Experiment 5- Double Displacement Precipitation Reactions 2022-2023

11 and 12

Post lab questions: 1. Predict the product of mixing reasonably concentrated solutions of the following compounds. If a precipitation is expected write a balanced net ionic equation: (a) Potassium sulfate and barium nitrate (b) Lead nitrate and ammonium carbonate 2. Which solution could be used to precipitate the barium ion, Ba2", in a water sample? The choices are sodium chloride, sodium hydroxide or sodium sulfate. What is the formula of the expected precipitate? 3. Ag* ions in a solution with PO, resulted in a precipitate. HNO, was then added. Provide a balanced equation for the reaction between the precipitate and nitric acid.

Chemical precipitation uses a chemical to react with dissolved minerals in feed water to form a ______ that drops harmlessly out of solution. Group of answer choices gaseous precipitate liquid precipitate Gaseous Liquid solid precipitate

The Solubility Product Constant for zinc phosphate is 9.1 x 10-33 Solid sodium phosphate is slowly added to 125 mL of a 0.0500 M zinc acetate solution. The concentration of phosphate ion required to just initiate precipitation is M. Submit Answer Retry Entire Group 7 more group attempts remaining Submit Answer Use the References to access important values Here The Solubility Product Constant for copper(11) hydroxide is 1.6 x 10-19, Solid sodium hydroxide is slowly added to 50.0 mL of a 0.0340 M copper(II) nitrate solution. The concentration of hydroxide ion M. required to just initiate precipitation is Retry Entire Group 7 more group attempts remaining

Please don't provide handwritten solution

Write observation and complete molecular equation. Identify the precipitant using solubility chart. B1: Phenolphthalein is pink in presence of NaOH. It will become colorless as HCl is added. Some heat can be felt. Observation: Equation: B2: Gas bubbles will evolve from the test tube when solid Na2CO3 is added to HCl. Observation: Equation:

Which 2 ingredients must not be added closely together during the preparation process due to the formation of precipitate Select one: O a. Phosphate and Sodium O b. O C. O d. Phosphate and Calcium Calcium and Acetate Calcium and Potassium od/quiz/attempt.php?attempt=188445&cmid=102367&page=52# Q Search B 9 CO

What is the coefficient for water in the following reaction that is balanced in base? Please enter only a numeric value in the box.

I need help understanding how to do this homework question. I've been out sick so I don't even know how to even begin to attempt this question.

1. Write the complete ionic equation that resulted in precipitate formation.  2.  Write the net ionic equation.

I need help understanding how to do this homework question. I've been out sick so I don't even know how to even begin to attempt this question.

1.     Reaction Add 1 drops of … Add 1 drops of… Did a precipitate form?   1 Fe(NO3)3         Na3PO4   2 AgNO3   3 Zn(NO3)2   4 Al(NO3)3   5 Pb(NO3)2

How can we answer these questions on solution stoichiometry and equilibrium?

Volumetric Analysis Liza carefully pipets 25.0 mL of 0.525 M NaOH into a test tube. She places the test tube into a small beaker to keep it from spilling and then pipets 75.0 mL of 0.355 M HCl into another test tube. When Liza reaches to put this test tube of acid into the beaker along with test tube of base, she accidentally knocks the test tubes together hard enough to break them and their respective contents combine in the bottom of the beaker. Is the solution formed from the contents of the two test tubes acidic or basic? What is the pH of the resulting solution?

please solve

How do I predict whether each of the reactions below will produce a precipitate and, if so, what would the precipitate be. If there is more than one precipitate, what are both of them. Or if there is no precipitate, state ‘none.’

2. Will mixing a barium nitrate solution and a lithium sulfate solution produce any precipitates? Write the balanced chemical equation and the balanced net ionic equation to solve this problem. Show your states! (1 mark for reactants, 2 for products and states, 1 for balancing, 1 for balanced net ionic equation)

Propose a double displacement reaction that could be performed to create Mercury (II) oxide precipitate from two soluble compounds. Include formulas, balance, and states.