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A 12-gram mixture of methane, CH4, and ethane, C2H6, is completely combusted in oxygen. If the total mass of CO2 produced is 34.8 grams, what was the approximate mass of the methane in the original mixture?A. 2 g CH4B. 7 g CH4C. 5 g CH4D. 9 g CH4
please discuss all six questions listed below as they relate to the financial statements of any u.s. public company of
Suppose that 0.650mol of methane, CH4(g), is reacted with 0.800mol of fluorine, F2(g), forming CF4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
A mixture of gases contains 0.77 mol N2, 0.35 mol O2, and 0.12 mol CO2. If the total pressure of the mixture is 1.48 atm, what is the partial pressure of each component. N2 atm O2 atm CO2 atm
Report the actual mass of H2O delivered to the flask. (Density of water = 1g/mL at 25°C.) (Poured 100mL of water in flask)
In aqueous solution, the hydrated radius of hemoglobin is found to be 3.55 nm. How many water molecules hydrate a hemoglobin molecule?
The element M forms the chloride MCl4 containing 75.0% Cl by mass. What is the atomic weight of M?
Show the terminal alkyne and alkyl halide from which the following products can be obtained. If two routes look freasible, list both
If the mole fraction of the ethanol in the solution is 0.65, calculate its mole fraction in the vapor phase at this tempature.The vapor pressures of ethanol and 1-propanol are 108mmhg and 40 mmg respectively.
NaF > MgF2 due to the lower molar mass of NaF. d) Si > SiF4 due to covalent-network bonding in Si, versus dispersion forces in SiF4. e) SiO2 > SeO2 due ionic bonding in SiO2 but not in SeO2.
The solubility of silver carbonate is 33.5 mg/L. What is it molar solubility and what is its Ksp?
Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the reaction:
Calculate the distance (in Angstroms) and energy (KJ/mol) where the molecules are most attractive.
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