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Compute the pH of a buffer solution prepared by dissolving a 0.20 mole of cyanic acid (HCNO) as well as 0.80 mole of sodium cyanate(NaCNO) in enough water to make 1.0 liter of solution Ka(HCNO)=2.0*10-4
The rate law for the reaction, 2NO(g) + O2(g) 2NO2(g), is found to be: rate of reaction = k [?NO]2?[O2?]2. The first, fast step is 2NO(g) N2O2 (g)
a student combusted 0.500g al with oxygen according to the reaction 4als3o2g2al2o3s what is the limiting reactant? how
Explain when the valve was opened and the gases are allowed to mix, explain what will be the total pressure of the gas mixture at 25C presuming the temperature was kept constant
These H+ ions are titrated with 0.10-M NaOH solution. It is found that 20.0mL of NaOH are required. a.) Explain how many moles of NaOH are used
The freezing point of benzene is 5.5oC. What is the freezing point depression of a solution of 5.00 g naphthalene (C10H8) in 444 g benzene (Kf of benzene = 4.90oC/m)?
boron has primarily two isotopes one withatomic mass of 11 amu and the other with an atomic mass of 10 amu.if the
Assuming that all of the gas in a helium tank containing 500g of He is used to fill balloons with an average volume of 2.5L of Helium, approximately how many balloons could be filled at STP
what mass of salicylic acid is needed to produce one extra strenght tablet of aspirin if the reaction has 60 yield.
What is the balanced molecular equation for the reaction. What is the balanced complete ionic equation for the reaction. What is the net ionic equation. Which ions are spectator ions
How many kilowatt-hours of electricity would be saved? b) How many 2,000-lb tons of SO2 would not be emitted. c) If the utility can sell its rights to emit SO2 at $800 per ton, how much money could the utility earn by selling the SO2 saved by a si..
The solution is cooled to 293K, where the solubility of sodium acetate is 46 grams/100 grams of water. A tiny crystal of the solid is added to the solution. Explain how much sodium acetate crystallizes
Calculate the number of coulombs required to produce 6.53 g of Hg from an aqueous solution of Hg2+
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