Question 4 What is the percent by volume of ethanol (C,H,0) in the final solution when 135mL of eth- anol is diluted to a volume of 345mL with water? 39.1% (V/v) 63.5% (v/v) 39.1% (m/m) 63.1 M

Q: 15g of sugar was added to the 120g of 20% sugar solution, what is the percent concentration of the…

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Q: Question A. How many pul of serum WIll be reql 5 dilution of serum in saline? Question B. A sample…

A: Interpretation : We have to calculate the final volume after dilution.

Q: I need the answer as soon as possible

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Q: Question 6 A patient receives 100.0 g of glucose in the next 12 hours. How many liters of a 5.0% m/v…

A: mass of glucose given to the patient=100.0g percentage of w/v=5%

Q: Calculate the volume percent of 418 mL of acetone in enough water to give 1.23×103 mL of solution.…

A: Given : Volume of acetone = 418 mL And volume of solution = 1.23 X 103 mL = 1230 mL

Q: Ement 15: Colligative Properties Experiment 15: Colligative Properties 7. Solution preparation: a.…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Dilution Problems Worksheet (M1V1 = M2V2) 1. How much of a 15.0 M stock solution do you need to…

A: Hydrogen fluoride is a chemical compound which have chemical formula HF. This is colourless gas or…

Q: Question 28:What is the initial volume, in milliliters, needed to prepare each of the following…

A: Dilution calculation can be done using the formula given below,c1*V1               =          c2*V2

Q: QUESTION 2 Calculate the osmotic pressure of a solution prepared by dissolving 0.0442 g C9H8O4 (MW…

A: Given, Osmotic pressure (π) = ? mass of C9H8O4 = 0.0442 g molar mass of C9H8O4 = 180 g/mol Volume of…

Q: QUESTION 7 What is the freezing point depression (ATF) of a 12.6-m solution of ethylene glycol…

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Q: -4 At 25.0 °C the Henry's Law constant for nitrogen trifluoride (NF, gas in water is 7.9 x 10…

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Q: Question 3in A solution is made at ARCC with 14.03 g of the sugar Ayanalos in a 50 mL volumetric…

A: Mass %ge of the solution can be calculated by dividing the mass of solute with the total mass of…

Q: Question11 The freezing point of t-butanol is 25.50°C and K is 9.1°C kg/ mol. Usually t-butanol…

A: Given:Actual boiling point of t-butanol, Tb= 25.50oCdepressed boiling point, Tb' =24.59oCKf =…

Q: solution containing 12.0 mmol CaCl2.2H2O is diluted to 1 L. Calculate the number of grams of CaCl2…

A: Given values mmoles of CaCl2 = 12.0mmol = 0.0120 mol Molar mass = 111g/mol Mass of CaCl2 =…

Q: Question 14 How many mL of 0.625 M KBr are needed to prepare 2.50 L of 0.0500 M KBr? O 200. mL O…

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Q: Question 2 The Henry's Law constant for axygen gas (MM 32.00 g/mol) dissolved in water is 1.3 10…

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Q: QUESTION 10 A 0.128 g sample of KHP (HKC8H404) required 28.54 mL of NaOH solution to reach a…

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Q: Question 1 1. The concentration of a 3500ml aqueous HCl solution was increased from 0.15M to 0.25M…

A: Given - - > Initial Volume, V1 = 3500 ml Initial Molarity, M1 = 0.15 M After evaporation the…

Q: Choose the solvent below that would show the greatest boiling point elevation when used to make a…

A: Elevation in boiling point is the increase in temperature of solution with respect to the…

Q: Question 22 A solution of cylcohexane and toluene is 43.0% cylcohexane by volume. How many ml of…

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Q: QUESTION 1 How many grams of sodium hydroxide are in 5.1 liters of a 0.17 M NaOH solution?

A: Given  Volume      = 5.1 Litre  Molarity     = 0.17 M  mass of NaOH = ?

