Blog

@X@user.full_name@X@ @GMU: A compound contains only lithium and iodine. A sample weighing 29.1 g of this compound contained 1.51 g of lithium. How many grams of iodine would there be in another sample of this compound containing 2.71 g of lithium?

The complete combustion of butanol, CH3(CH2)2CH2OH, yields carbon dioxide and water as products (see reaction below). __CH3(CH2)2CH2OH + __O2 ↔ __CO2 + __H2O The ratio of the number of molecules of O2 required to molecules of butanol is

@X@user.full_name@X@ @GMU: What is the free energy change at 25°C for the reaction below, if ΔGfo(CH4(g)) = -50.790 kJ/mol, ΔGfo(C9H16(g)) is 244.289 kJ/mol.9CH4(g) → C9H16(g) + 10H2(g)

@X@user.full_name@X@ @GMU: ACS-Determine the cell potential for the reaction below if [Mg2+] = 0.3143M and [Ag1+] = 0.0151M 1Mg2+(aq) + 2Ag(s) → 1Mg(s) + 2Ag1+(aq) E°= -3.180V

@X@user.full_name@X@ @GMU: What is the standard cell voltage at 25.0oC for the reverse of the reaction below?Cr3+(aq) + Al(s) → Cr(s) + Al3+(aq) K = 3.75e39

@X@user.full_name@X@ @GMU: ACS-Using the given rate data what is the correct rate law for the reaction below?2NO + H2 ⇋ N2O + H2O  Exp [NO]o [H2]o Initial Rates, Ms-1 1 0.152 0.152 1.01 2 0.304 0.152 4.05 3 0.304 0.226 6.02

@X@user.full_name@X@ @GMU: ACS-What mass of palladium would be plated on an electrode from a solution of Pd(NO3)2 at a current of 5.00 A for 362.97 s?

@X@user.full_name@X@ @GMU: A compound contains only potassium and bromine. A sample weighing 3.29 g of this compound contained 1.08 g of potassium. How many grams of bromine would there be in another sample of this compound containing 3.16 g of potassium?

@X@user.full_name@X@ @GMU: ACS-Using the given rate data what is the correct rate law for the reaction below?CH3Cl(g) + H2O ⇋ CH3OH(g) + HCl(g)  Exp [CH3Cl]o [H2O]o Initial Rates, Ms-1 1 0.169 0.169 8.78e-1 2 0.338 0.169 1.76 3 0.338 0.285 5.00

@X@user.full_name@X@ @GMU: Assume you have an open ended manometer filled with an oil having a density of 0.7215 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 158.46 cm higher than the level in the arm connected to the gas sample? The atmospheric pressure reading is 726.52 mm Hg.