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Graphite is burned in oxygen to give carbon monoxide and carbon dioxide. if the product mixture is 33% CO and 67%CO2 by mass, what is the heat from from combustion of ig og graphite?
Calculate the molarity of the solution at the limit of detection if the molecular weight of THC is 315 g/mol
1) How many litres of hydrogen gas will be produced by the decomposition of 90 L of water? (Assume that temperature and pressure are constant) Show ALL work.
Calculate the molarity of a solution of sodium hydroxide, NaOH, if 23.64 mL of this solution is needed to neutralize 0.5632 gof potassium phthalate
explain methods of industrial preparation of
identify the stronger acid in each of the following pairs a)NH4^+ or H3O^+ b)H2SO4 or HCN c)H2O or H2CO3
1. calculate the freezing point and the boiling point of a solution prepared by dissolving 5.0 g of kclin 550 g of
Acetoacetic ester gave me a color with ferric chloride very much like that obtained with phenol. Why
The average mass of an atom of sulfur is 5.33 X 10-23 g. How many sulfur atoms are present in a 100.0g sample of sulfur
Potassium iodide is added to common table salt, sodium chloride, to help prevent the enlargement of the thyroid gland, a condition known as goiter.
A car travels at 58.0 miles per hour and gets 12.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 1.50 hour trip?
Solve an equilibrium problem (using an ICE table) to calculate the pH 1)a solution that is 0.13M in NH3 and 0.15M in NH4Cl 2) 185.0 mL of 0.12M C2H5NH2 with 265 mL of 0.20M C2H5NH3Cl
Superman flies past you at a speed of 1000 miles/hr. At the moment he passes you, you throw a rock at him at a velocity of 750 meters per second
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