1. Determine the percentages of each element in benzoic acid in terms of: a. percent by weight b. the mole percentage

Q: Another student comes to you during the freezing point depression lab, they accidentally added more…

A: Depression in freezing point: When a solute is dissolved in the solvent, its freezing point…

Q: Briefly explain how you would make the above 2.500 M solution by placing the following in the…

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Q: Briefly explain how you would make the above 2.500 M solution by placing the following in the…

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Q: In the procedure you followed for the above experiment, the pipet that was used to measure the…

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Q: Can you please answer sub question A and B and show all of the steps to the solution please and…

A: In the above problem the solutions are buffer solutions So we will use Henderson Hasselbalch…

Q: What would be the saturation concentration (mole/L) of oxygen (O2) in a river in winter when the air…

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Q: Michele has three samples of a mixture of pure benzoic acid and pure acetanilide and needs to…

A: Melting occurs when the compound is at the temperature where the liquid phase is in equilibrium with…

Q: 6. Air is generally composed of 21% oxygen and 79% nitrogen. Compute for their mole fractions in a…

A: Air is a homogeneous mixture of 21% oxygen, 78% nitrogen and some other gases.

Q: A hospital saline solution is analyzed to confirm its concentration. A 50.0 mL sample with a mass…

A: Mass of NaCl = 0.656 g Moles of NaCl = mass/MM    = 0.656/58.5 = 0.0112 mol Molarity = mole/Volume…

Q: petermine the % mass of sulfur, S at 910 ppm. Computation and Explanation:

A: Given: The concentration of S Solution is 910 ppm To find: % mass of the given concentration

Q: State whether you would want to use a fractional or simple distillation for each of the cases below.…

A: Both distillation process is separation of mixture of compounds A and B. Fractional distillation…

Q: To prepare a solution with a total weight of 50 g that contains phenophthalene at a percentage of…

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Q: WHAT AMOUNT OF SOLUTE AND SOLVENT IS IN A 20 GALLONS SOLUTION CONTAINING 5% SULFURIC ACID?

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Q: To prepare a solution with a total weight of 50 g that contains phenophthalene at a percentage of…

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Q: or each solute, identify the better solvent: water or carbon tetrachloride. Water, H,O Carbon…

A: ANSWER : Water is a polar solvent. Carbon tetrachloride is a non-polar solvent. So, The suitable…

Q: C. Preparation and storage of standard solutions 1. Use the weighed and transferred NaCl powder in…

A: Let's do the schematic diagram according to the procedure given in the question.

Q: Recrystallization and Melting Points When performing recrystallization, it is imperative to cool…

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Q: A mixture consisting  of 15 mole % Phenol in water is to batch distilled at 260 torr, what fraction…

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Q: Commercial bleaching solutions commonly found on store shelves usually are labeled, "Contains at…

A: Temperature affects the bleach shelf life. Thats why the bleach is stored at somewhat less…

Q: I2 is stable as a gas, and can vaporize from the standard solution if it is left open too long.…

A: I2 is stable as a gas, and can vaporize from the standard solution if it is left open too long.…

Q: Compute the mass of KI needed to prepare 500 mL of a 0.750 M solution. Show your work.

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Q: Please show step-by-step solution.

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Q: Please ignore my work! Find the molarity of the acetic acid in each trial and find the mass percent…

A: The ratio of moles of solute to the volume of solution in liters is known as molarity.

Q: In the box below, draw 3 or 4 models of Nacl and 3 or 4 models of H,O. Make sure all of good at…

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Q: Calculate the number of grams of solute that has to be used to make the following solution: 216.5 mL…

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Q: Report Sheet: Determination of Molecular Weight Through Freezing Point Depression Analysis Part A:…

A: A solution is formed by mixing solute and a solvent that results in a homogenous substance.  The…

Q: how to make a stock solution of 10% ethanol and 40% water? do the necessary volume to concentration…

A: To make a stock solution of 10% ethanol and 40% water.

