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sq An aqueous solution of a nonionic (that is, nonelectrolyte) solute has a freezing point of -0.293 °C. The solution contains 1.94 g solute dissolved in 78.9 g H₂O. What is the molar mass of the solute? Submit Submit Answer g/mol Show Approach Show Tutor Steps Retry Entire Group 9 more group attempts remaining Cengage Learning Cengage Technical Support Previous Next> Save and Exit

What is the solubility of BizS3 in g/L (At. Mass: Bi = 209; S =32 ). Ksp BizS3= 1.6 x 10-72 Answer format: 1.00x10-14 (Don't put the unit. Round-off your final answer in two decimal place)

Colligative Properties Experiment 15: Colligative Properties Postlab 1. When the stems of cut flowers are held in concentrated NaCl (aq), the flowers wilt. Explain the basis of this phenomenon. Is this an isotonic, hypotonic or hypertonic solution? 2. Given two NaCl(aq) solutions at the same temperature; (1) saturated solution with excess NaCl(s) remaining at the bottom of the container and (2) an unsaturated solution with all NaCl dissolved in solution. a. Above which solution is the vapor pressure of water greater? Explain. b. Which of these solutions has the higher boiling point? Explain

In a laboratory experiment, a student found that a 104-mL aqueous solution containing 2.878 g of a compound had an osmotic pressure of 21.1 mmHg at 298 K. The compound was also found to be nonvolatile and a nonelectrolyte. What is the molar mass of this compound? Submit Submit Answer mass Show Approach Show Tutor Steps g/mol Retry Entire Group 9 more group attempts remaining Cengage Learning Cengage Technical Support Previous Next> Save and Exit

PLEASE SHOW ALL WORK FOR BOTH PARTS OF THIS QUESTION<<<< THANK YOU SO MUCH>>>>  What volume of barium chloride, BaCl2 is needed to make a 2.5 M barium chloride solution with 0.25 mol BaCl2?                                                     and  Determine the moles of solute in a 350g solution that is 0.15 molal.

arn more Okay Disable and 13 - Solutions Conceptual Connection 13.5 - Enhanced - with Feedback Part A If you combine 25.0 g of a solute that has a molar mass of 25.0 g/mol with 100.0 g of a solvent, what is the molality of the resulting solution? O 0.25 m O 8.0 m O 1.0 m O 10.0 m

Trying to determine concentration of sucrose in soda equation for standard curve:  y= 0.0186x+1 volume: 50 mL cola density = 1.08412 g/mL mass = 54.2060 g actual concentration (given) M of sucrose:  0.659449 M How would i determine: concentration of cola, Molarity of sucrose, percent mass of sucrose and mole fraction of sucrose given the information?

Complete the following table. and then Circle the compound that is most soluble in water; cross out the compound that is least soluble in water. On which calculated quantity do you base your judgment? compound molarsolubility, x(M) [cations]eq(M) [anions]eq(M) Kspexpression Kspvalue CaF2 2.2×10-4 2.2×10-4 4.4×10-4 4x3 4.1×10-11 AgCl       x2 1.6×10-10 Ag2CrO4 8.7×10-5         Cu(OH)2     3.5×10-7     AG3PO4         2.6×10-18

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

[References] An aqueous solution of 14.7 g of catalase, an enzyme found in the liver, has a volume of 1.00L at 27°C. The solution's osmotic pressure at 27°C is found to be 1.10 torr. Calculate the molar mass of catalase. Molar mass = g/mol Submit Answer Try Another Version 1 item attempt remaining Previous Next 9: 98%

Calculate the molar concentration (M), molality (m), and % by mass (% m), for a solution formed by mixing 6.2 g of a solute, with a molar mass of 49.3 g/mol, with 97.9 g of solvent. (The density of the solution is 0.8 g/ml). M = _____     m = ____  % m  = ______

A solution of H, SO, (aq) with a molal concentration of 8.01 m has a density of 1.354 g/mL. What is the molar concentration of this solution? molar concentration: M TOOLS x10 | contact us help about us privacy policy terms of use careers

Consider the solubility profile outlined below of acetanilide in water. Solubility in water at 20C 0.50 g/100mL Compound Acetanilide (a) Determine the minimum amount of water in mL required to dissolve 5.5 grams of acetanilide completely at 100 C. Submit your answer without units Submit Answer Tries 0/99 Solubility in water at 1000 5.50g/100 mL (b) If the solution question (a) above is cooled to 20 C, determine the amount in grams of acetanilide that would remain dissolved water. Submit your answer without units. Your answer Submit Answer Tries 0/99 (c) If the undissolved acetanilide in question (b) above is isolated by a filtration method, determine the amount grams that would be recovered and calculate the % recovery of this process [assuming zero material loss during filtration and transfers]. Submit your answer without units. Your answer [% recovery] Submit Answer Tries 0/99 This discussion is closed. Send Feedb