Q: What is the percent by weight (m/m) of a solution that contains 28 g NaCI disssolved in 88 g water?…

A: The percent by weight (m/m) of a solution is calculated as: m/m%=Mass of soluteMass of solution×100%…

Q: Question 1 What mass of glucose, CH1206, is necessary to prepare 250. milliliters of a 1.00M aqueous…

A: Given-> Volume = 250 ml = 0.250 L (1L =1000 ml) Molarity = 1.00 M

Q: questions Mass of unknown 150 g salt Mass of water 500.0 g 0.522 °C/m K for water K, for water 1.86…

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Q: Caluclate the concentration of each solution in mass percent. 8.72g C2H20 IN 76.1g H2O

A: The percentage concentration of any solution is generally expressed using mass percent. The formula…

Q: Question 2 The density of a 3.539 M HNO3 aqueous solution is 1.150 g mL-1 at 20 °C. What is the…

A: Given Molarity = 3.539 M density of solution = 1.150 g/ml Molar mass of HNO3 = 63.02 g/mol

Q: Question9 A solution is prepared by dissolving 27.0 g urea. (NH2);CO, in 150.0 g water. Calculate…

A: In the given question we have to calculate the boiling point of the solution. Given data: mass of…

Q: Question 5 What volume of water is needed to dilute concentrated HCL (12 M) to give a 2.4 M solution…

A: Given, N1= 12M V1=? N2=2.4 M V2=500 mls

Q: 2. How many mL water and needed if 54.3g of KBr are dissolved to make a 0.32M solution?

A: Required amount of water as a solvent to prepare a solution of desired molarity can be calculated as…

Q: 10. Challenge Question: Exactly 16.0 mL of a solution A is diluted to 300 mL, resulting in a new…

A: Number of moles of a chemical compound is used to measure the amount of the compound in a solution…

Q: QUESTION 2 Which of the following is true about the concentration units for a solution consisting of…

A: Given,  Which of the following is true about the concentration units for a solution consisting of…

Q: 29. If 123 mL of a 1.1 M glucose solution is diluted to 500.0 mL, what is the molarity of the…

A: Given data: 123 mL of 1.1 M glucose solution Volume of diluted solution 500 mL

Q: What volume of 1.50 mol/L stock solution is needed to make 125 ml of a 0.60 mol/L? 1.50 ml 2.7.2…

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Q: Question 2 Which of the following has the LOWEST osmolarity? 50 mM KCI 100 mM sucrose 40 mM CaCl2 90…

A: The solution is given below -

Q: Question 30 ed Adding 1.00 g of benzene C6H6 (78.1 g/mol) to 80.0 g of an organic solvent lowers the…

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Q: QUESTION 1 a) A 400 mL solution contains 0.138 g NaCl. Calculate the ppm concentration of NaCl. b)…

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Q: How much water is needed to prepare 340 mL of a 4 M solution from a 20 M stock solution?

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Q: bottle contains 72 mL of vanilla extract solution.  If the solution contains 59 mL of alcohol, what…

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Q: QUESTION 3 Isopropyl alcohol, C3H7OH, is a nonelectrolyte. A 154.00 g sample of isopropyl alcohol is…

A: Given, Mass of isopropyl alcohol = 154.00 g Mass of water solvent = 250.00 g = 0.250 Kg Note:  Van't…

Q: How many grams of Na OH must be added to 0.58 L of water to make 4.9% (w/v) solution. Report only…

A: Given, Percentage of NaOH solution = 4.9 % Note: assuming no change in the volume Volume of water =…

Q: Question 34 If 704 g of a acetophenone is dissolved in 1960 g of acetic acid solvent, calculate the…

A: Mass of acetophenone = 704 g Mass of solvent (acetic acid) = 1960 g Molar mass of acetophenone =…

Q: 2. How much sugar (C12H22O11) in grams must be added to 450 mL water to make a 20% sugar solution?…

A: Given that: Volume of water = 450 mL 20% sugar solution Mass of sugar = ?

Q: Calculate the problems below. Write your solution and box your final answer on the answer sheets…

A: Depression in the freezing point is the difference between the freezing point of the pure solvent…

Q: 7. Determine the molarity if 7.82 grams of naphthalene (C10HS) were dissolved in 85.2 mL of benzene…

A: Molarity = Given Mass /(Molar Mass X volume(L)

Q: What volume of water is necessary to prepare a 0.10 M H3PO4 solution using 25 mL of a 10 M stock…

A: A solution consists of solute and solvent. A solute is defined as the component present in a smaller…

Q: Solve the following problems. 1. What is the percent by mass of NaHCO3 in a solution containing 20.0…

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Q: 2. Potassium fluoride has a solubility of 92 g of KF in 100 g of H2O at 18 °C. Determine if each of…

A: Record the given data, Solubility of potassium fluoride (KF)=92 g Mass of water =100 g Temperature=…

Q: QUESTION NO. 6: The density of acetonitrile (CH3CN, MW=41.054 g/mol) is 0.786 g/mL and the density…

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