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Using a band diagram, explain how magnesium can exhibit metallic behavior when its 3s band is completely full.
A sample of sodium reacts completely with 0.355 of chlorine, forming 585 of sodium chloride. What mass of sodium reacted?
A certain human gene was shown to have only 80% of its DNA sequence identical to that of an ape, but its corresponding protein sequence has 95% identity
Calculate the maximum [glucose]in/[glucose]out ratio that can be achieved by the plasma membrane Na+- Glucose antiporter of an epithelial cell when the concentration of Na+ inside the cell is 7mM
What is the entropy change for freezing 4.25 g of C2H5OH at 158.7 K? H = -4600 J/mol. Answer in units of J/K.
Instructions are given to administer 65 mg of a diuretic over 2 hours by IV. If the 500mL bag contains 300mg what flow fate (ml per ohur) would be used?
Chlorous acid, HClO2, has a dissociation constant of Ka = 1.20 * 10^(-2). Assume that you have a 0.0755 m solution of this acid and calculate the concentration of H+ cations in the solution and degree of dissociation for a solution of the acid
Show two different ways to make methyl propionate, using methanol, propionic acid and other necessary reagents The methanol and propionic acid do not have to both be used in the first step.
at 900K the following reaction has kp=.345: 2SO2(g)+O2(g)-->2SO3(g) Partial pressures of SO2 is .150 and of O2 is .455. What is the equilibrium partial pressure of SO3?
A gas occupying a volume of 1.50 L exerts a pressure of 700 mmHg at 200 degrees C. Which mathematical expression gives the correct pressure at 6.00 L and 400 degrees C?
The solution is filtered, and a 60.00mL sample titrated with HCl requires 11.13mL of 9.78×10?2 M HCl to reach the end point. Calculate Ksp for Ca(OH)2
Using the following equation: 2AgNO3+MgBr2->2AgBr+Mg(NO3)2 calculate the moles of silver bromide and magnesium nitrate produced by 85 mol of magnesium bromide reacting with silver nitrate.
A student mixes four reagents together, thinking that the solution will neutralize each other. The solutions mixed together are 53.6 mL of 0.129 M hydrochloric acid, 104.1 mL of 0.215 M of nitric acid, 501.5 mL of 0.0126 M calcium hydroxide
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