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What mass of is required to form 1.2 of at a temperature of 295 and a pressure of 0.998 ? With the equation:2H2O(l)----->2H (g)+O (g)
Adrenaline contains 56.79% carbon, 6.56% H, 28.37% O, and 8.28% N by mass. What is the empirical formula
If a copper-containing compound is found to be 29.2% Cu by mass, and there is only one copper atom per formula unit, what is the formula mass of the compound in amu
consider the reaction that describe the haber process for the production of ammonia nh3n2g3h2g lt---gt 2 nh3 g for
if the pressure exerted by ozone o3 in the stratosphere is 3.0 x 10-3 atm and the temperature is250 k how many ozone
Questions on H-NMR spectrum of isopentyl acetate - What would the effect on yield be of allowing the crushed Dry Ice to be exposed to the atmosphere for long periods of time before being used?
The density of cork is 0.235g/cm3, and the density of lead is 11.35g/cm3. Will the combination of cork plus lead float or sink.
The heat of vaporization for the compound is 27.49 kJ/mol. Calculate the heat required to convert 26.78 g C2Cl3F3 from -59.34 oC to 83.11 oC
The ionization constant for the weak acid HA is 4.0 x 10^-8. Calculate the equilibrium concentration of H+, A- and HA in a 0.050 M solution of the acid.
important to dry the hexane extract phase containing the yellow and green pigment prior to performing column chromatography.
The combustion of carbon with excess oxygen forming carbon dioxide is exothermic. C(s) + O2(g) => CO2(g) ?Hrxn = -393 kJ If 8,622kJ of heat is needed from the combustion, how much carbon (g) must be consumed
why are methylene chloride and ethanol used to recrystallize trans-1,2-dibenzoylethylene
Carboxylic acids have higher than expected boiling points due to dimeric associations involving hydrogen bonding. The structure of 3-methylbutyric acid is shown below. Draw a second molecule of 3-methylbutyric acid
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