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11. A 101.3-mg sample of an organic compound known to contain Cl is burned in pure O2 and the combustion gases collected in absorbent tubes. The tube used to trap CO2 increases in mass by 167.6 mg, and the tube for trapping H2O shows a 13.7-mg increase. A second sample of 121.8 mg is treated with concentrated HNO3 producing Cl2, which subsequently reacts with Ag*, forming 262.7 mg of AgCl. (MM of C = 12.01 g/mol , O = 16.00 g/mol, CI = 35.45 g/mol, H = 1.008 g/mol, AgCl = 143.32 g/mol). Determine the: %3D

Peak A has a height of 150 mm and a width at half height of 8.5 mm. Peak B has a height of 116 mm and a width at half height of 7 mm. What would the % composition of Peak A be? Please give your answer as a whole number and do not include "%". Question 8 Peak A has a height of 98 mm and a width at half height of 8 while peak B has a height of 101 and a width at half height of 10. What is the percent composition of peak B? Please give your answer as a whole number and do not include "%".

The chemical reaction to make acetylsalicylic acid (aspirin) is shown below. C7H6O3 + C4H6O3 ----> C9H8O4 + C2H4O2 salicylic acid + acetic anhydride ----> acetylsalicylic acid + acetic acid Answer the following questions regarding this reaction. a. If you weighted 3.65 g of salicylic acid, how many grams of aspirin would be created? Use correct number of significant figures, do not write units, write numbers only. b. If the average percent yield of this type of reaction is 95%. How many milligrams of salicylic acid do you need to weight to make 325 mg (an adult dose) of aspirin tablet? Use correct number of significant figures, do not write units, write numbers only.

1. HNO3, H₂SO4 2. PCC 3. Na₂Cr₂O7, H₂SO4 4. Br₂, FeBr3 5. PBr3 6. H₂C=0 7. 1. LIAIH4 2. H3O*, H₂O 8. HBr 9. H₂O, H* 10. CH3CH₂CH₂CI, AICI3 11. CH3CH₂CH=PPh3 12. Zn-Hg, EtOH, HCI 13. Li, THF 14. 1. CH₂CH₂CH₂MgCl 2. H₂O, H* 15. KMnO4 16. HOCH₂CH₂OH, H₂O* 17. CH3CH₂OH, H* 20. 1. BHs 2. HzOz, NaOH 21. CH3CH₂CH₂Br 18. 1. 2 CH3Li 2. HyO*, H,O 19. 1. CH,CH,CH,Li 2. HyO*, H2O

Peak A has a height of 136 mm and a width at half height of 8.8 mm. Peak B has a height of 113 mm and a width at half height of 8 mm. What would the % composition of Peak A be? Please give your answer as a whole number and do not include "%".

1. 2. OCH3 + 1. NaOEt 2. CH₂CH₂Cl 3. NaOEt 4. CH₂Br 1. LiAlH, OCH3 NaOCH3 H₂O

I need some help on finding -Molar ratio -Theoretical and percent yield -The limiting reagent I have recovered a total of 0.2628g of Isopentyl acetate

__K2S(aq) + __H3PO4(aq) ® __K3PO4(aq) + __H2S(g) 1. The K2S can make _______ mmol of H2S                                           2. The H3PO4 can make _______ mmol of H2S 3. The limiting reagent in this mixture is _______

2 HC2H3O2 + K2CO3 --> H2O + 2 KC2H3O2 + X If the 108 molecules of HC2H3O2 react with 74 molecules of K2CO3, the number of molecules of the excess reagent left over is  A. zero B. 20 C. 34 D. 54 E. there is no excess reagent

10. Which of the following is a molecular compound? Group of answer choices A. Fe B. AlCl3 C. CuSO4 D. C3H6O   2. What color was the acetylsalicylic acid? Group of answer choices A. yellow B. green C. white D. red E. blue

35. Given 10g of MgCl2 and 16g of AGNO3 and an actual yield of 1.099g of AgCl. How much excess reagent REMAINS UNUSED after the reaction? Rxn: _MgCl2 + _A9NO3 - >_ AgCI + _Ma(NO3)2 11.21 g 5.51 g 7.01 g 2.51 g None of the above

How many grams of NH3 can be produced by mixing 14 g of N2  with 6.0 g of H2? Given:                                   N2         +          3 H2    ------>        2 NH3   a.) 20g b.) 17g c.) 34g d.) 51g

2 Fe + Oz →2 FeO 1. The numbers in red boxes are... A. subscripts B. coefficients C. reactants D. products 2. The chemicals in the purple box are... A. subscripts B. coefficients C. reactants D. products

