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How many milliliters of 0.200 M FeCl3 are needed to react with an excess of Na2S to produce 1.38 g of Fe2S3 if the percent yield for the reaction is 65.0%? 3 Na2S(aq) + 2 FeCl3(aq) ? Fe2S3(s) + 6 NaCl(aq)
An 85.0g sample of iron requires 954 J of heat to raise its temperature 25.0C. What is the specific heat of the iron?
A 0.7549g sample of a pure hydrocarbon burns in oxygen gas to produce 1.9061g of carbon dioxide and 0.3370g of water.
KOH are diluted to 1L to give the same species produced by Al(OH)3. Write mass balance equations for aluminum and potassium.
To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. A chemical engineer places a mixture of noble gases consisting
if the pressure inside of the eudiometer is equalized to barometric pressure (0.987 atm), what is the pressure of the oxygen gas in the eudiometer?
Make a rough calculation of the amount of CO2 exhaled by a person in day. With this, and assuming a space crew of five, how much LiOH must be taken in a seven day mission? Take into consideration a safety factor of 200%.
If 30.0 L of oxygen gas is cooled from 473 K to 274 K at constant pressure, what is the new volume of oxygen
The initial temperature of the water was 25.4 C and the final temperature of both the water and metal was 36.6 C. If the specific heat "c"
report the total heat needed and the heat needed for each individual step in the process.
Chemical Structure and Hydrogen Bonds in Base Pairs, Draw the chemical structure of a correctly base paired G-C pair, then re-draw the pair with a propeller twist these answers should all be on one page following box G.
Using as sample of gas of 12.0 moles are in a tank of 8.00 Litres at the temperature of 22.6 degree celsius. compute the difference in pressure between CH 4 and an ideal gas under these conditions
Because HCl and NaOH are a strong acid and base respectively, they dissociate completely and the pH of the solution is dependent only on the excess acid or base in the beaker at that point in the titration.
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