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Problem- Copper reacts with any oxygen present as an impurity in the ethylene used to make polyethylene. The copper is regenerated when hot H2 reduces the copper(II) oxide, forming the pure metal and H2O. The volume of H2 at 765 Torr and 225 oC needed to reduce 35.5 g of copper(II) oxide is L.
By means of textbook reference solve the reactions given in above problem
write the chemical equation for the reaction that occurs when you add NaOH solution to a CH3CO2H/NaCH3CO2 buffer solution
Presuming that no heat is lost to the cup or the surroundings, explain what will the final temperature of the water be. Define the specific heat capacity of iron= 0.449 J/g degree C and water = 4.18 J/g degree C.
estimate the amount of water that would have to be lost in perspiration to keep his body temperature constant. The heat of vaporization of water may be takenas 2.41kJ/g. (1lb=453.6g)
What is a meniscus? Why do some liquids develop a meniscus? How do we read the liquid level in a volumetric measuring device
Problem- Estimate the calcium concentration in a groundwater sample, which has a pH of 5.50. Assume that the groundwater at his location is saturated with CO2 at a partial pressure of 0.1 atm.
Cortisol ( M=362.47g/mol); Corisol is 69.6% C, 8.34% H, 22.1% O by mass. What are the empirical and molecular formula?
Find the molar mass of the compound. The reezing point of benzene is 5.49 degree celcius.
A reaction of one liter of chlorine gas with 3 liters of fluorine gas yields 2 liters of a gaseous product. All gas volumes are at the same temperature and pressure. What is the formula of the gaseous product?
Calculate the number of moles of NaOH in the Solution. 0.0395 moles Calculate the value (calories) for the heat of solution. -343 cal Calculate the ?Hsolution for sodium hydroxide
the system achieves thermoequilibrium at atmospheric pressure. Assume no heat loss to the surroundings. What is the final temperature of the combined metal sheets?
2 naoh h2so4 --gt 2h2o na2so4how many grams of sodium sulfate will be formed if you start with 200grams of sodium
How would the geometry of the product (isoborneol) change (OH in an endo or exo position) if all the methyl groups of camphor were replaced with H
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