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The concentration of copper(II) sulfate in one brand of soluble plant fertilizer is 0.070% by weight. If a 15.0 g sample of this fertilizer is dissolved in 2.0 L of solution, what is the molar concentration of Cu^(2+)?
If the partial pressure of oxygen drops below 100 , passengers become drowsy. If this happens, oxygen masks are released. What is the total cabin pressure at which oxygen masks are dropped?
What is the pH of the solution at the cathode if E^o cell = -0.362V for the following electrochemical cell at 25 degrees C? Pt | Hw(g,1.0 atm) | H+(aq, 1.00M) || H+(aq) | H2(g,1.0atm) | Pt
List and describe briefly the 2 methods which are used by drug companies to discover lead compounds
a 2.0 liter flask was filled with 4.00 mole nh3 g and heateduntil the nh3 g partially decomposes. after equilibrium
a concentration of 8.00 x 102 ppm by volume of carbon monoxide is considered lethal to humans. calculate the volume in
Draw a Lewis structure for SO2 in which all atoms obey the octet rule. Show formal charges. 2 Draw a Lewis structure for SO2 in which all atoms have a formal charge of zero. Explicitly showing the zero charges is optional.
a saturated solution was formed when 4.40times10-2 l of argon at a pressure of 1.0 atm and temperature of 25 degrees c
Write a reaction mechanism for the dehydration of 4,5-dimethyl-3-hexanol in concentrated phosphoric acid. Use curved arrows to show electron movement and clearly show the major product formed.
If 50.0mL of ethanol(density=.789g/mL ) initially at 7.0 Celcius is mixed with 50.0mL of water(density=1.0g/mL) initially at 28.5 celcius in an insulated beaker, and assuming that no heat is lost, what is the final temperature(celcius) of the mixt..
For the reaction Cl2 + 2KBr -> 2KCl + Br2, calculate the percentage yield if 200 g of chlorine react with excess potassium bromide to produce 410 g of bromine
A 0.250 mol sample of argon gas has a volume of 9.00 L at a pressure of 875 mm Hg. What is the temperature (in celsius) of the gas?
If I add 90.0ml of distilled water to 10.0mL of 1.00M of HCl, what would the hydronium ion concentration be? What about the pH?
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