calculate the theoretical percent purity of the purified crystal 12 g A9.2 g BHOT FILTRATIONfiltrateresidue8 g A7.2 g B4 g A2 9 BCOLD FILTRATIONfiltrateprecipitate5.4 g A6.0 g B2.6 g A1.2 g B

Purified crystals are usually obtained via hot filtration method. Given: Initial mass of A = 12 g…

Answered: calculate the theoretical percent…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter15: Solutions

Section: Chapter Questions

Problem 38CR

See similar textbooks

Similar questions

A soft drink contains an unknown mass of citric acid, C3H5O(COOH)3. It requires 6.42 mL of 9.580 × 10−2-M NaOH to neutralize the citric acid in 10.0 mL of the soft drink. C3H5O(COOH)3(aq) + 3 NaOH(aq) → Na3C3H5O(COO)3(aq) + 3 H2O(ℓ) Determine which step in these calculations for the mass of citric acid in 1 mL soft drink is incorrect? Why? n (NaOH) = (6.42 mL)(1L/1000 mL)(9.580 × 10−2 mol/L) n (citric acid) = (6.15 × 10−4 mol NaOH) × (3 mol citric acid/1 mol NaOH) m (citric acid in sample) = (1.85 × 10−3 mol citric acid) × (192.12 g/mol citric acid) m (citric acid in 1 mL soft drink) = (0.354 g citric acid)/(10 mL soft drink) Determine the correct result.
A student was able to separate the three components of a mixture via liquid chromatography. She obtained 1.27 g1.27 g of component A, 0.950 g0.950 g of component B, and 0.260 g0.260 g of component C. Determine the mass percent of each of the three components in the mixture.
Consider the reaction. 2Al(s)+Fe2O3(s)−→−heatAl2O3(s)+2Fe(l)2Al(s)+Fe2⁢O3⁡(s)→heatAl2⁢O3⁡(s)+2Fe(l) If 18.3 kg Al18.3 kg Al reacts with an excess of Fe2O3,Fe2⁢O3, how many kilograms of Al2O3Al2⁢O3 will be produced? mass of Al2O3Al2⁢O3 produced:
Q1. Convert the glucose concentration of a drink containing 1.750mM of glucose from mM (millimolar) to g/100 mL with a 1/100 dilution factor. molar mass of glucose which has the formula C6H12O6
Aspirin can be prepared from salicylic acid (C7H6O3 ), which has a molar mass of 138.12 g/mol, and acetic anhydride (C4H,O3 ), which has a molar mass of 102.04 g/mol. The density of acetic anhydride is 1.082 g/mL. C7H6O3 + C4H;O3 → C,H§O4 + C2H3O2 What is the theoretical yield, in grams, of aspirin ( C9H3O4 ), which has a molar mass of 180.15 g/mol, possible when reacting 3.06 g of salicylic acid with 3.71 mL of acetic anhydride? Type answer:
Balance thechemical equation _CaCl2 (aq) + _Na2CO3 (aq) ------->_CaCO3 (s) + _NaCl (aq) Identify type ofreaction _NaCl (aq) + _AgNO3 (aq) -------->_NaNO3(aq) + _Agcl (s) Identify type ofreaction
(98) 101.1 102.9 106.4 107.9 112.4 114.8 118.7 121.8 56 57 72 73 74 75 76 77 78 79 80 81 82 83 Cs Ва La Hf Ta W Re Os Ir Pt Au Hg 197.0 200.6 204.4 TI Pb Bi 132.9 137.3 138.9 178.5 180.9 183.9 186.2 190.2 192.2 195.1 207.2 209.0 87 88 89 104 105 106 107 108 109 110 111 112 113 114 115 Fr Ra Ac Rf Db Sg Bh Hs Mt Ds Rg (269) (277) Cn Uut F1 Uup (2 (223) (226) (227) (261) (262) (263) (264) (265) (268) (269) (289) Lanthanide Series 58 59 60 61 62 63 64 65 66 67 68 69 70 Ce Pr Nd Pm Sm Eu Gd Tb Dy 162.5 Но Er Tm Yb 140.1 140.9 144.2 150.4 152.0 (145) 93 157.3 158.9 164.9 167.3 168.9 173.0 17 Actinide Series 90 91 92 94 95 96 97 98 99 100 101 102 11 Th Pa U Np (237) Pu Am Cm Bk Cf Es Fm Md No 232.0 231.0 238.0 (244) (243) (247) (247) (251) (252) (257) (258) (259) (20 Question 2 Which of the following statements about atomic spectra is incorrect? O No two elements have identical atomic spectra O An electron dropping between two specific energy levels always emits the identical spectral line O…
