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The pH of a bicarbonate-carbonic acid buffer is 7.80. Calculate the ratio of the concentration of carbonic acid (H2CO3) to that of the bicarbonate ion (HCO3-).
Gas Nitrous Oxide (N20) is used as an anesthetic and in aerosol cans to produce whipping cream. It is a potent greenhouse gas and decomposes slowly to N2 and O2.
Chloroform is an excellent solvent for extracting caffeine from water. KD = 9 for caffeine in chloroform-water at 25 degrees celecius. What weight of caffeine would be recovered from a solution of 4.0 g caffeine in 100 mL water by a single extract..
NaOH is needed to reach the endpoint pH of 3.5. Show whether the experimental value of ANC agrees with the therorectical value determined in part c.
Using the intermolecular bonding between H2O moleculesin it's two condensed phases (solid ice versus liquid water), explain the observed phenomenon that
what external pressures have moved mainstream medicine to accept alternative therapies? have any alternative therapies
What is the lewis structure and molecular shape around the carbons in CCl2CH2 as predicted by the VSEPR theory?
What is the wavelengths associated with an electron moving at 1.5x10^8 cm/s and a 60g tennis ball moving 1500 cm/s. Which particle has a longer wavelength
find the temperature and the pressure of a gas inside the cylinder.1. a gas at 71degc occupies a volume of 0.67 l. at
consider the location of the amino acid side chains and types of repeating interactions in both an alpha helices and
Determine the limiting reactant and the numbers of moles of Cu will be formed If you place .092 mol of iron filling in a solution containing .158 mol of Copper sulphate,?
DNA is thought to be the chemical compound responsible for the process of heredity. A sample of DNA was found to have density 1.10 g/cm^3 and its molecular weight was estimated to be 3.04 x 10^8 g. What is the average volume occupied by one DNA mo..
how could you determine whether a white powder was zinc sulfide or sodium carbonate using a hydrochloric acid solution?
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