Bobby and Jane dissolve 13.4 g of solid potassium iodide in water, then pour the solution into an excess of concentrated lead (II) nitrate. Jane carefully filters the resulting yellow precipitate from the solution and dries the solid overnight. The following day, Bobby finds the mass of the precipitate (which he knows to be pbl) to be 17.4 g. What is the percent yield of Bobby and Jane's reaction? 2KI + Pb(NO3)2 -- 2KNO3 + Pbl2
Answers: 2
Chemistry, 22.06.2019 03:00
Select all that apply. a beta particle: is electromagnetic energy is an electron has zero charge is emitted from the nucleus has a +2 charge has a -1 charge
Answers: 1
Chemistry, 22.06.2019 05:30
Which of the following signs of a chemical reaction are observed in the reaction of potassium with water? precipitate formed temperature change smell produced gas produced color change
Answers: 2
Chemistry, 22.06.2019 13:50
Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.
Answers: 1
Bobby and Jane dissolve 13.4 g of solid potassium iodide in water, then pour the solution into an ex...
Mathematics, 18.10.2019 21:30
Biology, 18.10.2019 21:30
History, 18.10.2019 21:30
Business, 18.10.2019 21:30