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use standard reduction potentials to find the equilibrium constant for the following reaction at 25 degrees C. MnO4-(aq) + 8H+(aq) + 5Fe2+(aq) = Mn2+(aq) + 4H2O(l) + 5Fe3+(aq)
what is used to measure volumes of liquid accurately? what is used to hold a stem funnel in filtration or a crucible and cover?
Photosynthesis is estimated to produce 330.0 g (dry weight) of plant matter per square meter, 50% of which is carbon. Calculate the total number of grams of carbon "fixed" each year by 1000 square meters.
Construct the MO diagram for Cr(CO)5, considering only s donation from the CO ligands. Clearly label all atomic and molecular orbitals. Put in the correct number of electrons. What is the bond order? Is this consistent with the structure?
We often hear the terms organic, natural, and chemical in the media. Organic and natural are usually used to imply that a product is "healthy" and/or "environmentally friendly" while chemical often implies negative implications for health and for ..
Calculate the freezing point of a 2 molal solution of a nonelectrolyte glucose. feezing point constant for water being 1.86 C/molal
A 0.7549g sample of a pure hydrocarbon burns in oxygen gas to produce 1.9061g of carbon dioxide and 0.3370g of water.
A 250 g yo-yo is swung on the end of a50 cm string at a constant speed of 4 m/s. What is the centripetal force acting on the yo-yo?
Research the number of electrons that can fit into energy levels higher than the third level. Why does that explain why there is a space in the lower periods of the periodic table?
If 22 mL of 5.6 Molarity was spilled, what is the minimum mass of that must be added to the spill to neutralize the acid?
a helium-filled weather balloon is launched from the ground where the pressure is 752 mmHg and the temperature is 21 degrees celsius. under these conditions its volume is 75.0 L.
What is the value of work (w) when a piston of volume 0.2 L expands against an external pressure of 200 kPa to a volume of 3.4 L?
Calculate the change in pH when 5.00 mL of .100 M HCL is added to 100 mL of a buffer solution
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