room temperature, which of the following will decolorize potassium permanganate solution? i. 2-bromobutane ii. 1-propanol iii. 1-hexyne iv. chlorobenzene
Q: A 50-g sample of impure KClO3 (solubility = 7.1 g per 100 g H2O at 20 degrees C) is contaminated…
A: Since the sample is having 10 % KCl. Hence mass of KCl = 10 % of sample mass = 50 X 10 / 100 = 5 g…
Q: 33. The compound above would NOT be soluble in a. water b. hexane C. nonpolar solvents d. more than…
A: This is a part of solution chemistry which is explained below.
Q: Dissolve 1000 g of Potassium Iodide in 650 mL hot purified water using a 2 L capacity beaker. Allow…
A: Mass of Potassium iodide added = 1000 g Volume of Potassium iodide solution = 1 L = 1000 mL For…
Q: 0.150 mole of NaCl is dissolved into 246 grams of pure water. What is the mole fraction of NaCl? O…
A: there are two question,but student want to solve question-2, so i am solving question-2.
Q: In which of the following solvents would you expect KI to be most soluble? 1. C6H14 2. CCl4 3.…
A: A solution can be defined as the mixture that consists of two components; solute and solvent. Here…
Q: You have a solvent mixture of acetone (b.p. 56 ° C) and methyl alcohol (b.p. 65 ° C), what kind of…
A: Solvent mixture of acetone (b.p. 56°C) and methanol (b.p. 65°C) , their boiling points are close to…
Q: How much 32% (w/w) HCl should be diluted with deionized water to produce 100.0 mL of 5.0 M HCl…
A:
Q: Which of the following is NOT a distillation technique? Simple distillation O Density distillation…
A: Distillation is a technique in which the mixture of liquid can be separated.
Q: What is the vapor pressure of methylcyclohexane(g) above a aqueous solution of methylcyclohexane at…
A:
Q: Circle one of the following substances which would be most soluble in H2O?
A:
Q: Other common solvents include the alkane hexane and the ketone acetone. Which solvent (hexane,…
A: Given compounds: Hexane, Water, and Acetone Carbon tetrachloride (CCl4)
Q: 1. What mass (in g) of MnSO4•H2O is needed to prepare 50.0 mL of 350. ppm MnSO4 (d=1.00 g/mL)? (a)…
A: We know that, ppm = (mass of solute/volume of solution)x106
Q: Calculate the vapor pressure (in mmHg) above of solution containing 50.0 g of ethylbromide…
A:
Q: Avobenzone and dioxybenzone are two commercial sunscreens. Using the principles of solubility,…
A: First, the two given structures are analysed as follows, Observing the above shows that the…
Q: Determine which solvent is best for distinguishing the following pairs of chemicals based on their…
A: In solubility case one have to recall one parameter that is polarity. And polar compounds always…
Q: Powder small amount (1/2 teaspoon) of sugar in a mortar and pestle. Put the powdered sugar in one…
A:
Q: C. Electrolytes in Body Fluids 1. Type of IV Solution 5% Isolute P (mEa/L) Plasnalyte (mEg/L)…
A: Since the total charge of the cations in mEq/L = total equivalents of the cations And the total…
Q: 3)Find the number of mg NazCO3 (FW = 106 g/mol) required to prepare 500 mL of 9.20 ppm Na solution.…
A: Calculate the mass of Na present in the desirable solution. Parts per million = Mass of solute…
Q: 9. Which of these would you expect to be least soluble in water? The most soluble? Circle your…
A:
Q: Consider the following compounds. (i) Circle the compound that has the highest solubility in water?…
A: Solubility is the maximum amount of solute dissolved in per liter of solution. If the solubility…
Q: What will happen If you add two drops of nonpolar red dye to a 2 mL cyclohexane solution? * a red…
A: Concept: a non-polar molecules dissolve in a non-polar solvent because the two are attracted to one…
Q: Solubility or Miscibility (soluble or insoluble; miscible or immiscible) Compound Cyclohexane…
A: As no particular solvent is mentioned. so we are considering solvent water. I On basis of this…
Q: 2 Ba2+ (aq) + Cr20,2 (aq) + H2O (1) =2 BaCrO4 (s) + 2 H* (aq) Dichromate forms orange aqueous…
A: The equilibrium reaction given is,
Q: What is the level of heavy metal (in ppm) in a 3.89 kg sample that has 0.9 mg of the heavy metal…
A: PPM stands for parts per million. It is used when solute concentration is very very low.
