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A snorkeler takes a syringe filled with 17mLof air from the surface, where the pressure is 1.0atm, to an unknown depth. The volume of the air in the syringe at this depth is7mL.
What is the pressure at this depth?
Express your answer using two significant figures.
0.2M guanidine reacting with 0.2 moles of HCl. Assume that the volume of the solution does not change.- Calculate the pH. (pKa of Guanidine = 13.6)
Calculate the change in enthalpy of this reaction. Specific heat of the solution = 4.184 J/(g oC) State your answer in kJ with 3 significant figures. Don't forget to enter the unit behind the numerical answer. The molecular weight of KOH is 56.2 g..
A cell composed of a platinum indicator electrode as well as a silver-silver chloride reference electrode in a solution containing both Fe2 as well as Fe3 has a cell voltage of 0.711 V. If the silver-silver chloride electrode is replaced with a sa..
Write a balanced equation for the reaction of Al(H2O)6^3+ in aqueous KF. Include physical states for each reactant and product
imagine you are a water molecule, describe your travels through the many you have been and might go in the future as you make your way around the hydrologic cycle time after time. Include travels through organisms.
New ads for the toyota Prius claim that it has saved over 1 billion gallons (2.8 x 10^9kg) of gasoline. Assuming that gasoline is 100% octane (C8H18) how much has the prius reduced emissions of carbon dioxide.
How much limestone must be decomposed by heating to produce 150.0 grams of lime, CaO?assuming that the limestone contains 85.0% pure CaCO3.
What is the composition of this mixture on a %, by mass, basis? Show all calculations; report answer to the maximum number of significant figures possible
Polyethylene Density, (a) Which is the higher density of polyethylene, linear or branched? Select the choice with the best accompanying explanation.
Explain what non desirable gas-producing reaction might occur if sodium sulfates a good reducing agent as well as a non oxidizing acid is mixed in a waste jar. Give an example of such a mixture.
A 50.0 ml sample of 0.100 M HNO3 is titrated with 15.0 ml of 0.200 M NaOH. What is the pH of the resulting solution, a) 1.00
A +2.5 uC charge is located at point A at the origin and a-6.0 uC charge is located at point B at +25 cm on the x axis. Point C is located at +10 cm on the x-axis.
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