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What is the ph at the equivalence point for the titration of .20M nitrous acid by .20M sodium hydroxide? (Ka for nitrous acid 4.5*e-4)
it decomposes into CO gas and Cl2 gas. If 12.5g of COCl2 is initially placed in a 2.20L container at 575K, calculate the concentration of CO at equilibrium. Kc= 2.50 * 10^-3 at 575K.
For the gas-phase reaction 2 NO2 + F2 → 2NO2F, the rate constant k is 38 M-1s-1 at 27° C. The reaction is first order in NO2 and first order in F2.
What is the structure for the indole that would be obtained from the phenylhydrazone
What is the reduction half-reaction for the following overall cell reaction? Pb 2+(aq) + 2 Ag(s) ? Pb(s) + 2 Ag+(aq) Choose one: Pb 2+(aq) + 2 e- ? Pb(s) Ag(s) + e- ? Ag+(aq) Pb 2+(aq) + e- ? Pb(s) Ag+(aq) + e- ? Ag(s)
Beginning with 2.5g of manganese(ii) chloride and 6.991g of sodium acetate in 100mL of water, add 11mL of acetylacetone to get phase 2 system, next add 0.491g of potassium permanganatee to 25ml of water and them added to the previous solution. Fin..
If 355 mL of hydrogen gas is collected over water at 25C at a total pressure of 751 mmHg, how many grams of Zn reacted?
if 450 ml of some pbno32 solution is mixed with 600 ml of 3.70 x 10-2 m nacl solution what is the maximum concentration
A "little more" than 5 mL of a saturated solution of borax is transferred to the corresponding calibrated test tube and subsequently titrated with the standardized hydrochloric acid solution.
If the volumes of reagents indicated were combined and 219 seconds elapse before the color appears, calculate the rate of reaction in M/s.
pottassium bromide kbr is soluble in the extent of 64 g per 100 g of h2o at 20 degree c. is the solution saturated or
A chemist burns 160 g of aluminum in oxygen to produce aluminum oxide. She produces 260 g of aluminum oxide. Write a balanced equation and calculate the theoretical yield and percent yield.
calculate the equilibrium pressure of N2O4(g) and NO2(g). (c) What percentage (by moles) of the original N2O4(g) is dissociated at the new equilibrium position (total pressure = 1.00 atm)?
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