Specify what ions are present in solution upon dissolvingeach of the following substances in water: (a) FeCl2,(b) HNO3, (c) (NH4)2SO4, (d) Ca(OH)2.

What would be the net ionic equation?

1. When the following cations and anions react, if the product is insoluble in water, write the net ionic equation for the precipitate reaction.(a) Ag+ and Cl-  (b) Ba2+ and SO42-  (c) Na+ and Cl-, (d) Zn2+ and NO3-

Specify what ions are present in solution upon dissolvingeach of the following substances in water: (a) FeCl2,(b) HNO3, (c) 1NH422SO4, (d) Ca1OH22

A sample of 0.8360 g of an unknown compound containing barium ions (Ba2+) is dissolved in water and treated with an excess of Na2SO4. If the mass of the BaSO4 precipitate formed is 0.7176 g, what is the percent by mass of Ba in the original unknown compound?

Aspirin, acetylsalicylic acid, C9H8O4, reacts with basic substances. If the titration of an aspirin tablet (with mass equal to 1,000 g) requires 25.43 mL of 0.100 M NaOH to reach the end point. How many grams of acetylsalicylic acid are in the tablet? What is the percent by mass of acetylsalicylic acid in the tablet?

An unknown contains citric acid, C6H8O7, a tribasic acid, and potassium chloride. If 2.135 g of unknown requires 19.90 mL of 0.688 M NaOH for complete neutralization of all reactive protons, calculate the percent by mass of citric acid in the sample. Indicate clearly your calculations and reasoning.

A student is titrating a vinegar solution to determine the acetic acid (HC2H3O2) content. They add exactly 10.00 mL of the solution to a flask with a few drops of phenolphtahalein, and titrate it with an NaOH solution. The NaOH concentration is 0.6 M and it takes 12.04 mL to neutralize the acid and reach the endpoint. What is the molar concentration (M) of the acetic acid in the vinegar solution?