Q: Question attached
A: The difference between chemical oxygen demand and biological oxygen demand has to be given,
Q: Based on the conductivity results of the C2H6O (ethanol) solution (after the addition of water),…
A:
Q: Calculate the vapor pressure (in mmHg) above of solution containing 50.0 g of ethylbromide…
A: Given : mass of ethylbromide = 50 gram. Mass of 1,2-ethanediamine = 19.964 gram.…
Q: Calculate the mass of BaCrO4 (Ksp = 8.50×10-11) which will dissolve in 100 ml of water.
A: We’ll answer the first question since the exact one wasn’t specified. Please submit a new question…
Q: How much nh3 would dissolve in 100 g of water at 40°c?
A:
Q: Which substance has the greatest tendency to participate in a chemical reaction with small chain…
A:
Q: Without being heated, I could dissolve more sugar into sweet tea that is... Question 7 options:…
A: A saturated solution contains maximum amount of solute dissolved in solvent. Further dissolution of…
Q: Why should you wash your crystals in ice cold solvent after recrystallization? a. Ice is polar, so…
A:
Q: Soluble in: Cold Hot 3M 3M water HCI NaOH water Yes No Benzoic acid Mg(OH)2 NazSO4 Zn(OH)2 No No Yes…
A: Answer According to given table Mg(OH)2 does not react with 3M HCl…
Q: OH I II III IV
A: Solubility depends upon the effectiveness of hydrogen bonding.
Q: Barium sulfate is a contrast agent for X-ray scans that are most often associated with the…
A:
Q: 9. Which of the following molecules is the least water soluble? НО. ОН Н НО `NH2 dopamine Н a. НО…
A:
Q: What volume of 1.5M HBr solution is needed for a reaction that requires 2.0g HBr
A: The molarity is the concentration term that is defined as the number of moles of solute dissolved…
Q: What is the solubility of trans-1,2-dichloroethylene(g) in water at 35�C and a partial pressure of…
A: Henry's law constant (KH) = 15.702 L atm mol-1 Partial pressure (p) = 9.031 x 10-1 mm Hg…
Q: Table 1. Solubility Tests. Functional Group Observations (specify type if any) Sample in…
A: Introduction: We have to tell the observations for the following reactions taking place.
Q: Which organic solvent would be most soluble in water? Select one: O a. CH,CH, CH,CH,CH, CH, o b. CH,…
A:
Q: Arrange the following compounds from most soluble to least soluble in water. I. methanol II.…
A: A solubility of alcohols in water mainly depends on hydrogen bonding between water. As hydrogen…
Q: Both Fehling’s and Benedict’s solutions are a reagent used to differentiate aldehydes from ketones…
A:
Q: Calculate the water solubility of silver chloride in g/L. The Ksp is 1.8x10-¹⁰ a the MW 143.4 g/mol.…
A: Given, Ksp of silver chloride is 1.8×10-10 Molecular weight of silver chloride = 143.4 g/mol
Q: solute Which is the better solvent? :0: CH,-S. CH3 :0: :0: - НО — С — СН, — СН, — С — он CH,CH,OH…
A: The solubility of a solute in a particular solvent depends on the nature of the solute and the…
Q: A 1.2000 g sample of (NH4)2Ce(NO3)6 (548.23 g/mol) is dissolved in water and diluted to 100.0 mL.…
A: Given the mass of (NH4)2Ce(NO3)6 dissolved = 1.2000 g Molar mass of (NH4)2Ce(NO3)6 = 548.23 g/mol…
Q: Arrange these compounds by their expected solubility in hexane, C,H,14. Most soluble in hexane Least…
A: Hexane is organic solvent. Organic compounds (less polar compounds) are soluble in hexane. Water is…
Q: Calculate grams of sucrose that must be added to 432.3 grams of water to prepare a 8.48 % by mass…
A:
Q: About 21.60 mL of 0.9944N sodium hydroxide solution required 20.40 mL of hydrochloric acid solution.…
A: Given information: 21.60 mL of 0.9944 N sodium hydroxide (NaOH) requires for 20.40 mL of…
Q: If you have 13.5g of Cl2 and dissolve in 1.5 L. of cyclohexane what is molality of solution, density…
A: Molality of solution is defined as the number of moles of solute present in 1 kg of solvent. Number…
Q: Calculate the vapor pressure (in mmHg) above of solution containing 50.0 g of ethylbromide…
A:
At room temperature, which of the following will decolorize potassium permanganate solution?
