Suppose hydrogen sulfide is added to a solution that is 0.10 m in cu2+, pb2+, and ni2+ such that the concentration of h2s is 0.10 m. when the ph of the solution is adjusted to 1.00, a precipitate forms. what is the composition of the precipitate? h2s(aq) + 2h2o(l) 2h3o+(aq) + s2–(aq); kc = 1.1 × 10–20 salt ksp cus 6.0 × 10–36 pbs 2.5 × 10–27 nis 3.0 × 10–19
a. nis only
b. cus, pbs, and nis
c. cus and pbs
d. cus only
e. pbs and nis
Answers: 1
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4786 joules of heat are transferred to a 89.0 gramsample of an unknown material, with an initialtemperature of 23.0°c. what is the specific heat of thematerialif the final temperature is 89.5 °c?
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Suppose hydrogen sulfide is added to a solution that is 0.10 m in cu2+, pb2+, and ni2+ such that the...
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