Experiment 3 Freezing Point Depression

Chemistry HW need help, how to do these caculation and answer these questions?

B Solutions Review Quiz - CHM11 X 101 Chem101 app.101edu.co K Question 3 of 29 Submit Which of the following best describes what takes place during the solvation process? A) Molecules of the solute are attracted to one another more than the solvent. B) Solvent molecules surround solute molecules and pull them out into the solution. C) Molecules of the solvent are attracted to one another and exclude solute molecules. D) Solvent and solute molecules arrange themselves along a boundary. + ...

I need help with 5 and 6.    The initial temperature for all 3 solutions was 0.9 degrees C.

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

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

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please answer (: pls double check answer last one needed on aleks

1. ASSERTION: The solubility of gases in water follows the order O2 < N2 < SO2 < CO2 < NH3. REASON: For appreciable solubility, the solute-solvent interactions should outweigh the solute-solute and     solvent-solvent interactions. a. Assertion and reason both are correct statements and reason is the correct explanation for assertion. b. Assertion and reason both are correct statements but reason is not the correct explanation for assertion. c. Assertion is a correct statement but reason is a wrong statement. d. Assertion is a wrong statement but reason is a correct statement. 2. ASSERTION: The solubility of all gases in water decreases with the rise in temperature. REASON: The dissolution of gases in water is an endothermic process. a. Assertion and reason both are correct statements and reason is the correct explanation for assertion. b. Assertion and reason both are correct statements but reason is not the correct explanation for assertion. c. Assertion is a correct…

A certain liquid x has a normal freezing point of 2.30 °C and a freezing point depression constant K,=2.28 °C-kg-mol. Calculate the freezing point of a solution made of 45.5g of iron(III) nitrate (Fe(NO,),) dissolved in 200. g of x. Round you answer to 3 significant digits. x10

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Calculate the quantity (mL) of glycerin needed to prepare 250 mL of the following ophthalmic solution. Report your answer to 2 decimal places. DO NOT include units. Erythromycin lactobionate Dexamethasone sodium phosphate Glycerin Sterile water for injection, ad 500 mg 100 mg 2.5 mL 100 mL

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8. A certain substance X has a normal freezing point of -8.4 °C and a molal freezing point depression constant K, = 2.33 °C·kg-mol Calculate the freezing point of a solution made of 63.48 g of urea ((NH2),CO) dissolved in 700. g of X. Round your answer to 3 significant digits. 0c Submit Assignment Continue O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility II Finder F11 F12 F9 F10 F8

ne > My courses > 1802 > Topic 1 Final Exam What is the molality of NaCl in a solution that is 2.5 M NaCl, with a density of 1.02 g/mL? formual mass of NaCl = 58.5 g/mol of PREVIOUS ACTIVITY second exam Type here to search

For 1-4. A solution is 90% H2SO4 has a density of 1.84 g/ml. Find the 15. mole fraction of the solute, 16. molarity, 17. molality and 18. normality of the solution   1. Mole fraction of the solute  A. 0.62 B. 0.92 C. 0.38 D. 0.56 2. Molarity  A. 6.2M B. 0.62M C. 1.701M D. 17.01M 3. Molality A. 92m B. 0.92m C. 0.092m d. 9.2m 4. Normality  A. 1.24 N B. 12.4 N C. 34.02 N D. 3.4 N

Concentrated hydrochloric acid is usually available at a concentration of 37.7 percent by mass. What is its molar concentration? (The density of the solution is 1.19 g/mL.) Round off to 4 sig. figures for all calculations made prior to final answer and the final answer should be in 3 sig. figures

trying to solve for part B