i. 2-bromobutane
ii. 1-propanol
iii. 1-hexyne
iv. chlorobenzene
Step by step
Solved in 2 steps with 1 images
- How do we separate the benzoic in the last part of the experiment after precipitating with HCI? O A. Cobndensation O B. Distillation O C. Vacuum Filtration O D. EvaporatingBelow is visible light spectrum and the UV-Vis spectrum for a cobalt (II) solution. Determine the color of a cobalt (II) solution? Epsilon is molar absorptivity and lambda is wavelength in nanometers. 740-625 625-590 590-565 565-520 520-500 500-435 435-380 Wavelength (nanometers) Co 3. 300 400 500 600 700 800 A. pink to violet B. Orange to yellow C. Blue to ligght blue D Green to yellowReagents a. CeHsCHO b. NaOH, ethanol c. Pyrrolidine, cat. H* j. Brz, H* d. H2C=CHCN e. H3O* f. h. BRCH2CH=CH2 i. Na* OEt, ethanol k. K* t-Buo I. CH2(CO,Et)2 m. heat CH2CH2CN LDA g. ELOC(=0)COEt Select reagents from the table to synthesize this compound from cyclopentanone. Enter the letters of the chosen reagents, in the order that you wish to use them, without spaces or punctuation (i.e. geda).
- 15. Organic compound X is oxidized to 2,3-dihydroxypropionic acid. Compound X is: A. propanol, B. propanal, X + Cu(OH)₂2 →→ Cu₂O + H₂O + HO-CH₂-CH(OH)-COOH C. 1,2,3-trihydroxypropan, D. 2,3-dihydroxypropanal, E. glicerolO d. Ethanol If you have 1-propanal (b.p.-97 °C and methanol (b.p. = 65 °C the best technique to separate these two alcohol is O a. steam distillation Ob. Fractional distillation Oc. simple distillation Od. vacuum distillation VBIHSO B/O 4 5 8. H i J 6. V NIM IS ALT GR 14 ).42. Pay attention to the formula of aloe vera extract lipbalm (Aloe vera.L): Glycerin 5% Cera flava 10% Nipagin 0.18% Lanolin 15% Oleum cacao ad 100% Aloe vera extract 10% The active ingredient in the formula is .... A. glycerinB. oleum cacaoC. aloe vera extractD. cera flava 43. The effect of using ascorbic acid in cosmetics with a concentration of 50% of the total preparation is …. A. can cause skin irritationB. provides optimal effect on skin youthC. increase ROS in the bodyD. Brighten the skin optimally
- 1. Alcohols X and Y formed layers with Lucas reagent. Compound X formed brown precipitate with KMnO4 while compound Y did not. Which are the possible identities of compounds X and Y? a.tert-butanol, propanol b.isopropanol, isopentyl alcoholc. methanol, ethanold.tert-butanol, isopropanol2. Alcohols that cannot be distinguished using the Lucas test? a.isopropanol and methanol b.t-butyl alcohol and ethanol c.t-butyl alcohol and 2-methylbenzyl alcohol d.ethanol and n-propanolFill in the appropriate products for the giving starting materials and reagents. Na Cr,0, H.O 1. Hg(OAc),, H,O PCC 2. NABH,compound d NaCN, SN2 compound f compound c Reagents HBr 2 equivalents of NaNH2 H2, Lindlar's catalyst Na / NH3 H2SO4, H9SO4 NaCN, SN2 m. a. b b. HBr, H2O2, hy n. c. H2O, H2SO4 d. Br2 O. compound b compound e р. е. Cl f. Н2. Pd (sia)2BH then H2O2, NaOH 1 equivalent of NaNH2 q. r. g. Br2, H2O S. NBS, hv compound a h. Cl2, H2O i. t. Br2, hv OsO4 then NaHSO3 Cl2, hv u. j. Hg(OAc)2, H20 then NaBH4 HCI V. k. BH3 then H2O2, NaOH Og then (CH3)2S w. (CH3);CO"K* I. The above synthesis was designed using the Organic Chemistry Roadmaps in the appendix of your textbook. In this synthesis, reagents from the table are used to carry out the indicated steps (shown in blue). In the box below, draw the structure of compound e. • Use the wedge/hash bond tools to indicate stereochemistry where it exists. • If there are alternative structures, draw the most stable one. • If the reaction produces a racemic mixture, draw both stereoisomers. Separate structures with + signs from the drop-down menu.
- Arrange the following compounds in the order of increasing solubility in water (least first). CH;CH2CH2CH,OCH; CH;OCH; I II CH,OCH,CH,OCH, CH,CH,CH;CH,CH,OH II IV O A. I, I, I, IV B. II, I, IV, II C.I, IV, II,II D. IV, I, I, I Which structures have the correct IUPAC names? * CH; CH3 Cl Br Br I. 2-bromotoluene II. para methyl, meta chloro bromobenzene NO2 OCH; `Cl ČH,CH, IV. para ethylanisole III. meta chloroaniline III,IV 1,IV O II,IIB Brock Sakai : CHEM 1P91 - Fall X b My Questions | bartleby ChemTeam: Combustion Analys x G what is the oxidation number o X + Ims.brocku.ca/portal/site/90b45528-0b04-4bd2-85b6-897046a1e998/page/7011eaa9-4e38-4b06-9e15-1973abb58ef6 Version 264 Assign 4 1 / 2 100% + 5. An organic compound containing only C, H, and possibly O was subjected to combustion analysis. A sample weighing 0.4161 g yielded 0.686 g CO2 and 0.187 g H2O. What is the empirical formula of the compound? 6. For the complete redox reaction given here, (a) break down each reaction into its half reactions; (b) identify the oxidizing agent; and (c) identify the reducing agent. 2 FeCl3 + Zn –→ ZnCl2 + 2 FeCl2 Give the oxidation number of nitrogen in each of the following compounds or ions: (a) Li3N 7. (b) Mg(NO2)2 (c) N2O3 (d) N2H2 (e) NO3 CHEM 1F92 Assignment 4. Stoichiometry, Oxidation-Reduction 8. Consider the following net ionic equation for a redox reaction: 2 MnO4 + 2 H,O+ →2 MnO4¯+ 2 OH¯ + H2 (a) Which reactant gets…compound c compound f Reagents compound e a. HBr m. 2 equivalents of NaNH2 b. HBr, H2O2, hv H2, Lindlar's catalyst Na / NH3 H2SO4, H9SO4 (sia)2BH then H2O2, NaOH n. m c. H2O, H2SO4 d. Br2 e. Cl2 f. H2, Pd g. Br2, H20 h. Cl2, H2O i. O. d. compound b compound d p. q. 1 equivalent of NANH2 r. S. NBS, hv compound a Br2, hy Cl2, hy t. Os04 then NaHSO3 j. Hg(OAc)2, H2O then NaBH4 k. BH3 then H2O2, NaOH I. u. V. HCI w. (CH3)3CO'K* Og then (CH3)2S The above synthesis was designed using the Organic Chemistry Roadmaps in the appendix of your textbook. In this synthesis, reagents from the table are used to carry out the indicated steps (shown in blue). In the box below, draw the structure of compound c.