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If you had excess chlorine, how many moles of aluminum chloride could be produced from 15.0g of aluminum
What mass of water is produced from the complete combustion of 8.10×10?3 of methane
What mass of carbon dioxide is produced from the complete combustion of 8.10×10?3 of methane
Calculate the molarity of an NaOh solution if 32.6 ml of this solution is required to neutralize 0.854g of potassium hydrogen phathalate. the molecular weight of potassium hydrogen phathalate is 204
What is the enthalpy change for the combustion of 12.5g C4H10 in excess oxygen? C4H10 (g) + 13/2 O2 (g) ------? 4 CO2 (g) + 5 H2O (g) H0 = -1895 kJ
Assuming that the microwave ovens emit radiation with a wavelength of 12.2 cm, calculate how many photons are emitted per second in a 1000-Watt microwave oven.
Suppose that 33.55 g of ice at -12.9°C is placed in 54.72 g of water at 99.8°C in a perfectly insulated vessel. Calculate the final temperature. (The molar heat capacity for ice is 37.5 J K-
The oxygen content of a fuel that is recommended in order to ensure complete combustion about 2.7%. (a) Consider a case where methyl tertiary butyl ether (MBTE) is to be added to the conventional ga
Silver chloride, AgCl, is a sparingly soluble solid. Answer the following questions about a saturated solution prepared by placing solid silver chloride in a 3.49 10-5 M NaCl(aq) solution
What is the enthalpy change for the combustion of 12.5 g C4H10 in excess oxygen? C4H10 g + 13/2 O2 g = 4 CO2 g + 5 H2O g H= -1895 kJ
what is the pressure of dry H2 in mmHg. and in atm. Assuming the ideal gas behavior, how many moles of H2 gas were collected
When extracting an organic compound from an aqueous solution into an organic solvent, e.g., diethyl ether, a chemist will sometimes add sodium chloride to the aqueous solution. What is the purpose o
A mercury spill occurs in a lab whose temperature is 30 Degrees Celsius. The vapor pressure of gaseous mercury at this temperature is 3.65 x 10^-6 atm
The following reaction is known to have a standard change in enthalpy of 148 kJ/mol and a standard change in entropy of 312 J/(mol•K) at 25ºC. What is the normal boiling temperature (º
If the valve is open and the gasses mix and assuming that the temperature is constant, what is the final total pressure
what solid is left behind when you dissolve acetaminophen completely in 1:1 dichloromethane
Trouton's rule states that the entropy of vaporization of nanopolar liquid is 88 JK-1 mol-1.. the normal boiling point of 1-octene is 121.3 C and its melting point is -101.73 C determine the enthalp
If 8.0 moles of the gas A is placed in a 60.0 L tank with 1.0 moles of B at 0 degrees celsius and 1 atm, they react according to the equation: 2A(g) + B(g) ---> 3C(g) + D(g) How many moles are pr
This solution freezes at -0.159C calculate the degree of dissociation( the fraction of molecules dissociated) for the acid in this solution ( assume the mean ionic activity coefficient has a value o
If 8.0 moles of the gas A is placed in a 60.0 L tank with 1.0 moles of B at 0 degrees celsius and 1 atm, they react according to the equation. 2A(g) + B(g) ---> 3C(g) + D(g) How many moles are pr
An ice bag containing 212g of ice at 0 °C was used to treat sore muscles. When the bag was removed, the ice had melted and the liquid water had a temperature of 32.5°C.How many kilojoules of heat
An ENVIRONMENTAL SCIENCE CLASS An ENVIRONMENTAL SCIENCE CLASS
A bottle containing 1 kg of water (18.01g/mol) is boiled until evaporation is complete. Find w, q, U, H for the process. Hvap = 40.6kJ/mol. My question is when we find the w what temperature we u
Photosynthesis uses 660 nm light to convert carbon dioxide and water into gluclose and oxygen. calculate the energy of a mole of a photon
Terminal alkynes are acidic compounds, with pKa values around 25. That means they are about: a. one million times more acidic than water b. one billion times more acidic than water c. one billion ti