Suppose 7.5 g of Compound A are consumed in a rection with excess 1.5 g of Compound в that produces only one product, Compound c. Calculate the theoretical yield of C. Round your answer to the nearest 0.1 g. Suppose 3.8 g of C are actually isolated at the end of the reaction. What is the percent yield of Compound C? Round your answer to the nearest whole percent. 0 % ロ･ロ X S

35. Given 10g of MgC12 and 16g of AGNO3 and an actual yield of 1.099g of AgCl. How much excess reagent REMAINS UNUSED after the reaction? Rxn: _MgC12 +_AGNO3 - >_ AgCI + _Mg(NO3)2

3. Please use the balanced reaction and table provided below to answer the following questions: Reagent or A + B → C M.W. (g/mol) Density Product A 65.89 0.763- g cm³ B C 98.23 1.12- g cm3 164.12 N/A (a) [5 pts] Determine the theoretical yield of product C if 180 mg of A was reacted with 3.00 mL of B. (*Hint: mL = 1 cm³). Must show all work for full credit. (b) [3 pts] Determine how many mL of B are required to react with 250 mg of A at a 1:1 molar equivalent. (*Hint: you want the same number of mols for both A and B for a 1:1 equivalent). (c) [2 pts] Determine the percent yield if the theoretical yield is 210.9 g and the actual yield is 189.3 g.

kindly answer a and b. show complete solution. thank you.

What is the condesed formula of this?

Match the product(s) with the reactant(s). 0 5 H₂C H₂C Gha Chy CHO CHO +HO LOH, THO 1. 3. 4 F.C H₂C H₂C 160 CH₂ H.O. CH₂ CH CH₂ CH CH₂ Cha CH₂ OH Cha CHO NH CH₂ CH + HO OH Asf H₂C H.G OH H₂ TOH NH₂ OH

What are the values for % Cl and % F, respectively, for Sample II?A. 0.622 and 61.65 C. 38.35 and 0.622B. 61.65 and 38.35 D. 38.35 and 61.65

5. a. What is % w/w when 15.5 grams of C6H12O6 dissolves in enough water to make 251 grams of solution? b. Determine mass of the solvent. 6.A What is % w/v when 15.5 ml of C₂H5OH (density = 0.785 g/ml) dissolves in 251 grams of water? B What is % w/w when 15.5 ml of C₂H5OH (density = 0.785 g/ml) dissolves in 251g of solution? CWhat is the molarity of solution, when 15.5 grams of C₂H5OH dissolves in enough water to make up 251 mL of solution? DCalculate ppb and ppm of the above solution 10. Show your calculation for preparation of 230.0 mL of 0.265 M sodium hydroxide solution from 0.850M sodium hydroxide.

One mole of a compound weighs 2.93x10-22. Determine the molar mass (g/mol). Group of answer choices 134g/mol 176g/mol 122g/mol 22.7g/mol

Consider the responses listed below. Compound II is almost certainly going to be: Mg 1. ether Br ether H3C CH3 2. H30* IV

11b

A lotion vehicle contains 15% w/ of glycerin (sp gr 1.25), How much glycerin should be used in preparing 5 gallons of the lotion? a. 2271 g glycerin b. 3339.7 mL glyccrin c. 2671.8 g glycerin d. 3548.+ g glycerin

A: 3. MgBr 1. H3C 2. H3O+ Na₂Cr₂O7 H₂SO4 A 1. 2. H30* 1. PhMgCl 2. H30* OH CH3 ОН B B: OH CH3

Select one or more: a. CC14 ☐ b. S0₂ CO₂ O d. CH₂Cl2 1 C. H 1.008 3 Li 6.94 11 4 Be 9.012 12 Na Mg 22.990 24.305 5 B 10.81 13 6 14 7 N 15 8 O 16 9 F 17 CI Al Si 26.982 28.085 30.974 32.06 35.45 2 He 4.003 10 Ne Which of the following compounds is/are polar? You may choose one or more compounds. If there are more than one correct choices, partial points will be given for each correct answer. An incorrect choice will negate all points obtained from the correct choice(s). 18 Ar 39.948

Supply the missing compounds A through G. В A ОСН3 2. Н.О, НCІ 1. C 2. NHẠCI 1. DIBAH NaOH, A NaBH4 PBr3 E ELOH 1. NaOH NH 2. E+ 3. NaOH, A 1. CH31 (еxcess). F 2. Ag20, H2O 3. Д Same compound as above G

1. Calculate the theoretical yield of cyclohexene, based on the amount used in your  experiment. 2. Calculate the percent yield for your experiment. The chemist produced 8.34 mL of cyclohexene 3.If either the percent yield or percent recovery is less than 60% discuss possible reasons for the low yield/recovery and suggest improvements that a chemist could make to the synthesis to increase the yield or recovery.

kind answer a-d if possible. thank you.