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A certain medal hydroxide M(OH)2, contains 32.8% oxygen by mass . What is the identity of the metal M?
A particular solution has a hydrogen ion concentration of 2.13 x 10-13 M. What is the pH of this solution?
what is the broglie wavelength of an electron moving at one-tenth the speed of light. mass of the electron 9.109
Calculate the concentration of Na+ ions (in mol/L) for each of the following. a) A 41.0 mL sample of 2.0 M Na3PO4 which has been diluted to 300.0 mL b) 8.50 g Na2CO3•5H2O(s) is made up in a total volume of 3.50 L
Considering the reaction: SO2Cl2(g) --> SO2(g) +Cl2(g) Kp=2.91 and temp = 298k. the partial pressure of SO2 is 137 torr and the partial pressure of Cl2 IS 285 torr. What is partial pressure of SO2Cl2?
The concentration of Pb2+ in a commercially available standard solution is 1.000 mg/mL. What volume of this solution should be diluted to 6.0 x 10^2 mL to produce a solution in which the concentation of Pb2+ is 0.0505 mg/L
For weak acid, HX, Ka = 1.0 10^-6. Calculate the pH of a 0.82 M solution of HX.
An experiment requires 44.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
Why did the book suggest using a Hirsch funnel? What would be the benefit of using a Hirsch funnel?
Determine the second order rate constant from the initial concentration and half life and what is the second order rate constant?
One mole of N2, one mole of O2, and 0.5 mol of H2 are at 25 oC and 1 atm. The final total pressure of the mixture is 1 atm. Calculate delta_S on forming the mixture.
At 1000 K the equilibrium constant for the reaction Br2 (g) === 2 Br (g) is 2.8 x 104 (pressure is in atmospheres). What does G for the reaction. Assume that the bond energy of Br2 does not change between 298 K and 1000 K and calculate S for the r..
Hydrogen and oxygen react under a specific set of conditions to produce water according to the following equation. 2 H2(g) + O2(g) -> 2 H2O(g)
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