Write the balanced NET ionic equation for the reaction when Pb(NO₃)₂ and KI are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.

Write the balanced NET ionic equation for the reaction when BaCl₂ and ZnSO₄ are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.

A 1.00 gram sample of anhydrous cerium sulfate was dissolved in water. Barium nitrate solution was then added until no further precipitation occurred. The precipitate was filtered from the solution then dried and was found to weigh 1.41 g. Determine the formula of the cerium sulfate. Encom calt is hydrated

+2 When excess Na,so, solution was added to 20.0 mL of an unknown solution containing Ca ion, 0.0472 g of Caso, precipitated. What is the molar concentration (molarity) of Ca in the unknown solution? (molar mass of Caso, = 136.14 g/mol A) 1.36 x 102 B) 2.47 x 102 C) 2.10 x 10 D) 1.73 x 10 E) 3.83 x 10 Select one: -2 O a. 2.47 x 10 -2 с. 3.83 х 10 d. 1.73 x 10 -2 е. 2.10 х 10

Part B Write a net ionic equation for the reaction between aqueous HI and aqueous Ba(OH)2. Express your answer as a chemical equation including phases. ΑΣφ ? 2I(aq) + Ba?* →Bal, (s) A chemical reaction does not occur for this question.

1. The following reaction occurs in your lab: You have 225.0 mL of 0.345 M Na3PO4. How many grams of precipitate can are made? Balanced Rxn: 3 CaCl2 (aq) + 2 Na3PO4 (aq) → 6 NaCl (aq) + Ca3(PO4)2 (s) - 2. How many mL of a 0.220 M solution of KOH will be required to titrate 38.00 mL of a 0.0566 M solution of H3PO4? Balanced Rxn: H3PO4 (aq) + 2KOH (aq) → K2HPO4 (aq) + 2H2O (1)

Write the balanced NET ionic equation for the reaction when NH₄Br and Pb(NO₃)₂ are mixed in aqueous solution. If no reaction occurs, simply write only NR. Be sure to include the proper phases for all species within the reaction.

Mercury as an amalgam with copper, silver, and tin is used fro fillings in teeth and in the production of chlorine. Soluble mercury compounds can be toxic and must be removed from wastewater. Aqueous mercury (II) nitrate is a toxic compound formed in wastewater and must be removed. To remove this compound, an aqueous sodium sulfide (Na2S) solution is added to wastewater to form a solid mercury (II) sulfide  (HgS) precipitate and aqueous sodium nitrate in solution. From the analysis, 0.051 L of 0.010 M mercury (II) nitrate was reacted with 0.020 L of 0.10 M sodium sulfide. Write a balance equation for this chemical reaction. Determine the limiting reactant. How many grams of mercury (II) sulfide form? How many grams of excess reactant remain after the reaction is finished?

If 30.0 g of LiOH is added to 0.650 L of 1.00 M Cd(NO₃)₂, how many grams of precipitate will be formed in the following precipitation reaction?    a) Write a balanced equation. Identify a precipitate. Include states of matter.  b) Determine how much precipitate would form if all reactant 1 ( LiOH) would be used up.  c) Determine how much precipitate would form if all reactant 2 ( Cd(NO3 )2 would be used up.  d) State Limiting reactant , and theoretical yield ( in grams) of the precipitate that would form from the given amounts.

Solutions of RbBr and AgClO4 are mixed at room temperature, resulting in a solution that is 7.5 × 10–7 M RbBr and 1.5 × 10–5 M AgClO4. What is expected to happen to the new solution upon mixing? Ksp (AgBr)  =  1.8 × 10–10 Silver bromide will precipitate out of solution, leaving an unsaturated solution of AgBr. Nothing will happen since the silver and bromide ions are not in high enough concentration to form a precipitate. Silver bromide will precipitate out of solution, leaving a saturated AgBr solution. There is not enough information to say anything about this solution. Nothing will happen since RbBr and AgClO4 are both soluble compounds.