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Calculate the Molarity of a 0.074 M solution of ethyl alcohol in water at 25 degrees C. (Assume the density of the solution at such a low concentration is equal to that of water at 25 degrees C, 0.997 g/mL.)
name the four general types of carbonyl reactions. give an example of each including a detailed mechaism. use a propyl group next to a carbonyl in each example.
What happens when the base solution was added to the acid solution but was not stirred while temperature measurements were made
a sample consisting of various gases contains 3.8times10-6 mole fraction of radon. this gas at a total pressure of 31
What concentration of aqueous CaCl2 solution freezes at -10.2ºC? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
Table salt contains 39.99g of sodium per 100 g of salt. The US FDA recommends that adults consume less than 2.40 g of sodium per day. A particular snack mix contains 1.20 g of salt per 100g of the mix. What mass of the snack can you consume and st..
Calculate the mass of potassium hydrogen phthalate, KHC8H4O4 (MM is 204.2 g/mol) needed to react completely with 20 mL of 0.1 M NaOH solution.
Determine the partial pressure of oxygen O2 If the total pres- sure =80 torr, the partial pressure of CO=330 torr and the CO2 has a partial pressure = 330 torr?
The standard free energy change associated with the dissolution of ammonium nitrate in water is -6.73 kJ/mol at 298.15 K. NH4NO3(s)->NH4NO3(aq) What is the equilibrium constant for the reaction. (R=8.314 J/K*mol)
How many grams of carbon dioxide would be obtained from the burning of 92g of ethanol in oxygen?
Determine the barometric pressure of water If a mercury (Hg)barometer reads 755 mmHg,?Express your answer in cm?
what is the pH of the hydroflouric acid solution prior to adding sodium fluoride? (b) how many grams of sodium fluoride should be added to prepare the buffer solution? Neglect the small volume change that occurs when the sodium fluoride is added.
use of fossil fuels.we use fossil fuels oil gas coal for many things power for transportation electricity production
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