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The pH of a solution is 6.7. From this statement alone, can you conclude that the solution is acidic? If not, what additional information would you need
must be added to obtain iced tea at 11.5 C? The specific heat of the tea is 4.18 J/(g*C), and delta H for ice is +6.01 KJ/mol.
How much energy in kJ must be absorbed to heat up a volume of ocean water 2 m high by 20 km wide by 30 km deep by 3°C.
A weather balloon at launch is partially inflated with 3.00 times 10 power 4l of helium at STP. what will be the volume of helium at an altitude of 7km, where the pressure is 0.41atm and the temperature is -20 degrees Celsius?
List the letter that corresponds to the reagent from the reagent table you need to carry out the following synthesis in 5 steps or less. Heat may not appear on the reagent table with the reagent
Describe why barium must be disposed of properly. What are the health effects of excess barium in drinking water? What is the maximum allowable concentration of barium in public water systems?
Does pH have an effect on the cell potential (Ecell) for the following oxidation-reduction reaction? 5Fe^2+(aq) + MnO4^-(aq) + 8H^+(aq) ---> 5Fe^3+(aq) + Mn^2+(aq) + 4H20(l)
The reaction between hydrochloric acid and zinc metal produces hydrogen gas and zinc chloride. If 50g of each hydrochloric acid and zinc are mixed
Calculate the volumetric size of a water molecule for water in the form of ICE just below the melting point. Give answer in angstroms
What is the half-life of a compound if 80. percent of a given sample of the compound decomposes in 72 min? Assume first-order kinetics.
how many grams of ethylene glycol should you add to each liter of water? First convert the temperature to degrees Celsius, use the Kf vaule of 1.853 degrees C/molal for water, and recall that the density of water is 1.00 g/mL.
degree celsius in a heat exhanger by 54430 kg/h of hot gas flowing counterflow and entering at 427 degree celsius. (Cpm=1.005 kj/kg*K). The overall Uo=69.1 W/m^2*K. Calculate the exit gas temperature and the heat transfer area.
If 6.0 moles of ethene and 6.0 moles of hydrogen are introduced into a 2.0 L sealed vessel and allowed to equilibrate at 200ºC, what is the equilibrium concentration of the ethene
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