Soluble and Insoluble Salts_072522

Fill up the table and answer the questions.

Name Formula Solubility in Water (soluble/slightly soluble/insoluble) Explanation Ammonium chloride NH4Cl     Ammonium nitrate NH4NO3     Sodium sulfate Na2SO4     Sodium carbonate Na2CO4     Calcium chloride CaCl2     Calcium nitrate Ca(NO3)2     Calcium sulfate CaSO4     Calcium carbonate CaCO3

Which of the following is the least soluble in water? 1.Sodium Carbonate 2.Ammonium Phosphate 3.Lithium Sulfide 4.Calcium Sulfide 5.Magnesium Flouride

A 5.00 mL sample of solution has 1.28 g of calcium ions. Assume that the density of the solution is 1.2 g/mL. D. Calculate the concentration of calcium ions in parts per million (by mass). E. Calculate the concentration of calcium ions in % (m/v).

Completion Status: al Moving to another question will save this response. Question 6 Calculate the molar solubility for the following salts in water. Write answer in scientific notation to two significant figures. Use "E" when writing scientific notation. a. BaF2 ( Ksp = 1.84x10)- ure b. Cd3(AsO4)2 (Ksp = 2.2x10-33) - A Moving to another question will save this response. hulu

160 140 1. Based on the graph, overall, what happens to the solubility of 120 NaCIo, solid solutes when temperature increases? 100 2. At 10 which solute has the highest solubility? 3. At 10 which solute has the lowest solubility? 4. According to the graph, which substance maintains almost KBr K,Cro. ka constant solubility over the given temperature range? KOO, KM0, 10 20 0 40 so 0 70 s0 KOO. 100 Temperature in degrees C Solubility in grams of anhydrous solute/100gof water "ON'HN

Materials Needed solid I2 solid CUSO4-5H20 food dye solid (NH4)2SO4 heavy metals waste container halogenated waste container non-halogenated waste container semi-micro test tubes and rack regular test tubes and rack squash pipettes acetone cyclohexane propan-2-ol Method Part A: Solubility of ionic and molecular solids 1. Place a small amount (about the size of 1 grain of rice, see picture) of copper sulfate into each of three DRY semi-micro test tubes. Add 20 drops of water to the first test tube and gently flick the test tube with your finger to ensure mixing. 2. Repeat step 1 using acetone in place of water as the solvent in the second test tube. 3. Repeat step 2 replacing acetone with cyclohexane in the third test tube. Hold the test tubes against a white background to compare the solubility of copper sulfate in the three solvents and record your results. Discard these mixtures into the heavy metals waste container in the fume cupboard. Once these test tubes have been emptied you…

CHEMISTRY 1110L LAB REPORT: PROPERTIES OF SOLUTIONS Part One (Do calculations on the back of this sheet, prior to lab!) 1. In order to prepare 50.0 mL of 0.100 M NaOH you will add 2. In order to prepare 50.0 mL of 0.200 M 3. In order to prepare 50.0 mL of 0.150 M 4. In order to prepare 50.0 mL of 0.100 M HC₂H3O2 you will add mL of 1.00 M HC₂H₂O₂ to HCl you will add H₂SO4 you will add 5. In order to prepare 40.0 mL of 0.100 M NH3 you will add 6. In order to prepare 50.0 mL of 0.100 M NaCl you will add___ grams of NaCl to mL of water. 7. In order to prepare 50.0 mL of 0.100 M C12H22O11 (sucrose) you will add grams of C12H22O11 to mL of water. NOTE: The final volume is the sum of the concentrated solution plus the volume of added water. When making solutions from solids, since the solid dissolves in the water with minimal volume change, the volume of the final solution is the amount of water you need to use. Part Two 8. Measurement of Acidity a. 0.100 M NaOH b. 0.200 M HCI c. 0.150 M…

NOTE: Diagram is not to scale How much water should be ADDED to 10.0 mL of 6.00 M HCI to make a 0.500 M HCI solution? O 100. mL O 60.0 mL O 110. mL O 50.0 mL 25 26

An aqueous potassium carbonate solution is made by dissolving 6.84 moles of K,CO, in sufficient water so that the final volume of the solution is 3.30 L. Calculate the molarity of the K,CO, solution. concentration: M

