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Microwave ovens emit microwave energy with a wavelength of 12.6 cm. What is the energy of exactly one photon of this microwave radiation
Draw formulas that illustrate the hydrogen bonding that may exist between two polyamide molecules after fibers have been cold drawn. In this lab,
What are some of the differences between water obtained from a river that flows past farmland and water obtained five miles
The crude copper that is subjected to electrorefining contains tellurium as an impurity. The standard reduction potential between tellurium and its lowest common oxidation state, Te^4+, is Te^4+(aq)+4e-=> Te(s) E°red= 0.57V
Calculate the vapor pressure of a solution of 20 g of benzene (C6H6) and 20 g of toluene (C7H8) at 90 oC
the Ras and MAP kinase pathway starts with the binding of a growth factor to a receptor. as a result, all of the following occur EXCEPT
A polarization potential arises from a concentration difference between ions in the neighborhood of the electrode and those in the bulk of the electrolyte solution. Calculate the polarization potential in a copper electro-refining cell given the f..
What mass of zinc oxide can be produced from the reaction of 415 g zinc sulfide with 265 g of oxygen gas? The other product is sulfur dioxide.
Then 40.0 mL of this solution were titrated with 0.060 M HClO4. Calculate the pH at the first equivalence point.
A sample of an unknown metal has a mass of 35.4 and a volume of 3.11 . Whats the Density?
5H2C2O4(aq) + 2KMnO4(aq) + 3H2SO4(aq) ---> 10CO2(g) + 2MnSO4(aq) + K2SO4(aq) + 8H2O(l). What is the concentraton of KMnO4 solution if 22.35mL reacts with 0.5170g of oxalic acid.
At what temperature is the change in entropy for the reaction equal to the change in entropy for the surroundings?
a quantity of water is heated from 25.0 C to 36.4 C by absorbing 325 joules. what is the mass of the water?
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