Solubility+Curve+Lab+v2

Lab report – investigating solubility of solids in water and interpreting the solubility curves. - Solubility Curves 150 140 130 120 NANO KNO: 110 100 90 80 HCI 70 NH,CI 60 KCI NH 50 40 NaCl 30 KCIO, 20 10 SO2 10 20 30 40 50 60 70 80 90 100 Temperature °C Use the above graph to answer the following questions. 1.What is the solubility of KCI at 80 degree С?.... 2Which solvent is used in this experiment?.. 3. What is the solubility of NH3 at 10 degree C?... 4.Which two solutes have same solubility at 60 degree C?. 5.At 90 degree C, 10 g of NH3 is dissolved in 100 g of water. Is this solution saturated , unsaturated or unsaturated ? 6.Which term is used to represent a solution in which more solute can be dissolved?... 7.--- + = solution 8.Which is the most soluble solute at 20 degree C?. 9.Identify the solute which is a gas ?. 10. What happens to the solubility of solids when temperature increases?.. Grams of solute /100 g H,O

1. If 30.0 mL of 1.0 M CH3COOH and 5.0 mL of 1.0 M NaOH are mixed in a beaker, what is the change in concentration? ("x") (use the values you found for questions 1 and 2 to solve this one)

Using the solubility curve above, how many grams of potassium iodide will dissolve in 100 grams of water at 20 degrees C? Group of answer choices 100 grams 145 grams 35 grams 14500 grams

L.O Page View Read aloud V Draw A Highlight Erase A chemist tries to dissolve a solid ionic compound called "X" in water at 25°C. He adds 100 mL of water to a beaker equipped with a stirrer on a balance. While slowly adding X to the beaker, he measures the mass of X added and, at the same time, carefully watches to make sure that everything he adds dissolves. Suddenly, when he has just added a total of 2 g of X, he sees that the mixture is no longer homogeneous (i.e. some of the X remains on the bottom of the beaker and won't dissolve). He divides the 2 g of X by the 100 mL of water and obtains the value 0.02 g X/mL water. This number répresents an important physical property of X. What is it uniquely called? A) the molarity of X in water at 25°C B) the concentration of X in water at 25°C C) the mass of X in water at 25°C D) the density of X in water at 25°C E) the solubility of X in water at 25°C How would you describe the solution that the chemist prepared in Question#1? A)…

Help with the last questions on the bottom please.

LAB VI. MOLAR MASS BY FREEZING POINT DEPRESSION • Colligative properties of a solution are properties that depend on the number of solute particles dissolved. • Colligative properties of a solution include: o Vapor pressure lowering, o Boiling point elevation, o Freezing point depression, and o Osmotic pressure. • The molar mass of a solute may be determined by measuring a colligative property of a solution. • In this experiment the freezing point of a solvent would have been determined from a cooling curve. Practice problems: • Calculate the freezing point of a solution of 800 g of ethylene glycole (MW = 62.02 g/mole) in 3,000 g of water given that the K(H2O) = 1.86 °C/m. • How many moles of ethanol are dissolved in t-butanol if the change in the freezing point is 10 °C, and t-butanol's Kr is 8.37 °C/m? How many grams of ethanol are dissolved in this solution? Calculate the freezing point of a solution of 200 g of glucose (MW = 180.096 g/mole) in 2,500 g of acetic acid, given that…

1. Solubility Test Table 1. Results for the solubility test. OBSERVATION* INFERENCE SAMPLE Ethyl acetate ** Нехаne Methanol Water Coconut oil Vitamin E Beef fat Miscible (soluble) or immiscible (insoluble) ** polar or nonpolar Sudan IV Test Table 2. Results for Sudan IV test. OBSERVATION* INFERENCE SAMPLE Нехаne Ethyl acetate Methanol Water ** Coconut oil Vitamin E Beef fat Homogeneous or heterogeneous mixture ** polar or nonpolar

Pls help ASAP ON ALL ASKED QUESTIONS PLS PLS

How do you convert experimental solubility into grams per 100ml of water and kg per metric ton of water?

Pls help ASAP ON ALL ASKED QUESTIONS PLS PLS

Please send me the question in 20 minutes it's very urgent plz both 1 and 2

D Page view A Read aloud O Add text From the solubility curve answer the following; a) At what temperature the solubility of KCIO3 is 20 g in 100 g of water? b) What is the solubility of NANO3 at 10 °C? c) At 50°C, 50 g of KCI is dissolved in 100 g of water. Is this solution saturated, unsaturated or supersaturated? d) At what temperature the solubility of KCIO3 and NaCl is the same? 6. 100 NANO, 90 B0 KNO, 70 60 KCI 50 40 NaCl 30- KCIO, Ce,(SO,), 20 10- 10 20 30 40 50 60 70 80 90 100 Temperature ("C)

2 mL solution x 155 mL solution 4.92 mol FeCl, Question 12 of 17 () If you have 155 mL solution 0.762 M FeCl, solution, how many moles of FeCl, are contained in this sample? 4.92 mol FeCl, PHOTO Cancel

Examine the solubility chart below and answer questions 5-12 300 Sugar 260 KNO, 220 180 NANO 140 Nabr 100 60 KCL Naci 20 Ce (So) 20 40 60 100 Temperature ("C) 5. Which ionic solid is most soluble in water at 0°C? A. sugar (C12H22011) B. KNO3 C. NANO3 D. NaBr E. Ce:(SO4)3 (oH 6 00t ad anyos ) Aaygnos

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…

What is the molarity of an aqueous solution that contains 0.0720 g C2H6O2 per gram of solution . The density of the solution is 1.04 g/mL X STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) 1.04 62.08 6.022 x 1023 0.0720 1.21 x 10-3 4650 1.12 1000 1.21 1 0.001 g C2H.O2 mol C2H6O2 g C2H&Oz/mol g solution/mL mL solution g C2H6O2/g solution M C2H6O2 L solution g solution

A standard solution of a chemical compound was prepared by diluting 10.0 mL of a 5,0 M stock solution with water to a final volume of 100.0 mL The following formula is used to calculate the concentration of the standard solution. C2= V2 C1XV1 What is the value of V2? Choose... What is the value of V ? Choose... What is the value of C,? Choose... Choose... 100.0 mL 110.0 mL 10.0 mL 5.0 M Next page

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The solubility of lead bromide in water is 4.27 grams per liter. If a lead bromide solution had a concentration of 2.89 grams per liter, it would be said to be Submit Answer Try Another Version 1 item attempt remaining saturated supersaturated unsaturated

Please do not round any values until the final answer, which should be in 3 significant figures.