Goal: You are tasked to film your designed simple investigation determining the effect of dissolution on boiling point or freezing point Role: You are food technologist Audience: Your audience is Grade 11 STEM students. Situation: In the promotion of health and wellness month, you are tasked to prepare a meal showing chemistry applications on the effect of dissolution on boiling point or freezing point which are utilized and helpful in the kitchen Product: Short video Standard: It should be innovative (story-line and visual effects) presenting accurate investigation procedure and concept application informativeness

Goal: You are tasked to film your designed simple investigation determining the effect of dissolution on boiling point or freezing point Role: You are food technologist Audience: Your audience is Grade 11 STEM students. Situation: In the promotion of health and wellness month, you are tasked to prepare a meal showing chemistry applications on the effect of dissolution on boiling point or freezing point which are utilized and helpful in the kitchen Product: Short video Standard: It should be innovative (story-line and visual effects) presenting accurate investigation procedure and concept application informativeness

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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utions - Homework - 2022.pdf - Adobe Acrobat Pro DC (32-bit) E-Sign Window Help ols Chapter 14 - Soluti. x 2 / 3 135% 8) Determine the freezing point of a solution that contains 63.8 g of naphthalene (C10H8, molar mass = 128.16 g/mol) dissolved in 275. mL of benzene (d = 0.877 g/mL). Pure benzene has a melting point of 5.50°C and a freezing point depression constant of 4.90°C/m. d fliv ebruogrnos sniwollot srb lo rdairlW (1 (EelD) onimaly tomit (I acorous (CH3COCH?) stuloe slitslovn qps adnoone B) O 300 CISO Inioq anilam omce ori overl ls verdT (3 D)0 100 a VICI oqmot eirs s ) vilidulce ort oninnsis (E 0.26 gnivlozaib yd bonisido pexsue Ce ylienob e 26rd noituloe adt it DH arlo inalom srb noituloe 1 MS.0lo (J) omulov torW
1:44 PM 169% Constant No relationship Describing the relationship between the melting time for an ice cube and amount of salt sprinkled on the cube by writing about it or by constructing a graph, is an example of Communicating Inferring Hypothesizing Observing After observing the melting rates of an ice cube sprinkled with salt and one without salt, concluding that salt reduces the freezing point of water, is an example of Inferring Hypothesizing Observing Predicting
(NH.),CO) The normal boiling point of a certain liquid X is 94.4 °C, but when 43.17 g of urea are dissolved in 450. g of X, it is found that the solution boils at 95.5 °C instead. Use this information to calculate the molal boiling point elevation constant K, of X. Be sure your answer has the correct number of significant digits. DC-molkg
E D Page view A Read aloud V Draw Highlight O Erase The sign of the molar heat of solution (whether it is endothermic or exothermic) of a solid solute in a liquid solvent depends the relative values of AH° for three steps in the dissolution process: (1) separation of the solute molecules, (2) separation of the solvent molecules and (3) mixing of solvent and solute molecules. Two of these steps are always endothermic, while the third is always exothermic. Which of the following statements is true? A) Separation of the solvent molecules is exothermic while separation of the solute molecules is endothermic. B) Mixing of the solvent and solute molecules can be exothermic or endothermic. C) If the magnitude of either separation step is greater than the magnitude of the mixing step, then molar heat of solution will be negative. D) If the magnitude of the sum of the two separation steps is greater than the magnitude of the mixing step, then molar heat of solution will be positive. E) The…
What is the kinetic property observed in suspension? What is the optical property observed in solutions?
15 16 17 18 19 20 21 22 23 24 25 26 27 A certain liquid X has a normal freezing point of 4.80 °C and a freezing point depression constant K,=6.94 °C-kg-mol . Calculate the freezing point of a !! solution made of 175.g of iron(III) nitrate (Fe(NO,),) dissolved in 850. g of X. db Round your answer to 3 significant digits. Submit Assignment Continue MacBook Air F12 FII F9 F10 FB 000 F6 F7 80 F5 esc F1 F2 * & $ %
Topics] The normal boiling point of methanol is 64.7°C. A solution containing a nonvolatile solute dissolved in methanol has a vapor pressure of 673 torr at 64.7°C. What is the mole fraction of methanol in this solution? Mole fraction = Submit Answer Retry Entire Group 9 more group attempts remaining Cengage Learning Cengage Technical Support [References] Previous Next Save and Exit
Post Lab Questions 1 A student performed a freezing point determination for a solution with the following results. mass of unknown = 1.982g mass of water = 19.69g freezing point of water = %3D %3D Time Time Temp (deg C) Time Temp Time Temp (min) (deg C) (deaC) (min) (min) (min)
A certain liquid X has a normal freezing point of – 9.40 °C and a freezing point depression constant K,=4.04 °C kg•mol 1 . A solution is prepared by dissolving some iron(III) chloride (FeCl,) in 150. g of X. This solution freezes at - 13.0 °C. Calculate the mass of FeCl, that was dissolved. Round your answer to 2 significant digits. do Ar Check Explanation Terms of Use Privacy Center | Accessibility ©2022 McGraw Hill LLC. All Rights Reserved. FEB tv 3.
1/3 of its capacity. If the volume of the mixture before distillation was 70ml and the percent of recovery was 66%, what is the volume of distilled liquid: ) 46.2ml 10.6ml 58ml 94ml Most organic substances are safe for health which can be safely contacted
Extra information: freezing point depression constant for the solvent (20.0 degrees Celcius kg/mol for cyclohexane)
When 64.8 g of sucrose was dissolved in 100 g of water, the freezing temperature of the water was measured as -3.52 ° C. a) The freezing point of the water is determined as ................. ....................... the descent constant. b)When 32 g of substance A is dissolved in 100 g of water, since the freezing point is 8 ° C, the molecular weight of substance A is ....... ......... Mesaccarose: 342.2965 g / mol) Note: enter only required numerical values and units in the spaces in the question.