How can you separate ??42− and ??43− anions, when both are present in the same solution?
How can you separate ??42− and ??43− anions, when both are present in the same solution?
(Anions) a student added barium ion, Ba2+ to an aqueous solution and observed the formation of a precipitate. The subsequent addition of nitric acid, HNO3, had no effect on the precipitate. What anion was present in the original solution? Explain how you made your determination
You have a solution with Nat (aq), OH (aq), CO32- (aq), and PO43-(aq) in the same container. You have three different solutions available to you: solution A: Ba2+ (aq) and NO3- (aq) solution B: Cu2+ (aq) and NO3(aq) solution C: NH4+ (aq) and NO3- (aq) a. If you add solution A to your mixture, which anion or anions (OH, CO32- or PO43.) would Ba2+ precipitate? Which anion would Ba2+ have no effect on? b. If you add solution B to...
When an ionic compound dissolves in water, the cations and anions are separated. Ions in solution will result in that solution conducting electricity, an electrolyte. Some solutions are strong electrolytes while others are weak electrolytes. 1. What do you think is giving rise to electrical conductivity? ions in a crystal 2. This is a diagram showing ions in a crystal. Draw a diagram showing the particles in 1) strong electrolyte, and 2) weak electrolyte. Pay attention to how the water...
You and your brother both leave your house at the same instant and drive in separate cars along a straight highway to a nearby lake. After 10 min, you are both 3.0 km from your house. You are now driving at 80 km/h , and you continue at this constant speed; your brother is going faster than this. After another 18 min , your brother arrives at the lake, but you are still 8.0 km away. Part A) How far...
Ka of HNO2 is 4.0*10^-4 Can you work out 42 and 44 for me. Along with explanation. 42. What volumes of 0.50 M HNO, and 0.50 M NaNO, must be mixed to prepare 1.00 L of a solution buffered at pH = 3.55?! 43. Consider a solution that contains both CsHSN and CsH5NHNO3. Calculate the ratio [CSH N]/[CsH NH+] if the solution has the following pH values: a. pH = 4.50 2101 c. pH = 5.23 olo lo dorato b....
2. Suppose you did two separate trials with the same mass on both the cart and the hanger, but the software reported different values for b. Should one of the runs be rejected? (a) The one with the larger value of b should be rejected. (b) The one with the smaller value of b should be rejected. (c) Neither should be rejected, the value of b has no effect on our results. Applying Newton's second law to a setup like...
You and your brother both leave your house at the same instant and drive in separate cars along a straight highway to a nearby lake. After 10 min, you are both 3.0 km from your house. You are now driving at 100 km/h , and you continue at this constant speed; your brother is going faster than this. After another 20 min , your brother arrives at the lake, but you are still 7.0 km away.How far is it from...
Solubility Product Ksp for Ca(OH)2 is determined in two separate experiments, both at the same temperature. - by titration of hydroxide in a simple saturated solution of Ca(OH)2. - by titration of hydroxide in a 0.01 M CaCl2 solution saturated with Ca(OH)2. Identify which of the following statements is either completely "True" or at least partially "False" (assuming that the activity of each ion is equal to its molar concentration in each instance): a) True False You would expect the value...
Can there be both dispersion force and dipole-dipole force present? How is it possible?
Both excess light and photorespiration present challenges to plants. How can these be overcome?