You would like to create a 50ml bottle of Eau de toilette at a concentration of 8%. You would like to target an alcohol volume of 80%, using an initial alcohol volume of 96%. How much alcohol and water (if applicable)
Q: Using Roman numerals (i.e., "I" "II" and "III"), rank the following carbonyl stretches from highest ...
A:
Q: Choose the response that lists the member of each of the following pairs that has the higher boiling...
A: (i) H2O or KI KI is an ionic compound and it has boiling point always higher than water.
Q: Why does the temperature remain constant during a phase change? The heat added during a phase change...
A: Given that : We have to identify the reason why the temperature remain constant during a phase chang...
Q: Calculate the normality of sulfuric acid has a density of 1.84 g/cm3 and is 95.0% (w/w) H2SO4. Mwt f...
A:
Q: At what temperature (in °C) will a solution in which 66.28 grams of iron (III) chloride has been add...
A:
Q: ammonium chromate molybdenum (VI) dichromate rhenium (IV) hydroxide disilicon octabromide iron (II) ...
A:
Q: How many clarification of water. O Three. O Two. O Four.
A: The types of water clarifiers is given below
Q: 7.19 The formation of a buffer solution is an example of the common-ion effect. Explain how a buffer...
A:
Q: Analyze the spectral data for 4-cyclohexene-cis-1,2-dicarboxylic acid 1. Assign the peaks in the r...
A: solution is shown below.
Q: Which of the following transitions is the fastest step for the energy diagram of a multi-step reacti...
A: A faster reaction should have lowest activation energy.
Q: (Q66) At what temperature (°C) will a solution that contains 70.4 grams of the nonelectrolyte ethyle...
A: Mass of ethylene glycol = 70.4g Mass of water = 632 g Boiling point of pure water = 100°C
Q: 10. Which of the following will hasten the rate of a reaction? * A. adding a catalyst B. diluting th...
A: Since you have posted multiple questions,we will solve first three questions for you . To get the re...
Q: Phosphorus pentachloride decomposes according to the chemical equation PCI, (g) = PCI, (g) + Cl,(g) ...
A:
Q: A chemist vaporizes a volatile hydrocarbon (carbon and hydrogen) liquid compound to gas • and determ...
A:
Q: Which of the following is arranged CORRECTLY according to the number of protons? O Na* > Mg?+ > F O ...
A: Given, Na+, Mg2+, F We know that, Number of protons = atomic number
Q: Sodium is an artificial isotope with a half-life of 2.6 years a.) How many protons are in an atom o...
A: Given Sodium-22 is an artificial isotope with a half life of 2.6 years. a) Number of protons are in ...
Q: Are roots organs or organ systems
A: The plant tissues form organs like leaves, stems, or roots, each of which performs a specific set of...
Q: alculate the osmotic pressure (in atm) of a solution containing 2.38 grams of sucrose (C12H22O11) in...
A:
Q: How many indictors using in alkalinity titration. O Three. O Two. O Four.
A: Given that : We have to identify the number of indicators used in alkalinity titration.
Q: The normal boiling point of a certain liquid X is 141.40 °C, but when 20. g of glycine (C,H,NO,) are...
A: To calculate molal boiling point elevation constant , we first find moles and than molality.
Q: How many grams of glucose are needed to prepare 400. mL of a 2.0%(m/v) glucose solution?
A: The amount of glucose needed to prepare 2%(m/v) glucose solution is given below
Q: Titrant is usually in. O In buret. In a conical flask. O In beaker. O O O
A: Titration is a method to determine the concentration of an unknown solution by using the solution of...
Q: 8.00 mL of 4.00 x 10-3 M Fe(NO3)3 (4.00 times 10 to the minus 3rd power M F e (NO3)3) is added to 4....
A:
Q: All 'H NMR data shown as xxx ppm (splitting)., integration. 3.17 ppm (s), 3 7.42 ppm (d), 2 7.30 ppm...
A: A H-NMR peak data sheet is given and we have to identify the molecule . We know that for aromatic pr...
Q: Give the ozonolysis equation for the diene given to you.
A: Ozonolysis is a chemical reactions in which alkene double bond react with ozone and form carbonyl co...
Q: PRovide the products (with appropriate sterochemistry when necessary) for the reaction
A: This is an example of condensation reaction where two alcohol molecule react to form ether via the l...
Q: Ilmenite (VITiVIFeO3) has an HCP stacking of oxygen layers. What fraction of the possible octahedral...
