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A 20mL volume of previously boiled, deionized water is added to the conical flask to prepare the sample for titration. Explain why this volume is not critical to the analysis.
2 NaClO3 2 -> NaCl + 3 O2 Determine the number of moles of O2 produced by the decomposition of 639 g of NaClO3.
how many moles og Agcl are produced when 100.0mL of 358 M silver nitrate and 50.0mL of .716 M sodium chlroide are mixed?
One of the students in lab decided to use two fractionating columns (one on top of the other) instead of just one. How would this a) affect the separation between hexane and heptane?
A drop of NaOH titrant adheres to the side of the buret between the initial and final readings for the titration.As a result of the `clean glass`error, will the molar concentration of the NaOH solution be reported as too high or too low
What is the pH of a solution made by mixing 25.00mL of 0.200M CH3COOH with 10.00mL of 0.200M NaOH? Ka of acetic acid is 1.8 x 10^-5.
what nucleophile could be used to react with butyl iodide to prepare the following compound? if your answer is a metal
Given a waste stream with 25 mg/liter of NaOH flowing at 20 meters cubed per day, determine the quantities (in kg/day) of sulfuric acid required to neutralize the waste. Estimate the total dissolved solids after neutralization.
Assuming that the gas becomes saturated with benzene vapor and that the total gas volume and temperature remain constant, what is the vapor pressure of the benzene in torr
How do you arrange PV=nRT to give equation relating pressure to concentration and use it to modify Beer's Law to apply to gas pressure? Write a formula that relates absorbance to gas pressure.
What is the equilibrium constant for the acid-base reaction between ammonia and acetic acid
arrange the elements in order of decreasing first ionization energy.elementradiuselement x 107element y 198element z
Analysis of water in a sediment sample at equilibrium at ph 7.00 showed [so42-] = 2.00 x 10^-5 m and a partial pressure of h2s of 0.100 atm. show with appropriate calculations if methane, ch4, would be expected in the sediment.
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