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The average distance between planet X and Earth is about 2.59 x 108 miles. How long (minutes) would it take pictures transmitted from a space vehicle on Planet X's surface to reach Earth? Round to one decimal place,
From the examples you state, select one acid, one base, and one salt and describe specifically how and where they are used in therapeutic processes. Define a buffer and explain how a buffer works.
A solution is prepared by adding 80.0 mL of 0.090 M HBr to 130.0 mL of 0.50 M HI. Calculate the concentrations of all species in this solution. HBr and HI are both considered strong acids.
determine what percentage (by mass) of the detergent must be sodium carbonate in order to completely precipitate all of the calcium and magnesium ions in an average load of laundry water.
A solution is made by mixing 50.0 ml of a HCl (aq) solution which has a pH of 3.00 with 50.0 ml of a KOH solution which has a pH of 12.00.
A solution contains 10.0 g pentane, C5H12, 10.0 g hexane, C6H14 and 10.0 g benzene, C6H6. What is the mole fraction of hexane?
Calculate delta g rxn and e cell for a redox reaction with n=3 that has an equillibrium constant of K
what is the vapor pressure of water over the solution at 90degrees celcius?
Compute the reactor volume and space time to get 90% conversion in a PFR and in a CSTR
what is the length of the unit cell when tantalum (atomic radius = 145 pm) crystallizes in a bcc structure
How do you calculate the pH of a solution given the concentration of OH- ions?
Nitrosyl chloride (NOCl) decomposes at elevated temperatures according to the equation 2NOCl(g) ->2NO(g) + Cl2(g). Calculate Kp for this reaction at 680°C. (For this reaction ΔH° = 81.2 kJ/mol, ΔS° = 128 J/K·mol)
A 5.0 dm3 sample of oxygen at a pressure of 200kPa and 2.0dm3 sample of nitrogen at a pressure of 500kPa are introduced into a 2.5dm3 vessel.
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