of calcium sulfate and phosphoric acid can be produced from the reaction of 1.0kg calcium phosphate with 1.0kg concentrated sulfuric acid (98% H2SO4 by mass)?
What is the of a buffer system that contains 0.210 hydrocyanic acid and 0.240 sodium cyanide ? The of hydrocyanic acid is 9.31.
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