@X@user.full_name@X@ @GMU: Closed-tube manometers work exactly as barometers except by connecting them to a container its pressure can be measured. Assume you have a closed-ended manometer filled with an oil having a density of 0.8359 g/mL at 20°C rather than mercury (density = 13.546 g/mL at 20°C). What is the pressure if the height of the oil column is 1073.85 cm?

@X@user.full_name@X@ @GMU: Assume you have an open ended manometer filled with an oil having a density of 0.8319 g/mL at 20°C rather than mercury (density = 13.546 g/mL at 20°C). What is the pressure in atmospheres if the level of the arm open to the atmosphere is 137.76 cm lower than the level in the arm connected to the gas sample? The atmospheric pressure reading is 753.91 mm Hg.

@X@user.full_name@X@ @GMU: ACS-Determine the cell potential for the reaction below if = 0.4147M and = 0.0178M 2Cr3+(aq) + 3Cd(s) → 2Cr(s) + 3Cd2+(aq) E°= -0.340V

@X@user.full_name@X@ @GMU: ACS-Determine the cell potential for the reaction below if = 0.2205M and = 0.0157M 3Cu2+(aq) + 2Cr(s) → 3Cu(s) + 2Cr3+(aq) E°= 1.080V

@X@user.full_name@X@ @GMU: What is the balanced reaction for the following galvanic cell?Ni(s)| Ni2+(aq) || Sn2+(aq) | Sn(s)

@X@user.full_name@X@ @GMU: Which of the answers below is an example of a(n) nonelectrolyte reaction?

@X@user.full_name@X@ @GMU: ACS-Using the given rate data what is the correct rate law for the reaction below?NO2 + CO⇋ CO2 + NO  Exp o o Initial Rates, Ms-1 1 0.155 0.155 5.05e-9 2 0.310 0.155 1.01e-8 3 0.310 0.207 1.35e-8

@X@user.full_name@X@ @GMU: Using bond energies from the table below, estimate the heat of formation of NO. There is a double bond between the nitrogen and oxygen. Bond Energies, kJ/mol Single Bonds   H C N O S F Cl Br I H 432                 C 411 346               N 386 305 167             O 459 358 201 142           S 363 272 — — 286         F 565 485 283 190 284 155       Cl 428 327 313 218 255 249 240     Br 362 285 243 201 217 249 216 190   I 295 213 — 201 — 278 208 175 149   Multiple Bonds C=C 602 C=N 615 C=O 799 CºC 835 CºN 887 CºO 1072 N=N 418 N=O 607 S=O (in SO2) 532 NºN 942 O2 494 S=O (in SO3) 469

@X@user.full_name@X@ @GMU: A flexible container was filled with CH4 gas at a pressure of 1.07 atm and volume of 15.018 L. What pressure would this gas exert if the volume increased to 25.44 L? Assume temperature is constant.

@X@user.full_name@X@ @GMU: Balance the reaction below; determine the sum of the coefficients; this is in an acidic solution! Include co-efficients for any unshown species (such as water and H+)._BrO3- + _Cd → _Br2 + _Cd2+