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Problem- When a sample of H2S gas produced according to the equation was collected over water at 25 oC the pressure of gas above the water was 0.997 atm and its volume was 6380 mL. Calculate the mass (g) of Fe2S3 that reacted. Be sure to consider the vapor pressure of the water.
Fe2S3(s) + 6HCl(aq) ---> 3H2S(g) + 2FeCl3(aq)
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Consider the titration of 43.2mL of .240M HF with .220M NaOH. Calculate the pH at halfway to the equivalence point. Ka = 3.5 * 10^4
Confirm whether an acid base reaction occurred stoichiometrically. The concentration of concentrated nitric acid is 15.8 M. For full credit show all calculations
A sucrose (C12H22O11) solution that is 45.0% sucrose by mass has a density of 1.203 g/mL at 25 C. Calculate its: a. molarity b. molality c.vapor pressure (vp H2O at 25 C=23.76 mm Hg) d.normal boiling point
if the inert gas argon gas in a steel cylinder is at a pressure of 9732.0 mmhg what is the pressure of the argon gas in
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If the sun is a distance of 1.5 x 108 km from Earth, how many minutes does it take sunlight to reach earth if light travels at 186,000 miles each second
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Show the mechanism for the preparation of 1-bromobutane from 1-bromobutanol reacting with NaBr and sulfuric acid. an sn2 mechanism and one step.
i am working on polymer blends. the components of blend are a homopolymer and its copolymer. i am investigating their
A hypersaline solution with a molality of 4.53m has a salt content so high that the mass of the solution per 1000 grams of water is 1265g. calculate the molarity
Multiple choice questions in nuclear chemistry - which equation represents the balanced nuclear equation
The mole fraction of A in the vapor is found to be 0.67. What is the mole fraction of A in the solution?
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