Aspirin can be prepared from salicylic acid (C7H6O3), which has a molar mass of 138.12 g/mol, and acetic anhydride (C4H6O3) which has a molar mass of 102.04 g/mol. The density of acetic anhydride is 1.082 g/mL. C7H6O3+C4H6O3⟶C9H8O4+C2H4O2 What is the yield, in grams, of aspirin (C9H8O4), which has a molar mass of 180.15 g/mol, possible when reacting 2.10 g of salicylic acid with 1.01 mL of acetic anhydride?
A solution is prepared by dissolving 4.40 g of KSCN in enough water to make 340. mL of solution. What is the concentration (molarity) of the solution? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). BIUS Paragraph v Arial EX² X₂ ¶ ¶< +₁ V 10pt √ ¶T E v 田く T HH 26
In a clean and dry crucible with cover weighing 24.342 g some of the unknown hydrate (CuSO4.nH2O) was placed in the crucible to reach a mass of 27.557 g. The crucible was heated several times until it reached a final constant mass of 26.403 g. Use these measurements to complete your data sheet and show complete calculation for the missing values.
In the "Methodé Champenoise," grape juice is fermented in a wine bottle to produce sparkling wine. The reaction is )) C6H1206(aq) → 2C2H50H(aq) + 2C02(g) Fermentation of 750. mL of grape juice (density = 1.0 g/cm3) is allowed to take place in a bottle with a total volume of 825. mL until 12.5% by volume is ethanol (C,H;OH). Assuming that the Co, is insoluble in H,0 (actually a wrong assumption), what would be the pressure of CO, inside the wine bottle at 25°C? (The density of ethanol is 0.79 g/cm3)
B. Percentage of Water in an Unknown Hydrate CUC2·X H20 UNKNOWN # mass of beaker and watchglass + unknown hydrate (before heating) 123.02 123.02 mass of beaker and watchglass 121.98 122.01 mass of unknown hydrate 122.81 122.78 mass of beaker and watchglass + anhydrous compound (after heating) nass of water (before heating - after heating) Show the calculation for the percentage of water for trial 1 (see Example Exercise 2). Percentage of water in the unknown hydrate Average percentage of water C. Water of Crystallization in an Unknown Hydrate 170.48 g/mol molar mass of anhydrous compound (AC) (see Instructor) percentage of water (see Procedure B) percentage of anhydrous compound (AC) Show the calculation for the water of crystallization (see Example Exercise 3). Water of crystallization НО AC• (Based on how rounding goes at various parts of this, there are two possible answers that I'll consider correct. Just put Formula of hydrate Analysis of Alum 138 down one of them.) 60

SEE MORE QUESTIONS

Recommended textbooks for you

Introductory Chemistry: A Foundation

Chemistry

ISBN:

9781337399425

Author:

Steven S. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

General Chemistry - Standalone book (MindTap Cour…

Chemistry

ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

Introductory Chemistry: A Foundation

Chemistry

ISBN:

9781337399425

Author:

Steven S. Zumdahl, Donald J. DeCoste

Publisher:

Cengage Learning

General Chemistry - Standalone book (MindTap Cour…

Chemistry

ISBN:

9781305580343

Author:

Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell

Publisher:

Cengage Learning

Chemistry: The Molecular Science

Chemistry

ISBN:

9781285199047

Author:

John W. Moore, Conrad L. Stanitski

Publisher:

Cengage Learning

SEE MORE TEXTBOOKS