Q: Describe how you will prepare 600.0g of 0.250M NaCl soulution from solid NaCl and water as solvent

A: Given ->  Weight of NaCl = 600.0 gm Molarity of NaCl = 0.250 M

Q: Write the ionic forms of the following elements and compute for the respective milliequivalent…

A: Given that -  1.Iron= 57 g/mole 2. Magnesium= 24 g/mole 3. Potassium=39 g/mole 4. Ammonium nitrogen=…

Q: To make a 2.0M solution, on could take 2.00 moles of solute and add... A) 1.00L of solvent  B)…

A: 2.0 M solution means that 2.0 moles of solute is added to a solution of 1 L.

Q: A-standardiation of the sodium hxide solution 1. Or balance mass an amount of potassium hydrogen…

A: Given  Molarity bof NaOH = 0.1 M  Volume of NaOH = 12 mL  1L = 1000 mL  Volume of NaOH = 0.012 L

Q: Safari File Edit View History Bookmarks Window Help )) 51% Sun 10:44 AM…

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Q: How do we keep relative supersaturation low by controlling solute concentration? A concentration…

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Q: Given A solution of:...is boiled SOLVENT: Water (H2O) - 100mL or 100.00g SOLUTE: Salt (NaCl) -…

A: Given, Mass of solvent, = 100 .00 g Mass of Solute, i.e NaCl = 11.60 g  Molar mass of NaCl = 58.44…

Q: (Show setup for calculation on this and lines 9–11) 9. Moles of H,O2 10. Grams of H,O, 11. Mass…

A: 9.) To calculate moles of H2O2 , we would first write a balanced chemical for the production of O2…

Q: If water was used to rinse the pipette used for the NaOH solution aliquots, how would this affect…

A: Rinsing a pipette:- It is always advised that first, we shall rinse the pipette with distilled water…

Q: A 0.8250 g of soda ash sample was dissolved in distilled H₂O and diluted to 250-mL using a…

A: According to the bartleby guidelines for the multipart questions, I can solve only first three. So…

Q: Calculate the mole fraction of benzene in solution containing 30% by mass in carbon tetrachteride.

A: Given :-  percent by mass of benzene in solution = 30%  To calculate :-  mole fraction of benzene

Q: Compute for the % mass or weight salt solution by mixing 622g of NaCl with 1.86 liters of H20.

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Q: [References] Safrole is contained in oil of sassafras and was once used to flavor root beer. A…

A: Mass = 2.39 mg  Kf = 8°C/m Temperature difference = 26.84-25.7 =1.14°C

Q: How do we keep relative supersaturation low by controlling solute concentration?

A: ANSWER:-Option-3 is correct. 3.Concentration should be lower.

Q: takeAssignmentSessionLocator%3Dassignment-take Save an CHAPTER 13 - SOLUTIONS AND THEIR BEHAVIOR…

A: Given data: Normal boiling point of testosterone (Tbo) = 34.50 ℃ Kb of testosterone = 2.02 ℃/m Mass…

Q: steps for preparing the previous solution (100 mL of Na2CO3 at 15% in weight).

A: In that question we have given 15% of Na2CO3 which dissolve in 100 mL of Solution. it means that 15…

Q: STARTING AMOUNT X What is the molarity of an aqueous solution that contains 0.0720 g C₂H4O₂ per gram…

A: Attached below is the image which contains the explanation as well as the answer in the format you…

Q: 750 wwi.f Hy 1o0% collectron efficenly

A: Given: Concentration of methane given = 25 µg/mL.

Q: Calculate molar mass for delta Tf, molality of t butanol and experimental molar mass of solute. (Kf…

A: The depression or lowering in freezing point is expressed as:

Q: if i want to dilute 30 L ofa 1.5 M FeSO4 solution to a 0.3 M FeSO4 solution how much of the solvent…

A: Initial volume = 30 L  Initial molarity = 1.5 M  New molarity = 0.3 M  New volume = ?

Q: Example 9. A solution contains 25 per cent water, 25 per cent ethanol and 50 per cent acetic acid by…

A: Given: % by mass water=25%% by mass ethanol=25%% by mass acetic acid=50% To find: Mole fraction of…

Q: alculate the moləlity of 53.5% by weight aqueous solution of sodium thiocyanate.

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