3. Determine the number of components in each of the following systems a. CH3COOH + C₂H5OH CH3COOC₂H5 + H₂O b. Aqueous solution of sodium acetate (NaC₂H5O₂)

Consider the neutralization reaction 2 HNO3(aq) + Ba(OH)2(aq) → 2 H2O(l) + Ba(NO3)2(aq) A 0.105 L sample of an unknown HNO3 solution required 41.1 mL of 0.200 M Ba(OH)2 for complete neutralization. What is the concentration of the HNO3 solution? concentration: Σ

Use the solubility curve to help you answer the following questions: 150 140 5. Which substance experiences the least amount of change in its solubility? 130 120 110 100 NANO3 6. How many grams of sodium nitrate can be dissolved in 175mL of water to make a saturated solution at 30°C? 90 80 70 NH&CI KCI, Naci 60 50 7. What is the solubility of potassium chloride at 90°C? 40 30 20 KCIO3 8. At what temperature does sodium nitrate have a solubility of 115 g/100mL? 10 -Ce2(SO)3 0 10 20 30 40 50 60 70 80 90 100 Temperature (C) 1. Why does the x axis of the graph only go from 0°C to 100°C? 9. You have a solution of potassium chlorate containing 30 grams at 80°C. Is the solution saturated, unsaturated, or supersaturated? 2. Which substance is most soluble at 10°C? 10. The solution described above in #8 is allowed to cool. At what temperature would crystals appear? 3. Which two substances share the same solubility at 80°C? 11.A solution of ammonium chloride contains 52g/100mL at 80°C. How many…

At a certain temperature, chlorine gas and carbon monoxide react to form carbonyl chloride: Cl2(g) + 2 CO(g) 2 coC(g). When 3.0 x 10-3 M Cl2 is mixed with 0.030 M CO and 9.0 x 10-3 M COCI, the concentration of ccl decreases. Which statement below is true? а. Кс 100 c. Kc = 30 d. Kç > 30 e. Kç = 100 f. Kç < 100 Your answer is incorrect. The correct answer is: Kc < 30

If 20.0 g of LiOH is added to 0.750 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.

Soluble Insoluble (NH4)2S MgS Hg2Br2 FeF3 CaSO4 Pb(NO3)2 NaCH3CO2 K3PO4 KF Ba(CH3CO2)2

A 0.124 M NaOH(aq) solution was used to titrate 20.00 mL of an NH3(aq) solution that has an unknown concentration. The equivalence point is reached after adding 22.50 mL of HCl(aq).   a. Write out the complete balanced equation for the reaction that occurs in this titration. b. How many moles of HCl were added to the NH3 solution? c. How many moles of NH3 were in the original 20.00 mL solution? d. What was the concentration of NH3 in the original 20.0 mL solution?

Suppose 25.0 g of solid NaOH is added to 1.50 L of anaqueous solution that is already 2.40 M in NaOH. Thenwater is added until the final volume is 4.00 L. Determinethe concentration of the NaOH in the resulting solution.

A student reacts an unknown solid with an unknown liquid and makes the following observations: The solid dissolves to form a colorless solution. A gas is produced that is colorless, odorless, and has no effect on wet red or blue litmus paper. Which of the following pairs could be the unknown solid and unknown liquid? Select all that apply.     A. Mg(OH)2 (s) + 2 NH4Cl (aq)   B. BaCO3 (s) + 2 HCl (aq)   C. H2SO4 (aq) + ZnCO3 (s)   D. 2 HCl (aq) + Mg(OH)2 (s)   E. Ba(OH)2 (s) +  2 HNO3 (aq)   F. NH4Cl (s) + KOH (aq)

Either sulfuric acid or bismuth(III) nitrate pentahydrate can catalyze this reaction. What is an advantage to using sulfuric acid? What is an advantage of using the bismuth compound?