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Write an empirical formula for each of the following. (Type your answer using the format CO2 for CO2.)
(a) Ethylene glycol, car antifreeze, molecular formula C2H6O2
(b) Peroxodisulfuric acid, a compound used to make bleaching agents, molecular formula H2S2O8
A 1.33 M solution of citric acid (H3C6H5O7) in water has a density of 1.10 g/cm3. Calculate the mole fraction of the citric acid.
nitrogen and hydrogen gases react to form ammonia gas as followsn2g3h2g--gt2nh3gat a certain temperature and pressure
Consider the following pair of nucleophiles in CH3OH. Which, a: F- or b: N3- is the better nucleophile. Consider the following pair of nucleophiles in CH3OH. Which, a: CH3S- or b: H2O is the better nucleophile
a polysaccharide of unknown structure was isolated subjected to exhaustive methylation and acid hydrolysed. analysis of
the power delivered to a photodetector that collects 8.0*10^7 photons in 3.8 ms from monochromatic light is 0.72 microwatt. what is the frequency of the radiation
Indicate which compounds present i) in the reactants and ii) in the products from this lab experiment could be expected to give positive tests with a) permanganate and b) ceric ammonium nitrate.
a sample of Ringer's solution contains the following concentractions (mEq/L) of cations: Na 147, K 4 and Ca2 4. If CI- is the only anion in the solution
calculate the number of PCl3 molecules formed when 97 P4 molecules and 606 Cl2 molecules react?
sample of carbon monoxide gas occupies a volume of 0.225 L. The gas is transferred to a 1.50-L flask and the temperature is reduced to -15 degrees C. What is the pressure of the gas in the flask?
A 2.55 g sample of naphthalene (C10H8) is dissolved in a 30.0 g of benzene (C6H6). Benzene freezes at 5.50 degrees C and the resulting solution freezes at 2.13 degrees C. What is the freezing point depression constant, K sub f, of benzene?
Determine the phase composition and temperature when equilibrium is reestablished?
when ammonia is burned in oxygen, free nitrogen gas and water are produced. What volume of ammonia will react completely with 25.0 L of oxygen? what volume of nitrogen gas is formed.
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