Determine the equilibrium concentrations

Reference no: EM13159806

1) When a 50.0-mL solution of 0.20 M NaBr is added to 50.0 mL of 0.20 M Pb(NO3)2 solution, a precipitate of PbBr2 is formed. (a) How many grams of PbBr2 precipitate are produced? (b) Determine the equilibrium concentrations of Na+, Pb2+, Br-, and NO3- ions, respectively, in the saturated solution. (PbBr2 has Ksp = 4.6 x 10-6) 2 ) Given that: Al(OH)3(s) ? Al+(aq) + 3 OH-(aq); Ksp = 4.6 x 10-23 Mg(OH)2(s) ? Mg2+(aq) + 2 OH-(aq); Ksp = 1.8 x 10-11 Carry out a calculation that would show only Al(OH)3, but not Mg(OH)2, will form precipitate in a solution that contain 0.10 M Al3+ and 0.10 M Mg2+ if the solution is buffered at pH = 9.00.

Reference no: EM13159806

Questions Cloud

Compute how many moles of ethanol are used : Use a molar mass of 800g/mol for the vegetable oil and use a density of 0.88g/mL for vegetable oil and 0.79 g/mL for methanol to calculate how many moles of ethanol are used.

What is the formula of the hardy-weinberg rule : What is the formula of the Hardy-Weinberg Rule for a 1 locus, 2 allele system? If the frequency of "A" in a population is 70% and "a" is 30%, what arethe expected allele and genotype frequencies in the next generation?

Is it a good investment assuming equivalent annual method : Operating expenses are expected to be $2000.00 the first year and increase by $500.00 each year during the life of the equipment. Is this is a good investment assuming equivalent annual methods?

Organization in concept and practice : In some ways monitoring is easier in a partnership than a corporation, where shareholders monitor directors. In what ways is monitoring easier? In what ways is it not?

Determine the equilibrium concentrations : Carry out a calculation that would show only Al(OH)3, but not Mg(OH)2, will form precipitate in a solution that contain 0.10 M Al3+ and 0.10 M Mg2+ if the solution is buffered at pH = 9.00.

How does a germ cell become a gamete : So I know that the oocyte and the sperm are the female and male"germ cell", and that the germ cells give rise to gametes, whichfuse at fertilization. What's the process of a germ cell becomingactual "gametes"? (especially in females) Is it a matte..

Information and risk in contracts : Why does the assumption of independence of risks matter in the example of insurance? What would happen to premiums if the probabilities of houses burning were positively correlated? Can you think of a situation where they might be negatively corre..

International capital movements can bring major gains : International capital movements can bring major gains both to the lending or investing countries and to the borrowing countries, through intertemporal trade and through portfolio diversification for the lenders/investors

Write a java program that declares an array alpha of 50 : Write a Java program that declares an array alpha of 50 elements of type double. Initialize the array so that the first 25 elements are equal to the square of the index variable, and the last 25 elements are equal to three times the index variable. O..

User Account

All Pages