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Which of the following is the [OH-] in pure water at room at room temperature? A) 1.0 x 10^-14 M B) 1.0 x 10^-7 M C) 1.0 x 10^7 M D) 1.0 x 10^14 M
what is the minimum number of Kilo Joules needed to change 40 grams of water 100 C to steam at the same temperature and pressure?
What is the molality of a solution consisting of 67.3 mL of benzene (C6H6; d=0.877 g/mL) in 227 mL of hexane (C6H14; d=0.660 g/mL)
How much energy is required to vaprorize 150 ml of c6h6 at 25 c? the density of c6h6 is 0.87 g/ml and the enthalpy of vaporization is 30.8 kj/mol
An aqueous solution has a vapor pressure of 84.0 at 50 . The vapor pressure of pure water at this temperature is 92.6 . What is the concentration of in mass percent?
Write an empirical formula for each of the following. using the format CO2 for CO2. ethylene glycol, car antifreeze, molecular formula C2H6O2
Show the mechanism for the preparation of 1-bromobutane from 1-bromobutanol reacting with NaBr and sulfuric acid. an sn2 mechanism and one step.
Since the periodic table currently has 7 periods (and will have 7 until element 119, which will be the first element of the 8th period, is "discovered"), consider the electron shell with principle quantum number, n = 7.
What mass of water (in g) would need to evaporate from your skin in order to dissipate 0.8 x 10 5 J of heat from your body?
The solution is is undiluted. It spreads out into a diameter of 22.56 meters. Determine the length of a Palmatic-B acid molecule in angstroms.
Diisopropyl ether reacts with concentrated aqueous HI to form two initial organic products (A and B). Further reaction with HI produces organic product C from product B
Three gases (8.00 rm g of methane, CH_4, 18.0 g of ethane, C_2H_6, and an unknown amount of propane, C_3H_8) were added to the same 10.0 L container.
How many grams of NaN3 are required to produce 11.0 ft3 of nitrogen gas if the gas has a density of 1.25 g/L?
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