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Calculate the molar concentration of OH- ions in a 0.540 M solution of hypobromite ion (BrO^ -\K_b = 4.0* 10^- 6.)
BrO- + H2O <----> HBrO + OH-4 x 10^-6 = x^2 / 0.525-xx = [OH-]= 0.00145 M
A mixture of 2.00 moles of H2, 3.00 moles of MH3, 4.00 moles of CO2, and 5.00 moles of N2 exert a total pressure of 350kPa. What is the partial pressure of each gas?
How can you tell when looking at organic compounds what is saturated? Here are some examples?
Osmium has a density of 22.6 g/cm3. What volume would be occupied by a 21.8 g sample of osmium?
The water level in a graduated cylinder initially at 210 mL rises to 277 mL after a piece of lead is submerged. What is the mass in grams of the lead?
the gas sample weighs 2.62grams then computes the molecular weight and determines the identity of the gas.
What is the theoretical yield when 0.040 g benzophenone is added to 1 mL methyl alcohol?
convert back to molarity. And since it is a strong acid, you would just take the -log(KOH or OH-) then subtract this number from 14. From this I get 11.85, however the answer is 10.98. Can somebody tell me where I'm going wrong in detail?
25.0 ml of a 0.2450 M NH4Cl solution is added to 55.5ml of 0.1655 M FeCl3. What is H concentration of chloride ion in the final solution.
Metallic aluminum reacts with MnO_2 at elevated temperatures to form manganese metal and aluminum oxide. A mixture of the two reactants is 67.2% mole percent Al.
A reverse osmosis unit is used to obtain drinkable water from a source that contains 0.740 g NaCl per liter. What is the minimum pressure (in torr) that must be applied across the semipermeable membrane
If the sign for delta G is negative (spontaneous process) and the sign for delta S is positive (more disorder) for both dissolving processes, how could one be endothermic (positive delta H) and one be exothermic
What mass (in grams) of this substance must evaporate to freeze 200g of water initially at 15 degrees C? (The heat of fusion of water is 334 J/g; the specific heat of water is 4.18 J/g-K.)
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