1. A 12% by mass sodium chloride solution is prepared by dissolving enough of the salt to give 200.0 g of solution. What is the mass of water required? 2. Calculate the solubility of carbon dioxide in water at 0 °C and a pressure of 2.5 atm. The solubility of carbon dioxide is 0.348 g/100 mL water at 0 °C and 1.00 atm. Compute the solubility in g/L 3.You are tasked to prepare 1L of 0.85% Normal saline solution (NSS) for the Lab. How much more NaCl do you need to add if you initially dissolved 0.5g of NaCl? 4.An aqueous solution of hydrochloric acid contains 24% HCl by mass. Calculate the mole percent of HCl in the solution. 5.What is the molality of 12.5N HNO3 solution? Density=1.503 g/mL

QUESTION 6 Determine the final concentration (M) of sucrose after 0.193 L of a 1.15 M sucrose solution is diluted to 0.715 L (write your answer to 3 significant figures) QUESTION 7 The elements Ti, Mg, and He are, respectively, members of the groups of elements called O A. transition metals, alkaline earth metals, noble gases OB. halogens, transition metals, alkaline earth metals OC, transition metals, alkali metals, halogens OD. alkaline earth metals, alkali metals, noble gases OE. transition metals, alkaloid metals, noble gases Save All Answers to save all answers.

How is the solubility of a gas affected by the temperature of the solution? 1) Solubility increases with increasing temperature. 2) Solubility increases with decreasing temperature. O 3) Solubility remains the same with increasing temperature. Solubility decreases with decreasing 4) temperature. O 5) Two of the above

____Adding a large amount of water to a 1.0 M NaCl solution will result in an increase in the molarity of the NaCl solution. a decrease in the amount of solvent. the number of moles of NaCl remaining the same. the solution becoming more concentrated in NaCl

Please complete the following question. SA2

Question 16 A group of students completed an experiment to determine the effect of temperature on the solubility of a substance. Use the data given in the table to graph the results of the experiment using Excel (or other graphing software). Add a line of best fit, the equation for the line and the R2 value. Upload your graph. Temperature (°C) 5 15 25 35 45 55 Solubility (mM) 5.0 4.5 4.0 3.5 3.0 2.5

Consider the following salts. Which is the MOST soluble in water? Explain your answer.

The solubility product constant, Ksp, values for some fluoride compounds are given below. Use these to answer the next three questions. Ksp at 25°C 6.60 × 10° SALT MgF, Ca F, Sr F, Ba F, Pb F2 3.9 × 10-11 2.9 × 109 1.7 × 106 3.6 x 108 Which one of the compounds listed in the table is the least soluble in water at 25 °C? а) MgF2 b) Са F, c) Sr F, d) Ba F2 e) Pb F2

please answer part (a) and (b)

2H₂(g) + O₂(g) + 2H₂O (g) + energy (heat) 3. Pressure (Recall Gizmo activity: Equilibrium and Pressure) a. If the pressure of the system was increased, what else wuld this have an effect on? Temperature of the system? Concentration of species in solution? Volume?true b. If the volume of the system decreases, do you think the system would want more gas molecules or less gas molecules in the system to relieve the "stress" on the system? Based on this, what would happen to the forward and reverse reaction rates? Why?

1 gram will settle to the bottom and fail to dissolve. 1 gram will float on the surface and cause crystallization. O 1 gram will float on the surface. A teacher has a bottle of 6.0 M hydrochloric acid. She wants to make 3.0 L of 3.0 M HCI for her chemistry classes. How much of the 6.0 M HCI will she need to use? Show Your Work 800 mL 1500 mL 1800 mL 500 mL /hat is the molarity of a solution containing 15.0 g of sodium hydroxide dissolved in 1.00 L of solution? Mc nass of NaOH is 40.0 grams/mole.

A small amount of methanol (CH,OH) is dissolved in a large amount of water. Imagine separating this process into the four stages sketched below. (These sketches show only a portion of the substances, so you can see the density and distribution of atoms and molecules in them.) В CH, ОН H,0 solution Use these sketches to answer the questions in the table below.

Answer both the parts or leave someone else to answer