Fill out the Flow Scheme below. Obtain your ternary mixture and follow the steps on p. 2. in CH,Cl2 H2N | aq. HCI organic layer |aqueous layer add NaOH and filter recover solid | aq. NaOH organic layer aqueous layer add HCI and filter dry solution, evaporate to recover solid recover solid
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- Calculate the moles and mass of Zn(NO3)2 in 29.3 cm³ of 0.952 moldm solution (ii) Relative formula mass of Zn(NO3)2 = 189.4 Moles: ...mol Mass: (iii) Calculate the moles and mass of H2SO4 in 29.3 cm³ of 0.952 moldm3 solution Moles: ...mol Mass: ....pure liqu PB liquid x solution B Esure solid x liquid x (saturate»The solubility of KNO3 at 25°C is 80 g KNO3 / 100g H20. [ Select ] solution a) A solution of 160g KNO3 in 200g of water is a [ Select ] unsaturated saturated supersaturated Stittt J solution b) A solution of 45g KNO3 in 50g of water is a [ Select ] v solution c) A solution of 10g KNO3 in 25g of water is a
- - 2022.pdf - Adobe Acrobat Pro DC (32-bit) ndow Help oter 14 - Soluti. x 2 / 3 100% 9) An aqueous solution has a normal boiling point of 103.0°C. What is the freezing point of this solution? For water Kb = 0.51°C/m and Kf=1.86°C/m. 9) A) -0.82°C B) -3.0°С С) -3.6°C D) -11°C 10) A solution of an 22.4 g of an unknown protein dissolved in enough water to make 0.150 L of solution has an osmotic pressure of 658 torr at 25°C. Based on these data, what is the molar mass of the protein? 10) search hpA 690 g of 59% strontium bromide solution is cooled from 60 oC to a certain temperature. Upon addition of around 2 g of strontium bromide, excess solute above saturation started to crystallize. Total recovered crystals is 146.003 g. How many solute is initially dissolved?Calculate the quantity of lime and soda required for softening one million litre of the following sample of water. If the purities of lime and soda are 80% and 85% respectively. The impurities are Silica mg/lit. CaSO4 = 68 mg/lit. MgCO3 = 884 mg/lit. CaCO3 = 120 mg/lit. 75 mg/lit. MgCl2 = 19 mg/lit. MgSO4 = 30 %3D %3D
- Order the following solids (a-d) from least soluble to most soluble: a. SrS04, Ksp = 3.2x10-7 %3D b. Ca3(PO4)2, Ksp = 1.3×10-32 c. PbI2, Ksp = 1.4×10-8 d. MnS, Ksp - 2.3x10-13 %3D Solubility:gage D Cisco Webex 9 Chemistry homewo... T Berry Cheesecake P. A Macmillan Launchp... SA Antiscience Beliefs J... O case studies 4brightspace P statlab -19, 25 [References] Use the References to access important values if needed for this question. What is the solubility of argon (in units of grams per-liter) in water at 25 °C, when the Ar gas over the solution has a partial pressure of 0.546 atm? ky for Ar at 25 °C is 1.40x10-3 mol/L-atm. g/L Submit Answer Try Another Version 1 item attempt remaining Not Visited earch 1O a hp 立C. Electrolytes in Body Fluids 1. Type of IV Solution 5% Isolute P (mEa/L) Plasnalyte (mEg/L) Lactated Ringer's (mEg/L) Nal+ = 130 Klt = 4 Ca2+ = 3 Nal+ = 25 K+ = 20 Nal+ = 140 Kl+ = 5 2. Cations %3D %3D Mg+ = 3 Mg2+ = 3 CI- = 22 HPO- =3 Acl- = 23 CI- = 98 Glu'-= 23 Acl- = 27 3. Anions CI'- = 109 %3D HPO = 28 %3D %3D 4. Total Charge of Cations (+) 137 137 5. Total Charge of Anions (-) 6. Sum of the Charges Copyright 2014 Pearson Education, Inc.
- Using the Al-Mg phase diagram below: Find the equilibrium freezing temperature range (AT) for an Al-10at% Mg alloy (Co=10%). The solute is Mg for this case. b. Find k and mL c. At a temperature of 580°C, find the CL, Cs, f₁ and fs. Temperature °C 8 600 500 400 300- 200- 100- 660.452°C 10 Al (AI) 10 20 450°C 20 30 Atomic Percent Magnesium 40 50 Al, MB₂ 30 40 Alu R 60 Al12Mg17 70 50 60 Weight Percent Magnesium L 70 80 437°C 80 90 90 100 650°C (Mg) 100 Mgesc It →➜ 1 Q A Estimate the boiling point (in °C) of 0.9995 molal Al(NO3)3, assuming that it dissolves entirely into Al3+ and NO3. Report your answer to 4 significant figures. Type here to search N H eTextbook and Media @ Hint Save for Later 12 N° 2 W S # X alt * 3 E 1410 D $ 4 °C IL C O R F % 克 5 T G 6 99 "7 4- Y & 7 hp U S V B N C+ * H J 8 49 1 M a 144 ( 9 K Attempts: 0 of 2 used Submit Answer All O O L f P C- ; alt 2->> { ^ @ ? + [ 1 = . insert } B 3 pause ctrl 4x 817 PM 9/7/2022 prt sc backspaceTo 500 g of K2Cr207 solution with a mass fraction K2Cr20, 5% added 300g of water. Determine the mass fraction of K2Cr207 in the resulting solution а. 32,5 % b. 10.91 % с. 8.76 % d. 1.107 % е. 3.125 %