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An aqueous solution contains 0.034 M Br- and 0.079 M I-. A…
An aqueous solution contains 0.034 M Br- and 0.079 M I-. A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb+2 , which can form ppts of PbBr2 (s) and PbI2(s) . Which of the following is entirely correct?a. I- precipitates first when = 3.4 x 10-7 M b. Br-precipitates first when = 1.4 x 10-4 M c. I- precipitates first when = 1.1 x 10-7 M d. Br-precipitates first when = 4.0 x 10-3 M e. I-precipitates first when = 1.3 x 10-6 M
An aqueous solution contains 0.034 M Br- and 0.079 M I-. A…
Questions
An аqueоus sоlutiоn contаins 0.034 M Br- аnd 0.079 M I-. A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb+2 , which can form ppts of PbBr2 (s) [Ksp = 4.6 x 10-6] and PbI2(s) [Ksp= 8.4 x 10-9]. Which of the following is entirely correct?a. I- precipitates first when [Pb2+] = 3.4 x 10-7 M b. Br-precipitates first when [Pb2+] = 1.4 x 10-4 M c. I- precipitates first when [Pb2+] = 1.1 x 10-7 M d. Br-precipitates first when [Pb2+] = 4.0 x 10-3 M e. I-precipitates first when [Pb2+] = 1.3 x 10-6 M
An аqueоus sоlutiоn contаins 0.034 M Br- аnd 0.079 M I-. A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb+2 , which can form ppts of PbBr2 (s) [Ksp = 4.6 x 10-6] and PbI2(s) [Ksp= 8.4 x 10-9]. Which of the following is entirely correct?a. I- precipitates first when [Pb2+] = 3.4 x 10-7 M b. Br-precipitates first when [Pb2+] = 1.4 x 10-4 M c. I- precipitates first when [Pb2+] = 1.1 x 10-7 M d. Br-precipitates first when [Pb2+] = 4.0 x 10-3 M e. I-precipitates first when [Pb2+] = 1.3 x 10-6 M
An аqueоus sоlutiоn contаins 0.034 M Br- аnd 0.079 M I-. A chemist wishes to do a fractional precipitation experiment in which he slowly adds Pb+2 , which can form ppts of PbBr2 (s) [Ksp = 4.6 x 10-6] and PbI2(s) [Ksp= 8.4 x 10-9]. Which of the following is entirely correct?a. I- precipitates first when [Pb2+] = 3.4 x 10-7 M b. Br-precipitates first when [Pb2+] = 1.4 x 10-4 M c. I- precipitates first when [Pb2+] = 1.1 x 10-7 M d. Br-precipitates first when [Pb2+] = 4.0 x 10-3 M e. I-precipitates first when [Pb2+] = 1.3 x 10-6 M
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