A:
Q: 7.9 Which of the following oxides are likely to be acidic, basic or amphoteric in aqueous solution: ...
A:
Q: [Ar 4s²3d¹⁰4p⁶] a.) What is the name of the element b.) How many electrons does it contain in s orbi...
A:
Q: QUESTION 12 The highly toxic "antifreeze" has the formula C2H602. In your chemistry assignment you h...
A:
Q: 7. Which of the following ions has the highest ion mobility in aqueous solution at 298 K? O a) [SO,]...
A: Ion mobility means the average movement of an ion.
Q: 6) How many grams of cobalt is produced when 3.56 g of cobalt (II) oxide and 3.69 g of aluminum are ...
A:
Q: Prepared 1 M of HCL in 1000 ml, that density is 1.19 g/cm3 and percentage w/w is 37 %, Mwt is 36.5? ...
A: The following equation can be used to determine the required volume to prepare 1M HCl in 1000 mL, Re...
Q: The osmotic pressure of a solution containing 33.8 mg of an unknown protein dissolved in 7.01 mL of ...
A:
Q: 1. In a neutralization reaction of I, + S,O,²- = |- + S,0,2- which relation is correct? * (a) V1N1/2...
A:
Q: niobium (V) permanganate iridium (IV) nitrate diarsenic decachloride potassium cyanide barium hydrox...
A: Ionic compounds can make ions.
Q: Consider the reaction: 2N205(g) → 4NO2(g) + O2(g) At a particular temperature, the rate constant is ...
A:
Q: Topic : Phase Define the term phase, component and degree of freedom with suitable examples
A:
Q: What is the Ep (Destabilization Energy) of the following chair form? OH
A: {3} axial CH3: 1.70 kcal/mol 2 axial OH: 0.87+0.87= 1.74 ED= 3.44 Kcal/mol (4) eq. CH3: 0 ...
Q: (R)-proline OH Et (cat.) DMF, 0-RT Et" "Et Et OH
A:
Q: 1.2 (i) pH y Volume (mL) of 0.1 M NaOH m n Above is the titration curve of a weak acid (200 mM aceti...
A: Here weak acid, acetic acid (CH3COOH) is titrated with a strong base, NaOH. The balanced equation f...
Q: How many electrons can have the following set of quantum numbers? n= 4, 1 = 3, m, = -1/2 O 2 O 8 O 3...
A:
Q: (Q68) What mass (in grams) of ethylene glycol (C2H6O2) must be added to 1,296 grams of water to lowe...
A: Solution is made up of solute and solvent. Solute is present in small amount and solvent is present ...
Q: Discuss why water molecule has a high boiling temperature compared to other similar compounds such a...
A:
Q: Consider the reaction. 2 A(g) = B(g) Kp = = 2.48 x 10-5 at 500 K If a sample of A(g) at 2.50 atm is ...
A:
Q: А. 3-methylpentane, considering rotation about the C-2, C-3 bond. 3-methylhexane, considering rotati...
A: Here, we have to draw the most stable conformers of 3-methylpentane and 3-methylhexane.
Q: Which of the following properties indicates the presence of strong intermolecular forces in a liquid...
A: Answer - The correct option is (a) Explanation - Intermolecular force - An intermolecular force is t...
Q: e) OH OH 1. 2.
A:
Q: a) b) OH CH3 Br
A: The IUPAC name of the above compounds are given below
Q: Calculate n initial for the wavelength 434.0nm the n final is 4 also calculate the energy emitted by...
