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A 2.18 g vitamin C tablet was melt in water. It took 28.45mL of 0.124 mol/L sodium hydroxide to neutralize the ascorbic acid in the tablet. Compute the percent (m/m) of ascorbic acid in the tablet.
a proton in a linear accelerator has a de broglie wavelength of 138 pm. what is the speed of the
How much heat energy would be needed to raise the temperature of a 15.0 g sample of iron (C = 0.448 J/goC) from 22.0 oC to 100.0 oC?
How many grams of sodium sulfate will be formed if you start with 200 grams of sodium hydroxide and you have an excess of sulfuric acid
Calculate the number of moles of KOH in 9.10mL of a 0.140M KOH solution? What is the pOH of the solution at 25 C
Two volatile liquids (A and B) form an ideal mixture at 300.0K which just begins to boil at a pressure of 0.3000 atm. The vapor pressure of pure component A is 0.5000 atm and the vapor pressure of pure component B is 0.2000 atm
A solution containing an unknown amount of X and 10.25 mM of Y was run and gave peak areas of 8.20 and 6.50 cm2 respectively. What is the concentration of X in the unknown solution? What kind of standard is Y?
In a particular solution, [Cr3+]=3.9x10-4 mol/L. What is the minimum pH at which Cr(OH)3(s) will precipitate from this solution. Assume the temperature is 25oC. For Cr(OH)3(s)
Hom much .200M KOH is required to completely neutralize
consider the dissolution of mns in water ksp 3.0 times 10-14.mnss h2ol mn2aq hs-aq oh-aqhow is the solubility of
Rank the following in order of increasing change in the boiling point of water when a solution is made: NaCl, CaCl2, NaOH, HCl. If any of these compounds will have the same effecti use an equal sign. Explain.
Draw the structure(s) of the secondary alcohols with the chemical formula C6H14O that have a 4-carbon chain.
question nitrogen and hydrogen gases react to form ammonia gas. n2g 3 h2g 2 nh3g at a certain temperature and pressure
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