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If the annual production of acetyl salicylic acid in the U.S.A were converted to 5-grain aspirin tablets, approximately how many tablets would there be for each person? Assume that the population is about 3.0 X 10 ^8. Show Calculation
How many kilocal are required to increase the temperature of 15.6 g of iron from 122 °C to 355°C? The specific heat of iron is 0.450 J/g °C.
If 75.0 mL of 0.250 M HNO3 and 75.0 mL of 0.250 M KOH are mixed, what is the molarity of the salt in the resulting solution?
You react 25.0 g hydrogen gas with 73.7 g oxygen gas. Determine the mass of water that can be produced from these reactants
If you know that each copper atom (radius = 128 pm) has a mass of 1.055 x 10^-22, how many atoms are there in this cube. What fraction of the cube is filled with atoms. Why is there "empty" space in the lattice
determine the amount of heat (in kJ) given off when 1.42 * 10^4 g of NO2 is produced according to the following equation : 2 No(g) + o2(g) --> 2NO2(g) H = -114.6kj
What were the principal quantum numbers of the initial and intermediate excited states involved?
a sample of sodium reacts complete with 0.497kg of chlorine, forming 819g sodium chloride. what mass of sodium reacted?
Derive the appropriate expression of the internal pressure piT for the berthelot gas. Should the internal pressure piT of the berthelot gas be greater than equal to or less than zero? Explain your choice(s)
how many moles of ammonia are produced? How many moles of H2 remain? How many Moles of N2 remain? What is the limiting reactant?
Gasoline currently powers the majority of automobiles in the U.S. but electric cars have been touted as a way to reduce our dependence on gasoline as well as improve our air quality by reducing production of byproducts associated with gasoline com..
a 0.331-g sample of aspirin prepared in the lab was dissolved in 95% ethanol and titrated to a phenophthalein endpoint with 16.7 ml of 0.107M NaOH Calculate moles of scetylsalicylic acid present in the aspirin sample ;What mass (g) of scetylsalicy..
For the reaction D --> A + C when 1/[D] is plotted versus the time in seconds, a straight line is obtained whose slope is 0.017 M-1s-1. What is the concentration of D (in M) after 86.0 s if [D]o = 0.80 M?
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