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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?
A sample of 6.022 g of CH4 is enclosed in a 12 L container at 402 K. What is its pressure in atmospheres
The mass percent of an element in a compound is the mass of the element (total mass of the element's atoms in the compound) divided by the mass of the compound
What is the pH of a solution of 0.050M formic acid(HCO2H, Ka=1.8*10^-4) and 0.035M sodium formate
Calculate the percent yield of 1.0 grams of salicylic acid obtained from the hydrolysis of 1.3 mL of methyl salicylate.
What is the problem of attempting an Adols condensation using different aldehydes
Dry ice is solid carbon dioxide. A 1.87g sample of dry ice is placed in an evacuated 4.03 L vessel at 22 degrees C. Calculate the pressure inside the vessel after all the dry ice has been converted to CO2 gas
Alloxanic acid(C4H4N2O5,6.40g,),sodium alloxanate(5.46g) were dissolved in 250.0mL of water. Calculate moles of alloxanic acid dissolved.
This solution was back-titrated with a 0.0370 M Ga3 solution until all the EDTA reacted, requiring 11.0 mL of the Ga3 solution. What was the original concentration of the V3 solution?
Draw the mechanism that illustrates the conversion of 2-chloro-2-methylbutane to 2-methyl-2-butyl isopropyl ether with 2-propanol as the nucleophile.
a student carried out the experiment but did not follow the directions exacly as written. What effect would the following actions have on the experiment ?
You determine that the freezing point of a solution consisting of 20.0 g of cyclohexane and an unknown amount of naphthalene has a freezing point depression of 3.30 degrees C. How much naphthalene was added to the cyclohexane
what is the redox number for nitrogen in a molecule of nitrogen dioxide and iron
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