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A student is given 250.0 g of sodium lactate,NaC3H5O3, and a bottle of lacticacid marked "73.0% by mass HC3H5O3, density=1.20 g/mL." How many millimeters of 73.0% lactic acid should the student add to the sodium lactate to produce a buffer with a pH of 4.50?
How much water would be needed to completely dissolve 1.66 of the gas at a pressure of 700 and a temperature of 10? Kh of gas of 0.194 M/atm.
Draw the structures of the E and Z stereoisomers of 1,4-diphenyl-2-butene-1,4-dione and label which is the cis and which is the trans
A 0.2758-g sample of a monoprotic acid neutralizes 74.0 mL of 0.07106 M KOH solution. Calculate the molar mass of the acid.
Write the net ionic equation and calculate the molar concentration of Cu2+ in the water sample if 0.0177g of solid CuS is formed.
Draw a Lewis structure for ClO2. Use formal charges. Can someone give me a good explanation on how to draw this structure in addition to using its formal charges
For the following, provide a structure of the molecules described. If the name is incorrect please provide the correct IUPAC name. 3-(1-cyclobutylethyl)-5-[3-cyclopropyl-1-(3-bromo-2-(1,1-dimethylethyl)propyl)propyl]cyclohexane.
How many moles of a metal chloride (MCl2) will dissolve in 2.0 liters of 0.050 M NaCl solution. (Ksp for MCl2 = 1.24 x 1-^-10)
138g of K and 448g of I react completely to form KI. What mass of KI would have been produced if 138g of potassium and 41g of iodine has been used?
Determine the pH at the equivalence (stoichiometric) point in the titration of 30.9 mL of 0.804 M HCOOH by 0.369 M LiOH. The Ka of HCOOH is 1.8 x 10-4.
Calculate the percentage of the principal basic component in the sample (That is, the component that is present in the largest percentage. You will need to determine which species are present and calculate the mass percent for each of them in the ..
Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5. 10-3, Ka2 = 8. 10-8, and Ka3 = 6. 10-10. Calculate [H + ], [OH ? ], [H3AsO4], [H2AsO4? ], [HAsO42- ], and [AsO43- ] in a 0.23 M arsenic acid solution.
The rate constant (k) for a reaction was measured as a function of temperature. A plot of ln k versus 1/T (in K) is linear and has a slope of -6542 K. Calculate the activation energy for the reaction.
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