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Using a solution having Pb2+ ions 1x10-2 M that is mixed to a solution of I- ions of 2 x 10-4M. Show whether or not a precipitate will form if The Ksp of PbI2 =9.8×10-9
Lead (II) nitrate and Sodium fluoride both are soluble in H2O. If 0.232 grams of Pb(NO3)2 and 1.13 grams of NaF are dissolved in sufficient H2O to make one Litre of solution, will a precipitate form now you just need to determine how do you know if there must be a precipitate or not?
Calculate the pH of each of the following buffered solutions. to 1.00 L of each of the four solutions. (a) 0.100 M propanoic acid (HC3H5O2, Ka= 1.3 10-5) (b) 0.100 M sodium propanoate (NaC3H5O2)
If C 6 H 12 O 6 yields C 2 H 5 OH+CO 2 then balance this equation and determine what the percent yield for the reaction is if 575.0 grams of C 6 H 12 O 6 glucose yields 126.4mL of C 2 H 5 OH ethanol?
A benzylic carbocation is generated under the conditions of part A. would the presence of a para CH3O- group on the benzene ring
For a protein with a molar mass of 1 x10 6 u calculate the molar concentration required to obtain an osmotic pressure of 10 matm at 25 degrees C
A 3.00-L flask is filled with gaseous ammonia,NH3 . The gas pressure measured at 20.0 deg C is 2.05 atm . Assuming ideal gas behavior, how many grams of ammonia are in the flask?
If 3.65 mL of vinegar needs 41.5 mL of 0.150 M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.20 qt sample of this vinegar
A 30.5 g sample of an alloy at 91.8°C is placed into 50.5 g water at 22.1°C in an insulated coffee cup. The heat capacity of the coffee cup (without the water) is 9.2 J/K.
Why is anhydrous sodium sulfate added to the organic solution remaining after the extractions with 6M NaOH
Which of the following reactions is the formation reaction for CH3OH(l)
Why are unsaturated carbonyl compounds UV activte but saturated esters and ketones are not UV active
calculate the moles of CO2 you would theoretically expect from 0.203 grams of an alka-seltzer tablet at 700. torr and 285. K.
If 3.98 g of copper was recovered and you started with 9.10 g of copper (II) chloride, then what is the percent yield of the reaction ?
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