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At a temperature T, a previously empty 5.00L flask is prepared by adding 1.20 mol SO2 and 1.5 mol of O2. Determine the concentrations of SO2, O2 and SO3 once equilibrium is established. KC=963,
If 0.176 moles of Mg have combined with 0.220 moles of O, what is the empirical formula of the product?
A volume of 95.0ml of h2o is initially at room temperature 22.0 C. A chilled steel rod at 2.00 *C.is placed in the water. If the final temperature of the system is 21.2 *C. what is the mass of the steel bar?
Calculate the number of moles of NaHCO3 that reacted in each beaker. (The molar ratio between evolved CO2 and the bicarbonate is 1:1.
What mass of sucrose C 12 H 22 O 11 must be mixed with 543 grams of H 2 O to make a solution with an osmotic pressure =8.00 atm at the temperature of 12 degree celsius?
Exactly 100 pounds of cane sugar (dextrose), C12H22O11, were accidentally discharged into a small stream saturated with oxygen from the air at 25 celcius.
A star is 3.28 x 1014 km from Earth. How many days does it take for light to travel from the star to Earth?
If you mix 50mL of 0.34M HCN with 100mL of 0.17M KOH what is the pH of the resulting solution. (Ka=4.0 x 10^-10)
What volume of hydrochloric acid solution of 0.25 M must be diluted to prepare 1.00 L of 0.040 M HCl and calculate Keq at this temperature for the given reaction 2 NOCl (g) W 2 NO (g) + Cl 2 (g) ( reaction is at equilibrium):
A reverse osmosis plant desalinates 5x10^6 L/day of feedwater containing 1500mg/L of salts yielding 3x10^6 L/day of product water with 75 mg/L of salt. What would the salt concentration be in the brine?
121 cal of heat are added to 50.0 g of water initially at 15.0 (degrees celsius). What is the final temperature of the water.
suppose you wish to make a .879 L of .250 M silver nitrate by diluting a stool solution of .675 M silver nitrate. How many milliliters of silver nitrate do you need to use.
If the sample reacted completely and produced 1931 mL of H2S hydrogen sulfide at 29.82 °C and 759.7 mm Hg, determine the mass percentage of Cadmium sulfide in the mixture?
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