One commercial system removes SO2 emissions from smoke at 95 degrees C by the following set of balanced reactions SO2 + Cl2 ------> SO2Cl2 SO2Cl2+2H2O -------->H2SO4+2HCl H2SO4+Ca(OH)2----->CaSO4+2H2O assuming the overall process is 90% efficient how many grams of CaSO4 may be produced from 80 g of SO2? report the answer to 3 significant figures

Acetic acid and ethanol react to form ethyl acetate and water, like this: HCH,CO,(aq)+C2H;OH(aq) →C,H;CO,CH3(aq)+H,O() Imagine 217. mmol of C,H,CO,CH, are removed from a flask containing a mixture of HCH,CO,, C,H,OH, C,H,CO,CH, and H,O at equilibrium, and then answer the following questions. O Zero. What is the rate of the reverse reaction before any C2H5CO,CH3 O Greater than zero, but less than the rate of the forward reaction. has been removed from the flask? O Greater than zero, and equal to the rate of the forward reaction. O Greater than zero, and greater than the rate of the forward reaction. O Zero. What is the rate of the reverse reaction just after the C,H5CO,CH3 has been removed from the flask? O Greater than zero, but less than the rate of the forward reaction. O Greater than zero, and equal to the rate of the forward reaction. O Greater than zero, and greater than the rate of the forward reaction. O Zero. What is the rate of the reverse reaction when the system has again…

Nitric acid, HNO3, reacts with potassium hydroxide as follows: HNO3(aq) + KOH(aq) ⟹ KNO3(aq) + H2O(l) A student places 55.0mL of 1.3M HNO3 in a coffee cup calorimeter, and noted that the temperature was 23.5oC. 55mL of 1.3M KOH also at 23.5oC was added. After quickly stirring with a thermometer, the temperature rose to 31.8oC. Calculate the heat generated by the reaction.

Gypsum is the hydrate of calcium sulfate, CaSO4 · 2 H2O.  It is the primary material in sheet rock, used to make walls in houses. If you heat 21.05 g of the hydrate and drive off the water, what is the weight of the anhydrous salt remaining?  Report your response to the proper degree of certainty and include the correct unit symbol (i.e., g, mL, km, etc.).