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- blity and 18.3 Obbs Free E... 18.3 Gibbs tab . shift esc caps lock Free E... 5.3 Enthalpies of... O ACIDS AND BASES Identifying the major species in weak acid or weak base... The preparations of two aqueous solutions are described in the table below. For each solution, write the chemical formulas of the major species present at equilibrium. You can leave out water itself. Write the chemical formulas of the species that will act as acids in the 'acids' row, the formulas of the species that will act as bases in the 'bases' row, and the formulas of the species that will act as neither acids nor bases in the 'other' row. You will find it useful to keep in mind that HCN is a weak acid. 2.2 mol of KOH is added to 1.0 L of a 1.4MHCN solution. 0.25 mol of HBr is added to 1.0 L of a solution that is 1.0M in both HCN and KCN. control Explanation. ! 1 Q A Check @ 2 N W S acids: 0 acids: 0 bases: Oother: O 0 acids: O bases: 0 Oother: w # T 3 X H I option command E D $ 4 C R 200 F de L % 5 V T G X…Q.3 The elevation of boiling point and depression of freezing point of a certain solution of a monobasic acid HA in benzene are AT, and AT, respectively. HA exists usually as a monomer, but it dissociates into ions (with degree of dissociation a) at the boiling point T, of the solution, whereas at the freezing point T, of the solution, HA exists as (HA)n with a fixed value of n. The molal boiling point elevation constant and molal freezing point depression constant are K, and Kf, respectively. The correct expression for n is Ans X 1. n = [AT; K; (1+a)] / (AT, K, ) 2. n = [AT, K, (1+a)] / (AT; K; ) 3. n = (AT, K; ) / [AT, K, (1+a)) X 4. n = (AT, K, )/ [AT; K, (1+a)] %3DCalculate the following exercise with correct sig figs: ((2.9365mL - 3.00mL)/3.00mL)x100%
- 10.8 For solutions of water (w) and H,O, (hp) at 333.15 K, some liquid and vapor compositions and (total) vapor pressures are 0.100 0.300 0.500 0.700 0.900 X. 0.301 0.696 0.888 0.967 0.995 P/kPa 3.00 5.03 8.33 12.86 17.77 The pure-liquid 333.15 K vapor pressures are P* and P = 2.35 kPa. For a solution at 333.15 K with x = 0.300, 19.92 kPa W hp calculate (a) y, and a, of water and of H,O2; (b) aŋ and yu of water and of H,O, if the solvent is taken as water; (c) AmixG to form 125 g of this solution from the pure components at con- YI stant T and P.174 Solublity and... 18.3 = Slide 2 of 105 esc 18.3 Gibbs Free Gibbs Free E... O KINETICS AND EQUILIBRIUM Calculating the solubility of an ionic compound when a commo... Calculate the solubility at 25 °C of AgCl in pure water and in a 0.0110M AgNO3 solution. You'll find K, data in the ALEKS Data tab. Round both of your answers to 2 significant digits. solubility in pure water: Explanation solubility in 0.0110 M AgNO, solution: 7 E.5.3 Enthalples of.... Notes e Q A 2 Z Check W S 3 0- g 20 Comments P: + 18.5 Gibbs Free E... Reading Schedule 19.6 Reduction Po... Pa SOLUTION TH F D 4 > R F 00 0° 0. 0x0 5 1 X V 79% 6 G 53 $ Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center 0.0 Copyright 2022 | CUNY IT Help I'm Y B 7 H U N 8 Is J M 9 ( 0 ge 0 O PGypsum (CaSO4) is a common percipitant in water desalination. CaSO4 <=> Ca2+ + SO42- where Ksp=10-4.6. Assuming that: [Ca2+]=2x10-2 M; [SO42-]=2x10-3M: a) Find Qsp or IAP for the given water b) Find the solubility index (SI) and determine whether CaSO4 is under, super, or at saturation in water. Feel free to make any assumptions you wish, as long as they're stated.
