Why are Ca2+ salts generally insoluble compared to Group IA and ammonium salts?
Why are Ca2+ salts generally insoluble compared to Group IA and ammonium salts?
"Hard" water contains mainly salts of Ca2+ and Mg2+, both of which form many insoluble salts. You have a water sample and need to determine whether it contains Ca2+ and/or Mg2+. When you add ammonia to the solution, followed by ammonium chloride and ammonium oxalate, a white precipitate of CaC2O4 should form if Ca2+ is present. What is the purpose of adding the ammonium chloride to the reactant mixture? a. The chloride ion helps to form the calcium chloride precipitate....
Question 5.20 Homework - Unanswered Use the rules in this table to match the insoluble product formed in each reaction. Salts With These lons Are Generally Soluble Exceptions Lit, Na, K, NHA none NO3; CH3CO2 none Salts with Pb2+, Agt are insoluble. Cl, Br, SO, Salts with Ba2+, Pb2+, Ca2+, Agare insoluble. Salts with these ions are generally insoluble: Exceptions HO and S2 Salts with Lit, Na, K, NHaare soluble. HO salts with Ba2+, Ca2+ are slightly soluble. S2 salts...
Page 157 IONIC AND NET IONIC EQUATIONS Some Solubility Rules: (a) Group 1A, ammonium, acetate, and nitrate compounds are soluble. (b) Chloride, bromide, and iodide compounds are soluble except silver, lead(II) and mercury(1). (c) Carbonates and phosphates are insoluble except for Group IA and ammonium compounds. (d) Hydroxides are usually insoluble except for Group IA, strontium, barium and ammonium compounds. (e) Sulfides are usually insoluble. Some exceptions are Group IA and ammonium compounds Use the solubility rules given above and...
Why does the addition of HCl dissolve such insoluble salts as BaCrO4 and CaC2O4?
HELP DETERMINING POSSIBLE SALTS FROM DATA CONCLUSION. Possible salts: Ammonium nitrate, ammonium sulfate, sodium nitrate, potassium sulfide and barium nitrate. Data: The sample completely dissolves in water and is divided into 3 parts. 1. Adding silver nitrate solution results in a black precipitate that is insoluble in NH3. 2. Heating the sample after adding sodium hydroxide produces a gas with the odor of ammonia and which turns litmus paper blue. 3. Adding sodium sulfate solution results in a white precipitate....
why do molecular salts, (NaCl) for example, have broader bands of spectra compared to a simple atomic spectra like hydrogen??
For each of the salts on the left, match the salts on the right that can be compared directly, using Ksp values, to estimate solubilities. (If more than one salt on the right can be directly compared, include all the relevant salts by writing your answer as a string of characters without punctuation, e.g, ABC.) 1. silver bromide 2. copper(II) hydroxide A. MgCO3 B. Ag2SO4 C. Ag2SO3 D. NIS Write the expression for K in terms of the solubility, s,...
Lab 9 Emission Analysis of Aqueous Solutions of Group IA and lIA Metal Salts Emion Analysis of Aqus Seltions of Gros A and BA Metal Salts 3. Identify the metal ions present in each of the following water sample emission spectra. Use the data in the Table in Question 2 to assist you in identifying the metal ions present in each spectrum Water Sample 1 75 nm and 771 m 672 nm 3900 603 nm 2900 554 pm 1900 900...
Compared to experimental values, are the CIS excitation energies generally overestimated or underestimated? Explain why.. Taking the ground state of beryllium atom as an example, give an example of singly, doubly, triply and quadruply excited determinants. Within correlated methods, which type of excitations is the most important? Explain why single excitations are usually unimportant.
Why is –OH group of salicylic acid actively involved compared to –COOH group during formation of aspirin?