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)

You have created a solution using 36.6 grams of Solute A and 50.9 grams of Solvent X. Calculate the mole fraction of Solute A in this solution. Molecular mass of Solute A = 183.00 g/mol Molecular mass of Solvent X = 193.37 g/mol Your Answer: Answer

Using the Solubility Data for Report below answer the question: Compound                      Cold water Solubility               Hot Water Solubility Benzoic Acid            0.42 g per 100mL of water    5.79 g per 100mL of water Impurity                    0.61 g per 100mL of water     4.62 g per 100mL of water An impure sample contains 1.14 g of impurities and 5.14 g of benzoic acid. The sample is dissloved in 100mL of water and heated. The solution is then cooled. How many grams of impurity will crystalize when the solution has cooled?

Try Again Your answer is incorrect. • molarity: Your answer has the wrong number of significant digits. molality: Your answer has the wrong number of significant digits. A student dissolves 18. g of biphenyl (C₁2H₁0) in 100. mL of a solvent with a density of 1.04 g/mL. The student notices that the volume of the solvent does 12 not change when the biphenyl dissolves in it. Calculate the molarity and molality of the student's solution. Be sure each of your answer entries has the correct number of significant digits. molarity molality = = 1.168 1.123 m x10 0|0

What is the molality of lithium ions in an aqueous solution made up of 0.302 m Lİ:PO4 assuming the compound dissociates completely? STARTING AMOUNT ADD FACTOR ANSWER RESET *( ) %3D G 4 115.79 0.001 0.302 35.0 1 6.022 x 1023 0.906 1000 1.21 0.101 g Li:PO4 mol LisPO4 m Li:PO4 g Lit m Lit kg solvent g solvent mol Lit

Calculate the van't Hoff factor (i) for MX2 at this concentration. O 1.9 O 0.76 O 3.0 O 2.8 Submit Previous Answers Request Answer

# 3 20 E D The molar solubility of aluminum hydroxide in a water solution is Submit Answer 54 $ 888 R F F4 % 5 Retry Entire Group 9 more group attempts remaining T Cengage Learning Cengage Technical Support F5 G A 6 MacBook Air S F6 Y H & 7 V F7 U * 00 8 ▶11 Values it needed for this question. F8 1 9 K F9 O 1 0 J F10 P M. F11 =

4 $ R F An aqueous solution of barium chloride has a concentration of 0.429 molal. The percent by mass of barium chloride in the solution is Submit Answer F4 % 5 T G F5 Retry Entire Group 8 more group attempts remaining Cengage Learning | Cengage Technical Support 6 [Review Topics] [References] Use the References to access important values if needed for this question. Y H MacBook Air F6 & 7 U F7 * 8 FB K ( 9 %. FO O 0 F10 P Previous Next> + 11 Save and Exit 9:12

ant values if needed for this question. The boiling point of chloroform, CHCI,, is 61.700 °C at 1 atmosphere. K₁(chloroform)-3.67 "C/m In a laboratory experiment, students synthesized a new compound and found that when 13.13 grams of the compound were dissolved in 214.9 grams of chloroform, the solution began to boil at 62.477 °C. The compound was also found to be nonvolatile and a non-electrolyte. What is the molecular weight they determined for this compound? g/mol

Find the molality of a solution made by adding 9g of NaOCI to 4000g of water. (MW: Na=23 g/mol, 0=16 g/mol, Cl=35g/mol) A. 0.01 m B. 0.02 m C. 0.03 m D. 0.04 m 500g of Al2S3 is dissolved in H2O to make 15L of solution. W hat is its normality? (MW: Al=27g/mol, S=32g/mol, H=lg/mol, O=16g/mol) A. 0.11 N B. 0.07 N C. 0.22 N D. 0.04 N

Chemistry Assessment 1. Equal numbers of moles of two soluble substances; A & B, are dissolved into 1 L of water separately. Explain the following: a) The Water samples are cooled down. Solution A freezes at -0.5°C and B at -1°C. How these solutions can have different freezing points? b) Compare the freezing point of 500 mL of solution B with the 1 L of solution A. c) Calculate the molality of the solution A & B assuming i=1 for substance A. d) Describe the change of freezing point if you add 1 Kg of water into solution B. e) What would be the concentrations of A & B if they have the freezing point of -0.05°C? f) Compare the all-other colligative properties of the original solutions of A & B. 2. Ammonium hydrogen sulfide, NH,HS, is unstable at room temperature and decomposes: NH,HS(s) + NH3(3) + H2S(3) If you place some solid Ammonium hydrogen sulfide in the closed flask, in which of the following case it will produce less hydrogen sulfide gas- a) Removing some ammonia b) Adding some…