- The Common App... An experiment was conducted using KNO3. The table below shows the data obtained after dissolving different masses of KNO3 in 10 ml of deionized water and then cooling to determine the temperature at which the different concentration of salts begin to recrystallize Concentration of KNO3 Saturation temperature(°C) 2g/10 ml 52.5 4g/10 ml 54.7 6g/10 ml 66.7 8g/10 ml 80.2 If a student dissolve 24g of KNO3 in 120 ml of deionized, at what temperature do you expect to see recrystallization O 52.5 degree celsius O 66.7 degree celsius 0:54.7degrce celsius O100.2 degree celsiusCalculate ionic strength of the following electrolyte solutions: (a) 0.04 mol/kg CaCl2(aq) (b) 0.05 mol/kg NaCl(aq) and 0.03 mol/kg CaCl2(aq) (c) 0.04 moles of Al(NO3)3(aq) and 0.06 moles Ca(NO3)3 and 27.778 moles of water.(d) (b) (c) (e) Reaction coordinate (X Y ) 1. 1. 3. Potential energy
- Data Sheet II. Delivering Solution from Your Buret 17.28 (1) final buret reading, mL 6.52 (2) initial buret reading, mL (3) approved by 10.76 (4) volume of H2O delivered, mL (5) approved by VI. Preparing Your Bleaching Solution Sample Clorox (6) brand name of commercial bleaching solution 4.42 (7) cost of commercial bleaching solution per gallon (see laboratory instructor) 1.12 (8) density of commercial bleaching solution, g mL- (see instructor) (9) volume of commercial bleaching solution diluted to 100 mL, mL 10.00 VII. Analyzing Your Diluted Bleaching Solution Sample determination 0.1050 0.1050 (10) molarity of Na,S2O3 solution, M 25.00 25.00 (11) volume of diluted bleaching solution titrated, mL 44.10 44.30 (12) final buret reading, mL (13) initial buret reading, mL 0.00 0.14 (14) volume of Na,S2O3 solution used, mL (15) number of moles of S,O32- ion required for titration, mol (16) number of moles of I2 produced in the titration mixture, mol (17) number of moles of OCI ion in…Part A Use Raoult's law to calculate vapour liquid equilibrium behaviour for a multicomponent mixture of hydrocarbons. n-pentene i-pentane 0.1 n-pentane cyclohexane Mole fraction in mixture 0.2 0.6 0.1 (a) Calculate the pressure for which the mixture boils at 40°C. (b) Calculate the boiling temperature at atmospheric pressure. (c) From part (b), calculate the composition of the vapour phase that fomms at the nomal boiling point of the mixture. 16 M. H. Khoshgoftar ManeshChrome Femail draft esc C 17.4 Solubility and... 18.3 Gibbs Free E... E X A ALEKS-Lari X X Nancy Foldi www-awu.aleks.com/alekscgi/x/lsl.exe/1o_u-IgNslkr7j8P3jH-IvTqeviKFP6W0cqJcWJDIACROQwyw24GWHinrM9gp1X_skbilM9wHNg_6zrMKCucksw 18.5 Gibbs Free E... Reading Schedule 19.6 Reduction Po... a SOLUTION: The le... OKINETICS AND EQUILIBRIUM Calculating equilibrium composition from an equilibrium constant M Suppose a 250. mL flask is filled with 0.70 mol of NO₂, 0.60 mol of NO and 1.6 mol of CO₂. The following reaction becomes possible: NO₂(g) +CO(g) NO(g) + CO₂(g) Explanation 5.3 Enthalpies of... The equilibrium constant K for this reaction is 0.443 at the temperature of the flask. Calculate the equilibrium molarity of NO₂. Round your answer to two decimal places. Zoom (2).pkg 1 F Check X C|Chegg. C E 13 3 $ 4 ♫tv N G Search or type URL R 5 B EX "/A U Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use 0 8 + ▬▬000 15 Math 115 W-5 a ( OD a → O