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How long does it take ( in minutes ) for light to reach Earth from the Sun, a distance of 1.596 x 10^8 km?
Oxygen gas has an oxidizing strength comparable to that of nitric acid. Patina is a green or greenish blue coating that forms on copper metal in the environment. Account for its formation.
the partial pressures of gas A and gas B respectively are 0.298 ATM and .702 atm if 0.130 mol a 3rd gas is added with no change in volume or temperature, what would the total pressure become?
Under certain conditions, the formation of ammonia from nitrogen and hydrogen has an 8.12% yield. Under such conditions, how many grams of NH3 will be actually produced.
You make 1.00 L of a buffered solution (pH = 4.00) by mixing acetic acid and sodium acetate. You have 1.00 M solutions of each component of the buffered solution. What volume of each solution do you mix to make such a buffered solution
A pure sample of the solvent phenol has a freezing point of 40.85 degrees C. a 0.414 molal solution of isopropyl alcohol in phenol was observed to have a freezing point of 38.02 degrees C.
Complete the following table for aqueous solutions of potassium hydroxide. a. given: density (g/mL):1.05 molarity:1.13 find molality and mass percent of solute b. given: density (g/mL):1.29 Mass percent of solute:30 find molarity and molality c.gi..
The North American record for highest recorded barometric pressure is 31.85in Hg , set in 1989 in Northway, Alaska. 1. Convert this pressure to millimeters of mercury (using 4 significant figures) 2. convert this pressure to atmospheres
Determine the collision frequency at room temperature and compare this with the rate constant and teh Arrhenius parameters determined above.
Assuming that the calorimeter absorbs only a negligible quantity of heat and that the density of the final solution is 1.0 g/mL, calculate the enthalpy change per mole of BaSO4 formed.
What would happened if HCl was accidentally used instead of Na2CO3 to extract caffeine from tea bags? Would you be able to fix your mistake. How
A 25:75 mixture of acetone:toluene is heated to 70 C at a pressure of 760 mmHg. What is the total vapor pressure of the system? Is the system a liquid below boiling, at boiling, or a gas?
the following reactions 2K(s) +Br2(l) --> 2KBr (s) AgNO3 (aq) + NaCl (aq) -->AgCl (s) + NaNO3 (aq) HCl (aq) + KOH (aq) --> H2O (l) + KCl (aq) are all examples of
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