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Explain why does the saponification of esters under basic conditions require a full equivalent of hydroxide and not a catalytic amount?
if the molecular weight of the compound is 120gmol then compute how many mg of the compound p do you have in 20ml of 4
You weighed out 204 mg of maleic anhydride. Which volume of 2,3-dimethylbutadiene will you need to add? The answer should be in mL with three digits after the decimal point.
Consider the combustion reaction: CH4(g) + O2(g)= CO2(g) + H2O(l) is this an exothermic reaction. If 100g of CH4 is burned, calculate the heat exchange (balance the equation).
what volume of oxygen gas will be collected if a 5gram sample of potassium permanganate decomposers at 25 degrees celcius and 1 atmospheric pressure?
The mass spectrum of an organic compound shows the relative abundances of M to be 46.08% and M 1 to be 1.495%. Assuming the peaks are caused by 12C and 13C isotopes, determine the number of carbon atoms in the compound. Natural abundances
hammered into a thin sheet to be used as aluminum foil. If the thickness of the aluminum foil is uniformly 13 um, what area of aluminum foil (in cm^2) can be made? The density of aluminum metal is 2.969 g/cm^3.
Suppose that you are climbing a high mountain and the oxygen partial pressure in the air is reduced to 75 torr. Estimate the percentage of the oxygen carrying capacity that will be utilized,
A first order decomposition reaction has a half-life of 60yr. What percentage of the original amount is left after 164years. (give answer to 3 sig figs using E notation)
What is the volume of the gas in mL at each of the following pressures, if there is no change in temperature and amount of gas? 1) 0.40 atm 2) 2.00 atm 3) 2500 mm Hg
understanding of chemistry basics.1. boltzmanns critics claimed his work was unscientific because he.a. presented his
A 67.9 g mixture of the compounds sodium sulfide and potassium bromide is 40.9 % by mass sodium sulfide. The compound sodium sulfide is 41.1 % by mass sulfur. Calculate the mass (g) of sodium in the mixture.
A certain alcoholic beverage contains only ethanol (C2H6O) and water. When a sample of this beverage undergoes combustion, the ethanol burns but the water simply evaporates and is collected along with the water produced by combustion.
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