A:
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
- The distillation flask is best completely filled with mixture as large as available never less than half empty about 70% fullThe alcohol content of hard liquor is normally given in terms of the “proof,” which is defined as twice the percentage by volume of ethanol (C2H5OH) present. Calculate the number of grams of alcohol present in 1.00 L of 75-proof gin. The density of ethanol is 0.798 g/mL. Round off to 4 sig. figures for all calculations made prior to final answer and the final answer should be in 3 sig. figuresPlease answer the question at the bottom. Fractional distillation Measure 55 mL of 40% ethanol Place 50 mL of ethanol in your distilling flask taking care that no liquid enters the side arm. Place the remaining 5 mL of ethanol in a test tube and set aside for procedure 2. Add a few marble or porcelain chips to the distilling flask to prevent bumping. Bumping is a term given to irregular boiling Assemble the rest of the apparatus for a simple distillation set-up. You may ask assistance from your instructor Cover the top of the distilling flask with a cork fitted with a thermometer. Make sure that the tip of the thermometer bulb is just below the side arm of the distillation flask Check all connections for tightness Heat the contents of the flask to boiling. Adjust the flame when the sample is already boiling. Make sure that it does not boil to dryness. Note the temperature of the first drop. Collect 60 drops of distillate per test tube. You will need 5 test tubes, thus five…
- please quickly thanks ! Please draw out the apparatus illustration for normal distillation and key points in this processUsing an isopropyl alcohol, put a few drops on your palm then rub the area for a fewseconds. What is your observation? Apply the same procedures using any vegetableoil and water. What property of alcohol was exhibited relative to the vegetable oil and water? Elaborate your answer.Procedures: 1. Take 4, 500 ml of conical flasks, number them as 1,2,3,4. 2. Weigh 50g of sand to each of the 4 conical flasks. 3. Accurately weigh 5g of pure Na2CO3 and put it in each conical flask. Now each conical flask has 50g of sand and 5g of Na2CO3, Mix well. 4. Add 15 ml of water to each conical flask to wet the solid. 5. Measure and pour 50 ml, 100 ml, 150 ml, and 200 ml of water into the conical flasks 1,2,3,4 respectively. From procedures above in leaching experiment, we are using sodium carbonate as a solvent. A. True B. False
- Use an apparatus similar to that shown and assume that the round-bottom flask holds 10 mL and that the Claisen head has an internal volume of about 2 mL in the vertical section. At the end of a distillation, vapor would fill this volume, but it could not be forced through the system. No liquid would remain in the distillation flask. Assuming this holdup volume of 12 mL, use the ideal gas law and assume a boiling point of 100°C (760 mm Hg) to calculate the number of microliters of liquid (d = 0.9 g/mL, MW = 200) that would recondense into the distillation flask on cooling.read the Procedure and answer the post lab questions below: Using a balance, mass between 1.50 – 2.00 grams of sodium carbonate in a pre-massed 150mL beaker. Add 20 mL of distilled water and stir thoroughly to make sure all the crystals are dissolved. Rinse the stirring rod with a little distilled water after stirring. Using a balance, mass between 1.50 – 2.00 grams of calcium chloride dihydrate in a pre-massed 50 mL beaker. Repeat Step 2 for the solution in the 50 mL beaker. Pour the calcium chloride solution into the 150mL beaker containing the sodium carbonate solution and stir. Mass a piece of filter paper. Fold the filter paper and place it into the funnel. Wet it with a little distilled water to ensure that it is stuck to the sides of the funnel. Slowly pour the mixture from the beaker into the funnel and collect the filtrate into a 125mL erlenmeyer flask. Do not allow the mixture to rise above the edge of the filter paper. Rinse the beaker with about 10 mL of distilled water.…read the Procedure and answer the post lab questions below: Using a balance, mass between 1.50 – 2.00 grams of sodium carbonate in a pre-massed 150mL beaker. Add 20 mL of distilled water and stir thoroughly to make sure all the crystals are dissolved. Rinse the stirring rod with a little distilled water after stirring. Using a balance, mass between 1.50 – 2.00 grams of calcium chloride dihydrate in a pre-massed 50 mL beaker. Repeat Step 2 for the solution in the 50 mL beaker. Pour the calcium chloride solution into the 150mL beaker containing the sodium carbonate solution and stir. Mass a piece of filter paper. Fold the filter paper and place it into the funnel. Wet it with a little distilled water to ensure that it is stuck to the sides of the funnel. Slowly pour the mixture from the beaker into the funnel and collect the filtrate into a 125mL erlenmeyer flask. Do not allow the mixture to rise above the edge of the filter paper. Rinse the beaker with about 10 mL of distilled water.…
- How can you tell that a compound is impure? (or pure?) What are the characteristics considered when taking a melting point? What is recrystallization? What is happening on a molecular level (videos are provided) How are solvents chosen for recrystallization? (single solvent or mixed-solvent system).What are the properties of a good solvent system? How are crystals collected?When isolating the solid after recrystallization using vacuum filtration what solvent should you use to aid in the rinse from the Erlenmeyer flask to the vacuum filter funnel? (Only pick one answer) Group of answer choices: Cold ethyl acetate Cold ethanol Hot ethyl acetate Hot ethanol Hot water Cold water None of the above, it should not be risnedSome organic solvents do not work well in liquid-liquid aqueous extractions. Ethanol (HOCH2CH3) is a common inexpensive solvent, but is a poor solvent for extractions. In ten or fewer words, provide an explanation for why ethanol is a poor solvent selection for extraction. Hint: you may want to look up various properties of the molecule.