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Diet cola drinks have a pH of about 3.0, while milk has a pH of about 7.0. How many times greater is the H3O+ concentration in diet cola than in milk?
A solution of 75.0 of benzene and 75.0 of toluene has a total vapor pressure of 80.9 at 303 . Another solution of 100.0 benzene and 50.0 toluene has a total vapor pressure of 93.9 at this temperature.
if you dissolve the weighed mass of zinc in water which had not been deionized, how would the volume of EDTA required to reach the indicator end-point
What is the wavelength of light required to induce a transition from the ground state to the first excited state?
What is the pH of a buffer prepared by adding 0.708mol of the weak acid HA to 0.609mol of NaA in 2.00 L of solution? The dissociation constant Ka of HA is 5.66×10?7.
a sample of 0.600 moles of metal M reacts completely with excess of flourine to form 46.8g of MF2. How many moles of F are present in sample of MF2 that forms?
1.0 atm pressure of oxygen is 0.041g/L. The solubility of oxygen in water at 3.0 atm and 25 C is _____ g/L.
Four different amino acids can be combined in different sequences to form how many different tetrapeptides?
Lindane, a powerful insecticide, is a member of this group. The molar mass of lindane is 290.8. How many atoms of carbon does a molecule of lindane contain
Standard reduction potentials for the Pb2+/Pb and Cd2+/Cd half-reactions are -0.13 and -0.40, respectively. At what relative concentrations of Pb2+ and Cd2+
You dissolve 261 mmol of sodium bicarbonate into a total volume of 1.2 L. What is the molarity of sodium bicarbonate in this solution?
What current is required to produce 91.6 g of chromium metal from chromium(VI) oxide in 12.4 hours?
consider the following mixtures. in each case either calculate the pH if the resulting solution is a buffer solution or state why the solution does
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