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What is the pH of the buffer described in the above question? The formic acid (HCHO2) concentration is 0.75 M. the sodium formate (NaCHO2) concentration is 0.75 M, and the pKa of formic acid is 3.74
A sealed container holds 1.00 mole of helium and 2.00 moles of nitrogen at 30.0°C. When the total pressure of the mixture is 666 mm Hg, what is the partial pressure of the nitrogen? Provide an answer correct to 2 significant figures in mmHg.
a gasous mixture of oxygen and nitrogen contains 32.8% nitrogen by mass. what is the partial pressure of oxygen in the mixture if the total pressure is 405mmHG?
Calculate the number of carbon atoms in 4.56 grams of ethanol (CH3CH2OH).
suggest a procedure you could follow to determine whether it was necessary to use this solution as a reference or whether distilled water would have been just as satifactory
A compound is constituted by mass of 52.1% carbon and 13.1% hydrogen, the rest being oxygen. Given that a volume of 5.33 L of this gas has a mass of 11.5 g at 13 °C and 110 kPa, find the molecular formula for this compound.
Calculate the standard reduction potential for the reaction for the reaction Cu(III) to Cu(II).
During the course of an experiment, a 0.300 M NaCl solution with an initial volume of 25.0 ml is diluted to a total final volume of 26.0 ml. What is the concentration of NaCl in the final solution?
Using condensed electron configurations and Lewis electron-dot symbols to depict the monatomic ions formed from each of the following reactants, predict the formula of the compound the ions produce. N and Mg
Based on the structure and boiling point(176-177C) of Eucalytol. what aspects of this molecule allow it to separate from hexane? And which of the following temperature option of is best for separating eucalytus oil and why?
A green leaf has a surface area of 2.10 cm^2. If solar radiation is 1150 W/m^2, how many photons strike the leaf every second? Assume three significant figures and an average wavelength of 504 nm for solar radiation.
write a plausible equation to interpret, at the atomic level, what you observed in the reaction of lysol toilet bowl cleaner with .1M AgNo3
A hydrated form of copper sulfate (CuSO4·x H2O) is heated to drive off all the water. If we start with 9.47 g of hydrated salt and have 5.29 g of anhydrous CuSO4
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