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Explain when coal is burned, the sulfur present in coal is converted to sulfur dioxide (SO2) which is in charge for the acid rain phenomenon.
S(s) + O2(g) ? SO2(g)
If 2.72 kg of S are reacted with oxygen compute the volume of SO2 gas (in mL) formed at 20.1°C and 1.11 atm.
The kinetics of an enzyme is measured as a function of substrate concentration in the presence and absence of 2 mM inhibitor. The data from the experiments are shown below- What are the apparent Vmax and Km in the absence and in presence of the inh..
suppose you titrate a 25 ml sample of vinegar with 17.62 ml of a standardized 0.1045 N solution of NaOH. what is the molarity of acetic acid in this vinegar?
The vapor pressure of carbon tetrachloride, , is 0.354 atm and the vapor pressure of chloroform, is 0.526 atm at 316K . A solution is prepared from equal masses of these two compounds at this temperature.
Siler metal crystalizes in a face-centered cubic lattice with L as the length of one edge of the unit cube. The center-to-center distance between nearest Silver atoms is....L/2 or 2 1/2L or 2L or L/2 1/2 or none of the above
Calcium hydroxide, Ca(OH)2, has a solubitlity of 1.85 g/L at 0.0 C. What is the solubility product constant (Ksp) for a saturated solution of Ca(OH)2 at 0.0 C
If 5.0L of nitrogen at 12 degrees Celsius and 1.30 atm pressure reacts with the same volume of hydrogen at the same temperature and pressure, what volume of ammonia is obtained at that temperature and pressure
a gas mixture contains helium and oxygen at partial pressures of 255 torr and 0.450 atm. what is the total pressure in
When 4 g sample of NH4NO3(s) was dissolved in 60 g of water in a coffee-cup calorimeter, the temperature drops from 296 to 291 K.
with this balanced equation of copper carbonate calculate the concentration of copper in solution
calculate the solubility of potassium bromide at 23 degrees celuius.assume that the solubility increases by an equal
While making a methyl butanoate ester, and after we were done heating it up, we filtered it with water and NaHCO3. What gas escaped during the sodium bicarbonate washing?
Calculate the pH at 25°C of an aqueous solution that is 0.320 M in ethylamine and 0.140 M in ammonia (i.e. the solution contains both compounds). The pKa of the conjugate acid of ethylamine is 10.65 and the pKa of the conjugate acid of ammonia is ..
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