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The peregrine falcon has been measured as traveling up to 350 in a dive. If this falcon could fly to the Moon at this speed, how many seconds would it take?
What mass of solid sodium fluoride (molar mass = 41.99 g/mol) should be added to 1.0 L of 0.23M hydrofluoric acid to make a buffer with a pH of 2.94? (Ka of HF = 1.36 x 10-3)
A canister with a volume of 694 L contains how many moles of oxygen at STP. A chemical reaction produces 138 mol of HBr gas. What volume will that gas occupy at STP
50.0 mL of Ba(OH)2 is titrated to the final equivalence point with 19.34 mL of 0.250 M H3PO4. What is the concentration of the original Ba(OH)2 solution
In the microscale oxidation of a Xylene to a Phthalic Acid, 825 mg potassium permanganate, 100 mg sodium carbonate, 3 mL water were put in flask and warmed then 125 microliters of unknown xylene and 10 mg detergent were refluxed for 45 minutes.
A sample of cadmium with mass 2.248g is dissolved in 3.00M HCl. What volume of HCl is required to dissolve the Cd. (Cd dissolves in HCl to form Cd^2+)
Calculate the freezing point depression of a solution containing 0.20% wt/v glucose (mol wt of 180) and 0.5% NaCl
how many no. of hydrogen ions are present in 10 millionth part of 1.33 cc of pure water at 25 degree celsius.
in a saturated solution of mgf2 at 18c the concentration of mg2 is 1.21 x 10-3 molar. the equilibrium is represented
1.assuming that the answer to part b is yes at what temperature will the crystals begin to appear when the students
Calculate the number of grams of alcohol present in 1.00 L of 60. proof gin. The density of ethanol is 0.798 g/mL.
what is the total pressure in a canister that contains oxygen gas at a partial pressure of 804 mm Hg, nitrogen at a partial pressure of 220 mm Hg, and hydrogen at a partial pressure of 445 mm Hg.
A solution containing CaCl2 is mixed with a solution of Li2C2O4 to form a solution that is 3.5 x 10^-4 M in calcium ion and 2.33 x 10^-4 in oxalate ion. What will happen once these solutions are mixed. Ksp(CaC2O4) = 2.3 x 10^-9
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