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How many litres of ethyl mercaptan (C2H5SH ; liquid density = 0.8931 g/cm^3) should be added to 100,000 standard cubic meters of natural gas to produce a concentration in the gas of 1ppm?other infomolar mass (C2H4SH) = 62 g/mol , (CH4 - natural gas) = 16 g/mol1 standard m^3 = 1000L1 mol = 22.4 L at STP (p = 1 atm, T = 273 K)
A 240.0 mL buffer solution initially contains 3.0×10-2 M of HCHO2 and 3.0×10-2 M of NaCHO2. What mass of the correct reagent should you add
If something goes wrong, all of the cyanide could end up in the air of the lab, calculate the minimum size of the lab to keep the concentration of hydrogen cyanide in the lab below 5% of the lethal dose.
What is the concentration of a saturated calcium carbonate solution?
blood has normal glucose levels varies from 70 to 110 mg glucose per 100 ml of blood. brain damage may occur if the
If you have 410.0 mL of water at 25.00 °C and add 140.0 mL of water at 95.00 °C, what is the final temperature of the mixture. Use 1.00 g/mL as the density of water.
a metal sulfide, M2(CO3)3, has a Ksp of 4.15 x 10^-42. What is the molar solubility of this sulfide in water? Assume the sulfide dissolves ideally (ignore hydrolysis effects).
Na3AlF6(l) 3 Na(l) + Al(l) + 3 F2(g) What is the concentration of F2 over a bath of molten cryolite at this temperature? a) 3 10-35 M b) 5 10102 M c) 6 10-74 M d) 8 10-312 M e) 8 1017 M
A gas is flowing through a certain system. At the inlet, the pressure is 0.3 MPa and the density is 1.2kg/m^3. At the outlet, the pressure is 0.4MPa and the density is 0.2kg/m^3. Determine the flow work the system does to the outside.
How many grams of KOH must be added to 0.500 L of the buffer to change the pH by 0.10 units
Enough Al2(SO4)3 solid is added to water to prepare 100.0 mL of a 0.150 M solution of aluminum sulfate. What is the concentration of sulfate ion in solution?
the electrode half-reactions and calculate the standard potential of the following cell: Cu / Cu2+(aq) // Mn2+(aq),H+(aq) / MnO2(s) / Pt
Aqueous potassium iodide reacts with aqueous copper(II) nitrate to form a mixture of solid copper(I) iodide, solid iodine, and aqueous potassium nitrate.
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